no message

.gitignore

@@ -0,0 +1,4 @@
+/target/
+/bin/
+.classpath
+.project

.settings/.jsdtscope

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src/main/webapp"/>
+	<classpathentry excluding="**/node_modules/*|**/*.min.js|**/bower_components/*" kind="src" path="target/m2e-wtp/web-resources"/>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.WebProject">
+		<attributes>
+			<attribute name="hide" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.baseBrowserLibrary"/>
+	<classpathentry kind="output" path=""/>
+</classpath>

.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,6 @@
+eclipse.preferences.version=1
+encoding//src/main/java=UTF-8
+encoding//src/main/resources=UTF-8
+encoding//src/test/java=UTF-8
+encoding//src/test/resources=UTF-8
+encoding/<project>=UTF-8

.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.methodParameters=generate
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
+org.eclipse.jdt.core.compiler.compliance=17
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=17

.settings/org.eclipse.wst.common.component

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?><project-modules id="moduleCoreId" project-version="1.5.0">
+    <wb-module deploy-name="EM-Spring-0.0.1-SNAPSHOT">
+        <wb-resource deploy-path="/" source-path="/target/m2e-wtp/web-resources"/>
+        <wb-resource deploy-path="/" source-path="/src/main/webapp" tag="defaultRootSource"/>
+        <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/java"/>
+        <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/resources"/>
+        <property name="context-root" value="EM-Spring"/>
+        <property name="java-output-path" value="/EM-Spring/target/classes"/>
+    </wb-module>
+</project-modules>

.settings/org.eclipse.wst.common.project.facet.core.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<faceted-project>
+  <fixed facet="wst.jsdt.web"/>
+  <installed facet="java" version="17"/>
+  <installed facet="jst.web" version="4.0"/>
+  <installed facet="wst.jsdt.web" version="1.0"/>
+</faceted-project>

.settings/org.eclipse.wst.jsdt.ui.superType.container

@@ -0,0 +1 @@
+org.eclipse.wst.jsdt.launching.baseBrowserLibrary

.settings/org.eclipse.wst.jsdt.ui.superType.name

@@ -0,0 +1 @@
+Window

.settings/org.eclipse.wst.validation.prefs

@@ -0,0 +1,2 @@
+disabled=06target
+eclipse.preferences.version=1

pom.xml

@@ -15,7 +15,7 @@
     <packaging>war</packaging>
     <name>EM-Spring</name>
     <description>Demo project for Spring Boot</description>
-    <properties>
+        <properties>
         <java.version>17</java.version>
         <lombok.version>1.18.34</lombok.version>
     </properties>

src/main/java/com/example/rhizome/EmSpringApplication.java

@@ -8,8 +8,8 @@ import org.springframework.context.annotation.EnableAspectJAutoProxy;
 @EnableAspectJAutoProxy(proxyTargetClass = true)
 public class EmSpringApplication {
 
-	public static void main(String[] args) {
-		SpringApplication.run(EmSpringApplication.class, args);
-	}
+    public static void main(String[] args) {
+        SpringApplication.run(EmSpringApplication.class, args);
+    }
 
 }

src/main/java/com/example/rhizome/app/domain/model/Department.java

@@ -3,10 +3,19 @@ package com.example.rhizome.app.domain.model;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
+/**
+ * 部署情報の概念を表現するモデルクラスです。
+ */
 @Getter
 @AllArgsConstructor
 public class Department {
-	private final Integer idDepartment;
-	private final String nmDepartment;
+    /**
+     * 部署ID
+     */
+    private final Integer idDepartment;
+    /**
+     * 部署名
+     */
+    private final String nmDepartment;
 
 }

src/main/java/com/example/rhizome/app/domain/model/Employee.java

@@ -3,15 +3,39 @@ package com.example.rhizome.app.domain.model;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
+/**
+ * 社員を表現するモデルクラスです
+ */
 @Getter
 @AllArgsConstructor
 public class Employee {
-	private final Integer idEmployee;
-	private final String nmEmployee;
-	private final String knEmployee;
-	private final String mailAddress;
-	private final String password;
-	private final Integer adminAuth;
-	private final Integer idDepartment;
+    /**
+     * 社員ID
+     */
+    private final Integer idEmployee;
+    /**
+     * 社員名
+     */
+    private final String nmEmployee;
+    /**
+     * 社員名カナ
+     */
+    private final String knEmployee;
+    /**
+     * メールアドレス
+     */
+    private final String mailAddress;
+    /**
+     * パスワード
+     */
+    private final String password;
+    /**
+     * 管理者権限
+     */
+    private final Integer adminAuth;
+    /**
+     * 部署ID
+     */
+    private final Integer idDepartment;
 
 }

src/main/java/com/example/rhizome/app/domain/model/EmployeeInfo.java

@@ -1,14 +1,28 @@
+/*
+ * EmployeeInfo.java
+ *   作成	IT-College	2016
+ *------------------------------------------------------------
+ * Copyright(c) Rhizome Inc. All Rights Reserved.
+ */
 package com.example.rhizome.app.domain.model;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
+/**
+ * 社員情報の概念を表現するモデルクラスです。
+ */
 @Getter
 @AllArgsConstructor
 public class EmployeeInfo {
 
-	private final Employee employee;
-
-	private final Department department;
+    /**
+     * 社員情報
+     */
+    private final Employee employee;
+    /**
+     * 部署名
+     */
+    private final Department department;
 
 }

src/main/java/com/example/rhizome/app/domain/model/LoginInfo.java

@@ -3,12 +3,20 @@ package com.example.rhizome.app.domain.model;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
+/**
+ * ログインを試みる人を表現するモデルクラスです
+ */
+
 @Getter
 @AllArgsConstructor
 public class LoginInfo {
-
-	private String mailAddress;
-
-	private String password;
+    /**
+     * メールアドレス
+     */
+    private String mailAddress;
+    /**
+     * パスワード
+     */
+    private String password;
 
 }

src/main/java/com/example/rhizome/app/domain/model/LoginUser.java

@@ -3,24 +3,49 @@ package com.example.rhizome.app.domain.model;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
+/**
+ * ログイン者を表現するクラスです
+ */
 @Getter
 @AllArgsConstructor
 public class LoginUser {
-	private final Integer idEmployee;
+    /**
+     * 社員ID
+     */
+    private final Integer idEmployee;
+    /**
+     * 社員名
+     */
+    private final String nmEmployee;
+    /**
+     * 社員名カナ
+     */
+    private final String knEmployee;
+    /**
+     * メールアドレス
+     */
+    private final String mailAddress;
+    /**
+     * パスワード
+     */
+    private final String password;
 
-	private final String nmEmployee;
+    /**
+     * 管理者権限
+     */
+    private final Integer adminAuth;
 
-	private final String knEmployee;
+    /**
+     * 部署ID
+     */
+    private final Integer idDepartment;
 
-	private final String mailAddress;
-
-	private final String password;
-
-	private final Integer adminAuth;
-
-	private final Integer idDepartment;
-
-	public boolean isAdminUser() {
-		return getAdminAuth() == 1;
-	}
+    /**
+     * ログインユーザが管理者か
+     *
+     * @return true:管理者 false:一般権限
+     */
+    public boolean isAdminUser() {
+        return getAdminAuth() == 1;
+    }
 }

src/main/java/com/example/rhizome/app/domain/model/SearchConditionDepartment.java

@@ -3,11 +3,19 @@ package com.example.rhizome.app.domain.model;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
+/**
+ * 部署情報の検索要件を表現するモデルクラスです。
+ */
 @Getter
 @AllArgsConstructor
 public class SearchConditionDepartment {
-	private final Integer idDepartment;
-
-	private final String nmDepartment;
+    /**
+     * 部署ID
+     */
+    private final Integer idDepartment;
+    /**
+     * 部署名
+     */
+    private final String nmDepartment;
 
 }

src/main/java/com/example/rhizome/app/domain/model/SearchConditionEmployee.java

@@ -3,13 +3,31 @@ package com.example.rhizome.app.domain.model;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
+/**
+ * 社員情報の検索条件という概念を表現するモデルクラスです
+ */
 @Getter
 @AllArgsConstructor
 public class SearchConditionEmployee {
-	private final Integer idEmployee;
-	private final String nmEmployee;
-	private final String knEmployee;
-	private final String mailAddress;
-	private final Integer idDepartment;
+    /**
+     * 社員ID
+     */
+    private final Integer idEmployee;
+    /**
+     * 社員名
+     */
+    private final String nmEmployee;
+    /**
+     * 社員名カナ
+     */
+    private final String knEmployee;
+    /**
+     * メールアドレス
+     */
+    private final String mailAddress;
+    /**
+     * 部署ID
+     */
+    private final Integer idDepartment;
 
 }

src/main/java/com/example/rhizome/app/domain/service/Login.java

@@ -4,7 +4,7 @@ import com.example.rhizome.app.domain.model.LoginInfo;
 import com.example.rhizome.app.domain.model.LoginUser;
 
 public interface Login {
-	LoginUser doLogin(LoginInfo loginInfo);
+    LoginUser doLogin(LoginInfo loginInfo);
 
-	boolean canLogin(LoginInfo loginInfo);
+    boolean canLogin(LoginInfo loginInfo);
 }

src/main/java/com/example/rhizome/app/domain/service/RegisterDepartment.java

@@ -3,5 +3,5 @@ package com.example.rhizome.app.domain.service;
 import com.example.rhizome.app.domain.model.Department;
 
 public interface RegisterDepartment {
-	void registerDepartment(Department department);
+    void registerDepartment(Department department);
 }

src/main/java/com/example/rhizome/app/domain/service/RegisterEmployee.java

@@ -3,5 +3,5 @@ package com.example.rhizome.app.domain.service;
 import com.example.rhizome.app.domain.model.Employee;
 
 public interface RegisterEmployee {
-	void registerEmployee(Employee employee);
+    void registerEmployee(Employee employee);
 }

src/main/java/com/example/rhizome/app/domain/service/SearchEmployeeInfo.java

@@ -1,12 +1,12 @@
 package com.example.rhizome.app.domain.service;
 
-import java.util.List;
-
 import com.example.rhizome.app.domain.model.EmployeeInfo;
 import com.example.rhizome.app.domain.model.SearchConditionEmployee;
 
-public interface SearchEmployeeInfo {
-	List<EmployeeInfo> selectAll();
+import java.util.List;
 
-	List<EmployeeInfo> searchBy(SearchConditionEmployee searchConditionEmployee);
+public interface SearchEmployeeInfo {
+    List<EmployeeInfo> selectAll();
+
+    List<EmployeeInfo> searchBy(SearchConditionEmployee searchConditionEmployee);
 }

src/main/java/com/example/rhizome/app/domain/service/UpdateEmployee.java

@@ -3,6 +3,6 @@ package com.example.rhizome.app.domain.service;
 import com.example.rhizome.app.domain.model.Employee;
 
 public interface UpdateEmployee {
-	void updateEmployee(Employee beforeEmployee, Employee updateEmployee);
+    void updateEmployee(Employee beforeEmployee, Employee updateEmployee);
 
 }

src/main/java/com/example/rhizome/app/domain/service/impl/DeleteEmployeeImpl.java

@@ -1,25 +1,33 @@
 package com.example.rhizome.app.domain.service.impl;
 
+import com.example.rhizome.app.domain.service.DeleteEmployee;
+import com.example.rhizome.app.infra.repository.EmployeeRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
-import com.example.rhizome.app.domain.service.DeleteEmployee;
-import com.example.rhizome.app.infra.repository.EmployeeRepository;
-
+/**
+ * Employee レコード削除関連の機能を持つサービス
+ */
 @Service
 @Transactional
 public class DeleteEmployeeImpl implements DeleteEmployee {
 
-	EmployeeRepository employeeRepository;
+    EmployeeRepository employeeRepository;
 
-	@Autowired
-	public DeleteEmployeeImpl(EmployeeRepository employeeRepository) {
-		this.employeeRepository = employeeRepository;
-	}
+    @Autowired
+    public DeleteEmployeeImpl(EmployeeRepository employeeRepository) {
+        this.employeeRepository = employeeRepository;
+    }
 
-	public void deleteEmployee(Integer idEmployee) {
-		employeeRepository.deleteById(idEmployee);
-	}
+
+    /**
+     * idEmployee を元に employee データを削除
+     *
+     * @param idEmployee 削除対象のidEmployee
+     */
+    public void deleteEmployee(Integer idEmployee) {
+        employeeRepository.deleteById(idEmployee);
+    }
 
 }

src/main/java/com/example/rhizome/app/domain/service/impl/LoginImpl.java

@@ -1,38 +1,55 @@
 package com.example.rhizome.app.domain.service.impl;
 
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
 import com.example.rhizome.app.domain.model.LoginInfo;
 import com.example.rhizome.app.domain.model.LoginUser;
 import com.example.rhizome.app.domain.service.Login;
 import com.example.rhizome.app.infra.entity.EmployeeEntity;
 import com.example.rhizome.app.infra.repository.EmployeeRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
+/**
+ * ログイン系の機能を集約させるサービスクラスです。
+ */
 @Service
 @Transactional
 public class LoginImpl implements Login {
 
-	EmployeeRepository employeeRepository;
+    EmployeeRepository employeeRepository;
 
-	@Autowired
-	public LoginImpl(EmployeeRepository employeeRepository) {
-		this.employeeRepository = employeeRepository;
-	}
+    @Autowired
+    public LoginImpl(EmployeeRepository employeeRepository) {
+        this.employeeRepository = employeeRepository;
+    }
 
-	public LoginUser doLogin(LoginInfo loginInfo) {
-		return employeeRepository
-				.findByMailAddressAndPassword(loginInfo.getMailAddress(), loginInfo.getPassword())
-				.orElse(new EmployeeEntity())
-				.createLoginUser();
 
-	}
+    /**
+     * メールアドレス、パスワードでログイン判定を行う
+     *
+     * @param loginInfo ログインを試みるアカウント
+     * @return loginUser のインスタンス
+     */
+    public LoginUser doLogin(LoginInfo loginInfo) {
+        // ログイン情報を元にログインユーザーを取得
+        return employeeRepository
+                .findByMailAddressAndPassword(loginInfo.getMailAddress(), loginInfo.getPassword())
+                .orElse(new EmployeeEntity())
+                .createLoginUser();
 
-	public boolean canLogin(LoginInfo loginInfo) {
-		return employeeRepository
-				.findByMailAddressAndPassword(loginInfo.getMailAddress(), loginInfo.getPassword())
-				.isPresent();
+    }
 
-	}
+    /**
+     * メールアドレス、パスワードでログイン判定を行う
+     *
+     * @param loginInfo ログインを試みるアカウント
+     * @return loginUser のインスタンス
+     */
+    public boolean canLogin(LoginInfo loginInfo) {
+        // ログイン情報を元にログインユーザーを取得
+        return employeeRepository
+                .findByMailAddressAndPassword(loginInfo.getMailAddress(), loginInfo.getPassword())
+                .isPresent();
+
+    }
 }

src/main/java/com/example/rhizome/app/domain/service/impl/RegisterEmployeeImpl.java

@@ -1,26 +1,34 @@
 package com.example.rhizome.app.domain.service.impl;
 
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
 
 import com.example.rhizome.app.domain.model.Employee;
 import com.example.rhizome.app.domain.service.RegisterEmployee;
 import com.example.rhizome.app.infra.entity.EmployeeEntity;
 import com.example.rhizome.app.infra.repository.EmployeeRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
+/**
+ * Employee テーブルの登録系の機能を集約させるサービスクラスです。
+ */
 @Service
 @Transactional
 public class RegisterEmployeeImpl implements RegisterEmployee {
 
-	EmployeeRepository employeeRepository;
+    EmployeeRepository employeeRepository;
 
-	@Autowired
-	public RegisterEmployeeImpl(EmployeeRepository employeeRepository) {
-		this.employeeRepository = employeeRepository;
-	}
+    @Autowired
+    public RegisterEmployeeImpl(EmployeeRepository employeeRepository) {
+        this.employeeRepository = employeeRepository;
+    }
 
-	public void registerEmployee(Employee employee) {
-		employeeRepository.save(EmployeeEntity.convertFrom(employee));
-	}
+    /**
+     * employee インスタンスの内容を登録する
+     *
+     * @param employee 登録対象のデータ
+     */
+    public void registerEmployee(Employee employee) {
+        employeeRepository.save(EmployeeEntity.convertFrom(employee));
+    }
 }

src/main/java/com/example/rhizome/app/domain/service/impl/SearchDepartmentImpl.java

@@ -1,5 +1,6 @@
 package com.example.rhizome.app.domain.service.impl;
 
+
 import java.util.List;
 
 import org.springframework.beans.factory.annotation.Autowired;
@@ -13,63 +14,70 @@ import com.example.rhizome.app.domain.service.SearchDepartment;
 import com.example.rhizome.app.infra.entity.DepartmentEntity;
 import com.example.rhizome.app.infra.repository.DepartmentRepository;
 
+/**
+ * 部署情報検索系の機能を集約させるサービスクラスです。
+ */
 @Service
 @Transactional
 public class SearchDepartmentImpl implements SearchDepartment {
 
-	DepartmentRepository departmentRepository;
+    DepartmentRepository departmentRepository;
 
-	@Autowired
-	public SearchDepartmentImpl(DepartmentRepository departmentRepository) {
-		this.departmentRepository = departmentRepository;
-	}
+    /**
+     * コンストラクタ
+     *
+     * @param departmentRepository DI対象
+     */
+    @Autowired
+    public SearchDepartmentImpl(DepartmentRepository departmentRepository) {
+        this.departmentRepository = departmentRepository;
+    }
 
-	public List<Department> selectAll() {
-		return DepartmentEntity.createDepartmentList(departmentRepository.findAll());
-	}
+    /**
+     * 部署情報を全件取得する
+     *
+     * @return 取得した部署情報レコード全件
+     */
+    public List<Department> selectAll() {
+        return DepartmentEntity.createDepartmentList(departmentRepository.findAll());
+    }
 
-	public List<Department> searchBy(SearchConditionDepartment searchConditionDepartment) {
-		return DepartmentEntity
-				.createDepartmentList(
-						departmentRepository.findAll(Specification
-								.where(DepartmentRepository
-										.idDepartmentEqual(searchConditionDepartment.getIdDepartment()))
-								.and(DepartmentRepository
-										.nmDepartmentEqual(searchConditionDepartment.getNmDepartment()))));
+    /**
+     * searchConditionDepartment の情報を元に Department のレコードを取得
+     *
+     * @param searchConditionDepartment 検索条件
+     * @return 検索結果のレコード
+     */
+    public List<Department> searchBy(SearchConditionDepartment searchConditionDepartment) {
+        // 動的に検索条件を絞り込む
+        // Specification は Criteria API の Predicate をラップしたもの
+        return DepartmentEntity
+                .createDepartmentList(
+                        departmentRepository.findAll(Specification
+                                .where(DepartmentRepository.idDepartmentEqual(searchConditionDepartment.getIdDepartment()))
+                                .and(DepartmentRepository.nmDepartmentLike(searchConditionDepartment.getNmDepartment()))
+                        )
+                );
 
-	}
+    }
 
-	public List<Department> searchByWithLike(SearchConditionDepartment searchConditionDepartment) {
-		return DepartmentEntity
-				.createDepartmentList(
-						departmentRepository.findAll(Specification
-								.where(DepartmentRepository
-										.idDepartmentEqual(searchConditionDepartment.getIdDepartment()))
-								.and(DepartmentRepository
-										.nmDepartmentLike(searchConditionDepartment.getNmDepartment()))));
-
-	}
-
-	@Override
-	public List<Department> searchByDepartmentName(SearchConditionDepartment searchConditionDepartment) {
-
-		return DepartmentEntity
-				.createDepartmentList(
-						departmentRepository.findAll(Specification
-								.where(DepartmentRepository
-										.nmDepartmentEqual(searchConditionDepartment.getNmDepartment()))));
-
-	}
-
-	@Override
-	public List<Department> searchByDepartmentId(SearchConditionDepartment searchConditionDepartment) {
-
-		return DepartmentEntity
-				.createDepartmentList(
-						departmentRepository.findAll(Specification
-								.where(DepartmentRepository
-										.idDepartmentEqual(searchConditionDepartment.getIdDepartment()))));
-
-	}
+    /**
+     * searchConditionDepartment の情報を元に Department のレコードを取得
+     * 部分一致検索
+     *
+     * @param searchConditionDepartment 検索条件
+     * @return 検索結果のレコード
+     */
+    public List<Department> searchByWithLike(SearchConditionDepartment searchConditionDepartment) {
+        // 動的に検索条件を絞り込む
+        // Specification は Criteria API の Predicate をラップしたもの
+        return DepartmentEntity
+                .createDepartmentList(
+                        departmentRepository.findAll(Specification
+                                .where(DepartmentRepository.idDepartmentEqual(searchConditionDepartment.getIdDepartment()))
+                                .and(DepartmentRepository.nmDepartmentLike(searchConditionDepartment.getNmDepartment()))
+                        )
+                );
 
+    }
 }

src/main/java/com/example/rhizome/app/domain/service/impl/SearchEmployeeImpl.java

@@ -1,43 +1,70 @@
 package com.example.rhizome.app.domain.service.impl;
 
-import java.util.List;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
 import com.example.rhizome.app.domain.model.Employee;
 import com.example.rhizome.app.domain.model.LoginUser;
 import com.example.rhizome.app.domain.service.SearchEmployee;
 import com.example.rhizome.app.infra.entity.EmployeeEntity;
 import com.example.rhizome.app.infra.repository.EmployeeRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
+import java.util.List;
+
+/**
+ * Employee テーブル検索系の機能を集約させるサービスクラスです。
+ */
 @Service
 @Transactional
 public class SearchEmployeeImpl implements SearchEmployee {
 
-	EmployeeRepository employeeRepository;
+    EmployeeRepository employeeRepository;
 
-	@Autowired
-	public SearchEmployeeImpl(EmployeeRepository employeeRepository) {
-		this.employeeRepository = employeeRepository;
-	}
+    @Autowired
+    public SearchEmployeeImpl(EmployeeRepository employeeRepository) {
+        this.employeeRepository = employeeRepository;
+    }
 
-	public List<Employee> searchEmployee(String mailAddress) {
-		return EmployeeEntity.createEmployeeList(employeeRepository.findByMailAddress(mailAddress).stream().toList());
-	}
 
-	public LoginUser searchLoginUser(String mailAddress) {
-		return employeeRepository.findByMailAddress(mailAddress).orElse(new EmployeeEntity()).createLoginUser();
-	}
+    /**
+     * mailAddress を元に Employee Table を検索します。
+     *
+     * @param mailAddress 検索対象の mailAddress
+     * @return Table から取得したレコードの情報
+     */
+    public List<Employee> searchEmployee(String mailAddress) {
+        return EmployeeEntity.createEmployeeList(employeeRepository.findByMailAddress(mailAddress).stream().toList());
+    }
 
-	public Employee searchEmployeeByIdEmployee(Integer idEmployee) {
-		return EmployeeEntity
-				.createEmployee(employeeRepository.findByIdEmployee(idEmployee).orElse(new EmployeeEntity()));
-	}
+    /**
+     * mailAddress を元に ログイン者の情報 を検索します。
+     *
+     * @param mailAddress 検索対象の mailAddress
+     * @return login者の情報
+     */
+    public LoginUser searchLoginUser(String mailAddress) {
+        return employeeRepository.findByMailAddress(mailAddress).orElse(new EmployeeEntity()).createLoginUser();
+    }
 
-	@Override
-	public List<Employee> searchEmployeeByIdDepartment(Integer idDepartment) {
-		return EmployeeEntity.createEmployeeList(employeeRepository.findByIdDepartment(idDepartment));
-	}
+    /**
+     * idEmployee を元に Employee Table を検索します。
+     *
+     * @param idEmployee 検索対象の idEmployee
+     * @return Table から取得したレコードの情報
+     */
+    public Employee searchEmployeeByIdEmployee(Integer idEmployee) {
+        return EmployeeEntity.createEmployee(employeeRepository.findByIdEmployee(idEmployee).orElse(new EmployeeEntity()));
+    }
+
+
+    /**
+     * idDepartment を元に Employee Table を検索します。
+     *
+     * @param idDepartment 部署ID
+     * @return Table から取得したレコードの情報
+     */
+    @Override
+    public List<Employee> searchEmployeeByIdDepartment(Integer idDepartment) {
+        return EmployeeEntity.createEmployeeList(employeeRepository.findByIdDepartment(idDepartment));
+    }
 }

src/main/java/com/example/rhizome/app/domain/service/impl/SearchEmployeeInfoImpl.java

@@ -1,45 +1,62 @@
 package com.example.rhizome.app.domain.service.impl;
 
-import java.util.List;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.data.jpa.domain.Specification;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
 import com.example.rhizome.app.domain.model.EmployeeInfo;
 import com.example.rhizome.app.domain.model.SearchConditionEmployee;
 import com.example.rhizome.app.domain.service.SearchEmployeeInfo;
 import com.example.rhizome.app.infra.entity.EmployeeDepartmentEntity;
 import com.example.rhizome.app.infra.repository.EmployeeInfoRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.jpa.domain.Specification;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
+import java.util.List;
+
+/**
+ * SearchEmployeeInfoImpl (employee join department) 検索系の機能を集約させるサービスクラスです
+ */
 @Service
 @Transactional
 public class SearchEmployeeInfoImpl implements SearchEmployeeInfo {
 
-	EmployeeInfoRepository employeeInfoRepository;
+    EmployeeInfoRepository employeeInfoRepository;
 
-	@Autowired
-	public SearchEmployeeInfoImpl(EmployeeInfoRepository employeeInfoRepository) {
-		this.employeeInfoRepository = employeeInfoRepository;
-	}
+    @Autowired
+    public SearchEmployeeInfoImpl(EmployeeInfoRepository employeeInfoRepository) {
+        this.employeeInfoRepository = employeeInfoRepository;
+    }
 
-	public List<EmployeeInfo> selectAll() {
 
-		return EmployeeDepartmentEntity.createEmployeeInfoList(employeeInfoRepository.findAll());
+    /**
+     * EmployeeInfo (employee join department) のレコードを全件取得
+     *
+     * @return 取得したレコード全件
+     */
+    public List<EmployeeInfo> selectAll() {
 
-	}
+        return EmployeeDepartmentEntity.createEmployeeInfoList(employeeInfoRepository.findAll());
 
-	public List<EmployeeInfo> searchBy(SearchConditionEmployee searchConditionEmployee) {
-		return EmployeeDepartmentEntity
-				.createEmployeeInfoList(
-						employeeInfoRepository.findAll(Specification
-								.where(EmployeeInfoRepository.idEmployeeEqual(searchConditionEmployee.getIdEmployee()))
-								.and(EmployeeInfoRepository.nmEmployeeEqual(searchConditionEmployee.getNmEmployee()))
-								.and(EmployeeInfoRepository.knEmployeeEqual(searchConditionEmployee.getKnEmployee()))
-								.and(EmployeeInfoRepository.mailAddressEqual(searchConditionEmployee.getMailAddress()))
-								.and(EmployeeInfoRepository
-										.idDepartmentEqual(searchConditionEmployee.getIdDepartment()))));
+    }
 
-	}
+    /**
+     * SearchConditionEmployee の情報を元に EmployeeInfo (employee join department) のレコードを取得
+     *
+     * @param searchConditionEmployee 検索条件
+     * @return 検索結果のレコードリスト
+     */
+    public List<EmployeeInfo> searchBy(SearchConditionEmployee searchConditionEmployee) {
+        // 動的に検索条件を絞り込む
+        // Specification は Criteria API の Predicate をラップしたもの
+        return EmployeeDepartmentEntity
+                .createEmployeeInfoList(
+                        employeeInfoRepository.findAll(Specification
+                                .where(EmployeeInfoRepository.idEmployeeEqual(searchConditionEmployee.getIdEmployee()))
+                                .and(EmployeeInfoRepository.nmEmployeeEqual(searchConditionEmployee.getNmEmployee()))
+                                .and(EmployeeInfoRepository.knEmployeeEqual(searchConditionEmployee.getKnEmployee()))
+                                .and(EmployeeInfoRepository.mailAddressEqual(searchConditionEmployee.getMailAddress()))
+                                .and(EmployeeInfoRepository.idDepartmentEqual(searchConditionEmployee.getIdDepartment()))
+                        )
+                );
+
+    }
 }

src/main/java/com/example/rhizome/app/domain/service/impl/UpdateEmployeeImpl.java

@@ -1,42 +1,60 @@
 package com.example.rhizome.app.domain.service.impl;
 
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
 import com.example.rhizome.app.domain.model.Employee;
 import com.example.rhizome.app.domain.service.UpdateEmployee;
 import com.example.rhizome.app.infra.entity.EmployeeEntity;
 import com.example.rhizome.app.infra.repository.EmployeeRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
+/**
+ * employee の更新系の機能を集約させるサービスクラスです。
+ */
 @Service
 @Transactional
 public class UpdateEmployeeImpl implements UpdateEmployee {
 
-	EmployeeRepository employeeRepository;
+    EmployeeRepository employeeRepository;
 
-	@Autowired
-	public UpdateEmployeeImpl(EmployeeRepository employeeRepository) {
-		this.employeeRepository = employeeRepository;
-	}
+    @Autowired
+    public UpdateEmployeeImpl(EmployeeRepository employeeRepository) {
+        this.employeeRepository = employeeRepository;
+    }
 
-	public void updateEmployee(Employee beforeEmployee, Employee updateEmployee) {
+    /**
+     * employee の情報を元に employee table のレコードを更新する
+     *
+     * @param beforeEmployee 更新前のデータ
+     * @param updateEmployee 更新後のデータ
+     */
+    public void updateEmployee(Employee beforeEmployee, Employee updateEmployee) {
 
-		employeeRepository.save(EmployeeEntity.convertFrom(mergeEmployee(beforeEmployee, updateEmployee)));
+        employeeRepository.save(EmployeeEntity.convertFrom(mergeEmployee(beforeEmployee, updateEmployee)));
 
-	}
+    }
 
-	private Employee mergeEmployee(Employee beforeEmployee, Employee updateEmployee) {
-		return new Employee(
-				updateEmployee.getIdEmployee(),
-				updateEmployee.getNmEmployee(),
-				updateEmployee.getKnEmployee(),
-				updateEmployee.getMailAddress(),
-				updateEmployee.getPassword().isBlank() ? beforeEmployee.getPassword() : updateEmployee.getPassword(),
-				updateEmployee.getAdminAuth() == null ? beforeEmployee.getAdminAuth() : updateEmployee.getAdminAuth(),
-				updateEmployee.getIdDepartment() == null ? beforeEmployee.getIdDepartment()
-						: updateEmployee.getIdDepartment());
+    /**
+     * 更新前のデータと更新対象のデータをマージする
+     *
+     * @param beforeEmployee 更新前のデータ
+     * @param updateEmployee 更新対象のデータ
+     * @return マージしたデータ
+     */
+    private Employee mergeEmployee(Employee beforeEmployee, Employee updateEmployee) {
+        // 更新対象のデータのパスワードが空文字の場合は、更新前のパスワードを使用する
+        // 更新対象のデータの管理者権限が null の場合は、更新前の管理者権限を使用する
+        // 更新対象のデータの部署IDが null の場合は、更新前の部署IDを使用する
+        return new Employee(
+                updateEmployee.getIdEmployee(),
+                updateEmployee.getNmEmployee(),
+                updateEmployee.getKnEmployee(),
+                updateEmployee.getMailAddress(),
+                updateEmployee.getPassword().isBlank() ? beforeEmployee.getPassword() : updateEmployee.getPassword(),
+                updateEmployee.getAdminAuth() == null ? beforeEmployee.getAdminAuth() : updateEmployee.getAdminAuth(),
+                updateEmployee.getIdDepartment() == null ? beforeEmployee.getIdDepartment() : updateEmployee.getIdDepartment()
+        );
 
-	}
+    }
 
 }

src/main/java/com/example/rhizome/app/infra/entity/DepartmentEntity.java

@@ -1,20 +1,25 @@
+/*
+ * Department.java
+ *   作成	IT-College	2016
+ *------------------------------------------------------------
+ * Copyright(c) Rhizome Inc. All Rights Reserved.
+ */
 package com.example.rhizome.app.infra.entity;
 
-import java.util.List;
-
-import javax.persistence.Column;
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-import javax.persistence.Table;
 
 import com.example.rhizome.app.domain.model.Department;
-
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+import javax.persistence.*;
+import java.util.List;
+
+/**
+ * Department テーブルの Entity
+ *
+ * @author IT-College
+ */
 @Entity
 @Table(name = "department")
 @Data
@@ -22,26 +27,46 @@ import lombok.NoArgsConstructor;
 @AllArgsConstructor
 public class DepartmentEntity {
 
-	@Id
-	@GeneratedValue(strategy = GenerationType.IDENTITY)
-	@Column(name = "id_department", nullable = false)
-	private Integer idDepartment;
-	@Column(name = "nm_department", nullable = false)
-	private String nmDepartment;
+    /**
+     * 部署ID
+     */
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id_department", nullable = false)
+    private Integer idDepartment;
+    /**
+     * 部署名
+     */
+    @Column(name = "nm_department", nullable = false)
+    private String nmDepartment;
 
-	public static List<Department> createDepartmentList(List<DepartmentEntity> departmentEntityList) {
+    /**
+     * DepartmentEntity（DataAccess層依存）から Department（BusinessLogic層依存型）に変換します。
+     *
+     * @param departmentEntityList department Table のリスト
+     * @return List<Department> リスト
+     */
+    public static List<Department> createDepartmentList(List<DepartmentEntity> departmentEntityList) {
 
-		return departmentEntityList
-				.stream()
-				.map(departmentEntity -> new Department(
-						departmentEntity.getIdDepartment(),
-						departmentEntity.getNmDepartment()))
-				.toList();
-	}
+        // Stream API を利用するとこうなります。
+        return departmentEntityList
+                .stream()
+                .map(departmentEntity -> new Department(
+                        departmentEntity.getIdDepartment(),
+                        departmentEntity.getNmDepartment()
+                )).toList();
+    }
 
-	public static DepartmentEntity convertFrom(Department department) {
-		return new DepartmentEntity(
-				department.getIdDepartment(),
-				department.getNmDepartment());
-	}
+    /**
+     * Department（BusinessLogic層依存型） から DepartmentEntity（DataAccess層依存）に変換します。
+     *
+     * @param department department モデルの値
+     * @return DepartmentEntity に変換したインスタンス
+     */
+    public static DepartmentEntity convertFrom(Department department) {
+        return new DepartmentEntity(
+                department.getIdDepartment(),
+                department.getNmDepartment()
+        );
+    }
 }

src/main/java/com/example/rhizome/app/infra/entity/EmployeeDepartmentEntity.java

@@ -1,86 +1,118 @@
 package com.example.rhizome.app.infra.entity;
 
-import java.util.List;
-
-import javax.persistence.Column;
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-import javax.persistence.JoinColumn;
-import javax.persistence.ManyToOne;
-import javax.persistence.NamedEntityGraph;
-import javax.persistence.Table;
-
-import org.hibernate.annotations.Fetch;
-import org.hibernate.annotations.FetchMode;
-
 import com.example.rhizome.app.domain.model.Department;
 import com.example.rhizome.app.domain.model.Employee;
 import com.example.rhizome.app.domain.model.EmployeeInfo;
-
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
+import org.hibernate.annotations.Fetch;
+import org.hibernate.annotations.FetchMode;
 
+import javax.persistence.*;
+import java.util.List;
+
+/**
+ * Employee + Department の Join 情報を保持するEntity
+ *
+ * @author IT-College
+ */
 @Entity
 @Table(name = "employee")
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
-@NamedEntityGraph(name = "employee_with_department", includeAllAttributes = true)
+@NamedEntityGraph(
+        name = "employee_with_department",
+        includeAllAttributes = true
+)
 public class EmployeeDepartmentEntity {
 
-	@Id
-	@GeneratedValue(strategy = GenerationType.IDENTITY)
-	@Column(name = "id_employee", nullable = false)
-	private Integer idEmployee;
+    /**
+     * 社員ID
+     */
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id_employee", nullable = false)
+    private Integer idEmployee;
 
-	@Column(name = "nm_employee", nullable = false)
-	private String nmEmployee;
+    /**
+     * 社員名
+     */
+    @Column(name = "nm_employee", nullable = false)
+    private String nmEmployee;
 
-	@Column(name = "kn_employee", nullable = false)
-	private String knEmployee;
+    /**
+     * 社員名カナ
+     */
+    @Column(name = "kn_employee", nullable = false)
+    private String knEmployee;
 
-	@Column(name = "mail_address", nullable = false)
-	private String mailAddress;
+    /**
+     * メールアドレス
+     */
+    @Column(name = "mail_address", nullable = false)
+    private String mailAddress;
 
-	@Column(name = "password", nullable = false)
-	private String password;
+    /**
+     * パスワード
+     */
+    @Column(name = "password", nullable = false)
+    private String password;
 
-	@Column(name = "admin_auth", nullable = false)
-	private Integer adminAuth;
+    /**
+     * 管理者権限
+     */
+    @Column(name = "admin_auth", nullable = false)
+    private Integer adminAuth;
 
-	@ManyToOne
-	@JoinColumn(name = "id_department", referencedColumnName = "id_department", insertable = false, updatable = false)
-	@Fetch(FetchMode.JOIN)
-	private DepartmentEntity department;
+    @ManyToOne
+    @JoinColumn(name = "id_department", referencedColumnName = "id_department", insertable = false, updatable = false)
+    @Fetch(FetchMode.JOIN)
+    private DepartmentEntity department;
 
-	public static EmployeeInfo createEmployeeInfo(EmployeeDepartmentEntity employeeDepartmentEntity) {
+    /**
+     * EmployeeDepartmentEntity（DataAccess層依存） を EmployeeInfo（BusinessLogic層依存） に変換します。
+     *
+     * @param employeeDepartmentEntity 　EmployeeDepartmentEntity のインスタンス
+     * @return EmployeeInfo のインスタンス
+     */
+    public static EmployeeInfo createEmployeeInfo(EmployeeDepartmentEntity employeeDepartmentEntity) {
 
-		return new EmployeeInfo(
-				new Employee(
-						employeeDepartmentEntity.getIdEmployee(),
-						employeeDepartmentEntity.getNmEmployee(),
-						employeeDepartmentEntity.getKnEmployee(),
-						employeeDepartmentEntity.getMailAddress(),
-						employeeDepartmentEntity.getPassword(),
-						employeeDepartmentEntity.getAdminAuth(),
-						employeeDepartmentEntity.getDepartment() == null ? null
-								: employeeDepartmentEntity.getDepartment().getIdDepartment()),
-				new Department(
-						employeeDepartmentEntity.getDepartment() == null ? null
-								: employeeDepartmentEntity.getDepartment().getIdDepartment(),
-						employeeDepartmentEntity.getDepartment() == null ? null
-								: employeeDepartmentEntity.getDepartment().getNmDepartment()));
+        // コンストラクタを使って書くとSetterを使用するより簡略化出来ます。
+        // 混乱してしまう人は落ち着いて EmployeeInfo のフィールドを見に行って、
+        // どうしてこの書き方が出来るのかを理解できる様になりましょう。
+        return new EmployeeInfo(
+                new Employee(
+                        employeeDepartmentEntity.getIdEmployee(),
+                        employeeDepartmentEntity.getNmEmployee(),
+                        employeeDepartmentEntity.getKnEmployee(),
+                        employeeDepartmentEntity.getMailAddress(),
+                        employeeDepartmentEntity.getPassword(),
+                        employeeDepartmentEntity.getAdminAuth(),
+                        employeeDepartmentEntity.getDepartment() == null ? null : employeeDepartmentEntity.getDepartment().getIdDepartment()
+                ),
+                new Department(
+                        employeeDepartmentEntity.getDepartment() == null ? null : employeeDepartmentEntity.getDepartment().getIdDepartment(),
+                        employeeDepartmentEntity.getDepartment() == null ? null : employeeDepartmentEntity.getDepartment().getNmDepartment()
+                )
+        );
 
-	}
+    }
 
-	public static List<EmployeeInfo> createEmployeeInfoList(
-			List<EmployeeDepartmentEntity> employeeDepartmentEntityList) {
+    /**
+     * EmployeeDepartmentEntity（DataAccess層依存） を EmployeeInfo（BusinessLogic層依存） に変換します。
+     * （リスト版）
+     *
+     * @param employeeDepartmentEntityList EmployeeDepartmentEntity インスタンスのリスト
+     * @return EmployeeInfo インスタンスのリスト
+     */
+    public static List<EmployeeInfo> createEmployeeInfoList(List<EmployeeDepartmentEntity> employeeDepartmentEntityList) {
 
-		return employeeDepartmentEntityList.stream().map(EmployeeDepartmentEntity::createEmployeeInfo).toList();
+        // StreamAPI を使うとこうなります。
+        return employeeDepartmentEntityList.stream().map(EmployeeDepartmentEntity::createEmployeeInfo).toList();
+
+    }
 
-	}
 
 }

src/main/java/com/example/rhizome/app/infra/entity/EmployeeEntity.java

@@ -1,22 +1,27 @@
+/*
+ * Employee.java
+ *   作成	IT-College	2016
+ *------------------------------------------------------------
+ * Copyright(c) Rhizome Inc. All Rights Reserved.
+ */
 package com.example.rhizome.app.infra.entity;
 
-import java.util.List;
-
-import javax.persistence.Column;
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-import javax.persistence.Table;
 
 import com.example.rhizome.app.domain.model.Employee;
 import com.example.rhizome.app.domain.model.LoginUser;
 import com.example.rhizome.app.domain.model.SearchConditionEmployee;
-
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+import javax.persistence.*;
+import java.util.List;
+
+/**
+ * EmployeeテーブルのEntity
+ *
+ * @author IT-College
+ */
 @Entity
 @Table(name = "employee")
 @Data
@@ -24,77 +29,146 @@ import lombok.NoArgsConstructor;
 @AllArgsConstructor
 public class EmployeeEntity {
 
-	@Id
-	@GeneratedValue(strategy = GenerationType.IDENTITY)
-	@Column(name = "id_employee", nullable = false)
-	private Integer idEmployee;
+    /**
+     * 社員ID
+     */
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id_employee", nullable = false)
+    private Integer idEmployee;
 
-	@Column(name = "nm_employee", nullable = false)
-	private String nmEmployee;
+    /**
+     * 社員名
+     */
+    @Column(name = "nm_employee", nullable = false)
+    private String nmEmployee;
 
-	@Column(name = "kn_employee", nullable = false)
-	private String knEmployee;
+    /**
+     * 社員名カナ
+     */
+    @Column(name = "kn_employee", nullable = false)
+    private String knEmployee;
 
-	@Column(name = "mail_address", nullable = false)
-	private String mailAddress;
+    /**
+     * メールアドレス
+     */
+    @Column(name = "mail_address", nullable = false)
+    private String mailAddress;
 
-	@Column(name = "password", nullable = false)
-	private String password;
+    /**
+     * パスワード
+     */
+    @Column(name = "password", nullable = false)
+    private String password;
 
-	@Column(name = "admin_auth", nullable = false)
-	private Integer adminAuth;
+    /**
+     * 管理者権限
+     */
+    @Column(name = "admin_auth", nullable = false)
+    private Integer adminAuth;
 
-	@Column(name = "id_department", nullable = false)
-	private Integer idDepartment;
+    /**
+     * 部署ID
+     */
+    @Column(name = "id_department", nullable = false)
+    private Integer idDepartment;
 
-	public static EmployeeEntity convertFrom(Employee employee) {
-		return new EmployeeEntity(
-				employee.getIdEmployee(),
-				employee.getNmEmployee(),
-				employee.getKnEmployee(),
-				employee.getMailAddress(),
-				employee.getPassword(),
-				employee.getAdminAuth(),
-				employee.getIdDepartment());
-	}
 
-	public static EmployeeEntity convertFrom(SearchConditionEmployee searchConditionEmployee) {
-		EmployeeEntity employeeEntity = new EmployeeEntity();
+    /**
+     * Employee（BusinessLogic 依存）を EmployeeEntity（DataAccess層依存）に変換します。
+     *
+     * @param employee Employee Table の中身
+     * @return EmployeeEntity のインスタンス（１レコード分）
+     */
+    public static EmployeeEntity convertFrom(Employee employee) {
+        // 値を既に持ったインスタンスの生成に、コンストラクタを使用するとこうなります。
+        return new EmployeeEntity(
+                employee.getIdEmployee(),
+                employee.getNmEmployee(),
+                employee.getKnEmployee(),
+                employee.getMailAddress(),
+                employee.getPassword(),
+                employee.getAdminAuth(),
+                employee.getIdDepartment()
+        );
+    }
 
-		employeeEntity.setIdEmployee(searchConditionEmployee.getIdEmployee());
-		employeeEntity.setNmEmployee(searchConditionEmployee.getNmEmployee());
-		employeeEntity.setKnEmployee(searchConditionEmployee.getKnEmployee());
-		employeeEntity.setMailAddress(searchConditionEmployee.getMailAddress());
-		employeeEntity.setIdDepartment(searchConditionEmployee.getIdDepartment());
+    /**
+     * SearchConditionEmployee（BusinessLogic 依存）を EmployeeEntity（DataAccess層依存）に変換します。
+     * (コンストラクタを使用せず、Setterを利用したパターン）
+     *
+     * @param searchConditionEmployee 検索条件
+     * @return EmployeeEntity のインスタンス（１レコード分）
+     */
+    public static EmployeeEntity convertFrom(SearchConditionEmployee searchConditionEmployee) {
+        EmployeeEntity employeeEntity = new EmployeeEntity();
 
-		return employeeEntity;
+        employeeEntity.setIdEmployee(searchConditionEmployee.getIdEmployee());
+        employeeEntity.setNmEmployee(searchConditionEmployee.getNmEmployee());
+        employeeEntity.setKnEmployee(searchConditionEmployee.getKnEmployee());
+        employeeEntity.setMailAddress(searchConditionEmployee.getMailAddress());
+        employeeEntity.setIdDepartment(searchConditionEmployee.getIdDepartment());
 
-	}
 
-	public static Employee createEmployee(EmployeeEntity employeeEntity) {
-		return new Employee(
-				employeeEntity.getIdEmployee(),
-				employeeEntity.getNmEmployee(),
-				employeeEntity.getKnEmployee(),
-				employeeEntity.getMailAddress(),
-				employeeEntity.getPassword(),
-				employeeEntity.getAdminAuth(),
-				employeeEntity.getIdDepartment());
-	}
+        return employeeEntity;
 
-	public static List<Employee> createEmployeeList(List<EmployeeEntity> employeeEntityList) {
-		return employeeEntityList.stream().map(EmployeeEntity::createEmployee).toList();
-	}
+    }
 
-	public LoginUser createLoginUser() {
-		return new LoginUser(
-				getIdEmployee(),
-				getNmEmployee(),
-				getKnEmployee(),
-				getMailAddress(),
-				getPassword(),
-				getAdminAuth(),
-				getIdDepartment());
-	}
+    /**
+     * EmployeeEntity（DataAccess層依存）から Employee (BusinessLogic層依存型）に変換します。
+     *
+     * @param employeeEntity Employee Table のインスタンス
+     * @return employee インスタンス
+     */
+    public static Employee createEmployee(EmployeeEntity employeeEntity) {
+        // 値を既に持ったインスタンスの生成に、コンストラクタを使用するとこうなります。
+        return new Employee(
+                employeeEntity.getIdEmployee(),
+                employeeEntity.getNmEmployee(),
+                employeeEntity.getKnEmployee(),
+                employeeEntity.getMailAddress(),
+                employeeEntity.getPassword(),
+                employeeEntity.getAdminAuth(),
+                employeeEntity.getIdDepartment()
+        );
+    }
+
+    /**
+     * EmployeeEntity（DataAccess層依存） から Employee (BusinessLogic層依存型）に変換します。（リスト版）
+     *
+     * @param employeeEntityList EmployeeEntity インスタンスのリスト
+     * @return Employee インスタンスのリスト
+     */
+    public static List<Employee> createEmployeeList(List<EmployeeEntity> employeeEntityList) {
+        /* 従来の書き方
+        List<Employee> employeeList = new ArrayList<>();
+        for(EmployeeEntity employeeEntity:employeeEntityList){
+            Employee employee = EmployeeEntity.createEmployee(employeeEntity);
+            employeeList.add(employee);
+        }
+        return employeeList;
+        */
+
+        // Stream APIを使用すると1行で書けます。
+        return employeeEntityList.stream().map(EmployeeEntity::createEmployee).toList();
+    }
+
+    /**
+     * EmployeeEntity（DataAccess層依存） から LoginUser (BusinessLogic層依存型）情報を作成します。
+     *
+     * @return loginUser （ログイン者の情報） インスタンス
+     */
+    public LoginUser createLoginUser() {
+        // 値を既に持ったインスタンスの生成に、コンストラクタを使用するとこうなります。
+        return new LoginUser(
+                getIdEmployee(),
+                getNmEmployee(),
+                getKnEmployee(),
+                getMailAddress(),
+                getPassword(),
+                getAdminAuth(),
+                getIdDepartment()
+        );
+    }
 
 }

src/main/java/com/example/rhizome/app/infra/repository/DepartmentRepository.java

@@ -1,31 +1,50 @@
 package com.example.rhizome.app.infra.repository;
 
+import com.example.rhizome.app.infra.entity.DepartmentEntity;
 import org.springframework.data.jpa.domain.Specification;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
 import org.springframework.stereotype.Repository;
 
-import com.example.rhizome.app.infra.entity.DepartmentEntity;
 
+/**
+ * Specification:
+ * 関数型インターフェースです。
+ * JPAの一部として提供されていて、エンティティの情報を元に動的にクエリを生成し、DBからデータを取得します。
+ * 使い方：
+ * toPredicate をOverrideして使います。
+ * パラメータ：
+ * Root<T>：ルートエンティティを指します。<T>に指定したエンティティ（今回はDepartmentEntity）を用いてメンバにアクセスします。
+ * CriteriaQuery<\?>：サブクエリを作成する際に使用します。※今回は使用しません
+ * CriteriaBuilder:条件式（Where句以降の条件）の部分のクエリを作るためのビルダーです。
+ * 戻り値はクエリを格納しているPredicateオブジェクトとなります。
+ */
 @Repository
-public interface DepartmentRepository
-		extends JpaRepository<DepartmentEntity, Integer>, JpaSpecificationExecutor<DepartmentEntity> {
+public interface DepartmentRepository extends JpaRepository<DepartmentEntity, Integer>, JpaSpecificationExecutor<DepartmentEntity> {
 
-	static Specification<DepartmentEntity> idDepartmentEqual(Integer idDepartment) {
-		return idDepartment == null ? null
-				: (Specification<DepartmentEntity>) (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder
-						.equal(root.get("idDepartment"), idDepartment);
-	}
 
-	static Specification<DepartmentEntity> nmDepartmentEqual(String nmDepartment) {
-		return (nmDepartment == null || nmDepartment.isEmpty()) ? null
-				: (Specification<DepartmentEntity>) (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder
-						.like(root.get("nmDepartment"), nmDepartment);
-	}
+    static Specification<DepartmentEntity> idDepartmentEqual(Integer idDepartment) {
+        return idDepartment == null ?
+                null :
+                // 戻り値の型 Specification<DepartmentEntity> にキャスト
+                (Specification<DepartmentEntity>)
+                        // ラムダ式で記載しているが書いてあることは criteriaBuilder を使って Where句の後の "'idDepartment' = idDepartment(変数)"
+                        // を作成している
+                        (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder.equal(root.get("idDepartment"), idDepartment);
+    }
 
-	static Specification<DepartmentEntity> nmDepartmentLike(String nmDepartment) {
-		return (nmDepartment == null || nmDepartment.isEmpty()) ? null
-				: (Specification<DepartmentEntity>) (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder
-						.like(root.get("nmDepartment"), "%" + nmDepartment + "%");
-	}
+    static Specification<DepartmentEntity> nmDepartmentEqual(String nmDepartment) {
+        return (nmDepartment == null || nmDepartment.isEmpty()) ?
+                null :
+                (Specification<DepartmentEntity>)
+                        (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder.like(root.get("nmDepartment"), nmDepartment);
+    }
+
+
+    static Specification<DepartmentEntity> nmDepartmentLike(String nmDepartment) {
+        return (nmDepartment == null || nmDepartment.isEmpty()) ?
+                null :
+                (Specification<DepartmentEntity>)
+                        (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder.like(root.get("nmDepartment"), "%" + nmDepartment + "%");
+    }
 }

src/main/java/com/example/rhizome/app/infra/repository/EmployeeInfoRepository.java

@@ -1,42 +1,61 @@
 package com.example.rhizome.app.infra.repository;
 
+import com.example.rhizome.app.infra.entity.EmployeeDepartmentEntity;
 import org.springframework.data.jpa.domain.Specification;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
 import org.springframework.stereotype.Repository;
 
-import com.example.rhizome.app.infra.entity.EmployeeDepartmentEntity;
-
+/**
+ * ワンポイント情報（ここで登場する関数型インターフェース Specification について解説します）
+ * Specification:
+ * 関数型インターフェースです。
+ * JPAの一部として提供されていて、エンティティの情報を元に動的にクエリを生成し、DBからデータを取得します。
+ * 使い方：
+ * toPredicate をOverrideして使います。
+ * パラメータ：
+ * Root<T>：ルートエンティティを指します。<T>に指定したエンティティ（今回はDepartmentEntity）を用いてメンバにアクセスします。
+ * CriteriaQuery<\?>：サブクエリを作成する際に使用します。※今回は使用しません
+ * CriteriaBuilder:条件式（Where句以降の条件）の部分のクエリを作るためのビルダーです。
+ * 戻り値はクエリを格納しているPredicateオブジェクトとなります。
+ */
 @Repository
-public interface EmployeeInfoRepository
-		extends JpaRepository<EmployeeDepartmentEntity, Integer>, JpaSpecificationExecutor<EmployeeDepartmentEntity> {
+public interface EmployeeInfoRepository extends JpaRepository<EmployeeDepartmentEntity, Integer>, JpaSpecificationExecutor<EmployeeDepartmentEntity> {
 
-	static Specification<EmployeeDepartmentEntity> idEmployeeEqual(Integer idEmployee) {
-		return idEmployee == null ? null
-				: (Specification<EmployeeDepartmentEntity>) (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder
-						.equal(root.get("idEmployee"), idEmployee);
-	}
+    static Specification<EmployeeDepartmentEntity> idEmployeeEqual(Integer idEmployee) {
+        return idEmployee == null ?
+                null :
+                // 戻り値の型 Specification<EmployeeDepartmentEntity> にキャスト
+                (Specification<EmployeeDepartmentEntity>)
+                        // ラムダ式で記載しているが書いてあることは criteriaBuilder を使って Where句の後の "'idEmployee' = idEmployee(変数)"
+                        // を作成している
+                        (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder.equal(root.get("idEmployee"), idEmployee);
+    }
 
-	static Specification<EmployeeDepartmentEntity> nmEmployeeEqual(String nmEmployee) {
-		return (nmEmployee == null || nmEmployee.isEmpty()) ? null
-				: (Specification<EmployeeDepartmentEntity>) (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder
-						.like(root.get("nmEmployee"), "%" + nmEmployee + "%");
-	}
+    static Specification<EmployeeDepartmentEntity> nmEmployeeEqual(String nmEmployee) {
+        return (nmEmployee == null || nmEmployee.isEmpty()) ?
+                null :
+                (Specification<EmployeeDepartmentEntity>)
+                        (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder.like(root.get("nmEmployee"), "%" + nmEmployee + "%");
+    }
 
-	static Specification<EmployeeDepartmentEntity> knEmployeeEqual(String knEmployee) {
-		return (knEmployee == null || knEmployee.isEmpty()) ? null
-				: (Specification<EmployeeDepartmentEntity>) (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder
-						.like(root.get("knEmployee"), "%" + knEmployee + "%");
-	}
+    static Specification<EmployeeDepartmentEntity> knEmployeeEqual(String knEmployee) {
+        return (knEmployee == null || knEmployee.isEmpty()) ?
+                null :
+                (Specification<EmployeeDepartmentEntity>)
+                        (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder.like(root.get("knEmployee"), "%" + knEmployee + "%");
+    }
 
-	static Specification<EmployeeDepartmentEntity> mailAddressEqual(String mailAddress) {
-		return (mailAddress == null || mailAddress.isEmpty()) ? null
-				: (Specification<EmployeeDepartmentEntity>) (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder
-						.like(root.get("mailAddress"), "%" + mailAddress + "%");
-	}
+    static Specification<EmployeeDepartmentEntity> mailAddressEqual(String mailAddress) {
+        return (mailAddress == null || mailAddress.isEmpty()) ?
+                null :
+                (Specification<EmployeeDepartmentEntity>)
+                        (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder.like(root.get("mailAddress"), "%" + mailAddress + "%");
+    }
 
-	static Specification<EmployeeDepartmentEntity> idDepartmentEqual(Integer idDepartment) {
-		return (root, query, criteriaBuilder) -> idDepartment == null ? null
-				: criteriaBuilder.equal(root.join("department").get("idDepartment"), idDepartment);
-	}
+    static Specification<EmployeeDepartmentEntity> idDepartmentEqual(Integer idDepartment) {
+        return (root, query, criteriaBuilder) ->
+                idDepartment == null ? null :
+                        criteriaBuilder.equal(root.join("department").get("idDepartment"), idDepartment);
+    }
 }

src/main/java/com/example/rhizome/app/infra/repository/EmployeeRepository.java

@@ -1,20 +1,28 @@
 package com.example.rhizome.app.infra.repository;
 
+import com.example.rhizome.app.infra.entity.EmployeeEntity;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
 import java.util.List;
 import java.util.Optional;
 
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.stereotype.Repository;
-
-import com.example.rhizome.app.infra.entity.EmployeeEntity;
-
 @Repository
 public interface EmployeeRepository extends JpaRepository<EmployeeEntity, Integer> {
-	Optional<EmployeeEntity> findByMailAddressAndPassword(String mailAddress, String password);
+    Optional<EmployeeEntity> findByMailAddressAndPassword(String mailAddress, String password);
 
-	Optional<EmployeeEntity> findByMailAddress(String mail);
+    /**
+     * メールアドレスで検索
+     **/
+    Optional<EmployeeEntity> findByMailAddress(String mail);
 
-	Optional<EmployeeEntity> findByIdEmployee(Integer idEmployee);
+    /**
+     * IDで検索
+     **/
+    Optional<EmployeeEntity> findByIdEmployee(Integer idEmployee);
 
-	List<EmployeeEntity> findByIdDepartment(Integer idDepartment);
+    /**
+     * IDで検索
+     **/
+    List<EmployeeEntity> findByIdDepartment(Integer idDepartment);
 }

src/main/java/com/example/rhizome/app/presentation/controller/DeleteEmployeeController.java

@@ -1,19 +1,5 @@
 package com.example.rhizome.app.presentation.controller;
 
-import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.*;
-
-import java.util.Objects;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.http.HttpSession;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
-import org.springframework.web.bind.annotation.RequestParam;
 
 import com.example.rhizome.aop.aspect.PermissionCheck;
 import com.example.rhizome.aop.aspect.SessionCheck;
@@ -26,66 +12,110 @@ import com.example.rhizome.app.presentation.controller.pageproperty.TransitionTa
 import com.example.rhizome.app.presentation.form.DepartmentForm;
 import com.example.rhizome.app.presentation.form.LoginUserForm;
 import com.example.rhizome.app.presentation.form.MessageForm;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
 
+import javax.servlet.http.HttpSession;
+import java.util.Objects;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.DELETE_EMPLOYEE;
+
+/**
+ * 削除処理のコントロータ
+ */
 @Controller
 public class DeleteEmployeeController {
 
-	private final static Logger LOGGER = Logger.getLogger(DeleteEmployeeController.class.getName());
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(DeleteEmployeeController.class.getName());
 
-	private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
 
-	HttpSession httpSession;
-	DeleteEmployee deleteEmployee;
-	SearchDepartment searchDepartment;
+    HttpSession httpSession;
+    DeleteEmployee deleteEmployee;
+    SearchDepartment searchDepartment;
 
-	@Autowired
-	public DeleteEmployeeController(DeleteEmployee deleteEmployee, SearchDepartment searchDepartment,
-			HttpSession httpSession) {
-		this.httpSession = httpSession;
-		this.deleteEmployee = deleteEmployee;
-		this.searchDepartment = searchDepartment;
-	}
+    @Autowired
+    public DeleteEmployeeController(DeleteEmployee deleteEmployee, SearchDepartment searchDepartment, HttpSession httpSession) {
+        this.httpSession = httpSession;
+        this.deleteEmployee = deleteEmployee;
+        this.searchDepartment = searchDepartment;
+    }
 
-	@PermissionCheck
-	@SessionCheck
-	@RequestMapping(value = DELETE_EMPLOYEE, method = RequestMethod.POST)
-	public String deleteEmployee(@RequestParam("idEmployee") Integer idEmployee, Model model) {
+    /**
+     * 削除処理のコントローラ
+     *
+     * @param idEmployee 削除対象のemployeeId
+     * @param model      ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = DELETE_EMPLOYEE, method = RequestMethod.POST)
+    public String deleteEmployee(@RequestParam("idEmployee") Integer idEmployee, Model model) {
 
-		try {
-			model.addAttribute(
-					PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
-					DepartmentForm.convertFrom(searchDepartment.selectAll()));
+        try {
+            // 部署一覧を取得し、画面に返す用のクラスに詰め替える
+            // 作成した部署一覧をセット
+            model.addAttribute(
+                    PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
+                    DepartmentForm.convertFrom(searchDepartment.selectAll())
+            );
 
-			deleteExec(
-					model,
-					idEmployee,
-					LoginUserForm.convertTo((LoginUserForm) httpSession.getAttribute(SessionKeyword.LOGIN_USER)));
+            // 削除処理実施
+            deleteExec(
+                    model,
+                    idEmployee,
+                    LoginUserForm.convertTo((LoginUserForm) httpSession.getAttribute(SessionKeyword.LOGIN_USER)));
 
-			return "forward:" + TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_INFO_FORM_EMPTY;
+            // 検索画面に遷移
+            return "forward:" + TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_INFO_FORM_EMPTY;
 
-		} catch (Exception e) {
-			httpSession.invalidate();
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
 
-			e.printStackTrace();
-			LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
-			return TransitionTargetPageNameKeyword.ERROR_HTML;
-		}
-	}
+            e.printStackTrace();
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
+    }
 
-	private void deleteExec(Model model, Integer idEmployee, LoginUser loginUser) {
+    /**
+     * 削除処理実施
+     *
+     * @param model      ビューにデータを渡すためのコンテナ
+     * @param idEmployee 削除対象のemployeeId
+     * @param loginUser  ログインユーザー情報
+     */
+    private void deleteExec(Model model, Integer idEmployee, LoginUser loginUser) {
 
-		final String DELETE_TARGET_ID_CAN_NOT_DELETE = "ログイン者自身は削除出来ません。";
-		final String DELETE_COMPLETE = "削除しました。";
+        final String DELETE_TARGET_ID_CAN_NOT_DELETE = "ログイン者自身は削除出来ません。";
+        final String DELETE_COMPLETE = "削除しました。";
 
-		if (Objects.equals(loginUser.getIdEmployee(), idEmployee)) {
-			model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR,
-					new MessageForm(DELETE_TARGET_ID_CAN_NOT_DELETE));
-			return;
-		}
+        // ログインしている人が、削除対象かチェック
+        if (Objects.equals(loginUser.getIdEmployee(), idEmployee)) {
+            // 削除対象だった場合
+            // エラーメッセージをセット
+            model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(DELETE_TARGET_ID_CAN_NOT_DELETE));
+            // 検索画面に遷移
+            return;
+        }
 
-		deleteEmployee.deleteEmployee(idEmployee);
+        // 削除を実施
+        deleteEmployee.deleteEmployee(idEmployee);
 
-		model.addAttribute(PageReturnAttributeKeyword.MESSAGE_INFO, new MessageForm(DELETE_COMPLETE));
+        // 削除完了したメッセージをセット
+        model.addAttribute(PageReturnAttributeKeyword.MESSAGE_INFO, new MessageForm(DELETE_COMPLETE));
 
-	}
+    }
 }

src/main/java/com/example/rhizome/app/presentation/controller/IndexController.java

@@ -1,42 +1,50 @@
 package com.example.rhizome.app.presentation.controller;
 
-import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.*;
-
-import javax.servlet.http.HttpSession;
-
+import com.example.rhizome.app.domain.service.impl.LoginImpl;
+import com.example.rhizome.app.presentation.controller.pageproperty.PageReturnAttributeKeyword;
+import com.example.rhizome.app.presentation.form.LoginUserForm;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.RequestMapping;
 
-import com.example.rhizome.app.domain.service.impl.LoginImpl;
-import com.example.rhizome.app.presentation.controller.pageproperty.PageReturnAttributeKeyword;
-import com.example.rhizome.app.presentation.form.LoginUserForm;
+import javax.servlet.http.HttpSession;
+
+import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.*;
 
 @Controller
 public class IndexController {
 
-	HttpSession httpSession;
+    HttpSession httpSession;
 
-	@Autowired
-	public IndexController(HttpSession httpSession, LoginImpl loginImpl) {
-		this.httpSession = httpSession;
-	}
+    @Autowired
+    public IndexController(HttpSession httpSession, LoginImpl loginImpl) {
+        this.httpSession = httpSession;
+    }
 
-	@ModelAttribute
-	public LoginUserForm loginUserForm() {
-		return new LoginUserForm();
-	}
+    @ModelAttribute
+    public LoginUserForm loginUserForm() {
+        return new LoginUserForm();
+    }
 
-	@RequestMapping(value = { INDEX_BLANK, INDEX_SLASH, INDEX_LOGIN })
-	public String index(Model model) {
-		if (httpSession != null) {
-			httpSession.invalidate();
-		}
+    /**
+     * ログイン画面表示処理
+     *
+     * @param model ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @RequestMapping(value = {INDEX_BLANK, INDEX_SLASH, INDEX_LOGIN})
+    public String index(Model model) {
+        // セッション情報を破棄
+        if (httpSession != null) {
+            httpSession.invalidate();
+        }
 
-		model.addAttribute(PageReturnAttributeKeyword.LOGIN_INFO_FORM, loginUserForm());
+        // 空のFormをSessionに用意
+        model.addAttribute(PageReturnAttributeKeyword.LOGIN_INFO_FORM, loginUserForm());
 
-		return LOGIN_HTML;
-	}
+        // ログイン画面に遷移
+        return LOGIN_HTML;
+    }
 }

src/main/java/com/example/rhizome/app/presentation/controller/InsertDepartmentController.java

@@ -0,0 +1,86 @@
+package com.example.rhizome.app.presentation.controller;
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.servlet.http.HttpSession;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+
+import com.example.rhizome.aop.aspect.PermissionCheck;
+import com.example.rhizome.aop.aspect.SessionCheck;
+import com.example.rhizome.app.domain.service.RegisterEmployee;
+import com.example.rhizome.app.domain.service.SearchDepartment;
+import com.example.rhizome.app.domain.service.impl.RegisterEmployeeImpl;
+import com.example.rhizome.app.domain.service.impl.SearchDepartmentImpl;
+import com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword;
+import com.example.rhizome.app.presentation.form.InsertEmployeeForm;
+
+/**
+ * 新規登録用のコントローラ
+ */
+@Controller
+public class InsertDepartmentController {
+
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(InsertDepartmentController.class.getName());
+
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+
+    HttpSession httpSession;
+    RegisterEmployee registerEmployee;
+    SearchDepartment searchDepartment;
+
+    @Autowired
+    public InsertDepartmentController(HttpSession httpSession, RegisterEmployeeImpl registerEmployee, SearchDepartmentImpl searchDepartment) {
+        this.httpSession = httpSession;
+        this.registerEmployee = registerEmployee;
+        this.searchDepartment = searchDepartment;
+    }
+
+    @ModelAttribute
+    public InsertEmployeeForm insertEmployeeForm() {
+        return new InsertEmployeeForm();
+    }
+
+    /**
+     * 新規登録画面表示処理
+     *
+     * @param insertEmployeeForm 登録情報
+     * @param model              ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = TransitionTargetPageNameKeyword.INSERT_DEPARTMENT, method = RequestMethod.POST)
+    public String insertEmployee(InsertEmployeeForm insertEmployeeForm, Model model) {
+
+        try {
+
+            // 登録結果画面に遷移
+            return TransitionTargetPageNameKeyword.INSERT_DEVELOPMENT_INPUT_HTML;
+
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
+
+            e.printStackTrace();
+
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
+    }
+
+
+}
+
+
+

src/main/java/com/example/rhizome/app/presentation/controller/InsertEmployeeConfirmController.java

@@ -1,20 +1,5 @@
 package com.example.rhizome.app.presentation.controller;
 
-import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.*;
-
-import java.util.List;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.http.HttpSession;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
-
 import com.example.rhizome.aop.aspect.PermissionCheck;
 import com.example.rhizome.aop.aspect.SessionCheck;
 import com.example.rhizome.app.domain.model.Employee;
@@ -27,73 +12,122 @@ import com.example.rhizome.app.presentation.controller.pageproperty.TransitionTa
 import com.example.rhizome.app.presentation.form.DepartmentForm;
 import com.example.rhizome.app.presentation.form.InsertEmployeeForm;
 import com.example.rhizome.app.presentation.form.MessageForm;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
 
+import javax.servlet.http.HttpSession;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_CONFIRM;
+
+/**
+ * 新規登録者情報チェック用のコントローラ
+ */
 @Controller
 public class InsertEmployeeConfirmController {
 
-	private final static Logger LOGGER = Logger.getLogger(InsertEmployeeConfirmController.class.getName());
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(InsertEmployeeConfirmController.class.getName());
 
-	private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
 
-	HttpSession httpSession;
-	SearchDepartment searchDepartment;
-	SearchEmployee searchEmployee;
+    HttpSession httpSession;
+    SearchDepartment searchDepartment;
+    SearchEmployee searchEmployee;
 
-	@Autowired
-	public InsertEmployeeConfirmController(
-			HttpSession httpSession,
-			SearchDepartmentImpl searchDepartment,
-			SearchEmployeeImpl searchEmployee) {
-		this.httpSession = httpSession;
-		this.searchDepartment = searchDepartment;
-		this.searchEmployee = searchEmployee;
-	}
+    @Autowired
+    public InsertEmployeeConfirmController(
+            HttpSession httpSession,
+            SearchDepartmentImpl searchDepartment,
+            SearchEmployeeImpl searchEmployee
+    ) {
+        this.httpSession = httpSession;
+        this.searchDepartment = searchDepartment;
+        this.searchEmployee = searchEmployee;
+    }
 
-	@ModelAttribute
-	public InsertEmployeeForm insertEmployeeForm() {
-		return new InsertEmployeeForm();
-	}
+    @ModelAttribute
+    public InsertEmployeeForm insertEmployeeForm() {
+        return new InsertEmployeeForm();
+    }
 
-	@PermissionCheck
-	@SessionCheck
-	@RequestMapping(value = INSERT_EMPLOYEE_CONFIRM, method = RequestMethod.POST)
-	public String insertEmployeeConfirm(InsertEmployeeForm insertEmployeeForm, Model model) {
+    /**
+     * 登録情報のチェックを行う
+     *
+     * @param insertEmployeeForm 登録情報
+     * @param model              ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = INSERT_EMPLOYEE_CONFIRM, method = RequestMethod.POST)
+    public String insertEmployeeConfirm(InsertEmployeeForm insertEmployeeForm, Model model) {
 
-		try {
-			model.addAttribute(
-					PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
-					DepartmentForm.convertFrom(
-							searchDepartment.selectAll()));
+        try {
+            // 部署一覧を取得し、画面に返す用のクラスに詰め替える
+            // 作成した部署一覧をセット
+            model.addAttribute(
+                    PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
+                    DepartmentForm.convertFrom(
+                            searchDepartment.selectAll()
+                    ));
 
-			List<String> error = insertEmployeeForm.validateParameter();
+            // 登録用パラメータチェック
+            List<String> error = insertEmployeeForm.validateParameter();
 
-			if (!error.isEmpty()) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR,
-						new MessageForm(String.join(", ", error) + "が不正です。"));
-				model.addAttribute(PageReturnAttributeKeyword.INSERT_EMPLOYEE_FORM, insertEmployeeForm);
-				return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_INPUT_HTML;
-			}
+            // 入力内容に誤りがあるか
+            if (!error.isEmpty()) {
+                // 誤りがあった場合
+                // 誤りがあった箇所のエラーメッセージを表示
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(String.join(", ", error) + "が不正です。"));
+                // 画面に返す為の登録情報をセット
+                model.addAttribute(PageReturnAttributeKeyword.INSERT_EMPLOYEE_FORM, insertEmployeeForm);
+                // 登録画面に遷移
+                return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_INPUT_HTML;
+            }
 
-			final String DUPLICATION = "既に登録済みのメールアドレスです。";
+            final String DUPLICATION = "既に登録済みのメールアドレスです。";
 
-			List<Employee> employeeList = searchEmployee.searchEmployee(insertEmployeeForm.getMailAddress());
+            // 登録対象のメールアドレスを元に検索
+            List<Employee> employeeList = searchEmployee.searchEmployee(insertEmployeeForm.getMailAddress());
 
-			if (!employeeList.isEmpty()) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(DUPLICATION));
-				model.addAttribute(PageReturnAttributeKeyword.INSERT_EMPLOYEE_FORM, insertEmployeeForm);
-				return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_INPUT_HTML;
-			}
+            // 検索結果があるか
+            if (!employeeList.isEmpty()) {
+                // 検索した結果0件ではない場合
+                // 重複を許さないため、エラー処理
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(DUPLICATION));
+                // 画面に返す為の登録情報をセット
+                model.addAttribute(PageReturnAttributeKeyword.INSERT_EMPLOYEE_FORM, insertEmployeeForm);
+                // 登録画面に遷移
+                return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_INPUT_HTML;
+            }
 
-			model.addAttribute(PageReturnAttributeKeyword.INSERT_EMPLOYEE_FORM, insertEmployeeForm);
-			return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_CONFIRM_HTML;
+            // 登録確認ページに遷移
+            model.addAttribute(PageReturnAttributeKeyword.INSERT_EMPLOYEE_FORM, insertEmployeeForm);
+            // 登録確認画面に遷移
+            return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_CONFIRM_HTML;
 
-		} catch (Exception e) {
-			httpSession.invalidate();
 
-			e.printStackTrace();
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
 
-			LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
-			return TransitionTargetPageNameKeyword.ERROR_HTML;
-		}
-	}
+            e.printStackTrace();
+
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
+    }
 }
+
+
+

src/main/java/com/example/rhizome/app/presentation/controller/InsertEmployeeController.java

@@ -1,21 +1,5 @@
 package com.example.rhizome.app.presentation.controller;
 
-import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.*;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.http.HttpSession;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
-
 import com.example.rhizome.aop.aspect.PermissionCheck;
 import com.example.rhizome.aop.aspect.SessionCheck;
 import com.example.rhizome.app.domain.service.RegisterEmployee;
@@ -27,120 +11,188 @@ import com.example.rhizome.app.presentation.controller.pageproperty.TransitionTa
 import com.example.rhizome.app.presentation.form.DepartmentForm;
 import com.example.rhizome.app.presentation.form.InsertEmployeeForm;
 import com.example.rhizome.app.presentation.form.MessageForm;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
 
+import javax.servlet.http.HttpSession;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.INSERT_EMPLOYEE;
+
+/**
+ * 新規登録用のコントローラ
+ */
 @Controller
 public class InsertEmployeeController {
 
-	private final static Logger LOGGER = Logger.getLogger(InsertEmployeeController.class.getName());
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(InsertEmployeeController.class.getName());
 
-	private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
 
-	HttpSession httpSession;
-	RegisterEmployee registerEmployee;
-	SearchDepartment searchDepartment;
+    HttpSession httpSession;
+    RegisterEmployee registerEmployee;
+    SearchDepartment searchDepartment;
 
-	@Autowired
-	public InsertEmployeeController(HttpSession httpSession, RegisterEmployeeImpl registerEmployee,
-			SearchDepartmentImpl searchDepartment) {
-		this.httpSession = httpSession;
-		this.registerEmployee = registerEmployee;
-		this.searchDepartment = searchDepartment;
-	}
+    @Autowired
+    public InsertEmployeeController(HttpSession httpSession, RegisterEmployeeImpl registerEmployee, SearchDepartmentImpl searchDepartment) {
+        this.httpSession = httpSession;
+        this.registerEmployee = registerEmployee;
+        this.searchDepartment = searchDepartment;
+    }
 
-	@ModelAttribute
-	public InsertEmployeeForm insertEmployeeForm() {
-		return new InsertEmployeeForm();
-	}
+    @ModelAttribute
+    public InsertEmployeeForm insertEmployeeForm() {
+        return new InsertEmployeeForm();
+    }
 
-	@PermissionCheck
-	@SessionCheck
-	@RequestMapping(value = INSERT_EMPLOYEE, method = RequestMethod.POST)
-	public String insertEmployee(InsertEmployeeForm insertEmployeeForm, Model model) {
+    /**
+     * 新規登録画面表示処理
+     *
+     * @param insertEmployeeForm 登録情報
+     * @param model              ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = INSERT_EMPLOYEE, method = RequestMethod.POST)
+    public String insertEmployee(InsertEmployeeForm insertEmployeeForm, Model model) {
 
-		try {
-			model.addAttribute(
-					PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
-					DepartmentForm.convertFrom(
-							searchDepartment.selectAll()));
+        try {
+            // 部署一覧を取得し、画面に返す用のクラスに詰め替える
+            // 作成した部署一覧をセット
+            model.addAttribute(
+                    PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
+                    DepartmentForm.convertFrom(
+                            searchDepartment.selectAll()
+                    ));
 
-			List<String> error = validateParameter(
-					insertEmployeeForm.getNmEmployee(),
-					insertEmployeeForm.getKnEmployee(),
-					insertEmployeeForm.getMailAddress(),
-					insertEmployeeForm.getPassword(),
-					insertEmployeeForm.getAdminAuth(),
-					insertEmployeeForm.getIdDepartment());
+            // Confirm画面から渡ってきた値をチェック
+            List<String> error = validateParameter(
+                    insertEmployeeForm.getNmEmployee(),
+                    insertEmployeeForm.getKnEmployee(),
+                    insertEmployeeForm.getMailAddress(),
+                    insertEmployeeForm.getPassword(),
+                    insertEmployeeForm.getAdminAuth(),
+                    insertEmployeeForm.getIdDepartment()
+            );
 
-			if (!error.isEmpty()) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR,
-						new MessageForm(String.join(", ", error) + "が不正です。"));
-				return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_INPUT_HTML;
-			}
+            // エラーが1件以上有る場合
+            if (!error.isEmpty()) {
+                // エラー内容を画面に表示
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(String.join(", ", error) + "が不正です。"));
+                // 登録画面に遷移
+                return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_INPUT_HTML;
+            }
 
-			registerEmployee.registerEmployee(InsertEmployeeForm.convertTo(insertEmployeeForm));
-			return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_RESULT_HTML;
+            // 登録処理
+            registerEmployee.registerEmployee(InsertEmployeeForm.convertTo(insertEmployeeForm));
+            // 登録結果画面に遷移
+            return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_RESULT_HTML;
 
-		} catch (Exception e) {
-			httpSession.invalidate();
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
 
-			e.printStackTrace();
+            e.printStackTrace();
 
-			LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
-			return TransitionTargetPageNameKeyword.ERROR_HTML;
-		}
-	}
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
+    }
 
-	private List<String> validateParameter(
-			String employeeName,
-			String employeeKana,
-			String mailAddress,
-			String password,
-			Integer management,
-			Integer departmentId) {
+    /**
+     * @param employeeName 登録対象の名前
+     * @param employeeKana 登録対象のカナ
+     * @param mailAddress  登録対象のメールアドレス
+     * @param password     登録対象のパスワード
+     * @param management   システム権限
+     * @param departmentId 部署ID
+     * @return エラーが有った場合はエラー文言、無ければ空のリストが返る
+     */
+    private List<String> validateParameter(
+            String employeeName,
+            String employeeKana,
+            String mailAddress,
+            String password,
+            Integer management,
+            Integer departmentId
+    ) {
 
-		final String EMPLOYEE_NAME_NULL_BLANK = "社員名";
-		final String EMPLOYEE_KANA_NULL_BLANK = "社員名フリガナ";
-		final String MAIL_ADDRESS_NULL_BLANK = "メールアドレス";
-		final String PASSWORD_NULL_BLANK = "パスワード";
-		final String MANAGEMENT_ERROR = "管理者権限指定";
-		final String DEPARTMENT_ID_NULL_BLANK = "所属部署";
+        final String EMPLOYEE_NAME_NULL_BLANK = "社員名";
+        final String EMPLOYEE_KANA_NULL_BLANK = "社員名フリガナ";
+        final String MAIL_ADDRESS_NULL_BLANK = "メールアドレス";
+        final String PASSWORD_NULL_BLANK = "パスワード";
+        final String MANAGEMENT_ERROR = "管理者権限指定";
+        final String DEPARTMENT_ID_NULL_BLANK = "所属部署";
 
-		List<String> error = new ArrayList<>();
+        List<String> error = new ArrayList<>();
 
-		if (isNullOrBlank(employeeName)) {
-			error.add(EMPLOYEE_NAME_NULL_BLANK);
-		}
+        // null or 空文字判定
+        if (isNullOrBlank(employeeName)) {
+            // エラー内容を追加
+            error.add(EMPLOYEE_NAME_NULL_BLANK);
+        }
 
-		if (isNullOrBlank(employeeKana)) {
-			error.add(EMPLOYEE_KANA_NULL_BLANK);
-		}
+        // null or 空文字判定
+        if (isNullOrBlank(employeeKana)) {
+            // エラー内容を追加
+            error.add(EMPLOYEE_KANA_NULL_BLANK);
+        }
 
-		if (isNullOrBlank(mailAddress)) {
-			error.add(MAIL_ADDRESS_NULL_BLANK);
-		}
+        // null or 空文字判定
+        if (isNullOrBlank(mailAddress)) {
+            // エラー内容を追加
+            error.add(MAIL_ADDRESS_NULL_BLANK);
+        }
 
-		if (isNullOrBlank(password)) {
-			error.add(PASSWORD_NULL_BLANK);
-		}
+        // null or 空文字判定
+        if (isNullOrBlank(password)) {
+            // エラー内容を追加
+            error.add(PASSWORD_NULL_BLANK);
+        }
 
-		if (management == null) {
-			error.add(MANAGEMENT_ERROR);
-		}
+        // 管理者権限の値が不正か
+        if (management == null) {
+            // エラー内容を追加
+            error.add(MANAGEMENT_ERROR);
+        }
 
-		if (departmentId == null) {
-			error.add(DEPARTMENT_ID_NULL_BLANK);
-		}
+        // 所属部署の値が不正か
+        if (departmentId == null) {
+            // エラー内容を追加
+            error.add(DEPARTMENT_ID_NULL_BLANK);
+        }
 
-		return error;
+        return error;
 
-	}
+    }
 
-	private static boolean isNullOrBlank(String str) {
-		if (null == str) {
-			return true;
-		}
+    /**
+     * 仮引数を null or 空 判定する
+     *
+     * @param str 判定対象の文字列
+     * @return true:null or 空 false:null or 空 では無い
+     */
+    private static boolean isNullOrBlank(String str) {
+        if (null == str) {
+            return true;
+        }
 
-		return str.isBlank();
-	}
+        return str.isBlank();
+    }
 
 }
+
+
+

src/main/java/com/example/rhizome/app/presentation/controller/InsertEmployeeInputController.java

@@ -1,19 +1,5 @@
 package com.example.rhizome.app.presentation.controller;
 
-import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.*;
-
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.http.HttpSession;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
-
 import com.example.rhizome.aop.aspect.PermissionCheck;
 import com.example.rhizome.aop.aspect.SessionCheck;
 import com.example.rhizome.app.domain.service.RegisterEmployee;
@@ -22,51 +8,83 @@ import com.example.rhizome.app.presentation.controller.pageproperty.PageReturnAt
 import com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword;
 import com.example.rhizome.app.presentation.form.DepartmentForm;
 import com.example.rhizome.app.presentation.form.InsertEmployeeForm;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
 
+import javax.servlet.http.HttpSession;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_INPUT;
+
+/**
+ * 登録画面表示用コントローラ
+ */
 @Controller
 public class InsertEmployeeInputController {
 
-	private final static Logger LOGGER = Logger.getLogger(InsertEmployeeInputController.class.getName());
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(InsertEmployeeInputController.class.getName());
 
-	private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
 
-	HttpSession httpSession;
-	RegisterEmployee registerEmployee;
-	SearchDepartment searchDepartment;
+    HttpSession httpSession;
+    RegisterEmployee registerEmployee;
+    SearchDepartment searchDepartment;
 
-	@Autowired
-	public InsertEmployeeInputController(HttpSession httpSession, RegisterEmployee registerEmployee,
-			SearchDepartment searchDepartment) {
-		this.httpSession = httpSession;
-		this.registerEmployee = registerEmployee;
-		this.searchDepartment = searchDepartment;
-	}
+    @Autowired
+    public InsertEmployeeInputController(HttpSession httpSession, RegisterEmployee registerEmployee, SearchDepartment searchDepartment) {
+        this.httpSession = httpSession;
+        this.registerEmployee = registerEmployee;
+        this.searchDepartment = searchDepartment;
+    }
 
-	@ModelAttribute
-	public InsertEmployeeForm insertEmployeeForm() {
-		return new InsertEmployeeForm();
-	}
+    @ModelAttribute
+    public InsertEmployeeForm insertEmployeeForm() {
+        return new InsertEmployeeForm();
+    }
 
-	@SessionCheck
-	@PermissionCheck
-	@RequestMapping(value = INSERT_EMPLOYEE_INPUT, method = RequestMethod.POST)
-	public String insertInput(InsertEmployeeForm insertEmployeeForm, Model model) {
 
-		try {
-			model.addAttribute(PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
-					DepartmentForm.convertFrom(searchDepartment.selectAll()));
+    /**
+     * 登録画面表示処理
+     *
+     * @param insertEmployeeForm 登録画面のフォーム
+     * @param model              ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @SessionCheck
+    @PermissionCheck
+    @RequestMapping(value = INSERT_EMPLOYEE_INPUT, method = RequestMethod.POST)
+    public String insertInput(InsertEmployeeForm insertEmployeeForm, Model model) {
 
-			model.addAttribute(PageReturnAttributeKeyword.INSERT_EMPLOYEE_FORM, insertEmployeeForm);
+        try {
+            // 部署コードリストを作成し、画面に返す値としてセット
+            model.addAttribute(PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST, DepartmentForm.convertFrom(searchDepartment.selectAll()));
 
-			return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_INPUT_HTML;
+            // パラメータをセット
+            model.addAttribute(PageReturnAttributeKeyword.INSERT_EMPLOYEE_FORM, insertEmployeeForm);
 
-		} catch (Exception e) {
-			httpSession.invalidate();
+            // 登録画面に遷移
+            return TransitionTargetPageNameKeyword.INSERT_EMPLOYEE_INPUT_HTML;
 
-			e.printStackTrace();
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
 
-			LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
-			return TransitionTargetPageNameKeyword.ERROR_HTML;
-		}
-	}
+            e.printStackTrace();
+
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
+    }
 }
+
+
+

src/main/java/com/example/rhizome/app/presentation/controller/LoginController.java

@@ -1,18 +1,5 @@
 package com.example.rhizome.app.presentation.controller;
 
-import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.*;
-
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.http.HttpSession;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
 
 import com.example.rhizome.app.domain.model.LoginInfo;
 import com.example.rhizome.app.domain.model.LoginUser;
@@ -24,81 +11,138 @@ import com.example.rhizome.app.presentation.form.LoginInfoForm;
 import com.example.rhizome.app.presentation.form.LoginUserForm;
 import com.example.rhizome.app.presentation.form.MessageForm;
 import com.example.rhizome.app.presentation.form.UpdatePersonalUserForm;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
 
+import javax.servlet.http.HttpSession;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.DO_LOGIN;
+
+/**
+ * ログイン関連のコントローラ
+ */
 @Controller
 public class LoginController {
 
-	private final static Logger LOGGER = Logger.getLogger(LoginController.class.getName());
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(LoginController.class.getName());
 
-	private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
 
-	HttpSession httpSession;
-	Login login;
+    HttpSession httpSession;
+    Login login;
 
-	@Autowired
-	public LoginController(HttpSession httpSession, Login login) {
-		this.httpSession = httpSession;
-		this.login = login;
-	}
+    @Autowired
+    public LoginController(HttpSession httpSession, Login login) {
+        this.httpSession = httpSession;
+        this.login = login;
+    }
 
-	@ModelAttribute
-	public LoginUserForm loginUserForm() {
-		return new LoginUserForm();
-	}
+    @ModelAttribute
+    public LoginUserForm loginUserForm() {
+        return new LoginUserForm();
+    }
 
-	@RequestMapping(value = DO_LOGIN, method = RequestMethod.POST)
-	public String doLogin(LoginInfoForm loginInfoForm, Model model) {
+    /**
+     * 画面から渡ってきたパラメータのチェックを行う
+     *
+     * @param loginInfoForm mailAddress, password を保持したインスタンス
+     * @param model         ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @RequestMapping(value = DO_LOGIN, method = RequestMethod.POST)
+    public String doLogin(LoginInfoForm loginInfoForm, Model model) {
 
-		final String MAIL_ADDRESS_PASSWORD_ERROR = "メールアドレス、パスワードの入力内容に誤りがあります";
-		final String LOGIN_ERROR = "IDまたはパスワードが間違っています";
+        // ログに出力する
+        final String MAIL_ADDRESS_PASSWORD_ERROR = "メールアドレス、パスワードの入力内容に誤りがあります";
+        // 発生しうるErrorに対するメッセージ
+        final String LOGIN_ERROR = "IDまたはパスワードが間違っています";
 
-		try {
-			if (!LoginUserForm.checkParameter(loginInfoForm)) {
+        try {
+            // mailAddress, password の入力に誤りがあるかチェック
+            if (!LoginUserForm.checkParameter(loginInfoForm)) {
 
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR,
-						new MessageForm(MAIL_ADDRESS_PASSWORD_ERROR));
+                // mail,passwordが仕様を満たしていない場合
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(MAIL_ADDRESS_PASSWORD_ERROR));
 
-				model.addAttribute(PageReturnAttributeKeyword.LOGIN_INFO_FORM, loginInfoForm);
-				return TransitionTargetPageNameKeyword.LOGIN_HTML;
-			}
+                // エラーだった場合に login.html に処理を戻す。mailAddress, password を login.htmlに表示するために
+                // ここで addAttribute する
+                model.addAttribute(PageReturnAttributeKeyword.LOGIN_INFO_FORM, loginInfoForm);
+                // login.html に遷移する様に設定
+                return TransitionTargetPageNameKeyword.LOGIN_HTML;
+            }
 
-			LoginInfo loginInfo = createLoginInfo(httpSession, loginInfoForm);
+            // Login者情報インスタンスを作成
+            LoginInfo loginInfo = createLoginInfo(httpSession, loginInfoForm);
 
-			if (!login.canLogin(loginInfo)) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(LOGIN_ERROR));
-				model.addAttribute(PageReturnAttributeKeyword.LOGIN_INFO_FORM, loginInfoForm);
-				return TransitionTargetPageNameKeyword.LOGIN_HTML;
-			}
+            // login 可能かチェック
+            if (!login.canLogin(loginInfo)) {
+                // ログイン不可の場合、エラーメッセージをセットして入力された値とともに login.html を再表示
+                // 画面に表示するエラーメッセージをセット
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(LOGIN_ERROR));
+                // 画面に表示する mailAddress, password をセット
+                model.addAttribute(PageReturnAttributeKeyword.LOGIN_INFO_FORM, loginInfoForm);
+                // login.html に遷移
+                return TransitionTargetPageNameKeyword.LOGIN_HTML;
+            }
 
-			LoginUser loginUser = login.doLogin(loginInfo);
+            // ログイン（インスタンス作成）
+            LoginUser loginUser = login.doLogin(loginInfo);
 
-			httpSession.setAttribute(SessionKeyword.LOGIN_USER, LoginUserForm.convertFrom(loginUser));
+            // ログイン者の情報をセッション情報に格納
+            // セッションに loginUser 情報を保持し続ける = ログイン中として扱う
+            httpSession.setAttribute(SessionKeyword.LOGIN_USER, LoginUserForm.convertFrom(loginUser));
 
-			if (!loginUser.isAdminUser()) {
-				model.addAttribute(PageReturnAttributeKeyword.UPDATE_PERSONAL_EMPLOYEE_USER_FORM,
-						UpdatePersonalUserForm.convertFrom(loginUser));
-				return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_EMPLOYEE_INPUT_HTML;
-			}
+            // 管理者かチェック
+            if (!loginUser.isAdminUser()) {
+                // 管理者ではない場合直で自分の情報を更新するページに遷移する
+                // 編集対象のログイン者の情報を画面に渡す値にセット
+                model.addAttribute(PageReturnAttributeKeyword.UPDATE_PERSONAL_EMPLOYEE_USER_FORM, UpdatePersonalUserForm.convertFrom(loginUser));
+                // 個人の情報更新ページに遷移
+                return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_EMPLOYEE_INPUT_HTML;
+            }
 
-			return TransitionTargetPageNameKeyword.MENU_HTML;
+            // メニュー画面に遷移
+            return TransitionTargetPageNameKeyword.MENU_HTML;
 
-		} catch (Exception e) {
-			httpSession.invalidate();
-			e.printStackTrace();
-			LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
-			return TransitionTargetPageNameKeyword.ERROR_HTML;
-		}
-	}
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
+            e.printStackTrace();
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面に遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
+    }
 
-	private static LoginInfo createLoginInfo(HttpSession httpSession, LoginInfoForm loginInfoForm) {
-		LoginUserForm loginUserForm = (LoginUserForm) httpSession.getAttribute(SessionKeyword.LOGIN_USER);
+    /**
+     * ログイン者情報のインスタンスを作成
+     *
+     * @param httpSession   セッション情報
+     * @param loginInfoForm mailAddress, password を保持したインスタンス
+     */
+    private static LoginInfo createLoginInfo(HttpSession httpSession, LoginInfoForm loginInfoForm) {
+        // セッションからログイン者情報を取得
+        LoginUserForm loginUserForm = (LoginUserForm) httpSession.getAttribute(SessionKeyword.LOGIN_USER);
 
-		if (loginUserForm != null) {
-			return new LoginInfo(loginUserForm.getMailAddress(), loginUserForm.getPassword());
-		}
+        // セッションにログイン者情報があるか
+        if (loginUserForm != null) {
+            // セッションにログイン者情報がある場合
+            return new LoginInfo(loginUserForm.getMailAddress(), loginUserForm.getPassword());
+        }
 
-		return new LoginInfo(
-				loginInfoForm.getMailAddress(),
-				loginInfoForm.getPassword());
-	}
+        // セッションにない場合は画面からの input 値 を取得
+        return new LoginInfo(
+                loginInfoForm.getMailAddress(),
+                loginInfoForm.getPassword()
+        );
+    }
 }

src/main/java/com/example/rhizome/app/presentation/controller/LogoutController.java

@@ -1,12 +1,10 @@
 package com.example.rhizome.app.presentation.controller;
 
-import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.*;
-
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.http.HttpSession;
-
+import com.example.rhizome.aop.aspect.PermissionCheck;
+import com.example.rhizome.aop.aspect.SessionCheck;
+import com.example.rhizome.app.presentation.controller.pageproperty.PageReturnAttributeKeyword;
+import com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword;
+import com.example.rhizome.app.presentation.form.LoginUserForm;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
@@ -14,46 +12,62 @@ import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 
-import com.example.rhizome.aop.aspect.PermissionCheck;
-import com.example.rhizome.aop.aspect.SessionCheck;
-import com.example.rhizome.app.presentation.controller.pageproperty.PageReturnAttributeKeyword;
-import com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword;
-import com.example.rhizome.app.presentation.form.LoginUserForm;
+import javax.servlet.http.HttpSession;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
+import static com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword.LOGOUT;
+
+/**
+ * ログアウト処理のコントローラ
+ */
 @Controller
 public class LogoutController {
 
-	private final static Logger LOGGER = Logger.getLogger(LogoutController.class.getName());
-	private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(LogoutController.class.getName());
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
 
-	HttpSession httpSession;
+    HttpSession httpSession;
 
-	@Autowired
-	public LogoutController(HttpSession httpSession) {
-		this.httpSession = httpSession;
-	}
+    @Autowired
+    public LogoutController(HttpSession httpSession) {
+        this.httpSession = httpSession;
+    }
 
-	@ModelAttribute
-	public LoginUserForm loginUserForm() {
-		return new LoginUserForm();
-	}
+    @ModelAttribute
+    public LoginUserForm loginUserForm() {
+        return new LoginUserForm();
+    }
 
-	@PermissionCheck
-	@SessionCheck
-	@RequestMapping(value = LOGOUT, method = RequestMethod.POST)
-	public String doLogout(Model model) {
-		try {
-			httpSession.invalidate();
+    /**
+     * ログアウト処理
+     *
+     * @param model ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = LOGOUT, method = RequestMethod.POST)
+    public String doLogout(Model model) {
+        try {
+            // セッション情報の破棄
+            httpSession.invalidate();
 
-			model.addAttribute(PageReturnAttributeKeyword.LOGIN_INFO_FORM, loginUserForm());
-			return TransitionTargetPageNameKeyword.LOGIN_HTML;
+            // ログイン画面に遷移するための情報を設定
+            model.addAttribute(PageReturnAttributeKeyword.LOGIN_INFO_FORM, loginUserForm());
+            // login.html に遷移
+            return TransitionTargetPageNameKeyword.LOGIN_HTML;
 
-		} catch (Exception e) {
+        } catch (Exception e) {
 
-			LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
-			return TransitionTargetPageNameKeyword.ERROR_HTML;
-		}
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラーページに遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
 
-	}
+    }
 
 }

src/main/java/com/example/rhizome/app/presentation/controller/MenuController.java

@@ -1,27 +1,33 @@
 package com.example.rhizome.app.presentation.controller;
 
-import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.RequestMapping;
-
 import com.example.rhizome.aop.aspect.PermissionCheck;
 import com.example.rhizome.aop.aspect.SessionCheck;
 import com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword;
 import com.example.rhizome.app.presentation.form.MessageForm;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
 
+/**
+ * メニュー画面表示用コントローラ
+ */
 @Controller
 public class MenuController {
 
-	@ModelAttribute
-	public MessageForm messageForm() {
-		return new MessageForm();
-	}
+    @ModelAttribute
+    public MessageForm messageForm() {
+        return new MessageForm();
+    }
 
-	@PermissionCheck
-	@SessionCheck
-	@RequestMapping(value = TransitionTargetPageNameKeyword.SHOW_MENU)
-	public String showMenu() {
-		return TransitionTargetPageNameKeyword.MENU_HTML;
-	}
+    /**
+     * メニュー画面に遷移
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = TransitionTargetPageNameKeyword.SHOW_MENU)
+    public String showMenu() {
+        // メニュー画面遷移
+        return TransitionTargetPageNameKeyword.MENU_HTML;
+    }
 
 }

src/main/java/com/example/rhizome/app/presentation/controller/SelectDepartmentController.java

@@ -0,0 +1,98 @@
+package com.example.rhizome.app.presentation.controller;
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.servlet.http.HttpSession;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+
+import com.example.rhizome.aop.aspect.PermissionCheck;
+import com.example.rhizome.aop.aspect.SessionCheck;
+import com.example.rhizome.app.domain.service.SearchDepartment;
+import com.example.rhizome.app.domain.service.SearchEmployeeInfo;
+import com.example.rhizome.app.presentation.controller.pageproperty.PageReturnAttributeKeyword;
+import com.example.rhizome.app.presentation.controller.pageproperty.TransitionTargetPageNameKeyword;
+import com.example.rhizome.app.presentation.form.DepartmentForm;
+
+/**
+ * 社員検索画面用コントローラ　リスト全件表示、検索表示、更新、削除が可能
+ */
+@Controller
+public class SelectDepartmentController {
+
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(SelectDepartmentController.class.getName());
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+
+    HttpSession httpSession;
+    SearchDepartment searchDepartment;
+    SearchEmployeeInfo searchEmployeeInfo;
+
+    @Autowired
+    public SelectDepartmentController(HttpSession httpSession, SearchDepartment searchDepartment, SearchEmployeeInfo searchEmployeeInfo) {
+        this.httpSession = httpSession;
+        this.searchDepartment = searchDepartment;
+        this.searchEmployeeInfo = searchEmployeeInfo;
+    }
+
+    @ModelAttribute
+    public DepartmentForm departmentForm() {
+        return new DepartmentForm();
+    }
+
+    /**
+     * 社員検索画面表示処理コントローラ
+     *
+     * @param searchConditionEmployeeForm 検索画面のフォーム
+     * @param model                       ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = TransitionTargetPageNameKeyword.SELECT_DEPARTMENT, method = RequestMethod.POST)
+    public String select(DepartmentForm departmentForm, Model model) {
+
+        try {
+            // 部署一覧を取得し、画面に返す用のクラスに詰め替える
+            // 作成した部署一覧をセット
+        	System.out.println(departmentForm);
+            model.addAttribute(
+                    PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
+                    DepartmentForm.convertFrom(searchDepartment.selectAll())
+            );
+           System.out.println(PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST);
+           System.out.println(DepartmentForm.convertFrom(searchDepartment.selectAll()));
+           System.out.println(model.getAttribute("departmentFormList"));
+           
+           // 検索条件を元に検索を実施
+           // 取得した  department の情報を画面に返す用の型に詰め替えてセット
+           model.addAttribute(PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST, DepartmentForm.convertFrom(searchDepartment.searchBy(DepartmentForm.convertTo(departmentForm))));
+
+            // 検索ページに遷移
+            return TransitionTargetPageNameKeyword.SELECT_DEPARTMENT_HTML;
+
+
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
+
+            e.printStackTrace();
+
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
+
+    }
+
+
+
+}

src/main/java/com/example/rhizome/app/presentation/controller/SelectEmployeeController.java

@@ -22,65 +22,102 @@ import com.example.rhizome.app.presentation.form.DepartmentForm;
 import com.example.rhizome.app.presentation.form.EmployeeInfoForm;
 import com.example.rhizome.app.presentation.form.SearchConditionEmployeeForm;
 
+/**
+ * 社員検索画面用コントローラ　リスト全件表示、検索表示、更新、削除が可能
+ */
 @Controller
 public class SelectEmployeeController {
 
-	private final static Logger LOGGER = Logger.getLogger(SelectEmployeeController.class.getName());
-	private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(SelectEmployeeController.class.getName());
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
 
-	HttpSession httpSession;
-	SearchDepartment searchDepartment;
-	SearchEmployeeInfo searchEmployeeInfo;
+    HttpSession httpSession;
+    SearchDepartment searchDepartment;
+    SearchEmployeeInfo searchEmployeeInfo;
 
-	@Autowired
-	public SelectEmployeeController(HttpSession httpSession, SearchDepartment searchDepartment,
-			SearchEmployeeInfo searchEmployeeInfo) {
-		this.httpSession = httpSession;
-		this.searchDepartment = searchDepartment;
-		this.searchEmployeeInfo = searchEmployeeInfo;
-	}
+    @Autowired
+    public SelectEmployeeController(HttpSession httpSession, SearchDepartment searchDepartment, SearchEmployeeInfo searchEmployeeInfo) {
+        this.httpSession = httpSession;
+        this.searchDepartment = searchDepartment;
+        this.searchEmployeeInfo = searchEmployeeInfo;
+    }
 
-	@ModelAttribute
-	public SearchConditionEmployeeForm searchConditionEmployeeForm() {
-		return new SearchConditionEmployeeForm();
-	}
+    @ModelAttribute
+    public SearchConditionEmployeeForm searchConditionEmployeeForm() {
+        return new SearchConditionEmployeeForm();
+    }
 
-	@PermissionCheck
-	@SessionCheck
-	@RequestMapping(value = TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_INFO, method = RequestMethod.POST)
-	public String select(SearchConditionEmployeeForm searchConditionEmployeeForm, Model model) {
-		try {
+    /**
+     * 社員検索画面表示処理コントローラ
+     *
+     * @param searchConditionEmployeeForm 検索画面のフォーム
+     * @param model                       ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_INFO, method = RequestMethod.POST)
+    public String select(SearchConditionEmployeeForm searchConditionEmployeeForm, Model model) {
 
-			model.addAttribute(
-					PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
-					DepartmentForm.convertFrom(searchDepartment.selectAll()));
+        try {
 
-			model.addAttribute(PageReturnAttributeKeyword.EMPLOYEE_INFO_FORM_LIST, EmployeeInfoForm.convertFrom(
-					searchEmployeeInfo.searchBy(SearchConditionEmployeeForm.convertTo(searchConditionEmployeeForm))));
-			return TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_HTML;
+            // 部署一覧を取得し、画面に返す用のクラスに詰め替える
+            // 作成した部署一覧をセット
+            model.addAttribute(
+                    PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
+                    DepartmentForm.convertFrom(searchDepartment.selectAll())
+            );
 
-		} catch (Exception e) {
-			httpSession.invalidate();
+            // 検索条件を元に検索を実施
+            // 取得した EmployeeInfo（ employee + department ）の情報を画面に返す用の型に詰め替えてセット
+            model.addAttribute(PageReturnAttributeKeyword.EMPLOYEE_INFO_FORM_LIST, EmployeeInfoForm.convertFrom(searchEmployeeInfo.searchBy(SearchConditionEmployeeForm.convertTo(searchConditionEmployeeForm))));
+            // 検索ページに遷移
+            return TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_HTML;
 
-			e.printStackTrace();
 
-			LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
-			return TransitionTargetPageNameKeyword.ERROR_HTML;
-		}
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
 
-	}
+            e.printStackTrace();
 
-	@RequestMapping(value = TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_INFO_FORM_EMPTY, method = RequestMethod.POST)
-	public String select(Model model) {
-		model.addAttribute(
-				PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
-				DepartmentForm.convertFrom(searchDepartment.selectAll()));
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
 
-		model.addAttribute(PageReturnAttributeKeyword.EMPLOYEE_INFO_FORM_LIST,
-				EmployeeInfoForm.convertFrom(
-						searchEmployeeInfo.searchBy(
-								SearchConditionEmployeeForm.convertTo(searchConditionEmployeeForm()))));
+    }
 
-		return TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_HTML;
-	}
+    /**
+     * 社員検索画面表示処理コントローラ
+     * 検索条件無しの状態を作るため、空の検索条件で検索した結果を画面に返す
+     *
+     * @param model ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_INFO_FORM_EMPTY, method = RequestMethod.POST)
+    public String select(Model model) {
+
+        // 部署一覧を取得し、画面に返す用のクラスに詰め替える
+        // 作成した部署一覧をセット
+        model.addAttribute(
+                PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
+                DepartmentForm.convertFrom(searchDepartment.selectAll())
+        );
+
+        // 検索条件を元に検索を実施
+        model.addAttribute(PageReturnAttributeKeyword.EMPLOYEE_INFO_FORM_LIST,
+                EmployeeInfoForm.convertFrom(
+                        searchEmployeeInfo.searchBy(
+                                SearchConditionEmployeeForm.convertTo(searchConditionEmployeeForm())
+                        )));
+
+        // 検索ページに遷移
+        return TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_HTML;
+    }
 }

src/main/java/com/example/rhizome/app/presentation/controller/UpdateEmployeeController.java

@@ -1,19 +1,5 @@
 package com.example.rhizome.app.presentation.controller;
 
-import java.util.List;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.http.HttpSession;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
-import org.springframework.web.bind.annotation.RequestParam;
-
 import com.example.rhizome.aop.aspect.PermissionCheck;
 import com.example.rhizome.aop.aspect.SessionCheck;
 import com.example.rhizome.app.domain.model.EmployeeInfo;
@@ -26,66 +12,96 @@ import com.example.rhizome.app.presentation.form.DepartmentForm;
 import com.example.rhizome.app.presentation.form.MessageForm;
 import com.example.rhizome.app.presentation.form.SearchConditionEmployeeForm;
 import com.example.rhizome.app.presentation.form.UpdateEmployeeInfoForm;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
 
+import javax.servlet.http.HttpSession;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * 更新対象の employee が存在するか確認する為のコントローラ
+ */
 @Controller
 public class UpdateEmployeeController {
 
-	private final static Logger LOGGER = Logger.getLogger(UpdateEmployeeController.class.getName());
-	private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(UpdateEmployeeController.class.getName());
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
 
-	HttpSession httpSession;
-	SearchDepartment searchDepartment;
-	SearchEmployeeInfo searchEmployeeInfo;
+    HttpSession httpSession;
+    SearchDepartment searchDepartment;
+    SearchEmployeeInfo searchEmployeeInfo;
 
-	@Autowired
-	public UpdateEmployeeController(HttpSession httpSession, SearchDepartment searchDepartment,
-			SearchEmployeeInfo searchEmployeeInfo) {
-		this.httpSession = httpSession;
-		this.searchDepartment = searchDepartment;
-		this.searchEmployeeInfo = searchEmployeeInfo;
-	}
+    @Autowired
+    public UpdateEmployeeController(HttpSession httpSession, SearchDepartment searchDepartment, SearchEmployeeInfo searchEmployeeInfo) {
+        this.httpSession = httpSession;
+        this.searchDepartment = searchDepartment;
+        this.searchEmployeeInfo = searchEmployeeInfo;
+    }
 
-	@ModelAttribute
-	public SearchConditionEmployeeForm searchConditionEmployeeForm() {
-		return new SearchConditionEmployeeForm();
-	}
+    @ModelAttribute
+    public SearchConditionEmployeeForm searchConditionEmployeeForm() {
+        return new SearchConditionEmployeeForm();
+    }
 
-	@PermissionCheck
-	@SessionCheck
-	@RequestMapping(value = TransitionTargetPageNameKeyword.SHOW_UPDATE_EMPLOYEE, method = RequestMethod.POST)
-	public String showUpdateEmployee(@RequestParam("idEmployee") Integer idEmployee, Model model) {
-		final String UPDATE_TARGET_ID_NOT_FOUND = "更新対象のデータが見つかりません。";
+    /**
+     * 更新対象の employee が存在するか確認する為のコントローラ
+     *
+     * @param idEmployee 更新対象の employee の id
+     * @param model      ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = TransitionTargetPageNameKeyword.SHOW_UPDATE_EMPLOYEE, method = RequestMethod.POST)
+    public String showUpdateEmployee(@RequestParam("idEmployee") Integer idEmployee, Model model) {
+        final String UPDATE_TARGET_ID_NOT_FOUND = "更新対象のデータが見つかりません。";
 
-		try {
-			model.addAttribute(PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
-					DepartmentForm.convertFrom(searchDepartment.selectAll()));
+        try {
+            // 部署一覧を取得し画面に返す値としてセット
+            model.addAttribute(PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST, DepartmentForm.convertFrom(searchDepartment.selectAll()));
 
-			List<EmployeeInfo> employeeInfoList = searchEmployeeInfo.searchBy(
-					new SearchConditionEmployee(idEmployee,
-							null,
-							null,
-							null,
-							null));
+            // id を条件に更新対象のレコードを検索、取得する
+            List<EmployeeInfo> employeeInfoList = searchEmployeeInfo.searchBy(
+                    new SearchConditionEmployee(idEmployee,
+                            null,
+                            null,
+                            null,
+                            null));
 
-			if (employeeInfoList.isEmpty()) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR,
-						new MessageForm(UPDATE_TARGET_ID_NOT_FOUND));
-				return "forward:" + TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_INFO;
-			}
+            // DBに更新対象のデータがあるか
+            if (employeeInfoList.isEmpty()) {
+                // ない場合はエラーメッセージをセットして検索画面に戻る
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(UPDATE_TARGET_ID_NOT_FOUND));
+                return "forward:" + TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_INFO;
+            }
 
-			model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM,
-					UpdateEmployeeInfoForm.convertFrom(employeeInfoList.get(0)));
+            // 更新画面に遷移
+            model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, UpdateEmployeeInfoForm.convertFrom(employeeInfoList.get(0)));
 
-			return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
+            // Update画面に遷移
+            return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
 
-		} catch (Exception e) {
-			httpSession.invalidate();
 
-			e.printStackTrace();
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
 
-			LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
-			return TransitionTargetPageNameKeyword.ERROR_HTML;
+            e.printStackTrace();
 
-		}
-	}
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+
+        }
+    }
 }

src/main/java/com/example/rhizome/app/presentation/controller/UpdateEmployeeResultController.java

@@ -1,18 +1,5 @@
 package com.example.rhizome.app.presentation.controller;
 
-import java.util.List;
-import java.util.Objects;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.http.HttpSession;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
 
 import com.example.rhizome.aop.aspect.PermissionCheck;
 import com.example.rhizome.aop.aspect.SessionCheck;
@@ -28,126 +15,192 @@ import com.example.rhizome.app.presentation.form.DepartmentForm;
 import com.example.rhizome.app.presentation.form.LoginUserForm;
 import com.example.rhizome.app.presentation.form.MessageForm;
 import com.example.rhizome.app.presentation.form.UpdateEmployeeInfoForm;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
 
+import javax.servlet.http.HttpSession;
+import java.util.List;
+import java.util.Objects;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * employee を更新して結果を返す為のコントローラ
+ */
 @Controller
 public class UpdateEmployeeResultController {
 
-	private final static Logger LOGGER = Logger.getLogger(UpdateEmployeeController.class.getName());
-	private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(UpdateEmployeeController.class.getName());
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
 
-	HttpSession httpSession;
-	SearchDepartment searchDepartment;
-	SearchEmployee searchEmployee;
-	UpdateEmployee updateEmployee;
+    HttpSession httpSession;
+    SearchDepartment searchDepartment;
+    SearchEmployee searchEmployee;
+    UpdateEmployee updateEmployee;
 
-	@Autowired
-	public UpdateEmployeeResultController(HttpSession httpSession, SearchDepartment searchDepartment,
-			SearchEmployee searchEmployee, UpdateEmployee updateEmployee) {
-		this.httpSession = httpSession;
-		this.searchDepartment = searchDepartment;
-		this.searchEmployee = searchEmployee;
-		this.updateEmployee = updateEmployee;
-	}
+    @Autowired
+    public UpdateEmployeeResultController(HttpSession httpSession, SearchDepartment searchDepartment, SearchEmployee searchEmployee, UpdateEmployee updateEmployee) {
+        this.httpSession = httpSession;
+        this.searchDepartment = searchDepartment;
+        this.searchEmployee = searchEmployee;
+        this.updateEmployee = updateEmployee;
+    }
 
-	private static boolean checkDuplicateMailAddress(List<Employee> employeeList,
-			UpdateEmployeeInfoForm updateEmployeeInfoForm) {
-		if (!employeeList.isEmpty()) {
-			return Objects.equals(employeeList.get(0).getIdEmployee(), updateEmployeeInfoForm.getIdEmployee());
-		}
-		return true;
-	}
+    /**
+     * メールアドレスの重複チェック
+     *
+     * @param employeeList           元の employeeList
+     * @param updateEmployeeInfoForm 更新対象のデータ
+     * @return true:重複無し  false:重複あり
+     */
+    private static boolean checkDuplicateMailAddress(List<Employee> employeeList, UpdateEmployeeInfoForm updateEmployeeInfoForm) {
+        // メールアドレスが既に使われていた場合
+        if (!employeeList.isEmpty()) {
+            // 重複が有った場合に、同一人物のものであれば上書きOKとする
+            return Objects.equals(employeeList.get(0).getIdEmployee(), updateEmployeeInfoForm.getIdEmployee());
+        }
+        return true;
+    }
 
-	@PermissionCheck
-	@SessionCheck
-	@RequestMapping(value = TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_RESULT, method = RequestMethod.POST)
-	public String employeeUpdateResult(@ModelAttribute UpdateEmployeeInfoForm updateEmployeeInfoForm, Model model) {
+    /**
+     * 更新結果画面表示処理
+     *
+     * @param updateEmployeeInfoForm 更新画面のフォーム
+     * @param model                  ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_RESULT, method = RequestMethod.POST)
+    public String employeeUpdateResult(@ModelAttribute UpdateEmployeeInfoForm updateEmployeeInfoForm, Model model) {
 
-		final String DUPLICATION = "既に登録済みのメールアドレスです。";
-		final String NOTHING = "項目が空欄です。";
-		final String ADMIN_USER = "更新対象者がログイン者のため、管理者権限を変更できません。";
-		final String NO_TARGET = "更新対象のデータが見つかりません。";
+        final String DUPLICATION = "既に登録済みのメールアドレスです。";
+        final String NOTHING = "項目が空欄です。";
+        final String ADMIN_USER = "更新対象者がログイン者のため、管理者権限を変更できません。";
+        final String NO_TARGET = "更新対象のデータが見つかりません。";
 
-		final String UPDATE_COMPLETE = "更新が完了しました。";
+        final String UPDATE_COMPLETE = "更新が完了しました。";
 
-		try {
 
-			model.addAttribute(PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST,
-					DepartmentForm.convertFrom(searchDepartment.selectAll()));
+        try {
 
-			String error = UpdateEmployeeInfoForm.validatePassword(
-					updateEmployeeInfoForm.getPassword(),
-					updateEmployeeInfoForm.getPasswordConfirm());
+            // 部署一覧取得
+            model.addAttribute(PageReturnAttributeKeyword.DEPARTMENT_FORM_LIST, DepartmentForm.convertFrom(searchDepartment.selectAll()));
 
-			if (!error.isBlank()) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(error));
-				model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, updateEmployeeInfoForm);
+            // パスワードが仕様を満たしているか確認
+            String error = UpdateEmployeeInfoForm.validatePassword(
+                    updateEmployeeInfoForm.getPassword(),
+                    updateEmployeeInfoForm.getPasswordConfirm()
+            );
 
-				return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
-			}
+            // エラーが存在するか
+            if (!error.isBlank()) {
+                // エラーが存在する場合、更新画面に遷移
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(error));
+                model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, updateEmployeeInfoForm);
 
-			List<Employee> employeeList = searchEmployee.searchEmployee(updateEmployeeInfoForm.getMailAddress());
+                return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
+            }
 
-			if (!checkDuplicateMailAddress(employeeList, updateEmployeeInfoForm)) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(DUPLICATION));
-				model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, updateEmployeeInfoForm);
+            // メールアドレスを元に検索
+            List<Employee> employeeList = searchEmployee.searchEmployee(updateEmployeeInfoForm.getMailAddress());
 
-				return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
-			}
+            // 既に登録済みのメールアドレスが存在するか
+            if (!checkDuplicateMailAddress(employeeList, updateEmployeeInfoForm)) {
+                // 存在する場合はエラーメッセージを設定して更新入力画面に遷移
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(DUPLICATION));
+                model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, updateEmployeeInfoForm);
 
-			LoginUserForm loginUserForm = (LoginUserForm) httpSession.getAttribute(SessionKeyword.LOGIN_USER);
+                return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
+            }
 
-			if (isUpdateTargetLoginUserAdminToNormal(updateEmployeeInfoForm, loginUserForm)) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(ADMIN_USER));
-				model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, updateEmployeeInfoForm);
-				return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
-			}
+            // session 情報からログイン者の情報を取得
+            LoginUserForm loginUserForm = (LoginUserForm) httpSession.getAttribute(SessionKeyword.LOGIN_USER);
 
-			if (!UpdateEmployeeInfoForm.hasErrorParameter(updateEmployeeInfoForm)) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(NOTHING));
-				model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, updateEmployeeInfoForm);
+            // ログイン者が更新対象で、権限を管理者権限から一般権限に変更しようとしているかチェック
+            if (isUpdateTargetLoginUserAdminToNormal(updateEmployeeInfoForm, loginUserForm)) {
+                // 存在する場合はエラーメッセージを設定して更新入力画面に遷移
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(ADMIN_USER));
+                model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, updateEmployeeInfoForm);
+                return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
+            }
 
-				return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
-			}
+            //　画面から渡ってきた値が必須を満たしているか
+            if (!UpdateEmployeeInfoForm.hasErrorParameter(updateEmployeeInfoForm)) {
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(NOTHING));
+                model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, updateEmployeeInfoForm);
 
-			Employee beforeEmployee = searchEmployee.searchEmployeeByIdEmployee(updateEmployeeInfoForm.getIdEmployee());
-			if (beforeEmployee.getIdEmployee() == null) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(NO_TARGET));
-				model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, updateEmployeeInfoForm);
+                return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
+            }
 
-				return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
-			}
+            // 更新前のデータを取得
+            Employee beforeEmployee = searchEmployee.searchEmployeeByIdEmployee(updateEmployeeInfoForm.getIdEmployee());
+            if (beforeEmployee.getIdEmployee() == null) {
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(NO_TARGET));
+                model.addAttribute(PageReturnAttributeKeyword.UPDATE_EMPLOYEE_INFO_FORM, updateEmployeeInfoForm);
 
-			updateEmployee.updateEmployee(beforeEmployee, UpdateEmployeeInfoForm.convertTo(updateEmployeeInfoForm));
+                return TransitionTargetPageNameKeyword.UPDATE_EMPLOYEE_INPUT_HTML;
+            }
 
-			LoginUser updatedTargetEmployee = searchEmployee.searchLoginUser(updateEmployeeInfoForm.getMailAddress());
+            // 画面用の型からビジネスロジック用のモデルに変換し、Updateを実行
+            updateEmployee.updateEmployee(beforeEmployee, UpdateEmployeeInfoForm.convertTo(updateEmployeeInfoForm));
 
-			if (Objects.equals(updatedTargetEmployee.getIdEmployee(), loginUserForm.getIdEmployee())) {
-				httpSession.setAttribute(SessionKeyword.LOGIN_USER, LoginUserForm.convertFrom(updatedTargetEmployee));
-			}
+            // Update後の情報を再取得
+            LoginUser updatedTargetEmployee = searchEmployee.searchLoginUser(updateEmployeeInfoForm.getMailAddress());
 
-			model.addAttribute(PageReturnAttributeKeyword.MESSAGE_INFO, new MessageForm(UPDATE_COMPLETE));
+            // ログイン者と更新した対象が同じアカウントだった場合、session情報を更新
+            if (Objects.equals(updatedTargetEmployee.getIdEmployee(), loginUserForm.getIdEmployee())) {
+                // ログイン者の情報をセッション情報に格納
+                httpSession.setAttribute(SessionKeyword.LOGIN_USER, LoginUserForm.convertFrom(updatedTargetEmployee));
+            }
 
-			return "forward:" + TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_INFO_FORM_EMPTY;
+            // 更新結果のメッセージを画面にセットし一覧画面に遷移
+            model.addAttribute(PageReturnAttributeKeyword.MESSAGE_INFO, new MessageForm(UPDATE_COMPLETE));
 
-		} catch (Exception e) {
-			httpSession.invalidate();
+            // forward 先で不用意な動作をしないために UpdateEmployeeInfoForm をクリア
+            return "forward:" + TransitionTargetPageNameKeyword.SELECT_EMPLOYEE_INFO_FORM_EMPTY;
 
-			e.printStackTrace();
-			LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
-			return TransitionTargetPageNameKeyword.ERROR_HTML;
-		}
 
-	}
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
 
-	private boolean isUpdateTargetLoginUserAdminToNormal(UpdateEmployeeInfoForm updateEmployeeInfoForm,
-			LoginUserForm loginUserForm) {
+            e.printStackTrace();
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
 
-		if (!Objects.equals(updateEmployeeInfoForm.getIdEmployee(), loginUserForm.getIdEmployee())) {
-			return false;
-		}
+    }
 
-		return updateEmployeeInfoForm.getAdminAuth().equals(0);
+    /**
+     * ログイン者がログイン者自身を更新する際
+     * 管理者権限から一般権限に変更する内容も含まれているかチェックする
+     *
+     * @param updateEmployeeInfoForm 更新対象データ
+     * @param loginUserForm          ログイン者情報
+     * @return true:ログイン者自身のデータをUpdate管理者→一般に権限変更しようとしている。
+     * false:Update対象者がログイン者自身ではない or 管理者権限 → 一般権限 への更新は含まれていない
+     */
+    private boolean isUpdateTargetLoginUserAdminToNormal(UpdateEmployeeInfoForm updateEmployeeInfoForm, LoginUserForm loginUserForm) {
+
+        // ログイン者が今回の更新対象か
+        if (!Objects.equals(updateEmployeeInfoForm.getIdEmployee(), loginUserForm.getIdEmployee())) {
+            // 今回の対象者はログイン者ではない
+            return false;
+        }
+
+        // 管理者から一般権限への変更があるか
+        return updateEmployeeInfoForm.getAdminAuth().equals(0);
+
+    }
 
-	}
 
 }

src/main/java/com/example/rhizome/app/presentation/controller/UpdatePersonalEmployeeResultController.java

@@ -1,18 +1,5 @@
 package com.example.rhizome.app.presentation.controller;
 
-import java.util.List;
-import java.util.Objects;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.http.HttpSession;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
 
 import com.example.rhizome.aop.aspect.PermissionCheck;
 import com.example.rhizome.aop.aspect.SessionCheck;
@@ -25,103 +12,152 @@ import com.example.rhizome.app.presentation.controller.pageproperty.TransitionTa
 import com.example.rhizome.app.presentation.form.LoginUserForm;
 import com.example.rhizome.app.presentation.form.MessageForm;
 import com.example.rhizome.app.presentation.form.UpdatePersonalUserForm;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
 
+import javax.servlet.http.HttpSession;
+import java.util.List;
+import java.util.Objects;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * 個人情報更新用コントローラ
+ */
 @Controller
 public class UpdatePersonalEmployeeResultController {
 
-	private final static Logger LOGGER = Logger.getLogger(UpdatePersonalEmployeeResultController.class.getName());
+    // ログ出力用インスタンス
+    private final static Logger LOGGER = Logger.getLogger(UpdatePersonalEmployeeResultController.class.getName());
 
-	private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
+    // エラーメッセージ用の定数フィールド
+    private final static String SEVERE_ERROR_MESSAGE = "エラーが発生しました！";
 
-	HttpSession httpSession;
-	SearchEmployee searchEmployee;
-	UpdateEmployee updateEmployee;
+    HttpSession httpSession;
+    SearchEmployee searchEmployee;
+    UpdateEmployee updateEmployee;
 
-	@Autowired
-	public UpdatePersonalEmployeeResultController(HttpSession httpSession, SearchEmployee searchEmployee,
-			UpdateEmployee updateEmployee) {
-		this.httpSession = httpSession;
-		this.searchEmployee = searchEmployee;
-		this.updateEmployee = updateEmployee;
-	}
+    @Autowired
+    public UpdatePersonalEmployeeResultController(HttpSession httpSession, SearchEmployee searchEmployee, UpdateEmployee updateEmployee) {
+        this.httpSession = httpSession;
+        this.searchEmployee = searchEmployee;
+        this.updateEmployee = updateEmployee;
+    }
 
-	private static boolean checkDuplicateMailAddress(List<Employee> employeeList,
-			UpdatePersonalUserForm updatePersonalUserForm) {
-		if (!employeeList.isEmpty()) {
-			return Objects.equals(employeeList.get(0).getIdEmployee(), updatePersonalUserForm.getIdEmployee());
-		}
-		return true;
-	}
+    /**
+     * メールアドレスの重複チェック
+     *
+     * @param employeeList           元の employeeList
+     * @param updatePersonalUserForm 更新対象のデータ
+     * @return true:重複無し  false:重複あり
+     */
+    private static boolean checkDuplicateMailAddress(List<Employee> employeeList, UpdatePersonalUserForm updatePersonalUserForm) {
+        // メールアドレスが既に使われていた場合
+        if (!employeeList.isEmpty()) {
+            // 更新対象のデータと同じIDの場合は重複していないとみなす
+            return Objects.equals(employeeList.get(0).getIdEmployee(), updatePersonalUserForm.getIdEmployee());
+        }
+        return true;
+    }
 
-	@ModelAttribute
-	public UpdatePersonalUserForm personalUpdateUserForm() {
-		return new UpdatePersonalUserForm();
-	}
+    @ModelAttribute
+    public UpdatePersonalUserForm personalUpdateUserForm() {
+        return new UpdatePersonalUserForm();
+    }
 
-	@PermissionCheck
-	@SessionCheck
-	@RequestMapping(value = TransitionTargetPageNameKeyword.PERSONAL_UPDATE_RESULT, method = RequestMethod.POST)
-	public String personalEmployeeUpdateResult(UpdatePersonalUserForm updatePersonalUserForm, Model model) {
+    /**
+     * 個人情報更新結果画面表示処理
+     *
+     * @param updatePersonalUserForm 個人情報更新画面のフォーム
+     * @param model                  ビューにデータを渡すためのコンテナ
+     * @return 遷移先の画面
+     */
+    @PermissionCheck
+    @SessionCheck
+    @RequestMapping(value = TransitionTargetPageNameKeyword.PERSONAL_UPDATE_RESULT, method = RequestMethod.POST)
+    public String personalEmployeeUpdateResult(UpdatePersonalUserForm updatePersonalUserForm, Model model) {
 
-		final String NOTHING = "項目が空欄です。";
-		final String DUPLICATION = "既に登録済みのメールアドレスです。";
+        final String NOTHING = "項目が空欄です。";
+        final String DUPLICATION = "既に登録済みのメールアドレスです。";
 
-		try {
+        try {
 
-			if (updatePersonalUserForm.getIdEmployee() == null) {
-				LoginUserForm loginUserForm = (LoginUserForm) httpSession.getAttribute(SessionKeyword.LOGIN_USER);
-				model.addAttribute(PageReturnAttributeKeyword.UPDATE_PERSONAL_EMPLOYEE_USER_FORM, UpdatePersonalUserForm
-						.convertFrom(searchEmployee.searchLoginUser(loginUserForm.getMailAddress())));
+            // 更新完了画面からの遷移の場合
+            if (updatePersonalUserForm.getIdEmployee() == null) {
+                // ログイン者の情報を取得
+                LoginUserForm loginUserForm = (LoginUserForm) httpSession.getAttribute(SessionKeyword.LOGIN_USER);
+                // ログイン者の情報を元に個人情報更新画面の初期表示用のインスタンスを作成
+                model.addAttribute(PageReturnAttributeKeyword.UPDATE_PERSONAL_EMPLOYEE_USER_FORM, UpdatePersonalUserForm.convertFrom(searchEmployee.searchLoginUser(loginUserForm.getMailAddress())));
 
-				return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_EMPLOYEE_INPUT_HTML;
-			}
+                return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_EMPLOYEE_INPUT_HTML;
+            }
 
-			String error = UpdatePersonalUserForm.validatePassword(
-					updatePersonalUserForm.getPassword(),
-					updatePersonalUserForm.getPasswordConfirm());
+            // パスワードが仕様を満たしているかチェック
+            String error = UpdatePersonalUserForm.validatePassword(
+                    updatePersonalUserForm.getPassword(),
+                    updatePersonalUserForm.getPasswordConfirm()
+            );
 
-			if (!error.isBlank()) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(error));
-				model.addAttribute(PageReturnAttributeKeyword.UPDATE_PERSONAL_EMPLOYEE_USER_FORM,
-						updatePersonalUserForm);
+            // エラーがあるか
+            if (!error.isBlank()) {
+                // エラーが有る場合メッセージをセットして個人情報更新入力画面に遷移
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(error));
+                model.addAttribute(PageReturnAttributeKeyword.UPDATE_PERSONAL_EMPLOYEE_USER_FORM, updatePersonalUserForm);
 
-				return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_EMPLOYEE_INPUT_HTML;
-			}
+                return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_EMPLOYEE_INPUT_HTML;
+            }
 
-			if (!UpdatePersonalUserForm.hasErrorParameter(updatePersonalUserForm)) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(NOTHING));
-				model.addAttribute(PageReturnAttributeKeyword.UPDATE_PERSONAL_EMPLOYEE_USER_FORM,
-						updatePersonalUserForm);
+            // 入力必須を満たしているか
+            if (!UpdatePersonalUserForm.hasErrorParameter(updatePersonalUserForm)) {
+                // 満たしていない場合、メッセージをセットして個人情報更新入力画面に遷移
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(NOTHING));
+                model.addAttribute(PageReturnAttributeKeyword.UPDATE_PERSONAL_EMPLOYEE_USER_FORM, updatePersonalUserForm);
 
-				return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_EMPLOYEE_INPUT_HTML;
-			}
+                return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_EMPLOYEE_INPUT_HTML;
+            }
 
-			if (!checkDuplicateMailAddress(
-					searchEmployee.searchEmployee(updatePersonalUserForm.getMailAddress()),
-					updatePersonalUserForm)) {
-				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(DUPLICATION));
-				model.addAttribute(PageReturnAttributeKeyword.UPDATE_PERSONAL_EMPLOYEE_USER_FORM,
-						updatePersonalUserForm);
+            // メールアドレス重複チェック
+            if (!checkDuplicateMailAddress(
+                    searchEmployee.searchEmployee(updatePersonalUserForm.getMailAddress()),
+                    updatePersonalUserForm)
+            ) {
+                // メールアドレスが既に使われていた場合
+                // 個人情報更新ページに遷移
+                model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR, new MessageForm(DUPLICATION));
+                model.addAttribute(PageReturnAttributeKeyword.UPDATE_PERSONAL_EMPLOYEE_USER_FORM, updatePersonalUserForm);
 
-				return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_EMPLOYEE_INPUT_HTML;
-			}
+                return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_EMPLOYEE_INPUT_HTML;
+            }
 
-			updateEmployee.updateEmployee(
-					searchEmployee.searchEmployeeByIdEmployee(updatePersonalUserForm.getIdEmployee()),
-					UpdatePersonalUserForm.convertTo(updatePersonalUserForm));
+            //更新前のEmployeeの情報を取得
+            // 画面用のインスタンスから更新用のインスタンスに変換し、Update実施
+            updateEmployee.updateEmployee(
+                    searchEmployee.searchEmployeeByIdEmployee(updatePersonalUserForm.getIdEmployee()),
+                    UpdatePersonalUserForm.convertTo(updatePersonalUserForm)
+            );
 
-			httpSession.setAttribute(
-					SessionKeyword.LOGIN_USER,
-					LoginUserForm.convertFrom(
-							searchEmployee.searchLoginUser(updatePersonalUserForm.getMailAddress())));
+            // ログイン者の情報をセッション情報に格納
+            httpSession.setAttribute(
+                    SessionKeyword.LOGIN_USER,
+                    LoginUserForm.convertFrom(
+                            searchEmployee.searchLoginUser(updatePersonalUserForm.getMailAddress()))
+            );
 
-			return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_RESULT_HTML;
+            // 更新結果画面に遷移
+            return TransitionTargetPageNameKeyword.UPDATE_PERSONAL_RESULT_HTML;
 
-		} catch (Exception e) {
-			httpSession.invalidate();
+        } catch (Exception e) {
+            // ログイン情報の破棄
+            httpSession.invalidate();
 
-			LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
-			return TransitionTargetPageNameKeyword.ERROR_HTML;
-		}
-	}
+            // エラーログ出力
+            LOGGER.log(Level.SEVERE, SEVERE_ERROR_MESSAGE, e);
+            // エラー画面遷移
+            return TransitionTargetPageNameKeyword.ERROR_HTML;
+        }
+    }
 }

src/main/java/com/example/rhizome/app/presentation/controller/pageproperty/SessionKeyword.java

@@ -1,5 +1,9 @@
 package com.example.rhizome.app.presentation.controller.pageproperty;
 
+/**
+ * Sessionキーを管理する
+ */
 public class SessionKeyword {
-	public static final String LOGIN_USER = "loginUser";
+    // SESSION情報として格納したいログイン者の情報
+    public static final String LOGIN_USER = "loginUser";
 }

src/main/java/com/example/rhizome/app/presentation/controller/pageproperty/TransitionTargetPageNameKeyword.java

@@ -17,9 +17,11 @@ public class TransitionTargetPageNameKeyword {
     // 管理者向け
     public static final String MENU_HTML = "menu";
     public static final String SELECT_EMPLOYEE_HTML = "selectEmployee";
+    public static final String SELECT_DEPARTMENT_HTML = "selectDepartment";
     public static final String INSERT_EMPLOYEE_INPUT_HTML = "insertEmployeeInput";
     public static final String INSERT_EMPLOYEE_CONFIRM_HTML = "insertEmployeeConfirm";
     public static final String INSERT_EMPLOYEE_RESULT_HTML = "insertEmployeeResult";
+    public static final String INSERT_DEVELOPMENT_INPUT_HTML = "insertDevelopmentInput";
     public static final String UPDATE_EMPLOYEE_INPUT_HTML = "updateEmployeeInput";
 
     public static final String ERROR_HTML = "error";
@@ -36,14 +38,21 @@ public class TransitionTargetPageNameKeyword {
 
     // 管理者向け(Controller)
     public static final String DELETE_EMPLOYEE = "/deleteEmployee";
+//    public static final String DELETE_DEPARTMENT = "/deleteDepartment";
     public static final String INSERT_EMPLOYEE_INPUT = "/insertEmployeeInput";
     public static final String INSERT_EMPLOYEE_CONFIRM = "/insertEmployeeConfirm";
     public static final String INSERT_EMPLOYEE = "/insertEmployee";
+    public static final String INSERT_DEPARTMENT = "/insertDepartmentInput";
+//    public static final String INSERT_DEPARTMENT_INPUT = "/selectDepartmentInfo";
+//    public static final String INSERT_DEPARTMENT_CONFIRM = "/selectDepartmentConfirm";
     public static final String SHOW_MENU = "/showMenu";
     public static final String SELECT_EMPLOYEE_INFO = "/selectEmployeeInfo";
     public static final String SELECT_EMPLOYEE_INFO_FORM_EMPTY = "/selectAll";
     public static final String SHOW_UPDATE_EMPLOYEE = "/showUpdateEmployee";
     public static final String UPDATE_EMPLOYEE_RESULT = "/updateEmployeeResult";
+    public static final String SELECT_DEPARTMENT = "/selectDepartment";
+    public static final String SELECT_DEPARTMENT_INFO_FORM_EMPTY = "/selectDepartmentAll";
+    
 
     // Department
     // HTML
@@ -66,8 +75,10 @@ public class TransitionTargetPageNameKeyword {
                 INSERT_EMPLOYEE_INPUT,
                 INSERT_EMPLOYEE_CONFIRM,
                 INSERT_EMPLOYEE,
+                INSERT_DEPARTMENT,
                 SHOW_MENU,
                 SELECT_EMPLOYEE_INFO,
+                SELECT_DEPARTMENT,
                 SELECT_EMPLOYEE_INFO_FORM_EMPTY,
                 SHOW_UPDATE_EMPLOYEE,
                 UPDATE_EMPLOYEE_RESULT

src/main/java/com/example/rhizome/app/presentation/form/DepartmentForm.java

@@ -3,23 +3,62 @@ package com.example.rhizome.app.presentation.form;
 import java.util.List;
 
 import com.example.rhizome.app.domain.model.Department;
+import com.example.rhizome.app.domain.model.SearchConditionDepartment;
 
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+/**
+ * 画面の表示に使う部署コード管理用のクラス
+ */
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class DepartmentForm {
-	private Integer idDepartment;
-	private String nmDepartment;
+    /**
+     * 部署ID
+     */
+    private Integer idDepartment;
+    /**
+     * 部署名
+     */
+    private String nmDepartment;
 
-	public static DepartmentForm convertFrom(Department department) {
-		return new DepartmentForm(department.getIdDepartment(), department.getNmDepartment());
-	}
+    /**
+     * business 層の Department クラスから画面用（presentation 層）の DepartmentForm に
+     * 変換します。
+     *
+     * @param department business 層の Department インスタンス
+     * @return 画面用（presentation 層）の DepartmentForm インスタンス
+     */
+    public static DepartmentForm convertFrom(Department department) {
+        return new DepartmentForm(department.getIdDepartment(), department.getNmDepartment());
+    }
 
-	public static List<DepartmentForm> convertFrom(List<Department> departmentList) {
-		return departmentList.stream().map(DepartmentForm::convertFrom).toList();
-	}
+    /**
+     * business 層の Department クラスから画面用（presentation 層）の DepartmentForm に
+     * 変換します。（リスト版）
+     *
+     * @param departmentList business 層の Department インスタンスのリスト
+     * @return 画面用（presentation 層）の DepartmentForm インスタンスのリスト
+     */
+    public static List<DepartmentForm> convertFrom(List<Department> departmentList) {
+        return departmentList.stream().map(DepartmentForm::convertFrom).toList();
+    }
+    
+    /**
+     * 画面用（presentation 層）の DepartmentForm クラスから business 層の SearchConditionDepartment クラスに
+     * 変換します。
+     *
+     * @param departmentForm 画面用（presentation 層）の departmentForm インスタンス
+     * @return business 層の searchConditionDepartment インスタンス
+     */
+    public static SearchConditionDepartment convertTo(DepartmentForm departmentForm) {
+        return new SearchConditionDepartment(
+        		departmentForm.getIdDepartment(),
+        		departmentForm.getNmDepartment()
+                
+        );
+    }
 }

src/main/java/com/example/rhizome/app/presentation/form/EmployeeInfoForm.java

@@ -1,40 +1,82 @@
 package com.example.rhizome.app.presentation.form;
 
-import java.util.List;
 
 import com.example.rhizome.app.domain.model.EmployeeInfo;
-
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+import java.util.List;
+
+/**
+ * 画面に表示するために employee と department を Join した構造を扱うクラス
+ */
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class EmployeeInfoForm {
 
-	private Integer idEmployee;
-	private String nmEmployee;
-	private String knEmployee;
-	private String mailAddress;
-	private String password;
-	private Integer adminAuth;
-	private Integer idDepartment;
-	private String nmDepartment;
+    /**
+     * 社員ID
+     */
+    private Integer idEmployee;
+    /**
+     * 社員名
+     */
+    private String nmEmployee;
+    /**
+     * 社員名カナ
+     */
+    private String knEmployee;
+    /**
+     * メールアドレス
+     */
+    private String mailAddress;
+    /**
+     * パスワード
+     */
+    private String password;
+    /**
+     * パスワード
+     */
+    private Integer adminAuth;
+    /**
+     * 部署ID
+     */
+    private Integer idDepartment;
+    /**
+     * 部署名
+     */
+    private String nmDepartment;
 
-	public static EmployeeInfoForm convertFrom(EmployeeInfo employeeInfo) {
-		return new EmployeeInfoForm(
-				employeeInfo.getEmployee().getIdEmployee(),
-				employeeInfo.getEmployee().getNmEmployee(),
-				employeeInfo.getEmployee().getKnEmployee(),
-				employeeInfo.getEmployee().getMailAddress(),
-				employeeInfo.getEmployee().getPassword(),
-				employeeInfo.getEmployee().getAdminAuth(),
-				employeeInfo.getDepartment().getIdDepartment(),
-				employeeInfo.getDepartment().getNmDepartment());
-	}
+    /**
+     * business 層の EmployeeInfo クラスから画面用（presentation 層）の EmployeeInfoForm に
+     * 変換します。
+     *
+     * @param employeeInfo business 層の EmployeeInfo インスタンス
+     * @return クラスから画面用（presentation 層）の EmployeeInfoForm インスタンス
+     */
+    public static EmployeeInfoForm convertFrom(EmployeeInfo employeeInfo) {
+        return new EmployeeInfoForm(
+                employeeInfo.getEmployee().getIdEmployee(),
+                employeeInfo.getEmployee().getNmEmployee(),
+                employeeInfo.getEmployee().getKnEmployee(),
+                employeeInfo.getEmployee().getMailAddress(),
+                employeeInfo.getEmployee().getPassword(),
+                employeeInfo.getEmployee().getAdminAuth(),
+                employeeInfo.getDepartment().getIdDepartment(),
+                employeeInfo.getDepartment().getNmDepartment()
+        );
+    }
 
-	public static List<EmployeeInfoForm> convertFrom(List<EmployeeInfo> employeeInfoList) {
-		return employeeInfoList.stream().map(EmployeeInfoForm::convertFrom).toList();
-	}
+    /**
+     * business 層の EmployeeInfo クラスから画面用（presentation 層）の EmployeeInfoForm に
+     * 変換します。（リスト版）
+     *
+     * @param employeeInfoList business 層の EmployeeInfo インスタンスのリスト
+     * @return クラスから画面用（presentation 層）の EmployeeInfoForm インスタンスのリスト
+     */
+    public static List<EmployeeInfoForm> convertFrom(List<EmployeeInfo> employeeInfoList) {
+        return employeeInfoList.stream().map(EmployeeInfoForm::convertFrom).toList();
+    }
 }

src/main/java/com/example/rhizome/app/presentation/form/InsertEmployeeForm.java

@@ -1,102 +1,152 @@
 package com.example.rhizome.app.presentation.form;
 
-import java.util.ArrayList;
-import java.util.List;
-
 import com.example.rhizome.app.domain.model.Employee;
-
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 画面から渡ってきた登録内容をまとめ、再度画面に表示する為のクラス
+ */
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class InsertEmployeeForm {
 
-	private String nmEmployee;
+    /**
+     * 社員名
+     */
+    private String nmEmployee;
 
-	private String knEmployee;
+    /**
+     * 社員名カナ
+     */
+    private String knEmployee;
 
-	private String mailAddress;
+    /**
+     * メールアドレス
+     */
+    private String mailAddress;
 
-	private String password;
+    /**
+     * パスワード
+     */
+    private String password;
 
-	private String passwordConfirm;
+    /**
+     * 確認用パスワード
+     */
+    private String passwordConfirm;
 
-	private Integer adminAuth;
+    /**
+     * 管理者権限
+     */
+    private Integer adminAuth;
 
-	private Integer idDepartment;
+    /**
+     * 部署ID
+     */
+    private Integer idDepartment;
 
-	private static void checkPassword(String password, String passwordConfirm, List<String> error) {
-		final String PASSWORD_NULL_BLANK = "パスワード が未入力です。";
-		final String PASSWORD_CONFIRM_NULL_BLANK = "パスワード確認用 が未入力です。";
-		final String PASSWORD_MISMATCH = "パスワード と パスワード確認用 が一致しません。";
+    /**
+     * パスワードのValidation
+     * チェック対象にエラーが有った場合エラーリストに文言を追加する
+     *
+     * @param password        登録対象のパスワード
+     * @param passwordConfirm 登録対象のパスワード再入力
+     * @param error           エラーリスト
+     */
+    private static void checkPassword(String password, String passwordConfirm, List<String> error) {
+        final String PASSWORD_NULL_BLANK = "パスワード が未入力です。";
+        final String PASSWORD_CONFIRM_NULL_BLANK = "パスワード確認用 が未入力です。";
+        final String PASSWORD_MISMATCH = "パスワード と パスワード確認用 が一致しません。";
 
-		if (isNullOrBlank(password)) {
-			error.add(PASSWORD_NULL_BLANK);
-			return;
-		}
-		if (isNullOrBlank(passwordConfirm)) {
-			error.add(PASSWORD_CONFIRM_NULL_BLANK);
-			return;
-		}
+        if (isNullOrBlank(password)) {
+            error.add(PASSWORD_NULL_BLANK);
+            return;
+        }
+        if (isNullOrBlank(passwordConfirm)) {
+            error.add(PASSWORD_CONFIRM_NULL_BLANK);
+            return;
+        }
 
-		if (!password.equals(passwordConfirm)) {
-			error.add(PASSWORD_MISMATCH);
-		}
-	}
+        if (!password.equals(passwordConfirm)) {
+            error.add(PASSWORD_MISMATCH);
+        }
+    }
 
-	private static boolean isNullOrBlank(String str) {
-		if (null == str) {
-			return true;
-		}
+    /**
+     * 仮引数を null or 空 判定する
+     *
+     * @param str 判定対象の文字列
+     * @return true:null or 空 false:null or 空 では無い
+     */
+    private static boolean isNullOrBlank(String str) {
+        if (null == str) {
+            return true;
+        }
 
-		return str.isBlank();
-	}
+        return str.isBlank();
+    }
 
-	public static Employee convertTo(InsertEmployeeForm insertEmployeeForm) {
-		return new Employee(
-				null,
-				insertEmployeeForm.getNmEmployee(),
-				insertEmployeeForm.getKnEmployee(),
-				insertEmployeeForm.getMailAddress(),
-				insertEmployeeForm.getPassword(),
-				insertEmployeeForm.getAdminAuth(),
-				insertEmployeeForm.getIdDepartment());
-	}
+    /**
+     * 画面から渡ってきた登録内容をまとめ、ビジネスモデルに変換
+     *
+     * @param insertEmployeeForm 画面から渡ってきた登録内容
+     * @return ビジネスモデルのインスタンス
+     */
+    public static Employee convertTo(InsertEmployeeForm insertEmployeeForm) {
+        return new Employee(
+                null,
+                insertEmployeeForm.getNmEmployee(),
+                insertEmployeeForm.getKnEmployee(),
+                insertEmployeeForm.getMailAddress(),
+                insertEmployeeForm.getPassword(),
+                insertEmployeeForm.getAdminAuth(),
+                insertEmployeeForm.getIdDepartment()
+        );
+    }
 
-	public List<String> validateParameter() {
-		final String EMPLOYEE_NAME_NULL_BLANK = "社員名";
-		final String EMPLOYEE_KANA_NULL_BLANK = "社員名フリガナ";
-		final String MAIL_ADDRESS_NULL_BLANK = "メールアドレス";
-		final String MANAGEMENT_ERROR = "管理者権限指定";
-		final String DEPARTMENT_ID_NULL_BLANK = "所属部署";
+    /**
+     * 登録データのValidationを行う
+     *
+     * @return エラーが有った場合はエラー文言、無ければ空のリストが返る
+     */
+    public List<String> validateParameter() {
+        final String EMPLOYEE_NAME_NULL_BLANK = "社員名";
+        final String EMPLOYEE_KANA_NULL_BLANK = "社員名フリガナ";
+        final String MAIL_ADDRESS_NULL_BLANK = "メールアドレス";
+        final String MANAGEMENT_ERROR = "管理者権限指定";
+        final String DEPARTMENT_ID_NULL_BLANK = "所属部署";
 
-		List<String> error = new ArrayList<>();
+        List<String> error = new ArrayList<>();
 
-		if (isNullOrBlank(nmEmployee)) {
-			error.add(EMPLOYEE_NAME_NULL_BLANK);
-		}
-		if (isNullOrBlank(knEmployee)) {
-			error.add(EMPLOYEE_KANA_NULL_BLANK);
-		}
-		if (isNullOrBlank(mailAddress)) {
-			error.add(MAIL_ADDRESS_NULL_BLANK);
-		}
+        if (isNullOrBlank(nmEmployee)) {
+            error.add(EMPLOYEE_NAME_NULL_BLANK);
+        }
+        if (isNullOrBlank(knEmployee)) {
+            error.add(EMPLOYEE_KANA_NULL_BLANK);
+        }
+        if (isNullOrBlank(mailAddress)) {
+            error.add(MAIL_ADDRESS_NULL_BLANK);
+        }
 
-		checkPassword(password, passwordConfirm, error);
+        // パスワードが仕様を満たしているか確認
+        checkPassword(password, passwordConfirm, error);
 
-		if (adminAuth == null) {
-			error.add(MANAGEMENT_ERROR);
-		}
+        if (adminAuth == null) {
+            error.add(MANAGEMENT_ERROR);
+        }
 
-		if (idDepartment == null) {
-			error.add(DEPARTMENT_ID_NULL_BLANK);
-		}
+        if (idDepartment == null) {
+            error.add(DEPARTMENT_ID_NULL_BLANK);
+        }
 
-		return error;
+        return error;
 
-	}
+    }
 
 }

src/main/java/com/example/rhizome/app/presentation/form/LoginInfoForm.java

@@ -4,10 +4,20 @@ import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+/**
+ * ログインを試みる人を表現するモデルクラスです
+ */
+
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class LoginInfoForm {
-	private String mailAddress;
-	private String password;
+    /**
+     * メールアドレス
+     */
+    private String mailAddress;
+    /**
+     * パスワード
+     */
+    private String password;
 }

src/main/java/com/example/rhizome/app/presentation/form/LoginUserForm.java

@@ -1,7 +1,7 @@
 package com.example.rhizome.app.presentation.form;
 
-import com.example.rhizome.app.domain.model.LoginUser;
 
+import com.example.rhizome.app.domain.model.LoginUser;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
@@ -10,56 +10,104 @@ import lombok.NoArgsConstructor;
 @AllArgsConstructor
 @NoArgsConstructor
 public class LoginUserForm {
-	private Integer idEmployee;
-	private String nmEmployee;
-	private String knEmployee;
-	private String mailAddress;
-	private String password;
+    /**
+     * 社員ID
+     */
+    private Integer idEmployee;
+    /**
+     * 社員名
+     */
+    private String nmEmployee;
+    /**
+     * 社員名カナ
+     */
+    private String knEmployee;
+    /**
+     * メールアドレス
+     */
+    private String mailAddress;
+    /**
+     * パスワード
+     */
+    private String password;
 
-	private Integer adminAuth;
+    /**
+     * 管理者権限
+     */
+    private Integer adminAuth;
 
-	private Integer idDepartment;
+    /**
+     * 部署ID
+     */
+    private Integer idDepartment;
 
-	public static LoginUserForm convertFrom(LoginUser loginUser) {
-		return new LoginUserForm(
-				loginUser.getIdEmployee(),
-				loginUser.getNmEmployee(),
-				loginUser.getKnEmployee(),
-				loginUser.getMailAddress(),
-				loginUser.getPassword(),
-				loginUser.getAdminAuth(),
-				loginUser.getIdDepartment());
-	}
+    /**
+     * business 層の LoginUser クラスから画面用（presentation 層）の LoginUserForm に
+     * 変換します。
+     *
+     * @param loginUser business 層の LoginUser インスタンス
+     * @return クラスから画面用（presentation 層）の LoginUserForm
+     */
+    public static LoginUserForm convertFrom(LoginUser loginUser) {
+        return new LoginUserForm(
+                loginUser.getIdEmployee(),
+                loginUser.getNmEmployee(),
+                loginUser.getKnEmployee(),
+                loginUser.getMailAddress(),
+                loginUser.getPassword(),
+                loginUser.getAdminAuth(),
+                loginUser.getIdDepartment()
+        );
+    }
 
-	public static LoginUser convertTo(LoginUserForm loginUserForm) {
-		return new LoginUser(
-				loginUserForm.getIdEmployee(),
-				loginUserForm.getNmEmployee(),
-				loginUserForm.getKnEmployee(),
-				loginUserForm.getMailAddress(),
-				loginUserForm.getPassword(),
-				loginUserForm.getAdminAuth(),
-				loginUserForm.getIdDepartment());
-	}
+    /**
+     * 画面用（presentation 層）の LoginUserForm クラスから business 層の LoginUser クラスに
+     * 変換します。
+     *
+     * @param loginUserForm 画面用（presentation 層）の LoginUserForm インスタンス
+     * @return business 層の LoginUser インスタンス
+     */
+    public static LoginUser convertTo(LoginUserForm loginUserForm) {
+        return new LoginUser(
+                loginUserForm.getIdEmployee(),
+                loginUserForm.getNmEmployee(),
+                loginUserForm.getKnEmployee(),
+                loginUserForm.getMailAddress(),
+                loginUserForm.getPassword(),
+                loginUserForm.getAdminAuth(),
+                loginUserForm.getIdDepartment()
+        );
+    }
 
-	public static boolean checkParameter(LoginInfoForm loginInfoForm) {
-		if (null == loginInfoForm.getMailAddress()) {
-			return false;
-		}
+    /**
+     * 画面から渡ってきた必須の値が仕様を満たしているか確認
+     *
+     * @param loginInfoForm 画面から渡ってきた mailAddress, password を格納しているインスタンス
+     * @return true:仕様を満たしている , false:仕様を満たしていない
+     */
+    public static boolean checkParameter(LoginInfoForm loginInfoForm) {
+        if (null == loginInfoForm.getMailAddress()) {
+            return false;
+        }
 
-		if (loginInfoForm.getMailAddress().isBlank()) {
-			return false;
-		}
+        if (loginInfoForm.getMailAddress().isBlank()) {
+            return false;
+        }
 
-		if (null == loginInfoForm.getPassword()) {
-			return false;
-		}
+        if (null == loginInfoForm.getPassword()) {
+            return false;
+        }
 
-		return !loginInfoForm.getPassword().isBlank();
+        return !loginInfoForm.getPassword().isBlank();
 
-	}
+    }
 
-	public boolean isAdminUser() {
-		return getAdminAuth() == 1;
-	}
+    /**
+     * 管理者権限を持っているか確認
+     *
+     * @return true:管理者権限を持っている , false:管理者権限を持っていない
+     */
+    public boolean isAdminUser() {
+        return getAdminAuth() == 1;
+    }
 }

src/main/java/com/example/rhizome/app/presentation/form/MessageForm.java

@@ -4,9 +4,12 @@ import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+/**
+ * 画面に表示するエラーメッセージを管理するクラスです。
+ */
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class MessageForm {
-	private String message;
+    private String message;
 }

src/main/java/com/example/rhizome/app/presentation/form/SearchConditionEmployeeForm.java

@@ -1,37 +1,70 @@
 package com.example.rhizome.app.presentation.form;
 
 import com.example.rhizome.app.domain.model.SearchConditionEmployee;
-
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+/**
+ * 画面から渡ってきた検索条件をまとめ、再度画面に表示する為のクラス
+ */
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class SearchConditionEmployeeForm {
 
-	private Integer idEmployee;
-	private String nmEmployee;
-	private String knEmployee;
-	private String mailAddress;
-	private Integer idDepartment;
+    /**
+     * 社員ID
+     */
+    private Integer idEmployee;
+    /**
+     * 社員名
+     */
+    private String nmEmployee;
+    /**
+     * 社員名カナ
+     */
+    private String knEmployee;
+    /**
+     * メールアドレス
+     */
+    private String mailAddress;
+    /**
+     * 部署ID
+     */
+    private Integer idDepartment;
 
-	public static SearchConditionEmployeeForm convertFrom(SearchConditionEmployee searchConditionEmployee) {
-		return new SearchConditionEmployeeForm(
-				searchConditionEmployee.getIdEmployee(),
-				searchConditionEmployee.getNmEmployee(),
-				searchConditionEmployee.getKnEmployee(),
-				searchConditionEmployee.getMailAddress(),
-				searchConditionEmployee.getIdDepartment());
-	}
+    /**
+     * business 層の SearchConditionEmployee クラスから画面用（presentation 層）の SearchConditionEmployeeForm に
+     * 変換します。
+     *
+     * @param searchConditionEmployee business 層の SearchConditionEmployee インスタンス
+     * @return 画面用（presentation 層）の SearchConditionEmployeeForm インスタンス
+     */
+    public static SearchConditionEmployeeForm convertFrom(SearchConditionEmployee searchConditionEmployee) {
+        return new SearchConditionEmployeeForm(
+                searchConditionEmployee.getIdEmployee(),
+                searchConditionEmployee.getNmEmployee(),
+                searchConditionEmployee.getKnEmployee(),
+                searchConditionEmployee.getMailAddress(),
+                searchConditionEmployee.getIdDepartment()
+        );
+    }
 
-	public static SearchConditionEmployee convertTo(SearchConditionEmployeeForm searchConditionEmployeeForm) {
-		return new SearchConditionEmployee(
-				searchConditionEmployeeForm.getIdEmployee(),
-				searchConditionEmployeeForm.getNmEmployee(),
-				searchConditionEmployeeForm.getKnEmployee(),
-				searchConditionEmployeeForm.getMailAddress(),
-				searchConditionEmployeeForm.getIdDepartment());
-	}
+    /**
+     * 画面用（presentation 層）の SearchConditionEmployeeForm クラスから business 層の SearchConditionEmployee クラスに
+     * 変換します。
+     *
+     * @param searchConditionEmployeeForm 画面用（presentation 層）の SearchConditionEmployeeForm インスタンス
+     * @return business 層の SearchConditionEmployee インスタンス
+     */
+    public static SearchConditionEmployee convertTo(SearchConditionEmployeeForm searchConditionEmployeeForm) {
+        return new SearchConditionEmployee(
+                searchConditionEmployeeForm.getIdEmployee(),
+                searchConditionEmployeeForm.getNmEmployee(),
+                searchConditionEmployeeForm.getKnEmployee(),
+                searchConditionEmployeeForm.getMailAddress(),
+                searchConditionEmployeeForm.getIdDepartment()
+        );
+    }
 }

src/main/java/com/example/rhizome/app/presentation/form/UpdateEmployeeInfoForm.java

@@ -1,104 +1,192 @@
 package com.example.rhizome.app.presentation.form;
 
-import java.util.List;
-
 import com.example.rhizome.app.domain.model.Employee;
 import com.example.rhizome.app.domain.model.EmployeeInfo;
-
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+import java.util.List;
+
+/**
+ * 画面から渡ってきた更新内容をまとめ、再度画面に表示する為のクラス
+ */
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class UpdateEmployeeInfoForm {
 
-	private Integer idEmployee;
-	private String nmEmployee;
-	private String knEmployee;
-	private String mailAddress;
-	private String password;
-	private String passwordConfirm;
-	private Integer adminAuth;
-	private Integer idDepartment;
+    /**
+     * 社員ID
+     */
+    private Integer idEmployee;
+    /**
+     * 社員名
+     */
+    private String nmEmployee;
+    /**
+     * 社員名カナ
+     */
+    private String knEmployee;
+    /**
+     * メールアドレス
+     */
+    private String mailAddress;
+    /**
+     * パスワード
+     */
+    private String password;
+    /**
+     * パスワード確認用
+     */
+    private String passwordConfirm;
+    /**
+     * 管理者権限
+     */
+    private Integer adminAuth;
+    /**
+     * 部署ID
+     */
+    private Integer idDepartment;
 
-	public static UpdateEmployeeInfoForm convertFrom(EmployeeInfo employeeInfo) {
-		return new UpdateEmployeeInfoForm(
-				employeeInfo.getEmployee().getIdEmployee(),
-				employeeInfo.getEmployee().getNmEmployee(),
-				employeeInfo.getEmployee().getKnEmployee(),
-				employeeInfo.getEmployee().getMailAddress(),
-				employeeInfo.getEmployee().getPassword(),
-				null,
-				employeeInfo.getEmployee().getAdminAuth(),
-				employeeInfo.getDepartment().getIdDepartment());
-	}
+    /**
+     * business 層の EmployeeInfo クラスから画面用（presentation 層）の UpdateEmployeeInfoForm に
+     * 変換します。
+     *
+     * @param employeeInfo business 層の EmployeeInfo インスタンス
+     * @return 画面用（presentation 層）の UpdateEmployeeInfoForm インスタンス
+     */
+    public static UpdateEmployeeInfoForm convertFrom(EmployeeInfo employeeInfo) {
+        return new UpdateEmployeeInfoForm(
+                employeeInfo.getEmployee().getIdEmployee(),
+                employeeInfo.getEmployee().getNmEmployee(),
+                employeeInfo.getEmployee().getKnEmployee(),
+                employeeInfo.getEmployee().getMailAddress(),
+                employeeInfo.getEmployee().getPassword(),
+                null,
+                employeeInfo.getEmployee().getAdminAuth(),
+                employeeInfo.getDepartment().getIdDepartment()
+        );
+    }
 
-	public static List<UpdateEmployeeInfoForm> convertFrom(List<EmployeeInfo> employeeInfoList) {
-		return employeeInfoList.stream().map(UpdateEmployeeInfoForm::convertFrom).toList();
-	}
+    /**
+     * business 層の EmployeeInfo クラスから画面用（presentation 層）の UpdateEmployeeInfoForm に
+     * 変換します。（リスト版）
+     *
+     * @param employeeInfoList business 層の EmployeeInfo インスタンスのリスト
+     * @return 画面用（presentation 層）の UpdateEmployeeInfoForm インスタンスのリスト
+     */
+    public static List<UpdateEmployeeInfoForm> convertFrom(List<EmployeeInfo> employeeInfoList) {
+        return employeeInfoList.stream().map(UpdateEmployeeInfoForm::convertFrom).toList();
+    }
 
-	public static Employee convertTo(UpdateEmployeeInfoForm updateEmployeeInfoForm) {
-		return new Employee(
-				updateEmployeeInfoForm.getIdEmployee(),
-				updateEmployeeInfoForm.getNmEmployee(),
-				updateEmployeeInfoForm.getKnEmployee(),
-				updateEmployeeInfoForm.getMailAddress(),
-				updateEmployeeInfoForm.getPassword(),
-				updateEmployeeInfoForm.getAdminAuth(),
-				updateEmployeeInfoForm.getIdDepartment());
-	}
+    /**
+     * 画面用（presentation 層）の UpdateEmployeeInfoForm クラスから business 層の Employee クラスに
+     * 変換します。
+     *
+     * @param updateEmployeeInfoForm 画面用（presentation 層）の UpdateEmployeeInfoForm インスタンス
+     * @return business 層の Employee インスタンス
+     */
+    public static Employee convertTo(UpdateEmployeeInfoForm updateEmployeeInfoForm) {
+        return new Employee(
+                updateEmployeeInfoForm.getIdEmployee(),
+                updateEmployeeInfoForm.getNmEmployee(),
+                updateEmployeeInfoForm.getKnEmployee(),
+                updateEmployeeInfoForm.getMailAddress(),
+                updateEmployeeInfoForm.getPassword(),
+                updateEmployeeInfoForm.getAdminAuth(),
+                updateEmployeeInfoForm.getIdDepartment()
+        );
+    }
 
-	public static boolean hasErrorParameter(UpdateEmployeeInfoForm updateEmployeeInfoForm) {
+    /**
+     * 画面から渡ってきたパラメータのチェック
+     *
+     * @param updateEmployeeInfoForm 画面から渡ってきたパラメータ
+     * @return true: エラー無し　false:エラーあり（必須を満たしていない）
+     */
+    public static boolean hasErrorParameter(UpdateEmployeeInfoForm updateEmployeeInfoForm) {
 
-		boolean errorFlag = !isNullOrBlank(updateEmployeeInfoForm.getNmEmployee());
+        boolean errorFlag = !isNullOrBlank(updateEmployeeInfoForm.getNmEmployee());
 
-		if (!isNullOrBlank(updateEmployeeInfoForm.getKnEmployee())) {
-			errorFlag = true;
-		}
-		if (!isNullOrBlank(updateEmployeeInfoForm.getMailAddress())) {
-			errorFlag = true;
-		}
-		if (!isNullOrBlank(updateEmployeeInfoForm.getPassword())) {
-			errorFlag = true;
-		}
+        if (!isNullOrBlank(updateEmployeeInfoForm.getKnEmployee())) {
+            errorFlag = true;
+        }
+        if (!isNullOrBlank(updateEmployeeInfoForm.getMailAddress())) {
+            errorFlag = true;
+        }
+        if (!isNullOrBlank(updateEmployeeInfoForm.getPassword())) {
+            errorFlag = true;
+        }
 
-		return errorFlag;
-	}
 
-	public static String validatePassword(String password, String passwordConfirm) {
+        return errorFlag;
+    }
 
-		final String ERROR = "パスワードが一致していません";
+    /**
+     * パスワードの仕様チェック
+     * パスワードが仕様を満たしてないか確認
+     *
+     * @param password        更新対象のパスワード
+     * @param passwordConfirm 更新対象の確認用パスワード
+     * @return 空文字: エラー無し　それ以外:エラー内容
+     */
+    public static String validatePassword(String password, String passwordConfirm) {
 
-		if (areBothBlank(password, passwordConfirm)) {
-			return "";
-		}
+        final String ERROR = "パスワードが一致していません";
 
-		if (isEitherBlank(password, passwordConfirm)) {
-			return ERROR;
-		}
+        if (areBothBlank(password, passwordConfirm)) {
+            // どちらもnullまたは空白の場合はOK
+            return "";
+        }
 
-		if (!password.equals(passwordConfirm)) {
-			return ERROR;
-		}
-		return "";
+        // どちらかがnullまたは空白の場合のエラーハンドリング
+        if (isEitherBlank(password, passwordConfirm)) {
+            return ERROR;
+        }
 
-	}
+        // 値が異なった場合はエラーハンドリング
+        if (!password.equals(passwordConfirm)) {
+            return ERROR;
+        }
+        return "";
 
-	private static boolean isNullOrBlank(String str) {
-		if (null == str) {
-			return true;
-		}
-		return str.isBlank();
-	}
+    }
 
-	private static boolean areBothBlank(String password, String passwordConfirm) {
-		return (password == null || password.isBlank()) && (passwordConfirm == null || passwordConfirm.isBlank());
-	}
+    /**
+     * 仮引数を null or 空 判定する
+     *
+     * @param str 判定対象の文字列
+     * @return true:null or 空 false:null or 空 では無い
+     */
+    private static boolean isNullOrBlank(String str) {
+        if (null == str) {
+            return true;
+        }
+        return str.isBlank();
+    }
 
-	private static boolean isEitherBlank(String password, String passwordConfirm) {
-		return password == null || password.isBlank() || passwordConfirm == null || passwordConfirm.isBlank();
-	}
+    /**
+     * パスワードが今回更新対象に含まれているかチェック
+     *
+     * @param password        更新対象のパスワード
+     * @param passwordConfirm 更新対象の確認用パスワード
+     * @return true:どちらもnullまたは空白の場合 false:それ以外
+     */
+    private static boolean areBothBlank(String password, String passwordConfirm) {
+        return (password == null || password.isBlank()) && (passwordConfirm == null || passwordConfirm.isBlank());
+    }
+
+    /**
+     * パスワードが今回更新対象に含まれているかチェック　その2
+     *
+     * @param password        更新対象のパスワード
+     * @param passwordConfirm 更新対象の確認用パスワード
+     * @return true: 問題なし false:どちらかがnullまたは空白の場合
+     */
+    // どちらかがnullまたは空白の場合のエラーハンドリング
+    private static boolean isEitherBlank(String password, String passwordConfirm) {
+        return password == null || password.isBlank() || passwordConfirm == null || passwordConfirm.isBlank();
+    }
 
 }

src/main/java/com/example/rhizome/app/presentation/form/UpdatePersonalUserForm.java

@@ -2,101 +2,184 @@ package com.example.rhizome.app.presentation.form;
 
 import com.example.rhizome.app.domain.model.Employee;
 import com.example.rhizome.app.domain.model.LoginUser;
-
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+/**
+ * 個人情報更新画面のフォームクラスです。
+ */
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class UpdatePersonalUserForm {
-	private Integer idEmployee;
-	private String nmEmployee;
-	private String knEmployee;
-	private String mailAddress;
-	private String password;
-	private String passwordConfirm;
+    /**
+     * 社員ID
+     */
+    private Integer idEmployee;
+    /**
+     * 社員名
+     */
+    private String nmEmployee;
+    /**
+     * 社員名カナ
+     */
+    private String knEmployee;
+    /**
+     * メールアドレス
+     */
+    private String mailAddress;
+    /**
+     * パスワード
+     */
+    private String password;
+    /**
+     * パスワード確認用
+     */
+    private String passwordConfirm;
 
-	public static Employee convertTo(UpdatePersonalUserForm updatePersonalUserForm) {
-		return new Employee(
-				updatePersonalUserForm.getIdEmployee(),
-				updatePersonalUserForm.getNmEmployee(),
-				updatePersonalUserForm.getKnEmployee(),
-				updatePersonalUserForm.getMailAddress(),
-				updatePersonalUserForm.getPassword(),
-				null,
-				null);
-	}
 
-	public static UpdatePersonalUserForm convertFrom(Employee employee) {
-		return new UpdatePersonalUserForm(
-				employee.getIdEmployee(),
-				employee.getNmEmployee(),
-				employee.getKnEmployee(),
-				employee.getMailAddress(),
-				employee.getPassword(),
-				null);
-	}
+    /**
+     * 画面用（presentation 層）の UpdatePersonalUserForm クラスから business 層の Employee クラスに
+     * 変換します。
+     *
+     * @param updatePersonalUserForm 画面用（presentation 層）の UpdatePersonalUserForm インスタンス
+     * @return business 層の Employee インスタンス
+     */
+    public static Employee convertTo(UpdatePersonalUserForm updatePersonalUserForm) {
+        return new Employee(
+                updatePersonalUserForm.getIdEmployee(),
+                updatePersonalUserForm.getNmEmployee(),
+                updatePersonalUserForm.getKnEmployee(),
+                updatePersonalUserForm.getMailAddress(),
+                updatePersonalUserForm.getPassword(),
+                null,
+                null
+        );
+    }
 
-	public static UpdatePersonalUserForm convertFrom(LoginUser loginUser) {
-		return new UpdatePersonalUserForm(
-				loginUser.getIdEmployee(),
-				loginUser.getNmEmployee(),
-				loginUser.getKnEmployee(),
-				loginUser.getMailAddress(),
-				loginUser.getPassword(),
-				null);
-	}
+    /**
+     * business 層の Employee クラスから画面用（presentation 層）の UpdatePersonalUserForm に
+     * 変換します。（リスト版）
+     *
+     * @param employee business 層の employee インスタンスのリスト
+     * @return クラスから画面用（presentation 層）の UpdatePersonalUserForm インスタンスのリスト
+     */
+    public static UpdatePersonalUserForm convertFrom(Employee employee) {
+        return new UpdatePersonalUserForm(
+                employee.getIdEmployee(),
+                employee.getNmEmployee(),
+                employee.getKnEmployee(),
+                employee.getMailAddress(),
+                employee.getPassword(),
+                null
+        );
+    }
 
-	public static boolean hasErrorParameter(UpdatePersonalUserForm updatePersonalUserForm) {
+    /**
+     * business 層の Employee クラスから画面用（presentation 層）の UpdatePersonalUserForm に
+     * 変換します。（リスト版）
+     *
+     * @param loginUser business 層の loginUser インスタンスのリスト
+     * @return クラスから画面用（presentation 層）の UpdatePersonalUserForm インスタンスのリスト
+     */
+    public static UpdatePersonalUserForm convertFrom(LoginUser loginUser) {
+        return new UpdatePersonalUserForm(
+                loginUser.getIdEmployee(),
+                loginUser.getNmEmployee(),
+                loginUser.getKnEmployee(),
+                loginUser.getMailAddress(),
+                loginUser.getPassword(),
+                null
+        );
+    }
 
-		boolean errorFlag = !isNullOrBlank(updatePersonalUserForm.getNmEmployee());
+    /**
+     * 画面から渡ってきたパラメータのチェック
+     *
+     * @param updatePersonalUserForm 画面から渡ってきたパラメータ
+     * @return true: エラー無し　false:エラーあり（必須を満たしていない）
+     */
+    public static boolean hasErrorParameter(UpdatePersonalUserForm updatePersonalUserForm) {
 
-		if (!isNullOrBlank(updatePersonalUserForm.getKnEmployee())) {
-			errorFlag = true;
-		}
-		if (!isNullOrBlank(updatePersonalUserForm.getMailAddress())) {
-			errorFlag = true;
-		}
-		if (!isNullOrBlank(updatePersonalUserForm.getPassword())) {
-			errorFlag = true;
-		}
+        boolean errorFlag = !isNullOrBlank(updatePersonalUserForm.getNmEmployee());
 
-		return errorFlag;
-	}
+        if (!isNullOrBlank(updatePersonalUserForm.getKnEmployee())) {
+            errorFlag = true;
+        }
+        if (!isNullOrBlank(updatePersonalUserForm.getMailAddress())) {
+            errorFlag = true;
+        }
+        if (!isNullOrBlank(updatePersonalUserForm.getPassword())) {
+            errorFlag = true;
+        }
 
-	public static String validatePassword(String password, String passwordConfirm) {
 
-		final String ERROR = "パスワードが一致していません";
+        return errorFlag;
+    }
 
-		if (areBothBlank(password, passwordConfirm)) {
-			return "";
-		}
+    /**
+     * パスワードの仕様チェック
+     * パスワードが仕様を満たしてないか確認
+     *
+     * @param password        更新対象のパスワード
+     * @param passwordConfirm 更新対象の確認用パスワード
+     * @return 空文字: エラー無し　それ以外:エラー内容
+     */
+    public static String validatePassword(String password, String passwordConfirm) {
 
-		if (isEitherBlank(password, passwordConfirm)) {
-			return ERROR;
-		}
+        final String ERROR = "パスワードが一致していません";
 
-		if (!password.equals(passwordConfirm)) {
-			return ERROR;
-		}
-		return "";
+        if (areBothBlank(password, passwordConfirm)) {
+            // どちらもnullまたは空白の場合はOK
+            return "";
+        }
 
-	}
+        // どちらかがnullまたは空白の場合のエラーハンドリング
+        if (isEitherBlank(password, passwordConfirm)) {
+            return ERROR;
+        }
 
-	private static boolean isNullOrBlank(String str) {
-		if (null == str) {
-			return true;
-		}
-		return str.isBlank();
-	}
+        // 値が異なった場合はエラーハンドリング
+        if (!password.equals(passwordConfirm)) {
+            return ERROR;
+        }
+        return "";
 
-	private static boolean areBothBlank(String password, String passwordConfirm) {
-		return (password == null || password.isBlank()) && (passwordConfirm == null || passwordConfirm.isBlank());
-	}
+    }
 
-	private static boolean isEitherBlank(String password, String passwordConfirm) {
-		return password == null || password.isBlank() || passwordConfirm == null || passwordConfirm.isBlank();
-	}
+    /**
+     * 仮引数を null or 空 判定する
+     *
+     * @param str 判定対象の文字列
+     * @return true:null or 空 false:null or 空 では無い
+     */
+    private static boolean isNullOrBlank(String str) {
+        if (null == str) {
+            return true;
+        }
+        return str.isBlank();
+    }
+
+    /**
+     * パスワードが今回更新対象に含まれているかチェック
+     *
+     * @param password        更新対象のパスワード
+     * @param passwordConfirm 更新対象の確認用パスワード
+     * @return true:どちらもnullまたは空白の場合 false:それ以外
+     */
+    private static boolean areBothBlank(String password, String passwordConfirm) {
+        return (password == null || password.isBlank()) && (passwordConfirm == null || passwordConfirm.isBlank());
+    }
+
+    /**
+     * パスワードが今回更新対象に含まれているかチェック　その2
+     *
+     * @param password        更新対象のパスワード
+     * @param passwordConfirm 更新対象の確認用パスワード
+     * @return true: 問題なし false:どちらかがnullまたは空白の場合
+     */
+    private static boolean isEitherBlank(String password, String passwordConfirm) {
+        return password == null || password.isBlank() || passwordConfirm == null || passwordConfirm.isBlank();
+    }
 }

src/main/resources/application.properties

@@ -1,10 +1,3 @@
 spring.datasource.url=jdbc:mysql://localhost:3306/springdb
 spring.datasource.username=rezouser
 spring.datasource.password=Rezo_0000
-
-spring.jpa.hibernate.ddl-auto=update
-
-spring.jpa.properties.hibernate.format_sql=true
-spring.jpa.show-sql=true
-
-logging.level.org.hibernate.type.descriptor.sql=trace

src/main/resources/templates/insertDevelopmentInput.html

@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+
+<head>
+
+    <meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
+    <!-- 外部のスクリプトファイルを読み込む -->
+    <script th:src="@{/js/common.js}"></script>
+    <!-- CSSの読み込み -->
+    <link rel="stylesheet" th:href="@{/css/all.css}">
+    <link rel=stylesheet th:href="@{/css/style.css}" type="text/css">
+    <title>社員登録</title>
+</head>
+
+<body>
+<h1>
+    社員登録　　　
+
+</h1>
+
+<a href="showMenu">メニューに戻る</a>
+</body>
+</html>

src/main/resources/templates/menu.html

@@ -25,13 +25,25 @@
     <tr>
         <td><a class="menuClass" href="javascript:selectEmployeeSubmit()"><i class="fas fa-search"></i> 社員検索 </a>
         </td>
-        <td class="description">登録済みのユーザ一覧表示と</br>更新、削除を行います。</td>
+        <td class="description">登録済みのユーザ一覧表示と更新、削除を行います。</td>
     </tr>
 
     <tr>
         <td><a class="menuClass" href="javascript:insertEmployeeSubmit()"><i class="fas fa-plus"></i> 社員登録 </a></td>
         <td class="description">新規でユーザ追加を行います。</td>
     </tr>
+	
+	<tr>
+	    <td><a class="menuClass" href="javascript:selectDepartmentSubmit()"><i class="fas fa-search"></i> 部署検索 </a>
+	    </td>
+	    <td class="description">登録済みの部署一覧表示と更新、削除を行います。</td>
+	</tr>
+	
+	<tr>
+	    <td><a class="menuClass" href="javascript:insertDepartmentSubmit()"><i class="fas fa-plus"></i> 部署登録 </a>
+	    </td>
+	    <td class="description">新規で部署追加を行います。</td>
+	</tr>
 
 </table>
 </body>

src/main/resources/templates/selectDepartment.html

@@ -0,0 +1,111 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+
+<head>
+
+    <meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
+    <!-- 外部のスクリプトファイルを読み込む -->
+    <script th:src="@{/js/common.js}"></script>
+    <!-- CSSの読み込み -->
+    <link rel="stylesheet" th:href="@{/css/all.css}">
+    <link rel=stylesheet th:href="@{/css/style.css}" type="text/css">
+    <title>検索</title>
+
+</head>
+<body>
+<h1>
+	    検索条件入力　　　
+	    <div class="rightSection">
+	        <span class="loginInfo">ログイン者名：<span th:text="${session.loginUser.nmEmployee}"></span></span>
+	        <button class="logoutButton" onclick="logoutSubmit()">ログアウト</button>
+	    </div>
+</h1>
+<form action="selectDepartment"
+      method="post"
+      th:object="${departmentForm}">
+
+    <div class="msgBox error" th:if="${messageError} != null">
+        <span class="error" th:text="${messageError.message}"></span>
+    </div>
+    <table>
+        <tr>
+            <th class="header">部署ID</th>
+            <td>
+                <input placeholder="部署ID"
+                       th:field="*{idDepartment}"
+                       type="number"/>
+            </td>
+        </tr>
+        <tr>
+            <th class="header">部署名</th>
+            <td>
+                <input placeholder="部署名"
+                       th:field="*{nmDepartment}"
+                       type="text"/>部署名
+            </td>
+        </tr>
+        
+        <tr>
+            <td class="btnArea" colspan="2">
+                <input type="submit" value="検索"/>
+            </td>
+            <td class="btnArea" colspan="2">
+                <button onclick="clearInput()">クリア</button>
+            </td>
+        </tr>
+    </table>
+</form>
+<div class="header-spacing"></div>
+<a href="showMenu">メニューに戻る</a>
+<div class="header-spacing"></div>
+<h1><span>検索結果</span></h1>
+<div class="header-spacing"></div>
+<th:block th:if="${messageInfo != null}">
+    <script th:inline="javascript">
+        alert([[${messageInfo.message}]]);
+    </script>
+</th:block>
+<div class="header-spacing"></div>
+<th:block th:if="${departmentFormList != null and departmentFormList.size() > 0}">
+    <!-- 検索結果が1件以上ある場合 -->
+    <table class="table-grid table-striped table-hover">
+        <thead>
+        <tr>
+            <th style="width: 60px;">部署ID</th>
+            <th style="width: 100px;">部署名</th>
+            <th style="width: 150px;">操作</th>
+        </tr>
+        </thead>
+        <tbody>
+        <tr th:each="departmentFormList : ${departmentFormList}">
+            <td th:text="${departmentFormList.idDepartment}"></td>
+            <td th:text="${departmentFormList.nmDepartment}"></td>
+            <td>
+                <!-- 更新フォーム -->
+
+                <!-- 削除フォーム -->
+
+                
+            </td>
+        </tr>
+        </tbody>
+    </table>
+</th:block>
+<th:block th:if="${departmentFormList == null or departmentFormList.size() == 0}">
+    <!-- 検索結果が0件の場合 -->
+    検索結果はありません。
+</th:block>
+
+</body>
+<script type="text/javascript">
+
+    function clearInput() {
+        document.getElementById('idDepartment').value = '';
+        document.getElementById('nmDepartment').value = '';
+    }
+
+
+</script>
+
+
+</html>