６段階目まで完了済

.classpath

@@ -0,0 +1,9 @@
+<?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="mysql-connector-j-8.0.32.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

@@ -12,7 +12,9 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Scanner;
 
+import com.rhizome.example.dto.EmployeeDTO;
 import com.rhizome.example.util.DbUtil;
 
 public class EmployeeDAO {
@@ -48,19 +50,25 @@ public class EmployeeDAO {
 	 * @throws SQLException
 	 * @throws ClassNotFoundException
 	 */
-	public List<String> selectAll() throws SQLException, ClassNotFoundException {
+	public List<EmployeeDTO> selectAll() throws SQLException, ClassNotFoundException {
-		List<String> rtnList = new ArrayList<>();
+		List<EmployeeDTO> rtnList = new ArrayList<>();
 		StringBuilder sql = new StringBuilder();
 		sql.append(" SELECT ");
 		sql.append("    " + "*");
 		sql.append(" FROM ");
 		sql.append("    " + TBL_NAME);
 		try {
-
 			this.stmt = con.prepareStatement(sql.toString());
 			rs = stmt.executeQuery();
 			while (rs.next()) {
-				rtnList.add(rs.getString(NM_EMPLOYEE));
+				EmployeeDTO employee = new EmployeeDTO();
+				employee.setIdEmployee(rs.getInt(ID_EMPLOYEE));
+				employee.setNmEmployee(rs.getString(NM_EMPLOYEE));
+				employee.setKnEmployee(rs.getString(KN_EMPLOYEE));
+				employee.setMailaddress(rs.getString(MAIL_ADDRESS));
+				employee.setPassword(rs.getString(PASSWORD));
+				employee.setIdDepartment(rs.getInt(ID_DEPARTMENT));
+				rtnList.add(employee);
 			}
 		} finally {
 			DbUtil.closeStatement(this.stmt);
@@ -68,4 +76,137 @@ public class EmployeeDAO {
 		return rtnList;
 	}
 
+	/**
+	 * 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全件取得する
+	 *
+	 * @return 検索結果
+	 * @throws SQLException
+	 * @throws ClassNotFoundException
+	 */
+	public List<EmployeeDTO> selectById(int idEmployee) 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 ");
+		sql.append("    " + ID_EMPLOYEE + " = " + "?");
+		try {
+			this.stmt = con.prepareStatement(sql.toString());
+			stmt.setInt(1,idEmployee);
+			rs = stmt.executeQuery();
+			int nRecords = 0;
+			while (rs.next()) {
+				EmployeeDTO employee = new EmployeeDTO();
+				employee.setIdEmployee(rs.getInt(ID_EMPLOYEE));
+				employee.setNmEmployee(rs.getString(NM_EMPLOYEE));
+				employee.setKnEmployee(rs.getString(KN_EMPLOYEE));
+				employee.setMailaddress(rs.getString(MAIL_ADDRESS));
+				employee.setPassword(rs.getString(PASSWORD));
+				employee.setIdDepartment(rs.getInt(ID_DEPARTMENT));
+				rtnList.add(employee);
+				nRecords++;
+			}
+			if (nRecords==0) {
+				System.out.println("入力された値で情報がみつかりませんでした");
+			}
+		} finally {
+			DbUtil.closeStatement(this.stmt);
+		}
+		return rtnList;
+	}
+
+	/**
+	 * 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
+	 *
+	 * @throws SQLException
+	 * @throws ClassNotFoundException
+	 */
+	public void empDelete(int idEmployee) throws SQLException, ClassNotFoundException {
+		if (selectById(idEmployee).size()!=0) {
+			StringBuilder sql = new StringBuilder();
+			sql.append(" DELETE FROM ");
+			sql.append("    " + TBL_NAME);
+			sql.append(" WHERE ");
+			sql.append("    " + ID_EMPLOYEE + " = " + "?");
+			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）");
+			Scanner sc = new Scanner(System.in);
+			String flag = sc.nextLine();
+			if (flag.equals("Y")||flag.equals("y")) {
+				try {
+					this.stmt = con.prepareStatement(sql.toString());
+					stmt.setInt(1,idEmployee);
+					stmt.executeUpdate();
+					System.out.println("削除が完了しました");
+				}  finally {
+					DbUtil.closeStatement(this.stmt);
+				}
+			}
+		} 
+	}
+
+	/**
+	 * 社員テーブルに指定された情報を新規登録する
+	 *
+	 * @throws SQLException
+	 * @throws ClassNotFoundException
+	 */
+	public void empInsert(String name, String kn, String mailaddress, String password, int idDepartment) throws SQLException, ClassNotFoundException {
+		StringBuilder sql = new StringBuilder();
+		sql.append(" INSERT INTO ");
+		sql.append("    " + TBL_NAME);
+		sql.append(" ("+NM_EMPLOYEE+", "+KN_EMPLOYEE+","+MAIL_ADDRESS+","+PASSWORD+","+ID_DEPARTMENT+") ");
+		sql.append(" VALUES ");
+		sql.append(" (?, ?, ?, ?, ?) ");
+		try {
+			this.stmt = con.prepareStatement(sql.toString());
+			stmt.setString(1,name);
+			stmt.setString(2,kn);
+			stmt.setString(3,mailaddress);
+			stmt.setString(4,password);
+			stmt.setInt(5,idDepartment);
+			stmt.executeUpdate();
+			System.out.println("登録が完了しました");
+		}  finally {
+			DbUtil.closeStatement(this.stmt);
+		}
+	}
+
+	/**
+	 * 社員テーブルの指定された社員IDに一致するデータを引数の内容に更新する
+	 *
+	 * @throws SQLException
+	 * @throws ClassNotFoundException
+	 */
+	public void empUpdate(int idEmployee, String name, String kn, String mailaddress, String password, int idDepartment) throws SQLException, ClassNotFoundException {
+		if (selectById(idEmployee).size()!=0) {
+			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());
+				stmt.setString(1,name);
+				stmt.setString(2,kn);
+				stmt.setString(3,mailaddress);
+				stmt.setString(4,password);
+				stmt.setInt(5,idDepartment);
+				stmt.setInt(6,idEmployee);
+				stmt.executeUpdate();
+				System.out.println("更新が完了しました");
+			}  finally {
+				DbUtil.closeStatement(this.stmt);
+			}
+		}
+	}
+
 }

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

@@ -0,0 +1,59 @@
+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;
+
+	public int getIdEmployee() {
+		return idEmployee;
+	}
+	public void setIdEmployee(int idEmployee) {
+		this.idEmployee = idEmployee;
+	}
+	public String getNmEmployee() {
+		return nmEmployee;
+	}
+	public void setNmEmployee(String nmEmployee) {
+		this.nmEmployee = nmEmployee;
+	}
+	public String getKnEmployee() {
+		return knEmployee;
+	}
+	public void setKnEmployee(String knEmployee) {
+		this.knEmployee = knEmployee;
+	}
+	public String getMailaddress() {
+		return mailaddress;
+	}
+	public void setMailaddress(String mailaddress) {
+		this.mailaddress = mailaddress;
+	}
+	public String getPassword() {
+		return password;
+	}
+	public void setPassword(String password) {
+		this.password = password;
+	}
+	public int getIdDepartment() {
+		return idDepartment;
+	}
+	public void setIdDepartment(int idDepartment) {
+		this.idDepartment = idDepartment;
+	}
+
+	@Override
+	public String toString() {
+		return this.getIdEmployee() + "	"
+			  +this.getNmEmployee() + "	"
+			  +this.getKnEmployee() + "	"
+			  +this.getMailaddress() + "	"
+			  +this.getPassword() + "	"
+			  +this.getIdDepartment();
+	}
+
+}

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

@@ -7,6 +7,7 @@ import java.util.List;
 import java.util.Scanner;
 
 import com.rhizome.example.dao.EmployeeDAO;
+import com.rhizome.example.dto.EmployeeDTO;
 import com.rhizome.example.util.DbUtil;
 
 /**
@@ -48,15 +49,33 @@ public class Main {
 		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");
 		String ope = sc.nextLine();
+		Connection con = DbUtil.getConnection();
+		EmployeeDAO empDao = new EmployeeDAO(con);
 		switch (ope) {
 		case "1":
 			empSelect();
 			break;
 		case "2":
+			empDao.empInsert(inputCheck("社員名", false),
+							 inputCheck("フリガナ", false),
+							 inputCheck("メールアドレス", false),
+							 inputCheck("パスワード", false),
+							 Integer.parseInt(inputCheck("部署ID", true)));
 			break;
 		case "3":
-			break;
+			int id = Integer.parseInt(inputCheck("ID", true));
+			if (empDao.selectById(id).size()==0) break;  // 社員IDの照合に失敗した場合は処理を抜ける
+			else {
+				empDao.empUpdate(id,
+								 inputCheck("社員名", false),
+								 inputCheck("フリガナ", false),
+								 inputCheck("メールアドレス", false),
+								 inputCheck("パスワード", false),
+								 Integer.parseInt(inputCheck("部署ID", true)));
+				break;
+			}
 		case "4":
+			empDao.empDelete(Integer.parseInt(inputCheck("ID", true)));
 			break;
 		case "9":
 			return;
@@ -76,7 +95,7 @@ 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);
 		System.out.println("1:全検索 2:条件検索 それ以外:戻る");
@@ -86,10 +105,13 @@ public class Main {
 			case "1":
 				empList = empDao.selectAll();
 				break;
+			case "2":
+				empList = empDao.selectById(Integer.parseInt(inputCheck("ID", true)));
+				break;
 			default:
 				return;
 			}
-			for (String emp : empList) {
+			for (EmployeeDTO emp : empList) {
 				System.out.println(emp);
 			}
 		} finally {

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

@@ -1,6 +1,9 @@
 package com.rhizome.example.util;
 
 import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
 
 public class DbUtil {
 	// 定数定義（共通）
@@ -41,7 +44,12 @@ 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);
+		// Connection : not null && 接続状態 → フィールドを戻す
+		if( !((con!=null)&&(con.isValid(1))) ) 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。
@@ -52,6 +60,9 @@ 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 {
+		if (stmt!=null) stmt.close();
+	}
 
 
 	/*
@@ -63,6 +74,9 @@ 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 {
+		if (con!=null) con.close();
+	}
 
 
 }