2段階目完了

.classpath

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="lib" path="lib/mysql-connector-java-8.0.23.jar"/>
+	<classpathentry kind="lib" path="実行例/DAO_Simple.jar"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

.gitignore

@@ -0,0 +1 @@
+/bin/

.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>em-jdbc</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.wst.validation.validationbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.wst.jsdt.core.jsNature</nature>
+	</natures>
+</projectDescription>

.settings/.jsdtscope

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.baseBrowserLibrary"/>
+	<classpathentry kind="src" path=""/>
+	<classpathentry kind="output" path=""/>
+</classpath>

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

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

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

@@ -0,0 +1 @@
+Global

src/com/rhizome/example/dao/EmployeeDAO.java

@@ -61,14 +61,14 @@ public class EmployeeDAO {
 			this.stmt = con.prepareStatement(sql.toString());
 			rs = stmt.executeQuery();
 			while (rs.next()) {
+				//インスタンス生成
 				EmployeeDTO dto = new EmployeeDTO();
-				dto.setIdEmployee(rs.getInt(ID_EMPLOYEE));
-				dto.setNmEmployee(rs.getString(NM_EMPLOYEE));
-				dto.setKnEmployee(rs.getString(KN_EMPLOYEE));
-				dto.setMailAddress(rs.getString(MAIL_ADDRESS));
-				dto.setPassword(rs.getString(PASSWORD));
-				dto.setIdDepartment(rs.getInt(ID_DEPARTMENT));
-
+				dto.setId_employee(rs.getInt("id_employee"));
+				dto.setNm_employee(rs.getString("nm_employee"));
+				dto.setKn_employee(rs.getString("kn_employee"));
+				dto.setMail_address(rs.getString("mail_address"));
+				dto.setPassword(rs.getString("password"));
+				dto.setId_department(rs.getInt("id_department"));
 				rtnList.add(dto);
 			}
 		} finally {
@@ -77,50 +77,4 @@ public class EmployeeDAO {
 		return rtnList;
 	}
 
-	public List<EmployeeDTO> selectById(int id) throws SQLException, ClassNotFoundException {
-		List<EmployeeDTO> rtnList = new ArrayList<>();
-		StringBuilder sql = new StringBuilder();
-		sql.append(" SELECT ");
-		sql.append(" * ");
-		sql.append(" FROM ");
-		sql.append(TBL_NAME);
-		sql.append(" WHERE ID_EMPLOYEE = ? ");
-		try {
-
-			this.stmt = con.prepareStatement(sql.toString());
-			this.stmt.setInt(1, id);
-			rs = this.stmt.executeQuery();
-			while (rs.next()) {
-				EmployeeDTO dto = new EmployeeDTO();
-				dto.setIdEmployee(rs.getInt(ID_EMPLOYEE));
-				dto.setNmEmployee(rs.getString(NM_EMPLOYEE));
-				dto.setKnEmployee(rs.getString(KN_EMPLOYEE));
-				dto.setMailAddress(rs.getString(MAIL_ADDRESS));
-				dto.setPassword(rs.getString(PASSWORD));
-				dto.setIdDepartment(rs.getInt(ID_DEPARTMENT));
-
-				rtnList.add(dto);
-			}
-		} finally {
-			DbUtil.closeStatement(this.stmt);
-		}
-		return rtnList;
-	}
-
-	//社員データ削除
-	public void empDelete(int id) throws SQLException {
-		StringBuilder sql = new StringBuilder();
-		sql.append(" DELETE ");
-		sql.append(" FROM ");
-		sql.append(TBL_NAME);
-		sql.append(" WHERE ID_EMPLOYEE = ? ");
-		try {
-			this.stmt = con.prepareStatement(sql.toString());
-			this.stmt.setInt(1, id);
-			this.stmt.executeUpdate();
-		} finally {
-			DbUtil.closeStatement(this.stmt);
-
-		}
-	}
 }

src/com/rhizome/example/dto/EmployeeDTO.java

@@ -1,43 +1,45 @@
 package com.rhizome.example.dto;
 
 public class EmployeeDTO {
-	private int idEmployee;
-	private String nmEmployee;
-	private String knEmployee;
-	private String mailAddress;
-	private String password;
-	private int idDepartment;
+	//フィールド宣言
+	private Integer id_employee;//社員ID
+	private String nm_employee;//社員名
+	private String kn_employee;//社員名カナ
+	private String mail_address;//メールアドレス
+	private String password;//パスワード
+	private Integer id_department;//部署ID
 
-	public int getIdEmployee() {
-		return idEmployee;
+	//getter/setter
+	public Integer getId_employee() {
+		return id_employee;
 	}
 
-	public void setIdEmployee(int idEmployee) {
-		this.idEmployee = idEmployee;
+	public void setId_employee(Integer id_employee) {
+		this.id_employee = id_employee;
 	}
 
-	public String getNmEmployee() {
-		return nmEmployee;
+	public String getNm_employee() {
+		return nm_employee;
 	}
 
-	public void setNmEmployee(String nmEmployee) {
-		this.nmEmployee = nmEmployee;
+	public void setNm_employee(String nm_employee) {
+		this.nm_employee = nm_employee;
 	}
 
-	public String getKnEmployee() {
-		return knEmployee;
+	public String getKn_employee() {
+		return kn_employee;
 	}
 
-	public void setKnEmployee(String knEmployee) {
-		this.knEmployee = knEmployee;
+	public void setKn_employee(String kn_employee) {
+		this.kn_employee = kn_employee;
 	}
 
-	public String getMailAddress() {
-		return mailAddress;
+	public String getMail_address() {
+		return mail_address;
 	}
 
-	public void setMailAddress(String mailAddress) {
-		this.mailAddress = mailAddress;
+	public void setMail_address(String mail_address) {
+		this.mail_address = mail_address;
 	}
 
 	public String getPassword() {
@@ -48,12 +50,12 @@ public class EmployeeDTO {
 		this.password = password;
 	}
 
-	public int getIdDepartment() {
-		return idDepartment;
+	public Integer getId_department() {
+		return id_department;
 	}
 
-	public void setIdDepartment(int idDepartment) {
-		this.idDepartment = idDepartment;
+	public void setId_department(Integer id_department) {
+		this.id_department = id_department;
 	}
 
 }

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

@@ -58,7 +58,6 @@ public class Main {
 		case "3":
 			break;
 		case "4":
-			empDelete();
 			break;
 		case "9":
 			return;
@@ -88,60 +87,17 @@ public class Main {
 			case "1":
 				empList = empDao.selectAll();
 				break;
-			case "2":
-				String id = inputCheck("ID", true);
-				empList = empDao.selectById(Integer.parseInt(id));
-				break;
 			default:
 				return;
 			}
-			if (empList.isEmpty()) {
-				System.out.println("入力された値で情報がみつかりませんでした");
-			} else {
-				for (EmployeeDTO emp : empList) {
-					System.out.println(
-							emp.getIdEmployee() + " "
-									+ emp.getNmEmployee() + " "
-									+ emp.getKnEmployee() + " "
-									+ emp.getMailAddress() + " "
-									+ emp.getPassword() + " "
-									+ emp.getIdDepartment());
-				}
+			for (EmployeeDTO emp : empList) {
+				System.out.println(emp);
 			}
-
 		} finally {
 			DbUtil.closeConnection(empDao.con);
 		}
 	}
 
-	//社員テーブルから情報を削除する
-	public static void empDelete()
-			throws ClassNotFoundException, SQLException {
-		Connection con = DbUtil.getConnection();
-		EmployeeDAO empDao = new EmployeeDAO(con);
-		String id = inputCheck("ID", true);
-
-		try {
-			List<EmployeeDTO> empList = empDao.selectById(Integer.parseInt(id));
-
-			if (empList.isEmpty()) {
-				System.out.println("入力されて値で情報がみつかりませんでした");
-			} else {
-				System.out.println("指定されたIDの情報を削除しますか? Y/y");
-				System.out.println("Y/y以外の入力であればキャンセル");
-
-				String confirm = sc.nextLine();
-
-				if (confirm.equalsIgnoreCase("y")) {
-					empDao.empDelete(Integer.parseInt(id));
-					System.out.println("削除が完了しました");
-				}
-			}
-		} finally {
-			DbUtil.closeConnection(con);
-		}
-	}
-
 	/**
 	 * フラグを判定し、テーブル名を取得する
 	 *

src/com/rhizome/example/util/DbUtil.java

@@ -44,11 +44,9 @@ public class DbUtil {
 	 * 				  生成されたConnectionを返却する
 	 * 				  ※Connection生成には上記の定数を活用してください
 	 */
-	public static Connection getConnection()
-			throws ClassNotFoundException, SQLException {
-		Class.forName(DB_DRIVER);
+	public static Connection getConnection() throws SQLException {
+		//データベースへの接続
 		con = DriverManager.getConnection(DB_URL, DB_USER, DB_PASS);
-
 		return con;
 	}
 
@@ -61,8 +59,8 @@ public class DbUtil {
 	 * 例外			：SQLException
 	 * 処理			：引数のDBステートメントがnullでない場合、そのDBステートメントをクローズする
 	 */
-	public static void closeStatement(PreparedStatement stmt)
-			throws SQLException {
+	public static void closeStatement(PreparedStatement stmt) throws SQLException {
+		//nullチェック
 		if (stmt != null) {
 			stmt.close();
 		}
@@ -77,11 +75,11 @@ public class DbUtil {
 	 * 例外			：SQLException
 	 * 処理			：引数のコネクションがnullでない場合、そのコネクションを切断する
 	 */
-	public static void closeConnection(Connection con)
-			throws SQLException {
+	public static void closeConnection(Connection con) throws SQLException {
+		//nullチェック
 		if (con != null) {
 			con.close();
+
 		}
 	}
-
 }