Compare commits
1 Commits
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7cb48440b0 |
1
.gitignore
vendored
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1
.gitignore
vendored
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@@ -0,0 +1 @@
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/.metadata/
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11
.project
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11
.project
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>em-jdbc</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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</buildSpec>
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<natures>
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</natures>
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</projectDescription>
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Binary file not shown.
6
src/.classpath
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6
src/.classpath
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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
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<classpathentry kind="src" path=""/>
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<classpathentry kind="output" path=""/>
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</classpath>
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17
src/.project
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17
src/.project
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>src</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.jdt.core.javanature</nature>
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</natures>
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</projectDescription>
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1
src/com/rhizome/example/dao/.gitignore
vendored
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1
src/com/rhizome/example/dao/.gitignore
vendored
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@@ -0,0 +1 @@
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/EmployeeDAO.class
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@@ -13,7 +13,6 @@ import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.List;
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import com.rhizome.example.dto.EmployeeDTO;
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import com.rhizome.example.util.DbUtil;
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public class EmployeeDAO {
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@@ -49,8 +48,8 @@ public class EmployeeDAO {
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* @throws SQLException
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* @throws ClassNotFoundException
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*/
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public List<EmployeeDTO> selectAll() throws SQLException, ClassNotFoundException {
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List<EmployeeDTO> rtnList = new ArrayList<>();
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public List<String> selectAll() throws SQLException, ClassNotFoundException {
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List<String> rtnList = new ArrayList<>();
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StringBuilder sql = new StringBuilder();
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sql.append(" SELECT ");
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sql.append(" " + "*");
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@@ -61,14 +60,7 @@ public class EmployeeDAO {
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this.stmt = con.prepareStatement(sql.toString());
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rs = stmt.executeQuery();
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while (rs.next()) {
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EmployeeDTO dto = new EmployeeDTO();
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dto.setID_EMPLOYEE(rs.getInt("ID_EMPLOYEE"));
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dto.setNM_EMPLOYEE(rs.getString("NM_EMPLOYEE"));
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dto.setKN_EMPLOYEE(rs.getString("KN_EMPLOYEE"));
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dto.setMAIL_ADDRESS(rs.getString("MAIL_ADDRESS"));
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dto.setPASSWORD(rs.getString("PASSWORD"));
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dto.setID_DEPARTMENT(rs.getInt("ID_DEPARTMENT"));
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rtnList.add(dto);
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rtnList.add(rs.getString(NM_EMPLOYEE));
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}
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} finally {
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DbUtil.closeStatement(this.stmt);
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@@ -76,42 +68,4 @@ public class EmployeeDAO {
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return rtnList;
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}
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//社員テーブルから指定された社員IDに一致するデータを取得し、DTOに設定の上、リスト形式で戻
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public List<EmployeeDTO> selectById(int id_employee) throws SQLException {
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List<EmployeeDTO> list = new ArrayList<>();
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String sql = "SELECT * FROM employee WHERE ID_EMPLOYEE = ?";
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try {
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this.stmt = con.prepareStatement(sql.toString());
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this.stmt.setInt(1, id_employee);
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this.rs = this.stmt.executeQuery();
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while (rs.next()) {
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EmployeeDTO dto = new EmployeeDTO();
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dto.setID_EMPLOYEE(rs.getInt("ID_EMPLOYEE"));
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dto.setNM_EMPLOYEE(rs.getString("NM_EMPLOYEE"));
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dto.setKN_EMPLOYEE(rs.getString("KN_EMPLOYEE"));
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dto.setMAIL_ADDRESS(rs.getString("MAIL_ADDRESS"));
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dto.setPASSWORD(rs.getString("PASSWORD"));
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dto.setID_DEPARTMENT(rs.getInt("ID_DEPARTMENT"));
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list.add(dto);
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}
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} finally {
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DbUtil.closeStatement(this.stmt);
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}
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return list;
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}
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// 社員テーブルから指定された社員IDに一致するデータを削除する
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public void empDelete(int id_employee) throws SQLException {
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String sql = "DELETE FROM employee WHERE ID_EMPLOYEE = ?";
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try {
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this.stmt = con.prepareStatement(sql);
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this.stmt.setInt(1, id_employee);
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this.stmt.executeUpdate();
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} finally {
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DbUtil.closeStatement(this.stmt);
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}
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}
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}
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1
src/com/rhizome/example/main/.gitignore
vendored
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1
src/com/rhizome/example/main/.gitignore
vendored
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@@ -0,0 +1 @@
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/Main.class
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@@ -7,7 +7,6 @@ import java.util.List;
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import java.util.Scanner;
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import com.rhizome.example.dao.EmployeeDAO;
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import com.rhizome.example.dto.EmployeeDTO;
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import com.rhizome.example.util.DbUtil;
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/**
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@@ -58,7 +57,6 @@ public class Main {
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case "3":
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break;
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case "4":
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empDelete();
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break;
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case "9":
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return;
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@@ -78,7 +76,7 @@ public class Main {
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* @throws SQLException
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*/
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public static void empSelect() throws ClassNotFoundException, SQLException {
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List<EmployeeDTO> empList = new ArrayList<>();
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List<String> empList = new ArrayList<>();
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Connection con = DbUtil.getConnection();
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EmployeeDAO empDao = new EmployeeDAO(con);
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System.out.println("1:全検索 2:条件検索 それ以外:戻る");
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@@ -88,15 +86,10 @@ public class Main {
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case "1":
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empList = empDao.selectAll();
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break;
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case "2":
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String inputId = inputCheck("検索する社員ID", true);
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int input = Integer.parseInt(inputId);
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empList = empDao.selectById(input);
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break;
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default:
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return;
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}
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for (EmployeeDTO emp : empList) {
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for (String emp : empList) {
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System.out.println(emp);
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}
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} finally {
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@@ -104,43 +97,6 @@ public class Main {
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}
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}
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public static void empDelete() throws ClassNotFoundException, SQLException {
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Connection con = DbUtil.getConnection();
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EmployeeDAO empDao = new EmployeeDAO(con);
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try {
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System.out.println("IDを入力してください");
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String input = sc.nextLine();
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// 空文字が入力された場合
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if (input.strip().isEmpty()) {
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System.out.println("入力された値で情報がみつかりませんでした");
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return;
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}
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int inputId = Integer.parseInt(input.strip());
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List<EmployeeDTO> empList = empDao.selectById(inputId);
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// 検索結果が存在しないIDの場合
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if (empList.isEmpty()) {
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System.out.println("入力された値で情報がみつかりませんでした");
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return;
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}
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System.out.println("指定されたIDの情報を削除します? Y/y");
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System.out.println("(Y/y以外の入力であればキャンセル)");
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String confilm = sc.nextLine();
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// 検索結果が存在した場合
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if ("Y".equalsIgnoreCase(confilm)) {
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empDao.empDelete(inputId);
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System.out.println("社員ID" + input + "のデータを削除しました");
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} else {
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System.out.println("削除をキャンセルしました");
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}
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} catch (NumberFormatException e) {
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System.out.println("入力された値で情報がみつかりませんでした");
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} finally {
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DbUtil.closeConnection(empDao.con);
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}
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}
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/**
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* フラグを判定し、テーブル名を取得する
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*
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1
src/com/rhizome/example/util/.gitignore
vendored
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1
src/com/rhizome/example/util/.gitignore
vendored
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@@ -0,0 +1 @@
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/DbUtil.class
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@@ -44,10 +44,10 @@ public class DbUtil {
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* 生成されたConnectionを返却する
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* ※Connection生成には上記の定数を活用してください
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*/
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public static Connection getConnection() throws ClassNotFoundException, SQLException {
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Class.forName(DB_DRIVER);
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return con = DriverManager.getConnection(DB_URL, DB_USER, DB_PASS);
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public static Connection getConnection() throws SQLException {
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//データベースへの接続
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con = DriverManager.getConnection(DB_URL, DB_USER, DB_PASS);
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return con;
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}
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/*
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@@ -60,10 +60,10 @@ public class DbUtil {
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* 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
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*/
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public static void closeStatement(PreparedStatement stmt) throws SQLException {
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//nullチェック
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if (stmt != null) {
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stmt.close();
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}
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}
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/*
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@@ -76,9 +76,10 @@ public class DbUtil {
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* 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
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*/
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public static void closeConnection(Connection con) throws SQLException {
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//nullチェック
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if (con != null) {
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con.close();
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}
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}
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}
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}
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}
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Reference in New Issue
Block a user