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5 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| b4f52cbc55 | |||
| f5ef9d86f6 | |||
| 54565e4472 | |||
| da3b79b06b | |||
| fb8d2c0b1c |
@@ -13,6 +13,7 @@ import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.List;
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import com.rhizome.example.dto.EmployeeDTO;
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import com.rhizome.example.util.DbUtil;
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public class EmployeeDAO {
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@@ -48,8 +49,8 @@ public class EmployeeDAO {
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* @throws SQLException
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* @throws ClassNotFoundException
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*/
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public List<String> selectAll() throws SQLException, ClassNotFoundException {
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List<String> rtnList = new ArrayList<>();
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public List<EmployeeDTO> selectAll() throws SQLException, ClassNotFoundException {
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List<EmployeeDTO> rtnList = new ArrayList<>();
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StringBuilder sql = new StringBuilder();
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sql.append(" SELECT ");
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sql.append(" " + "*");
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@@ -59,8 +60,16 @@ public class EmployeeDAO {
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this.stmt = con.prepareStatement(sql.toString());
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rs = stmt.executeQuery();
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//DBのカラムをリストに追加
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while (rs.next()) {
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rtnList.add(rs.getString(NM_EMPLOYEE));
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EmployeeDTO dto = new EmployeeDTO();
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dto.setEmpid(rs.getInt(ID_EMPLOYEE));
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dto.setName(rs.getString(NM_EMPLOYEE));
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dto.setKana(rs.getString(KN_EMPLOYEE));
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dto.setMail(rs.getString(MAIL_ADDRESS));
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dto.setPass(rs.getString(PASSWORD));
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dto.setDepid(rs.getInt(ID_DEPARTMENT));
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rtnList.add(dto);
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}
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} finally {
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DbUtil.closeStatement(this.stmt);
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@@ -68,4 +77,65 @@ public class EmployeeDAO {
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return rtnList;
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}
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public List<EmployeeDTO> selectByld(int id) throws SQLException {
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List<EmployeeDTO> rtnList = new ArrayList<>();
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StringBuilder sql = new StringBuilder();
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//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
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sql.append(" SELECT ");
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sql.append(" " + "*");
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sql.append(" FROM ");
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sql.append(" " + TBL_NAME);
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sql.append(" WHERE ");
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sql.append(" " + ID_EMPLOYEE);
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sql.append(" = ");
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sql.append(" " + id);
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try {
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this.stmt = con.prepareStatement(sql.toString());
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rs = stmt.executeQuery();
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//DBのカラムをリストに追加
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while (rs.next()) {
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EmployeeDTO dto = new EmployeeDTO();
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dto.setEmpid(rs.getInt(ID_EMPLOYEE));
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dto.setName(rs.getString(NM_EMPLOYEE));
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dto.setKana(rs.getString(KN_EMPLOYEE));
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dto.setMail(rs.getString(MAIL_ADDRESS));
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dto.setPass(rs.getString(PASSWORD));
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dto.setDepid(rs.getInt(ID_DEPARTMENT));
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rtnList.add(dto);
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}
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} finally {
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DbUtil.closeStatement(this.stmt);
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}
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if (rtnList.size() == 0) {
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System.out.println("入力された値で情報が見つかりませんでした");
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}
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return rtnList;
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}
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public void empDelete(int id) throws SQLException {
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StringBuilder sql = new StringBuilder();
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//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
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sql.append(" DELETE ");
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sql.append(" " + "*");
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sql.append(" FROM ");
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sql.append(" " + TBL_NAME);
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sql.append(" WHERE ");
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sql.append(" " + ID_EMPLOYEE);
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sql.append(" = ");
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sql.append(" " + id);
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try {
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this.stmt = con.prepareStatement(sql.toString());
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this.stmt.executeUpdate();
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System.out.println("削除が完了しました");
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} finally {
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DbUtil.closeStatement(this.stmt);
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}
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}
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public void emplnsert (String name, String kana, String mail, String pass, int id) {
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StringBuilder sql = new StringBuilder();
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}
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}
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@@ -7,6 +7,7 @@ import java.util.List;
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import java.util.Scanner;
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import com.rhizome.example.dao.EmployeeDAO;
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import com.rhizome.example.dto.EmployeeDTO;
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import com.rhizome.example.util.DbUtil;
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/**
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@@ -44,6 +45,8 @@ public class Main {
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* @throws SQLException
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*/
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public void start() throws ClassNotFoundException, SQLException {
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Connection con = DbUtil.getConnection();
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EmployeeDAO empDao = new EmployeeDAO(con);
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System.out.println();
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System.out.println("現在のメンテナンス対象テーブル:" + targetTableName(tblFlg));
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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");
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@@ -57,6 +60,7 @@ public class Main {
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case "3":
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break;
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case "4":
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empDelete();
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break;
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case "9":
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return;
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@@ -69,6 +73,30 @@ public class Main {
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}
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}
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private void empDelete() throws SQLException {
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Connection con = DbUtil.getConnection();
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EmployeeDAO empDao = new EmployeeDAO(con);
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try {
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String strId = inputCheck("ID", true);
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int id = Integer.parseInt(strId);
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List<EmployeeDTO> empList = empDao.selectByld(id);
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if (empList.isEmpty()) {
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} else {
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System.out.println("指定されたIDの情報を削除します? Y/y");
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System.out.println("Y/y以外の入力であればキャンセル");
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Scanner sc = new Scanner(System.in);
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String str = sc.nextLine();
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if (str.equals("Y") || str.equals("y")) {
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empDao.empDelete(id);
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} else {
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System.out.println("キャンセルしました");
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}
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}
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} finally {
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DbUtil.closeConnection(empDao.con);
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}
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}
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/**
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* 社員テーブルから情報を検索する
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*
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@@ -76,7 +104,7 @@ public class Main {
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* @throws SQLException
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*/
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public static void empSelect() throws ClassNotFoundException, SQLException {
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List<String> empList = new ArrayList<>();
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List<EmployeeDTO> empList = new ArrayList<>();
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Connection con = DbUtil.getConnection();
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EmployeeDAO empDao = new EmployeeDAO(con);
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System.out.println("1:全検索 2:条件検索 それ以外:戻る");
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@@ -86,11 +114,17 @@ public class Main {
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case "1":
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empList = empDao.selectAll();
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break;
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case "2":
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System.out.println("IDを入力してください");
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int id = sc.nextInt();
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empList = empDao.selectByld(id);
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break;
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default:
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return;
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}
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for (String emp : empList) {
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System.out.println(emp);
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for (EmployeeDTO emp : empList) {
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System.out.println(emp.getEmpid() + "\t" + emp.getName() + "\t" + emp.getKana() + "\t"
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+ emp.getMail() + "\t" + emp.getPass() + "\t" + emp.getDepid());
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}
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} finally {
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DbUtil.closeConnection(empDao.con);
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@@ -124,7 +158,7 @@ public class Main {
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* @return
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*/
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public static String inputCheck(String titleName, boolean flg) {
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String str = null;
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String str;
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while (true) {
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System.out.println(titleName + "を入力してください");
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str = sc.nextLine();
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@@ -44,18 +44,10 @@ public class DbUtil {
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* 生成されたConnectionを返却する
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* ※Connection生成には上記の定数を活用してください
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*/
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public static Connection getConnection() throws ClassNotFoundException, SQLException {
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try {
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Class.forName(DB_DRIVER);
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return DriverManager.getConnection(DB_URL, DB_USER, DB_PASS);
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} catch (ClassNotFoundException e) {
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System.out.println();
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throw e;
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} catch (SQLException e) {
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System.out.println();
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throw e;
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}
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public static Connection getConnection() throws SQLException {
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//データベースへの接続
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con = DriverManager.getConnection(DB_URL, DB_USER ,DB_PASS);
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return con;
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}
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/*
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@@ -67,16 +59,12 @@ public class DbUtil {
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* 例外 :SQLException
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* 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
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*/
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public static void closeStatement(PreparedStatement stmt) {
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if (stmt != null) {
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try {
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stmt.close();
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} catch (SQLException e) {
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System.out.println();
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public static void closeStatement(PreparedStatement ps) throws SQLException {
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//DBステートメントのクローズ
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if (ps != null) {
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ps.close(); //DBステートメントをクローズ
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}
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}
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}
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/*
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* TODO 以下の仕様でメソッドを作成してください。
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*
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@@ -86,16 +74,11 @@ public class DbUtil {
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* 例外 :SQLException
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* 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
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*/
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public static void closeConnection(Connection con) {
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public static void closeConnection(Connection con) throws SQLException {
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//コネクションの切断
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if (con != null) {
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try {
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if (!con.isClosed()) {
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con.close();
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}
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} catch (SQLException e) {
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e.printStackTrace();
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con.close(); //コネクション切断
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}
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}
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}
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}
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Reference in New Issue
Block a user