提出物です

.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

@@ -60,82 +60,48 @@ public class EmployeeDAO {
 
 			this.stmt = con.prepareStatement(sql.toString());
 			rs = stmt.executeQuery();
-			//DBのカラムをリストに追加
 			while (rs.next()) {
 				EmployeeDTO dto = new EmployeeDTO();
-				dto.setEmpid(rs.getInt(ID_EMPLOYEE));
+				dto.setId_employee(rs.getInt("id_employee"));
-				dto.setName(rs.getString(NM_EMPLOYEE));
+				dto.setNm_employee(rs.getString("nm_employee"));
-				dto.setKana(rs.getString(KN_EMPLOYEE));
+				dto.setKn_employee(rs.getString("kn_employee"));
-				dto.setMail(rs.getString(MAIL_ADDRESS));
+				dto.setMail_address(rs.getString("mail_address"));
-				dto.setPass(rs.getString(PASSWORD));
+				dto.setPassword(rs.getString("password"));
-				dto.setDepid(rs.getInt(ID_DEPARTMENT));
+				dto.setId_department(rs.getInt("id_department"));
 				rtnList.add(dto);
 			}
 		} finally {
-			DbUtil.closeStatement(this.stmt);
+			DbUtil.closestatement(this.stmt);
 		}
 		return rtnList;
 	}
 
-	public List<EmployeeDTO> selectByld(int id) throws SQLException {
+	public List<EmployeeDTO> selectById(int id_employee) throws SQLException, ClassNotFoundException {
-		List<EmployeeDTO> rtnList = new ArrayList<>();
+		List<EmployeeDTO> rtnList2 = new ArrayList<>();
 		StringBuilder sql = new StringBuilder();
-		//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
 		sql.append(" SELECT ");
 		sql.append("    " + "*");
 		sql.append(" FROM ");
 		sql.append("    " + TBL_NAME);
-		sql.append(" WHERE ");
+		sql.append(" WHERE " + ID_EMPLOYEE+ "=?");
-		sql.append("    " + ID_EMPLOYEE);
-		sql.append("     =     ");
-		sql.append("    " + id);
-
 		try {
+
 			this.stmt = con.prepareStatement(sql.toString());
 			rs = stmt.executeQuery();
-			//DBのカラムをリストに追加
 			while (rs.next()) {
 				EmployeeDTO dto = new EmployeeDTO();
-				dto.setEmpid(rs.getInt(ID_EMPLOYEE));
+				dto.setId_employee(rs.getInt("id_employee"));
-				dto.setName(rs.getString(NM_EMPLOYEE));
+				dto.setNm_employee(rs.getString("nm_employee"));
-				dto.setKana(rs.getString(KN_EMPLOYEE));
+				dto.setKn_employee(rs.getString("kn_employee"));
-				dto.setMail(rs.getString(MAIL_ADDRESS));
+				dto.setMail_address(rs.getString("mail_address"));
-				dto.setPass(rs.getString(PASSWORD));
+				dto.setPassword(rs.getString("password"));
-				dto.setDepid(rs.getInt(ID_DEPARTMENT));
+				dto.setId_department(rs.getInt("id_department"));
-				rtnList.add(dto);
+				rtnList2.add(dto);
 			}
 		} finally {
-			DbUtil.closeStatement(this.stmt);
+			DbUtil.closestatement(this.stmt);
 		}
-		if (rtnList.size() == 0) {
+		return rtnList2;
-			System.out.println("入力された値で情報が見つかりませんでした");
-		}
-		return rtnList;
-
 	}
 
-	public void empDelete(int id) throws SQLException {
-		StringBuilder sql = new StringBuilder();
-		//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
-		sql.append(" DELETE ");
-		sql.append("    " + "*");
-		sql.append(" FROM ");
-		sql.append("    " + TBL_NAME);
-		sql.append(" WHERE ");
-		sql.append("    " + ID_EMPLOYEE);
-		sql.append("     =     ");
-		sql.append("    " + id);
-		try {
-			this.stmt = con.prepareStatement(sql.toString());
-			this.stmt.executeUpdate();
-			System.out.println("削除が完了しました");
-		} finally {
-			DbUtil.closeStatement(this.stmt);
-
-		}
-	}
-	public void emplnsert (String name, String kana, String mail, String pass, int id) {
-		StringBuilder sql = new StringBuilder();
-		
-	}
 }

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

@@ -0,0 +1,69 @@
+package com.rhizome.example.dto;
+
+public class EmployeeDTO {
+
+	private Integer id_employee;
+	private String nm_employee;
+	private String kn_employee;
+	private String mail_address;
+	private String password;
+	private Integer id_department;
+
+	public Integer getId_employee() {
+		return id_employee;
+	}
+
+	public void setId_employee(Integer id_employee) {
+		this.id_employee = id_employee;
+	}
+
+	public String getNm_employee() {
+		return nm_employee;
+	}
+
+	public void setNm_employee(String nm_employee) {
+		this.nm_employee = nm_employee;
+	}
+
+	public String getKn_employee() {
+		return kn_employee;
+	}
+
+	public void setKn_employee(String kn_employee) {
+		this.kn_employee = kn_employee;
+	}
+
+	public String getMail_address() {
+		return mail_address;
+	}
+
+	public void setMail_address(String mail_address) {
+		this.mail_address = mail_address;
+	}
+
+	public String getPassword() {
+		return password;
+	}
+
+	public void setPassword(String password) {
+		this.password = password;
+	}
+
+	public Integer getId_department() {
+		return id_department;
+	}
+
+	public void setId_department(Integer id_department) {
+		this.id_department = id_department;
+	}
+
+	public String toString() {
+		return id_employee + "\t"
+				+ nm_employee + "\t"
+				+ kn_employee + "\t"
+				+ mail_address + "\t"
+				+ password + "\t"
+				+ id_department;
+
+	}
+}

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

@@ -45,8 +45,6 @@ public class Main {
 	 * @throws SQLException
 	 */
 	public void start() throws ClassNotFoundException, SQLException {
-		Connection con = DbUtil.getConnection();
-		EmployeeDAO empDao = new EmployeeDAO(con);
 		System.out.println();
 		System.out.println("現在のメンテナンス対象テーブル：" + targetTableName(tblFlg));
 		System.out.println("1:検索 2:登録 3:更新 4:削除 9:テーブル切替 0:終了");
@@ -60,7 +58,6 @@ public class Main {
 		case "3":
 			break;
 		case "4":
-			empDelete();
 			break;
 		case "9":
 			return;
@@ -73,30 +70,6 @@ public class Main {
 		}
 	}
 
-	private void empDelete() throws SQLException {
-		Connection con = DbUtil.getConnection();
-		EmployeeDAO empDao = new EmployeeDAO(con);
-		try {
-			String strId = inputCheck("ID", true);
-			int id = Integer.parseInt(strId);
-			List<EmployeeDTO> empList = empDao.selectByld(id);
-			if (empList.isEmpty()) {
-			} else {
-				System.out.println("指定されたIDの情報を削除します？　Y/y");
-				System.out.println("Y/y以外の入力であればキャンセル");
-				Scanner sc = new Scanner(System.in);
-				String str = sc.nextLine();
-				if (str.equals("Y") || str.equals("y")) {
-					empDao.empDelete(id);
-				} else {
-					System.out.println("キャンセルしました");
-				}
-			}
-		} finally {
-			DbUtil.closeConnection(empDao.con);
-		}
-	}
-
 	/**
 	 * 社員テーブルから情報を検索する
 	 *
@@ -116,15 +89,14 @@ public class Main {
 				break;
 			case "2":
 				System.out.println("IDを入力してください");
-				int id = sc.nextInt();
+				
-				empList = empDao.selectByld(id);
+				empList = empDao.selectById(tblFlg);
 				break;
 			default:
 				return;
 			}
 			for (EmployeeDTO emp : empList) {
-				System.out.println(emp.getEmpid() + "\t" + emp.getName() + "\t" + emp.getKana() + "\t"
+				System.out.println(emp);
-						+ emp.getMail() + "\t" + emp.getPass() + "\t" + emp.getDepid());
 			}
 		} finally {
 			DbUtil.closeConnection(empDao.con);
@@ -158,7 +130,7 @@ public class Main {
 	 * @return
 	 */
 	public static String inputCheck(String titleName, boolean flg) {
-		String str;
+		String str = null;
 		while (true) {
 			System.out.println(titleName + "を入力してください");
 			str = sc.nextLine();

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

@@ -45,8 +45,8 @@ public class DbUtil {
 	 * 				  ※Connection生成には上記の定数を活用してください
 	 */
 	public static Connection getConnection() throws SQLException {
-			//データベースへの接続
+		//データベースの接続
-			con = DriverManager.getConnection(DB_URL, DB_USER ,DB_PASS);
+		con = DriverManager.getConnection(DB_URL, DB_USER, DB_PASS);
 		return con;
 	}
 
@@ -59,12 +59,14 @@ 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 ps) throws SQLException {
+
-		//DBステートメントのクローズ
+	public static void closestatement(PreparedStatement stmt) throws SQLException {
-		if (ps != null) {
+		if (!stmt.equals(null)) {
-				ps.close(); //DBステートメントをクローズ
+			//DBステートメントを閉じる
+			stmt.close();
 		}
 	}
+
 	/*
 	 * TODO 以下の仕様でメソッドを作成してください。
 	 *
@@ -75,10 +77,8 @@ public class DbUtil {
 	 * 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 {
-		//コネクションの切断
+		if (!con.equals(null)) {
-		if (con != null) {
+			con.close();
-				con.close(); //コネクション切断
-			}
 		}
 	}
-
+}