10/29 追加課題 8-3まで完了

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

@@ -0,0 +1,195 @@
+/*
+ * 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);
+	    }
+	}
+
+}
+

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;
@@ -53,9 +55,16 @@ 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());
@@ -69,6 +78,7 @@ public class EmployeeDAO {
 				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 {
@@ -83,9 +93,18 @@ public class EmployeeDAO {
 		List<EmployeeDTO> rtnList = new ArrayList<>();
 		//SQL作成
 		StringBuilder sql = new StringBuilder();
-		sql.append(" SELECT * ");
+		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(" WHERE id_employee = ? ");
+		sql.append(" INNER JOIN department ");
+		sql.append(" ON employee.id_department = department.id_department ");
+		sql.append(" WHERE employee.id_employee = ? ");
 
 		try {
 			//PreparedStatement生成
@@ -105,6 +124,7 @@ public class EmployeeDAO {
 				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);

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;
+	}
+}

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

@@ -8,6 +8,7 @@ public class EmployeeDTO {
 	private String mailAddress;
 	private String password;
 	private Integer idDepartment;
+	private String nmDepartment;
 
 
 	public Integer getIdEmployee() {
@@ -46,5 +47,13 @@ public class EmployeeDTO {
 	public void setIdDepartment(Integer idDepartment) {
 		this.idDepartment = idDepartment;
 	}
+	
+	public String getNmDepartment() {
+	    return nmDepartment;
+	}
+	
+	public void setNmDepartment(String nmDepartment) {
+	    this.nmDepartment = nmDepartment;
+	}
 
 }

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");
@@ -107,21 +142,79 @@ public class Main {
 				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(
-						emp.getIdEmployee() + "\t"
-								+ emp.getNmEmployee() + "\t"
-								+ emp.getKnEmployee() + "\t"
-								+ emp.getMailAddress() + "\t"
-								+ emp.getPassword() + "\t"
-								+ emp.getIdDepartment()
-						);
+						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
@@ -172,6 +265,28 @@ 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 {
 		//DB接続
@@ -211,88 +326,254 @@ public class Main {
 			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);
+		//DB接続
+		Connection con = DbUtil.getConnection();
+		EmployeeDAO empDao = new EmployeeDAO(con);
 
-	    try {
+		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);
-	        //登録処理
-	        empDao.empInsert(
-	                name,
-	                kana,
-	                mail,
-	                password,
-	                Integer.parseInt(departmentId));
+			//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);
+			//登録処理
+			empDao.empInsert(
+					name,
+					kana,
+					mail,
+					password,
+					Integer.parseInt(departmentId));
 
-	        System.out.println("登録が完了しました");
+			System.out.println("登録が完了しました");
 
-	    } finally {
+		} finally {
 
-	        DbUtil.closeConnection(empDao.con);
-	    }
+			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);
+		//DB接続
+		Connection con = DbUtil.getConnection();
+		EmployeeDAO empDao = new EmployeeDAO(con);
 
-	    try {
-	        //更新対象ID入力
-	        String strId = inputCheck("ID", true);
-	        int id = Integer.parseInt(strId);
+		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);
+			//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");
+			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;
-	        }
+				return;
+			}
 
-	        //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);
 
-	        //更新処理
-	        empDao.empUpdate(
-	                id,
-	                name,
-	                kana,
-	                mail,
-	                password,
-	                Integer.parseInt(departmentId));
+			EmployeeDTO emp = empList.get(0);
 
-	        System.out.println("更新が完了しました");
+			//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()));
+			//更新処理
+			empDao.empUpdate(
+					id,
+					name,
+					kana,
+					mail,
+					password,
+					Integer.parseInt(departmentId));
 
-	    } finally {
+			System.out.println("更新が完了しました");
 
-	        DbUtil.closeConnection(empDao.con);
-	    }
+		} 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":
+				//部署ID入力
+				String id = inputCheck("ID", true);
+
+				//ID検索実行
+				deptList = deptDao.selectById(Integer.parseInt(id));
+				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);
+		}
+	}
+
+
+
 }