10/30 9-1まで完了

10/29 追加課題 8-3まで完了
10/29 6段階完了
2026-10-30 17:02:38 +09:00 · 2026-10-29 15:56:31 +09:00 · 2026-10-29 10:28:59 +09:00 · 2026-10-28 16:56:46 +09:00
7 changed files with 1245 additions and 226 deletions
--- a/sql/CreateTable-MySQL.sql
+++ b/sql/CreateTable-MySQL.sql
@@ -37,4 +37,3 @@ INSERT INTO department (nm_department) VALUES ('経理部');
 INSERT INTO department (nm_department) VALUES ('システム開発事業部');
 INSERT INTO department (nm_department) VALUES ('教育事業部');
 INSERT INTO department (nm_department) VALUES ('営業企画部');
-
--- a/src/com/rhizome/example/dao/DepartmentDAO.java
+++ b/src/com/rhizome/example/dao/DepartmentDAO.java
@@ -0,0 +1,243 @@
+/*
+ * EmployeeDAO.java
+ *   作成	IT-College	2020
+ *------------------------------------------------------------
+ * Copyright(c) Rhizome Inc. All Rights Reserved.
+ */
+package com.rhizome.example.dao;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+import com.rhizome.example.dto.DepartmentDTO;
+import com.rhizome.example.util.DbUtil;
+
+public class DepartmentDAO {
+	private static final String TBL_NAME = "department";
+	private static final String ID_DEPARTMENT = "id_department";
+	private static final String NM_DEPARTMENT = "nm_department";
+
+	/** DBコネクション */
+	public Connection con;
+	/** DBステートメント */
+	PreparedStatement stmt;
+	/** 検索結果 */
+	ResultSet rs;
+
+	/**
+	 * インスタンス生成時DBコネクション
+	 *
+	 * @throws ClassNotFoundException
+	 * @throws SQLException
+	 */
+	public DepartmentDAO(Connection con) {
+		this.con = con;
+	}
+
+	/**
+	 * 社員テーブルの情報を全件取得する
+	 *
+	 * @return 検索結果
+	 * @throws SQLException
+	 * @throws ClassNotFoundException
+	 */
+	public List<DepartmentDTO> selectAll() throws SQLException, ClassNotFoundException {
+		List<DepartmentDTO> 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()) {
+				DepartmentDTO dto = new DepartmentDTO();
+
+				dto.setIdDepartment(rs.getInt(ID_DEPARTMENT));
+				dto.setNmDepartment(rs.getString(NM_DEPARTMENT));
+				rtnList.add(dto);
+			}
+		} finally {
+			DbUtil.closeStatement(this.stmt);
+		}
+		return rtnList;
+	}
+
+	//部署ID検索
+	public List<DepartmentDTO> selectById(int id) throws SQLException {
+		//戻り値用リスト
+		List<DepartmentDTO> rtnList = new ArrayList<>();
+		//SQL作成
+		StringBuilder sql = new StringBuilder();
+		sql.append(" SELECT * ");
+		sql.append(" FROM department ");
+		sql.append(" WHERE id_department = ? ");
+
+		try {
+			//PreparedStatement生成
+			stmt = con.prepareStatement(sql.toString());
+			//部署IDを設定
+			stmt.setInt(1, id);
+			//SQL実行
+			rs = stmt.executeQuery();
+			//検索結果をDTOへ格納
+			while (rs.next()) {
+				//DTO生成
+				DepartmentDTO dto = new DepartmentDTO();
+				//検索結果をDTOへセット
+				dto.setIdDepartment( rs.getInt(ID_DEPARTMENT));
+				dto.setNmDepartment( rs.getString(NM_DEPARTMENT));
+
+				//リストへ追加
+				rtnList.add(dto);
+			}
+
+		} finally {
+
+			DbUtil.closeStatement(stmt);
+		}
+		//検索結果を返却
+		return rtnList;
+	}
+	
+	//部署名検索
+	public List<DepartmentDTO> selectByName(String name) throws SQLException {
+	    //戻り値用リスト
+	    List<DepartmentDTO> rtnList = new ArrayList<>();
+	    //SQL作成
+	    StringBuilder sql = new StringBuilder();
+
+	    sql.append(" SELECT * ");
+	    sql.append(" FROM department ");
+	    sql.append(" WHERE nm_department = ? ");
+
+	    try {
+	        //PreparedStatement生成
+	        stmt = con.prepareStatement(sql.toString());
+	        //部署名を設定
+	        stmt.setString(1, name);
+	        //SQL実行
+	        rs = stmt.executeQuery();
+	        //検索結果をDTOへ格納
+	        while (rs.next()) {
+	            //DTO生成
+	            DepartmentDTO dto =  new DepartmentDTO();
+	            //検索結果をDTOへセット
+	            dto.setIdDepartment(rs.getInt(ID_DEPARTMENT));
+	            dto.setNmDepartment(rs.getString(NM_DEPARTMENT));
+
+	            //リストへ追加
+	            rtnList.add(dto);
+	        }
+
+	    } finally {
+
+	        DbUtil.closeStatement(stmt);
+	    }
+
+	    //検索結果を返却
+	    return rtnList;
+	}
+
+	//部署情報削除
+	public void deptDelete(int id) throws SQLException {
+		//SQL作成
+		StringBuilder sql = new StringBuilder();
+		sql.append(" DELETE ");
+		sql.append(" FROM ");
+		sql.append("    " + TBL_NAME);
+		sql.append(" WHERE ");
+		sql.append("    " + ID_DEPARTMENT + " = ?");
+
+		try {
+			//PreparedStatement生成
+			stmt = con.prepareStatement(sql.toString());
+			//値設定
+			stmt.setInt(1, id);
+			//SQL実行
+			stmt.executeUpdate();
+
+		} finally {
+
+			DbUtil.closeStatement(stmt);
+		}
+	}
+
+	//部署情報登録
+	public void deptInsert(
+			String departmentName)
+					throws SQLException {
+		//SQL作成
+		StringBuilder sql = new StringBuilder();
+
+		sql.append(" INSERT INTO department ");
+		sql.append(" ( ");
+		sql.append(" nm_department ");
+		sql.append(" ) ");
+		sql.append(" VALUES ");
+		sql.append(" (?) ");
+
+		try {
+
+			//PreparedStatement生成
+			stmt = con.prepareStatement(sql.toString());
+			//値設定
+			stmt.setString(1, departmentName);
+			//SQL実行
+			stmt.executeUpdate();
+
+		} finally {
+
+			DbUtil.closeStatement(stmt);
+		}
+	}
+
+	//部署情報更新
+	public void deptUpdate(
+			int id,
+			String departmentName)
+					throws SQLException {
+
+		//SQL作成
+		StringBuilder sql = new StringBuilder();
+
+		sql.append(" UPDATE department ");
+		sql.append(" SET ");
+		sql.append(" nm_department = ? ");
+		sql.append(" WHERE id_department = ? ");
+
+		try {
+
+			//PreparedStatement生成
+			stmt = con.prepareStatement(sql.toString());
+			//値設定
+			stmt.setString(1, departmentName);
+			stmt.setInt(2, id);
+
+			//SQL実行
+			stmt.executeUpdate();
+
+		} finally {
+
+			//Statement切断
+			DbUtil.closeStatement(stmt);
+		}
+	}
+
+	//部署ID存在確認
+	public boolean existsDepartment(int idDepartment)
+			throws SQLException {
+
+		List<DepartmentDTO> deptList = selectById(idDepartment);
+
+		return deptList.size() > 0;
+	}
+
+}
+
--- a/src/com/rhizome/example/dao/EmployeeDAO.java
+++ b/src/com/rhizome/example/dao/EmployeeDAO.java
@@ -24,6 +24,8 @@ public class EmployeeDAO {
 	private static final String MAIL_ADDRESS = "mail_address";
 	private static final String PASSWORD = "password";
 	private static final String ID_DEPARTMENT = "id_department";
+	private static final String NM_DEPARTMENT = "nm_department";
+	

 	/** DBコネクション */
 	public Connection con;
@@ -53,23 +55,31 @@ public class EmployeeDAO {
 		List<EmployeeDTO> rtnList = new ArrayList<>();
 		StringBuilder sql = new StringBuilder();
 		sql.append(" SELECT ");
-		sql.append("    " + "*");
-		sql.append(" FROM ");
-		sql.append("    " + TBL_NAME);
+		sql.append(" employee.id_employee ");
+		sql.append(" ,employee.nm_employee ");
+		sql.append(" ,employee.kn_employee ");
+		sql.append(" ,employee.mail_address ");
+		sql.append(" ,employee.password ");
+		sql.append(" ,employee.id_department ");
+		sql.append(" ,department.nm_department ");
+		sql.append(" FROM employee ");
+		sql.append(" INNER JOIN department ");
+		sql.append(" ON employee.id_department = department.id_department ");
 		try {

 			this.stmt = con.prepareStatement(sql.toString());
 			rs = stmt.executeQuery();
 			while (rs.next()) {
-				EmployeeDTO emp = new EmployeeDTO();
-				emp.setId(rs.getInt("id_employee"));
-                emp.setName(rs.getString("nm_employee"));
-                emp.setKana(rs.getString("kn_employee"));
-                emp.setEmail(rs.getString("mail_address"));
-                emp.setPass(rs.getString("password"));
-                emp.setIdDep(rs.getInt("id_department"));
+				EmployeeDTO dto = new EmployeeDTO();

-                rtnList.add(emp);
+				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.setNmDepartment(rs.getString(NM_DEPARTMENT));
+				rtnList.add(dto);
 			}
 		} finally {
 			DbUtil.closeStatement(this.stmt);
@@ -77,114 +87,370 @@ public class EmployeeDAO {
 		return rtnList;
 	}

-	//指定されたIDの社員データを取得する
-	public  List<EmployeeDTO> selectById(int id_employee)throws SQLException, ClassNotFoundException{
+	//社員ID検索
+	public List<EmployeeDTO> selectById(int id) throws SQLException {
+		//戻り値用リスト
 		List<EmployeeDTO> rtnList = new ArrayList<>();
+		//SQL作成
 		StringBuilder sql = new StringBuilder();
 		sql.append(" SELECT ");
-		sql.append("    " + "*");
-		sql.append(" FROM ");
-		sql.append("    " + TBL_NAME);
-		sql.append(" WHERE ");
-		sql.append(" ID_EMPLOYEE = ?");
+		sql.append(" employee.id_employee ");
+		sql.append(" ,employee.nm_employee ");
+		sql.append(" ,employee.kn_employee ");
+		sql.append(" ,employee.mail_address ");
+		sql.append(" ,employee.password ");
+		sql.append(" ,employee.id_department ");
+		sql.append(" ,department.nm_department ");
+		sql.append(" FROM employee ");
+		sql.append(" INNER JOIN department ");
+		sql.append(" ON employee.id_department = department.id_department ");
+		sql.append(" WHERE employee.id_employee = ? ");

 		try {
-			this.stmt = con.prepareStatement(sql.toString());
-			this.stmt.setInt(1,id_employee );
+			//PreparedStatement生成
+			stmt = con.prepareStatement(sql.toString());
+			//社員IDを設定
+			stmt.setInt(1, id);
+			//SQL実行
 			rs = stmt.executeQuery();
+			//検索結果をDTOへ格納
 			while (rs.next()) {
-				EmployeeDTO emp = new EmployeeDTO();
-				emp.setId(rs.getInt("id_employee"));
-                emp.setName(rs.getString("nm_employee"));
-                emp.setKana(rs.getString("kn_employee"));
-                emp.setEmail(rs.getString("mail_address"));
-                emp.setPass(rs.getString("password"));
-                emp.setIdDep(rs.getInt("id_department"));
+				//DTO生成
+				EmployeeDTO dto = new EmployeeDTO();
+				//検索結果をDTOへセット
+				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.setNmDepartment(rs.getString(NM_DEPARTMENT));

-                rtnList.add(emp);
+				//リストへ追加
+				rtnList.add(dto);
 			}
-		}finally {
-			DbUtil.closeStatement(this.stmt);
+
+		} finally {
+
+			DbUtil.closeStatement(stmt);
 		}
+		//検索結果を返却
 		return rtnList;
 	}
 	
-	//指定された社員のデータを削除する
-	public  void empDelete(int id_employee)throws SQLException, ClassNotFoundException{
-		//SQL文の作成
-		StringBuilder sql = new StringBuilder();
-		sql.append(" DELETE ");
-		sql.append("    ");
-		sql.append(" FROM ");
-		sql.append("    " + TBL_NAME);
-		sql.append(" WHERE ");
-		sql.append(" ID_EMPLOYEE = ?");
+	// 社員名検索
+	public List<EmployeeDTO> selectByName(String name) throws SQLException {
+	    //戻り値用リスト
+	    List<EmployeeDTO> rtnList = new ArrayList<>();
+	    //SQL作成
+	    StringBuilder sql = new StringBuilder();

-		try {
-			//SQL文の組み立て結果を保存
-			this.stmt = con.prepareStatement(sql.toString());
-			//?に代入
-			this.stmt.setInt(1,id_employee );
-			//削除命令
-			stmt.executeUpdate();
-	}finally {
-		DbUtil.closeStatement(this.stmt);
-	}
-}
+	    sql.append(" SELECT ");
+	    sql.append(" employee.id_employee ");
+	    sql.append(" ,employee.nm_employee ");
+	    sql.append(" ,employee.kn_employee ");
+	    sql.append(" ,employee.mail_address ");
+	    sql.append(" ,employee.password ");
+	    sql.append(" ,employee.id_department ");
+	    sql.append(" ,department.nm_department ");
+	    sql.append(" FROM employee ");
+	    sql.append(" INNER JOIN department ");
+	    sql.append(" ON employee.id_department = department.id_department ");
+	    sql.append(" WHERE employee.nm_employee = ? ");

-	public  void empInsert(String name, String kana, String email, 
-			String password, Integer idDep)throws SQLException, ClassNotFoundException{
-		StringBuilder sql = new StringBuilder();
-		sql.append(" INSERT ");
-		sql.append("    " + " INTO ");
-		sql.append("    " + TBL_NAME);
-		sql.append(" ( ");
-		sql.append("    " + NM_EMPLOYEE + ", " + KN_EMPLOYEE + ", " +
-		MAIL_ADDRESS + ", " + PASSWORD + ", " + ID_DEPARTMENT);
-		sql.append(" ) ");
+	    try {

-		sql.append(" VALUES ");
-		sql.append("    ( ?, ?, ?, ?, ?)  "); 
+	        //PreparedStatement生成
+	        stmt = con.prepareStatement(sql.toString());

-		try {
-			this.stmt = con.prepareStatement(sql.toString());
-			this.stmt.setString(1,name );
-			this.stmt.setString(2,kana );
-			this.stmt.setString(3,email );
-			this.stmt.setString(4,password );
-			this.stmt.setInt(5,idDep );
-			stmt.executeUpdate();
-		}finally {
-			DbUtil.closeStatement(this.stmt);
-		}
+	        //社員名を設定
+	        stmt.setString(1, name);
+
+	        //SQL実行
+	        rs = stmt.executeQuery();
+
+	        //検索結果をDTOへ格納
+	        while (rs.next()) {
+
+	            //DTO生成
+	            EmployeeDTO dto = new EmployeeDTO();
+
+	            //検索結果をDTOへセット
+	            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.setNmDepartment(rs.getString(NM_DEPARTMENT));
+
+	            //リストへ追加
+	            rtnList.add(dto);
+	        }
+
+	    } finally {
+
+	        DbUtil.closeStatement(stmt);
+	    }
+
+	    //検索結果を返却
+	    return rtnList;
 	}
 	
-	public void empUpdate(Integer id, String name, String kana, String email, 
-			String password, Integer idDep)throws SQLException, ClassNotFoundException{
-		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 + "= ?");
+	//フリガナ検索
+	public List<EmployeeDTO> selectByKana(String kana) throws SQLException {
+	    //戻り値用リスト
+	    List<EmployeeDTO> rtnList = new ArrayList<>();
+	    //SQL作成
+	    StringBuilder sql = new StringBuilder();

-		try {
-			this.stmt = con.prepareStatement(sql.toString());
-			this.stmt.setString(1,name );
-			this.stmt.setString(2,kana );
-			this.stmt.setString(3,email );
-			this.stmt.setString(4,password );
-			this.stmt.setInt(5,idDep );
-			this.stmt.setInt(6, id);
-			stmt.executeUpdate();
-		}finally {
-			DbUtil.closeStatement(this.stmt);
-		}
+	    sql.append(" SELECT ");
+	    sql.append(" employee.id_employee ");
+	    sql.append(" ,employee.nm_employee ");
+	    sql.append(" ,employee.kn_employee ");
+	    sql.append(" ,employee.mail_address ");
+	    sql.append(" ,employee.password ");
+	    sql.append(" ,employee.id_department ");
+	    sql.append(" ,department.nm_department ");
+	    sql.append(" FROM employee ");
+	    sql.append(" INNER JOIN department ");
+	    sql.append(" ON employee.id_department = department.id_department ");
+	    sql.append(" WHERE employee.kn_employee = ? ");
+
+	    try {
+	        //PreparedStatement生成
+	        stmt = con.prepareStatement(sql.toString());
+	        //フリガナ設定
+	        stmt.setString(1, kana);
+	        //SQL実行
+	        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));
+	            dto.setNmDepartment(rs.getString(NM_DEPARTMENT));
+
+	            rtnList.add(dto);
+	        }
+
+	    } finally {
+
+	        DbUtil.closeStatement(stmt);
+	    }
+
+	    return rtnList;
+	}
+	
+	//メールアドレス検索
+	public List<EmployeeDTO> selectByMail(String mail) throws SQLException {
+	    List<EmployeeDTO> rtnList = new ArrayList<>();
+	    StringBuilder sql = new StringBuilder();
+
+	    sql.append(" SELECT ");
+	    sql.append(" employee.id_employee ");
+	    sql.append(" ,employee.nm_employee ");
+	    sql.append(" ,employee.kn_employee ");
+	    sql.append(" ,employee.mail_address ");
+	    sql.append(" ,employee.password ");
+	    sql.append(" ,employee.id_department ");
+	    sql.append(" ,department.nm_department ");
+	    sql.append(" FROM employee ");
+	    sql.append(" INNER JOIN department ");
+	    sql.append(" ON employee.id_department = department.id_department ");
+	    sql.append(" WHERE employee.mail_address = ? ");
+
+	    try {
+
+	        stmt = con.prepareStatement(sql.toString());
+	        stmt.setString(1, mail);
+	        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));
+	            dto.setNmDepartment(rs.getString(NM_DEPARTMENT));
+
+	            rtnList.add(dto);
+	        }
+
+	    } finally {
+
+	        DbUtil.closeStatement(stmt);
+	    }
+
+	    return rtnList;
+	}
+	
+	//部署名検索
+
+	public List<EmployeeDTO> selectByDepartment(String department) throws SQLException {
+	    List<EmployeeDTO> rtnList = new ArrayList<>();
+	    StringBuilder sql = new StringBuilder();
+
+	    sql.append(" SELECT ");
+	    sql.append(" employee.id_employee ");
+	    sql.append(" ,employee.nm_employee ");
+	    sql.append(" ,employee.kn_employee ");
+	    sql.append(" ,employee.mail_address ");
+	    sql.append(" ,employee.password ");
+	    sql.append(" ,employee.id_department ");
+	    sql.append(" ,department.nm_department ");
+	    sql.append(" FROM employee ");
+	    sql.append(" INNER JOIN department ");
+	    sql.append(" ON employee.id_department = department.id_department ");
+	    sql.append(" WHERE department.nm_department = ? ");
+
+	    try {
+
+	        stmt = con.prepareStatement(sql.toString());
+	        stmt.setString(1, department);
+	        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));
+	            dto.setNmDepartment(rs.getString(NM_DEPARTMENT));
+
+	            rtnList.add(dto);
+	        }
+
+	    } finally {
+
+	        DbUtil.closeStatement(stmt);
+	    }
+
+	    return rtnList;
+	}
+	
+	//社員情報削除
+	public void empDelete(int id) throws SQLException {
+	    //SQL作成
+	    StringBuilder sql = new StringBuilder();
+	    sql.append(" DELETE ");
+	    sql.append(" FROM ");
+	    sql.append("    " + TBL_NAME);
+	    sql.append(" WHERE ");
+	    sql.append("    " + ID_EMPLOYEE + " = ?");
+
+	    try {
+	        //PreparedStatement生成
+	        stmt = con.prepareStatement(sql.toString());
+	        //値設定
+	        stmt.setInt(1, id);
+	        //SQL実行
+	        stmt.executeUpdate();
+
+	    } finally {
+
+	        DbUtil.closeStatement(stmt);
+	    }
+	}
+	
+	//社員情報登録
+	public void empInsert(
+	        String name,
+	        String kana,
+	        String mail,
+	        String password,
+	        int departmentId)
+	        throws SQLException {
+	    //SQL作成
+	    StringBuilder sql = new StringBuilder();
+
+	    sql.append(" INSERT INTO employee ");
+	    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 ");
+	    sql.append(" (?, ?, ?, ?, ?) ");
+
+	    try {
+
+	        //PreparedStatement生成
+	        stmt = con.prepareStatement(sql.toString());
+	        //値設定
+	        stmt.setString(1, name);
+	        stmt.setString(2, kana);
+	        stmt.setString(3, mail);
+	        stmt.setString(4, password);
+	        stmt.setInt(5, departmentId);
+
+	        //SQL実行
+	        stmt.executeUpdate();
+
+	    } finally {
+
+	        DbUtil.closeStatement(stmt);
+	    }
+	}
+	
+	//社員情報更新
+	public void empUpdate(
+	        int id,
+	        String name,
+	        String kana,
+	        String mail,
+	        String password,
+	        int departmentId)
+	        throws SQLException {
+
+	    //SQL作成
+	    StringBuilder sql = new StringBuilder();
+
+	    sql.append(" UPDATE employee ");
+	    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 id_employee = ? ");
+
+	    try {
+
+	        //PreparedStatement生成
+	        stmt = con.prepareStatement(sql.toString());
+	        //値設定
+	        stmt.setString(1, name);
+	        stmt.setString(2, kana);
+	        stmt.setString(3, mail);
+	        stmt.setString(4, password);
+	        stmt.setInt(5, departmentId);
+	        stmt.setInt(6, id);
+
+	        // SQL実行
+	        stmt.executeUpdate();
+
+	    } finally {
+
+	        // Statement切断
+	        DbUtil.closeStatement(stmt);
+	    }
 	}

 }
--- a/src/com/rhizome/example/dto/DepartmentDTO.java
+++ b/src/com/rhizome/example/dto/DepartmentDTO.java
@@ -0,0 +1,23 @@
+package com.rhizome.example.dto;
+
+public class DepartmentDTO {
+
+	private Integer idDepartment;
+	private String nmDepartment;
+
+	public Integer getIdDepartment() {
+		return idDepartment;
+	}
+
+	public void setIdDepartment(Integer idDepartment) {
+		this.idDepartment = idDepartment;
+	}
+
+	public String getNmDepartment() {
+		return nmDepartment;
+	}
+
+	public void setNmDepartment(String nmDepartment) {
+		this.nmDepartment = nmDepartment;
+	}
+}
--- a/src/com/rhizome/example/dto/EmployeeDTO.java
+++ b/src/com/rhizome/example/dto/EmployeeDTO.java
@@ -1,47 +1,59 @@
 package com.rhizome.example.dto;

 public class EmployeeDTO {
-	private Integer id;
-    private String name;
-    private String kana;
-    private String email;
-    private String pass;
-    private Integer idDep;

-	public Integer getId() {
-		return id;
+	private Integer idEmployee;
+	private String nmEmployee;
+	private String knEmployee;
+	private String mailAddress;
+	private String password;
+	private Integer idDepartment;
+	private String nmDepartment;
+
+
+	public Integer getIdEmployee() {
+		return idEmployee;
 	}
-	public void setId(Integer id) {
-		this.id = id;
+	public void setIdEmployee(Integer idEmployee) {
+		this.idEmployee = idEmployee;
 	}
-	public String getName() {
-		return name;
+	public String getNmEmployee() {
+		return nmEmployee;
 	}
-	public void setName(String name) {
-		this.name = name;
+	public void setNmEmployee(String nmEmployee) {
+		this.nmEmployee = nmEmployee;
 	}
-	public String getKana() {
-		return kana;
+	public String getKnEmployee() {
+		return knEmployee;
 	}
-	public void setKana(String kana) {
-		this.kana = kana;
+	public void setKnEmployee(String knEmployee) {
+		this.knEmployee = knEmployee;
 	}
-	public String getEmail() {
-		return email;
+	public String getMailAddress() {
+		return mailAddress;
 	}
-	public void setEmail(String email) {
-		this.email = email;
+	public void setMailAddress(String mailAddress) {
+		this.mailAddress = mailAddress;
 	}
-	public String getPass() {
-		return pass;
+	public String getPassword() {
+		return password;
 	}
-	public void setPass(String pass) {
-		this.pass = pass;
+	public void setPassword(String password) {
+		this.password = password;
 	}
-	public Integer getIdDep() {
-		return idDep;
+	public Integer getIdDepartment() {
+		return idDepartment;
 	}
-	public void setIdDep(Integer idDep) {
-		this.idDep = idDep;
+	public void setIdDepartment(Integer idDepartment) {
+		this.idDepartment = idDepartment;
 	}
+	
+	public String getNmDepartment() {
+	    return nmDepartment;
+	}
+	
+	public void setNmDepartment(String nmDepartment) {
+	    this.nmDepartment = nmDepartment;
+	}
+
 }
--- a/src/com/rhizome/example/main/Main.java
+++ b/src/com/rhizome/example/main/Main.java
@@ -6,7 +6,9 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Scanner;

+import com.rhizome.example.dao.DepartmentDAO;
 import com.rhizome.example.dao.EmployeeDAO;
+import com.rhizome.example.dto.DepartmentDTO;
 import com.rhizome.example.dto.EmployeeDTO;
 import com.rhizome.example.util.DbUtil;

@@ -51,18 +53,51 @@ public class Main {
 		String ope = sc.nextLine();
 		switch (ope) {
 		case "1":
-			empSelect();
+			//社員テーブル
+			if (tblFlg == 0) {
+				empSelect();
+
+				//部署テーブル
+			} else {
+				deptSelect();
+			}
 			break;
 		case "2":
-			empInsert();
+			//社員テーブル
+			if (tblFlg == 0) {
+				empInsert();
+
+				//部署テーブル
+			} else {
+				deptInsert();
+			}
 			break;
 		case "3":
-			empUpdate();
+			//社員テーブル
+			if (tblFlg == 0) {
+				empUpdate();
+
+				//部署テーブル
+			} else {
+				deptUpdate();
+			}
 			break;
 		case "4":
-			empDelete();
+			//社員テーブル
+			if (tblFlg == 0) {
+				empDelete();
+
+				//部署テーブル
+			} else {
+				deptDelete();
+			}
 			break;
 		case "9":
+			if (tblFlg == 0) {
+				tblFlg = 1;
+			} else {
+				tblFlg = 0;
+			}		
 			return;
 		case "0":
 			System.out.println("システムを終了します");
@@ -90,26 +125,137 @@ public class Main {
 			case "1":
 				empList = empDao.selectAll();
 				break;
+
 			case "2":
-				String strId =inputCheck("ID", true);
-				int ID = Integer.parseInt(strId);
-				empList = empDao.selectById(ID);
-				break;
+			    //検索項目選択
+				System.out.println("1:ID 2:社員名 3:フリガナ 4:メールアドレス 5:部署名");
+			    String condition = sc.nextLine();
+			    switch (condition) {
+
+			    //ID検索
+			    case "1":
+			        String id = inputCheck("ID", true);
+			        empList = empDao.selectById(Integer.parseInt(id));
+
+			        break;
+
+			    //社員名検索
+			    case "2":
+			        String name = inputCheck("社員名", false);
+			        empList = empDao.selectByName(name);
+
+			        break;
+			        
+			        //フリガナ検索
+			    case "3":
+			        String kana = inputCheck("フリガナ", false);
+			        empList = empDao.selectByKana(kana);
+
+			        break;
+
+			    //メールアドレス検索
+			    case "4":
+			        String mail = inputCheck("メールアドレス", false);
+			        empList = empDao.selectByMail(mail);
+
+			        break;
+
+			    //部署名検索
+			    case "5":
+			        String department = inputCheck("部署名", false);
+			        empList = empDao.selectByDepartment(department);
+
+			        break;
+
+			    default:
+
+			        return;
+			    }
+
+			    break;
+
 			default:
 				return;
 			}
-			if(empList.isEmpty()) {
+
+			if (empList.size() == 0) {
 				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.getId() + "\t" + emp.getName() + "\t" + 
-					emp.getKana() + "\t" + emp.getEmail() + "\t" + emp.getPass() + "\t" + emp.getIdDep());
+				return;
 			}
+
+			//最大文字数取得
+			int maxName = 0;
+			int maxKana = 0;
+			int maxMail = 0;
+			int maxPassword = 0;
+			int maxDepartment = 0;
+
+			for (EmployeeDTO emp : empList) {
+
+				if (getDisplayLength(emp.getNmEmployee()) > maxName) {
+					maxName = getDisplayLength(emp.getNmEmployee());
+				}
+
+				if (getDisplayLength(emp.getKnEmployee()) > maxKana) {
+					maxKana = getDisplayLength(emp.getKnEmployee());
+				}
+
+				if (getDisplayLength(emp.getMailAddress()) > maxMail) {
+					maxMail = getDisplayLength(emp.getMailAddress());
+				}
+
+				if (getDisplayLength(emp.getPassword()) > maxPassword) {
+					maxPassword = getDisplayLength(emp.getPassword());
+				}
+
+				if (getDisplayLength(emp.getNmDepartment())
+						> maxDepartment) {
+					maxDepartment = getDisplayLength(emp.getNmDepartment());
+				}
+			}
+
+
+
+			for (EmployeeDTO emp : empList) {
+
+				System.out.println(
+						adjust(String.valueOf(emp.getIdEmployee()),10)
+						+ adjust(emp.getNmEmployee(), maxName + 5)
+						+ adjust(emp.getKnEmployee(), maxKana + 5)
+						+ adjust(emp.getMailAddress(), maxMail + 5)
+						+ adjust(emp.getPassword(), maxPassword + 5)
+						+ adjust(emp.getNmDepartment(), maxDepartment + 5));
 			}
 		} finally {
 			DbUtil.closeConnection(empDao.con);
 		}
 	}
+	//表示幅取得
+	//半角=1
+	//全角=2
+	public static int getDisplayLength(String str) {
+		int length = 0;
+		for (char c : str.toCharArray()) {
+			//ASCIIコードで算出
+			if (c <= 127) {
+				length += 1;
+			} else {
+				length += 2;
+			}
+		}
+		return length;
+	}
+
+
+	//指定文字数まで空白を追加
+	public static String adjust(String str, int length) {
+		StringBuilder sb = new StringBuilder(str);
+
+		while (getDisplayLength(sb.toString()) < length) {
+			sb.append(" ");
+		}
+		return sb.toString();
+	}

 	/**
 	 * フラグを判定し、テーブル名を取得する
@@ -161,80 +307,400 @@ public class Main {
 		return str;
 	}

+	//更新用入力
+	//Enterのみの場合は現在値を返す
+	public static String inputUpdate(
+			String titleName,
+			String currentValue) {
+
+		System.out.println(
+				titleName
+				+ "を入力してください"
+				+ "（現在値：" + currentValue + "）");
+
+		String str = sc.nextLine();
+
+		//Enterのみの場合は現在値を返却
+		if (str.trim().length() == 0) {
+			return currentValue;
+		}
+
+		return str;
+	}
+
+	//社員情報を削除する
 	public static void empDelete() throws ClassNotFoundException, SQLException {
-		//リスト作成
-		List<EmployeeDTO> empList = new ArrayList<>();
 		//DB接続
 		Connection con = DbUtil.getConnection();
-		//DAOインスタンス生成
 		EmployeeDAO empDao = new EmployeeDAO(con);
+
 		try {
-			//入力された文字列をdelIdに保存
-			String delId =inputCheck("ID", true);
-			//入力された文字列を整数に変換して保存
-			int ID = Integer.parseInt(delId);
-			//入力されたIDに一致するデータを保存
-			empList = empDao.selectById(ID);
-			//リストが空＝一致なし
-			if(empList.isEmpty()) {
+			//削除対象ID入力
+			String strId = inputCheck("ID", true);
+			int id = Integer.parseInt(strId);
+
+			//入力されたID確認
+			List<EmployeeDTO> empList =  empDao.selectById(id);
+			//データが存在しない場合
+			if (empList.size() == 0) {
 				System.out.println("入力された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？ Y/y");
-				//削除の同意受付
-				String agr = sc.nextLine();
-				//同意が得られたら
-				if("Y".equals(agr) || "y".equals(agr)) {
-					//削除メソッド実行し削除
-					empDao.empDelete(ID);
-					System.out.println("削除が完了しました");
-				}
+
+				return;
 			}
-		}finally {
+
+			//削除確認メッセージ表示
+			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 answer = sc.nextLine();
+
+			//Yまたはyが入力された場合のみ削除
+			if ("Y".equals(answer) || "y".equals(answer)) {
+				//社員情報削除
+				empDao.empDelete(id);
+
+				System.out.println("削除が完了しました");
+			}
+
+		} finally {
+
 			DbUtil.closeConnection(empDao.con);
 		}
 	}

+	//社員情報登録
 	public static void empInsert() throws ClassNotFoundException, SQLException {
+
+		//DB接続
 		Connection con = DbUtil.getConnection();
 		EmployeeDAO empDao = new EmployeeDAO(con);
-		try {
-			String name = inputCheck("社員名",false);
-			String kana = inputCheck("フリガナ", false);
-			String email = inputCheck("メールアドレス", false);
-			String password = inputCheck("パスワード", false);
-			String depId = inputCheck("部署ID", true);
-			int dID = Integer.parseInt(depId);
+		DepartmentDAO deptDao = new DepartmentDAO(con);
+
+		try {
+
+			//社員名入力
+			String name = inputCheck("社員名", false);
+			//フリガナ入力
+			String kana = inputCheck("フリガナ", false);
+			//メールアドレス入力
+			String mail = inputCheck("メールアドレス", false);
+			//パスワード入力
+			String password = inputCheck("パスワード", false);
+			//部署ID入力
+			String departmentId = inputCheck("部署ID", true);
+			
+		    //部署IDを数値変換
+		    int deptId = Integer.parseInt(departmentId);
+
+		    //入力された部署IDが存在するかチェック
+		    if (!deptDao.existsDepartment(deptId)) {
+
+		        System.out.println("入力された部署IDは存在しません");
+
+		        return;
+		    }
+		    
+		    //登録確認
+		    System.out.println("社員情報を登録しますか？ Y/y");
+		    System.out.println("(Y/y以外の入力であればキャンセル)");
+
+		    String answer = sc.nextLine();
+
+		    if (!"Y".equals(answer) && !"y".equals(answer)) {
+		        return;
+		    }
+			
+			//登録処理
+		    empDao.empInsert(
+		            name,
+		            kana,
+		            mail,
+		            password,
+		            deptId);

-			empDao.empInsert(name,kana,email,password,dID);
 			System.out.println("登録が完了しました");
-	}finally {
-		DbUtil.closeConnection(empDao.con);
-		}
-	}
-	public static void empUpdate() throws ClassNotFoundException, SQLException{
-		List<EmployeeDTO> empList = new ArrayList<>();
-		Connection con = DbUtil.getConnection();
-		EmployeeDAO empDao = new EmployeeDAO(con);
-		try {
-			String delId =inputCheck("ID", true);
-			int ID = Integer.parseInt(delId);
-			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;
-			}

-			String name = inputCheck("社員名",false);
-			String kana = inputCheck("フリガナ", false);
-			String email = inputCheck("メールアドレス", false);
-			String password = inputCheck("パスワード", false);
-			String depId = inputCheck("部署ID", true);
-			int dID = Integer.parseInt(depId);
+		} finally {

-			empDao.empUpdate(ID,name,kana,email,password,dID);
-			System.out.println("更新が完了しました");
-		}finally {
 			DbUtil.closeConnection(empDao.con);
 		}
 	}
+
+	//社員情報更新
+	public static void empUpdate() throws ClassNotFoundException, SQLException {
+		//DB接続
+		Connection con = DbUtil.getConnection();
+		EmployeeDAO empDao = new EmployeeDAO(con);
+		//部署テーブル存在確認用DAO生成
+		DepartmentDAO deptDao = new DepartmentDAO(con);
+
+		try {
+			//更新対象ID入力
+			String strId = inputCheck("ID", true);
+			int id = Integer.parseInt(strId);
+
+			//存在チェック
+			List<EmployeeDTO> empList = empDao.selectById(id);
+
+			if (empList.size() == 0) {
+				System.out.println("入力された値で情報がみつかりませんでした");
+
+				return;
+			}
+
+
+			EmployeeDTO emp = empList.get(0);
+
+			//Enterのみの場合は現在値をそのまま使用
+			//社員名入力
+			String name = inputUpdate("社員名", emp.getNmEmployee());
+			//フリガナ入力
+			String kana = inputUpdate("フリガナ", emp.getKnEmployee());
+			//メールアドレス入力
+			String mail = inputUpdate("メールアドレス", emp.getMailAddress());
+			//パスワード入力
+			String password = inputUpdate("パスワード", emp.getPassword());
+			//部署ID入力
+			String departmentId = inputUpdate("部署ID", String.valueOf(emp.getIdDepartment()));
+			
+			//部署IDを数値変換
+			int deptId = Integer.parseInt(departmentId);
+			//入力された部署IDが存在するかチェック
+			if (!deptDao.existsDepartment(deptId)) {
+			    System.out.println("入力された部署IDは存在しません");
+
+			    return;
+			}
+			
+			//更新確認
+			System.out.println("社員情報を更新しますか？ Y/y");
+			System.out.println("(Y/y以外の入力であればキャンセル)");
+
+			String answer = sc.nextLine();
+
+			if (!"Y".equals(answer) && !"y".equals(answer)) {
+			    return;
+			}
+			
+			//更新処理
+			empDao.empUpdate(
+			        id,
+			        name,
+			        kana,
+			        mail,
+			        password,
+			        deptId);
+
+			System.out.println("更新が完了しました");
+
+		} finally {
+
+			DbUtil.closeConnection(empDao.con);
+		}
+	}
+
+	//テーブル切り替え
+	//ここから部署テーブル
+	//部署テーブルから情報を検索する
+	public static void deptSelect() throws ClassNotFoundException, SQLException {
+
+		//検索結果格納用リスト
+		List<DepartmentDTO> deptList = new ArrayList<>();
+		//DB接続
+		Connection con = DbUtil.getConnection();
+		//DAO生成
+		DepartmentDAO deptDao = new DepartmentDAO(con);
+		//検索方法選択
+		System.out.println("1:全検索 2:条件検索 それ以外:戻る");
+		String select = sc.nextLine();
+
+		try {
+
+			switch (select) {
+
+			//全件検索
+			case "1":
+				deptList = deptDao.selectAll();
+				break;
+
+			//条件検索
+			case "2":
+			    //検索項目選択
+			    System.out.println("1:ID 2:部署名");
+			    String condition = sc.nextLine();
+			    switch (condition) {
+
+			    //ID検索
+			    case "1":
+			        String id = inputCheck("ID", true);
+			        deptList = deptDao.selectById(Integer.parseInt(id));
+
+			        break;
+
+			    //部署名検索
+			    case "2":
+			        String name = inputCheck("部署名", false);
+			        deptList = deptDao.selectByName(name);
+
+			        break;
+
+			    default:
+
+			        return;
+			    }
+
+			    break;
+
+			//メニューへ戻る
+			default:
+
+			    return;
+			}
+
+			//検索結果0件の場合
+			if (deptList.size() == 0) {
+				System.out.println("入力された値で情報がみつかりませんでした");
+
+				return;
+			}
+
+			//検索結果表示
+			for (DepartmentDTO dept : deptList) {
+
+				System.out.println(
+						dept.getIdDepartment()
+						+ "\t"
+						+ dept.getNmDepartment());
+			}
+
+		} finally {
+
+			DbUtil.closeConnection(deptDao.con);
+		}
+	}
+
+	//部署情報登録
+	public static void deptInsert() throws ClassNotFoundException, SQLException {
+		//DB接続
+		Connection con = DbUtil.getConnection();
+		//DAO生成
+		DepartmentDAO deptDao =
+				new DepartmentDAO(con);
+
+		try {
+			//部署名入力
+			String departmentName = inputCheck("部署名", false);
+			
+			//登録確認
+			System.out.println("部署情報を登録しますか？ Y/y");
+			System.out.println("(Y/y以外の入力であればキャンセル)");
+
+			String answer = sc.nextLine();
+
+			if (!"Y".equals(answer)  && !"y".equals(answer)) {
+
+			    return;
+			}
+			
+
+			//登録処理
+			deptDao.deptInsert(departmentName);
+			System.out.println("登録が完了しました");
+
+		} finally {
+
+			DbUtil.closeConnection(deptDao.con);
+		}
+	}
+
+	//部署情報更新
+	public static void deptUpdate() throws ClassNotFoundException, SQLException {
+		//DB接続
+		Connection con = DbUtil.getConnection();
+		//DAO生成
+		DepartmentDAO deptDao =	new DepartmentDAO(con);
+
+		try {
+			//更新対象ID入力
+			String strId = inputCheck("ID", true);
+
+			int id = Integer.parseInt(strId);
+
+			//存在チェック
+			List<DepartmentDTO> deptList = deptDao.selectById(id);
+
+			//データが存在しない場合
+			if (deptList.size() == 0) {
+				System.out.println("入力された値で情報がみつかりませんでした");
+				return;
+			}
+
+			//部署名入力
+			String departmentName = inputCheck("部署名", false);
+			
+			//更新確認
+			System.out.println("部署情報を更新しますか？ Y/y");
+			System.out.println("(Y/y以外の入力であればキャンセル)");
+
+			String answer = sc.nextLine();
+
+			if (!"Y".equals(answer) && !"y".equals(answer)) {
+			    return;
+			}
+
+			//更新処理
+			deptDao.deptUpdate(id, departmentName);
+
+			System.out.println("更新が完了しました");
+
+		} finally {
+
+			DbUtil.closeConnection(
+					deptDao.con);
+		}
+	}
+
+	//部署情報を削除する
+	public static void deptDelete() throws ClassNotFoundException, SQLException {
+		//DB接続
+		Connection con = DbUtil.getConnection();
+		//DAO生成
+		DepartmentDAO deptDao = new DepartmentDAO(con);
+
+		try {
+			//削除対象ID入力
+			String strId = inputCheck("ID", true);
+			int id = Integer.parseInt(strId);
+
+			//入力されたIDの存在確認
+			List<DepartmentDTO> deptList = deptDao.selectById(id);
+
+			//データが存在しない場合
+			if (deptList.size() == 0) {
+				System.out.println("入力された値で情報がみつかりませんでした");
+
+				return;
+			}
+
+			//削除確認メッセージ表示
+			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 answer = sc.nextLine();
+
+			//Yまたはyが入力された場合のみ削除
+			if ("Y".equals(answer) || "y".equals(answer)) {
+
+				//部署情報削除
+				deptDao.deptDelete(id);
+				System.out.println("削除が完了しました");
+			}
+
+		} finally {
+
+			DbUtil.closeConnection(deptDao.con);
+		}
+	}
+
+
+
 }
--- a/src/com/rhizome/example/util/DbUtil.java
+++ b/src/com/rhizome/example/util/DbUtil.java
@@ -44,15 +44,19 @@ 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("com.mysql.cj.jdbc.Driver");
-			con = DriverManager.getConnection(
-					"jdbc:mysql://127.0.0.1:3306/rezodb",
-					"rezouser",
-					"Rezo_0000"
-					);
-			return con;
-		}
+
+	public static Connection getConnection()
+			throws ClassNotFoundException, SQLException {
+
+		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。
@@ -63,11 +67,15 @@ 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();
-			}
+
+	public static void closeStatement(PreparedStatement stmt)
+			throws SQLException {
+
+		if (stmt != null) {
+			stmt.close();
 		}
+	}
+

 	/*
 	 * TODO 以下の仕様でメソッドを作成してください。
@@ -78,10 +86,12 @@ 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();
-			}
-		}

+	public static void closeConnection(Connection con)
+			throws SQLException {
+
+		if (con != null) {
+			con.close();
+		}
+	}
 }
Author	SHA1	Message	Date
石原　叶大	33070d1dc6	10/30 9-1まで完了	2026-10-30 17:02:38 +09:00
石原　叶大	9b993a436c	10/29 追加課題 8-3まで完了	2026-10-29 15:56:31 +09:00
石原　叶大	c7f723ffe2	10/29 6段階完了	2026-10-29 10:28:59 +09:00
石原　叶大	395f2f4f90	10/28	2026-10-28 16:56:46 +09:00