Stept 6 (UPDATE)

.classpath

@@ -1,8 +0,0 @@
-<?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

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

.project

@@ -1,23 +0,0 @@
-<?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

@@ -1,7 +0,0 @@
-<?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

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

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

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

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

@@ -53,7 +53,12 @@ public class EmployeeDAO {
 		List<EmployeeDTO> rtnList = new ArrayList<>();
 		StringBuilder sql = new StringBuilder();
 		sql.append(" SELECT ");
-		sql.append("    " + "*");
+		sql.append("    " + ID_EMPLOYEE + ",");
+		sql.append("    " + NM_EMPLOYEE + ",");
+		sql.append("    " + KN_EMPLOYEE + ",");
+		sql.append("    " + MAIL_ADDRESS + ",");
+		sql.append("    " + PASSWORD + ",");
+		sql.append("    " + ID_DEPARTMENT);
 		sql.append(" FROM ");
 		sql.append("    " + TBL_NAME);
 		try {
@@ -61,14 +66,15 @@ 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.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"));
+				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 ကို List ထဲသို့ ထည့်ရပါမည်
 				rtnList.add(dto);
 			}
 		} finally {
@@ -77,4 +83,117 @@ public class EmployeeDAO {
 		return rtnList;
 	}
 
+	//use selectById make the method 
+	public List<EmployeeDTO> selectById(int empId) throws SQLException, ClassNotFoundException {
+		//calling to DTO and new inout array
+		List<EmployeeDTO> rtnList = new ArrayList<>();
+		//(StringBuilder) ကို သုံးခြင်းသည် Code များကို ဖတ်ရလွယ်ကူစေရန်၊ ပြင်ဆင်ရလွယ်ကူစေရန်
+		StringBuilder sql = new StringBuilder();
+		//append မသုံးရင်စာ‌ကြောင်းပိုရှဉ္လို့ append နဲံရေး
+		sql.append(" SELECT ");
+		sql.append("    " + ID_EMPLOYEE + ",");
+		sql.append("    " + NM_EMPLOYEE + ",");
+		sql.append("    " + KN_EMPLOYEE + ",");
+		sql.append("    " + MAIL_ADDRESS + ",");
+		sql.append("    " + PASSWORD + ",");
+		sql.append("    " + ID_DEPARTMENT);
+		sql.append(" FROM ");
+		sql.append("    " + TBL_NAME);
+		sql.append(" WHERE ");
+		sql.append("    " + ID_EMPLOYEE + " = ? ");
+
+		try {
+			this.stmt = con.prepareStatement(sql.toString());
+			this.stmt.setInt(1, empId);
+			rs = 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;
+	}
+//Delete method 
+	public void empDelete(int empId) throws  ClassNotFoundException, SQLException {
+		StringBuilder sql = new StringBuilder();
+		sql.append(" DELETE FROM ");
+		sql.append("    " + TBL_NAME);
+		sql.append(" WHERE ");
+		sql.append("    " + ID_EMPLOYEE + " = ? ");
+//for check 
+		try {
+			this.stmt = con.prepareStatement(sql.toString());
+			this.stmt.setInt(1, empId);
+			this.stmt.executeUpdate();
+		} finally {
+			DbUtil.closeStatement(this.stmt);
+		}
+
+	}
+	public void empInsert (String nmemp, String knname,String mail, String pw, int deptId) throws  ClassNotFoundException, SQLException{
+		StringBuilder sql = new StringBuilder();
+		sql.append("INSERT INTO");
+		sql.append("    " + TBL_NAME);
+		sql.append(" ( ");
+		
+		sql.append("    " + NM_EMPLOYEE + ",");
+		sql.append("    " + KN_EMPLOYEE + ",");
+		sql.append("    " + MAIL_ADDRESS + ",");
+		sql.append("    " + PASSWORD + ",");
+		sql.append("    " + ID_DEPARTMENT);
+		sql.append(" ) ");
+		sql.append(" VALUES (?, ?, ?, ?, ?) ");
+	
+		try {
+			this.stmt = con.prepareStatement(sql.toString());
+			this.stmt.setString(1, nmemp);
+			this.stmt.setString(2, knname);
+			this.stmt.setString(3, mail);
+			this.stmt.setString(4, pw);
+			this.stmt.setInt(5, deptId);
+
+			this.stmt.executeUpdate();
+		} finally {
+			DbUtil.closeStatement(this.stmt);
+		}
+
+	}
+	public void empUpdate (String nmemp, String knname,String mail, String pw, int deptId,int empId) throws  ClassNotFoundException, SQLException{
+		StringBuilder sql = new StringBuilder();
+		sql.append("UPDATE ");
+		sql.append("    " + TBL_NAME);
+		sql.append(" SET ");
+		
+		sql.append("    " + NM_EMPLOYEE + " = ?, ");
+		sql.append("    " + KN_EMPLOYEE + " = ?, ");
+		sql.append("    " + MAIL_ADDRESS + " = ?, ");
+		sql.append("    " + PASSWORD + " = ?, ");
+		sql.append("    " + ID_DEPARTMENT + " = ? ");
+		sql.append(" WHERE ");
+		sql.append("    " + ID_EMPLOYEE + " = ? ");
+	
+		try {
+			this.stmt = con.prepareStatement(sql.toString());
+			this.stmt.setString(1, nmemp);
+			this.stmt.setString(2, knname);
+			this.stmt.setString(3, mail);
+			this.stmt.setString(4, pw);
+			this.stmt.setInt(5, deptId);
+			this.stmt.setInt(6, empId);
+
+			this.stmt.executeUpdate();
+		} finally {
+			DbUtil.closeStatement(this.stmt);
+		}
+
+	}
 }

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

@@ -1,61 +0,0 @@
-package com.rhizome.example.dto;
-
-public class EmployeeDTO {
-	//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
-
-	//getter/setter
-	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;
-	}
-
-}

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

@@ -54,10 +54,13 @@ public class Main {
 			empSelect();
 			break;
 		case "2":
+			empInsert();
 			break;
 		case "3":
+			empUpdate();
 			break;
 		case "4":
+			empDelete();
 			break;
 		case "9":
 			return;
@@ -70,6 +73,67 @@ public class Main {
 		}
 	}
 
+	private void empUpdate() throws ClassNotFoundException, SQLException{
+		// TODO 自動生成されたメソッド・スタブ
+		Connection con = DbUtil.getConnection();
+		EmployeeDAO empDao = new EmployeeDAO(con);
+
+		try {
+			// ID ရိုက်ထည့်ခိုင်းခြင်း
+			String strId = inputCheck("ID", true);
+			int id = Integer.parseInt(strId);
+
+			// ID ရှိမရှိ စစ်ဆေးခြင်း (selectById ကို သုံးပါ)
+			List<EmployeeDTO> empList = empDao.selectById(id);
+			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");
+				return;
+			}
+
+			// အချက်အလက် အသစ်များ တောင်းခံခြင်း
+			String name = inputCheck("社員名", false);
+			String kana = inputCheck("フリガナ", false);
+			String mail = inputCheck("メールアドレス", false);
+			String pass = inputCheck("パスワード", false);
+			
+			String strDeptId = inputCheck("部署ID", true);
+			int deptId = Integer.parseInt(strDeptId);
+
+			// DB ထဲသို့ ပြင်ဆင်ချက် ထည့်သွင်းခြင်း
+			empDao.empUpdate(name, kana, mail, pass, deptId,id);
+			System.out.println("更新が完了しました");
+
+		} finally {
+			DbUtil.closeConnection(empDao.con);
+		}
+	}
+		
+	
+
+	public static void empInsert() throws ClassNotFoundException, SQLException {
+		Connection con = DbUtil.getConnection();
+		EmployeeDAO empDao = new EmployeeDAO(con);
+
+		try {
+			// အချက်အလက်များ အသီးသီး တောင်းခံခြင်း (inputCheck ကို သုံးပါ)
+			String name = inputCheck("社員名", false);
+			String kana = inputCheck("フリガナ", false);
+			String mail = inputCheck("メールアドレス", false);
+			String pass = inputCheck("パスワード", false);
+			
+			// 部署ID အတွက် Numerical Check ဖြစ်သည့် true ထည့်ပါမည်
+			String strDeptId = inputCheck("部署ID", true);
+			int deptId = Integer.parseInt(strDeptId);
+
+			// DB ထဲသို့ ထည့်သွင်းခြင်း
+			empDao.empInsert(name, kana, mail, pass, deptId);
+			System.out.println("登録が完了しました");
+
+		} finally {
+			DbUtil.closeConnection(empDao.con);
+		}
+	}
+
 	/**
 	 * 社員テーブルから情報を検索する
 	 *
@@ -77,6 +141,7 @@ public class Main {
 	 * @throws SQLException
 	 */
 	public static void empSelect() throws ClassNotFoundException, SQLException {
+		//List<String> empList = new ArrayList<>();
 		List<EmployeeDTO> empList = new ArrayList<>();
 		Connection con = DbUtil.getConnection();
 		EmployeeDAO empDao = new EmployeeDAO(con);
@@ -85,19 +150,70 @@ public class Main {
 		try {
 			switch (select) {
 			case "1":
+				//empList = empDao.selectAll();
 				empList = empDao.selectAll();
 				break;
+			case "2":
+				// inputCheck 方法ကို သုံးပြီး ID ရိုက်ခိုင်းပါ (数値 check အတွက် true ထည့်ပါ)
+				String strId = inputCheck("ID", true);
+				int id = Integer.parseInt(strId);
+				empList = empDao.selectById(id);
+		;
+
 			default:
 				return;
 			}
+
+			// ရှာဖွေတွေ့ရှိခြင်း မရှိပါက
+			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");
+				return;
+			}
+
 			for (EmployeeDTO emp : empList) {
-				System.out.println(emp);
+				//for (String emp : empList) {
+				//System.out.println(emp);
+				System.out.println(emp.getIdEmployee() + "\t" +
+						emp.getNmEmployee() + "\t" +
+						emp.getKnEmployee() + "\t" +
+						emp.getMailAddress() + "\t" +
+						emp.getPassword() + "\t" +
+						emp.getIdDepartment());
 			}
 		} finally {
 			DbUtil.closeConnection(empDao.con);
 		}
 	}
 
+		public static void empDelete() throws ClassNotFoundException, SQLException {
+		Connection con = DbUtil.getConnection();
+		EmployeeDAO empDao = new EmployeeDAO(con);
+
+		try {
+			// ID ရိုက်ထည့်ခိုင်းခြင်း (inputCheck ကို သုံးပါ)
+			String strId = inputCheck("ID", true);
+			int id = Integer.parseInt(strId);
+			//System.out.println("IDを入力してください");
+
+			// ID ရှိမရှိ စစ်ဆေးခြင်း (selectById ကို သုံးပါ)
+			List<EmployeeDTO> empList = empDao.selectById(id);
+			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");
+				return;
+			}
+
+			// ဖျက်ရန် အတည်ပြုချက် (Confirmation) တောင်းခြင်း
+			System.out.println("指定されたIDの情報を削除します？ Y/y");
+			String confirm = sc.nextLine();
+			if ("Y".equalsIgnoreCase(confirm)) {
+				empDao.empDelete(id);
+				System.out.println("削除が完了しました");
+			}
+		}finally {
+			DbUtil.closeConnection(empDao.con);
+		}
+		}
+
 	/**
 	 * フラグを判定し、テーブル名を取得する
 	 *
@@ -147,4 +263,7 @@ public class Main {
 		}
 		return str;
 	}
+
+
+		
 }

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

@@ -42,14 +42,19 @@ public class DbUtil {
 	 * 例外			：ClassNotFoundException, SQLException
 	 * 処理			：JDBCドライバを読み込み後、DB接続する。
 	 * 				  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
+	 * 				  ※Connection生成には上記の定数を活用してくださ
 	 */
-	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);
+
+	public static Connection getConnection() throws ClassNotFoundException, SQLException {
+		//connection is null or not null and create new 
+		if (con == null || con.isClosed()) {
+			Class.forName(DB_DRIVER);
+			con = DriverManager.getConnection(DB_URL, DB_USER, DB_PASS);
+		}
 		return con;
 	}
 	
+	
 	/*
 	 * TODO 以下の仕様でメソッドを作成してください。
 	 *
@@ -60,10 +65,11 @@ public class DbUtil {
 	 * 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 {
-		//nullチェック
 		if (stmt != null) {
 			stmt.close();
+			
 		}
+	
 	}
 
 	/*
@@ -76,10 +82,10 @@ 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 {
-		//nullチェック
-		if (con != null) {
+		if(con != null) {
 			con.close();
 		
 		}
 	}
+
 }