段階1完了

.project

@@ -6,18 +6,18 @@
 	</projects>
 	<buildSpec>
 		<buildCommand>
-			<name>org.eclipse.wst.validation.validationbuilder</name>
+			<name>org.eclipse.jdt.core.javabuilder</name>
 			<arguments>
 			</arguments>
 		</buildCommand>
 		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
+			<name>org.eclipse.wst.validation.validationbuilder</name>
 			<arguments>
 			</arguments>
 		</buildCommand>
 	</buildSpec>
 	<natures>
-		<nature>org.eclipse.jdt.core.javanature</nature>
 		<nature>org.eclipse.wst.jsdt.core.jsNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
 	</natures>
 </projectDescription>

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

@@ -13,7 +13,6 @@ import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
 
-import com.rhizome.example.dto.EmployeeDTO;
 import com.rhizome.example.util.DbUtil;
 
 public class EmployeeDAO {
@@ -49,59 +48,25 @@ public class EmployeeDAO {
 	 * @throws SQLException
 	 * @throws ClassNotFoundException
 	 */
-	public List<EmployeeDTO> selectAll() throws SQLException, ClassNotFoundException {
-		List<EmployeeDTO> rtnList = new ArrayList<>();
+	public List<String> selectAll() throws SQLException, ClassNotFoundException {
+		List<String> 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()) {
-				EmployeeDTO dto = new EmployeeDTO();
-				dto.setId_employee(rs.getInt("id_employee"));
-				dto.setNm_employee(rs.getString("nm_employee"));
-				dto.setKn_employee(rs.getString("kn_employee"));
-				dto.setMail_address(rs.getString("mail_address"));
-				dto.setPassword(rs.getString("password"));
-				dto.setId_department(rs.getInt("id_department"));
-				rtnList.add(dto);
+//				EmployeeDAO dao = new EmployeeDAO(con);
+				rtnList.add(rs.getString(NM_EMPLOYEE));
 			}
 		} finally {
-			DbUtil.closestatement(this.stmt);
+			DbUtil.closeStatement(this.stmt);
 		}
 		return rtnList;
 	}
 
-	public List<EmployeeDTO> selectById(int id_employee) throws SQLException, ClassNotFoundException {
-		List<EmployeeDTO> rtnList2 = new ArrayList<>();
-		StringBuilder sql = new StringBuilder();
-		sql.append(" SELECT ");
-		sql.append("    " + "*");
-		sql.append(" FROM ");
-		sql.append("    " + TBL_NAME);
-		sql.append(" WHERE " + ID_EMPLOYEE+ "=?");
-		try {
-
-			this.stmt = con.prepareStatement(sql.toString());
-			rs = stmt.executeQuery();
-			while (rs.next()) {
-				EmployeeDTO dto = new EmployeeDTO();
-				dto.setId_employee(rs.getInt("id_employee"));
-				dto.setNm_employee(rs.getString("nm_employee"));
-				dto.setKn_employee(rs.getString("kn_employee"));
-				dto.setMail_address(rs.getString("mail_address"));
-				dto.setPassword(rs.getString("password"));
-				dto.setId_department(rs.getInt("id_department"));
-				rtnList2.add(dto);
-			}
-		} finally {
-			DbUtil.closestatement(this.stmt);
-		}
-		return rtnList2;
-	}
-
 }

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

@@ -1,69 +0,0 @@
-package com.rhizome.example.dto;
-
-public class EmployeeDTO {
-
-	private Integer id_employee;
-	private String nm_employee;
-	private String kn_employee;
-	private String mail_address;
-	private String password;
-	private Integer id_department;
-
-	public Integer getId_employee() {
-		return id_employee;
-	}
-
-	public void setId_employee(Integer id_employee) {
-		this.id_employee = id_employee;
-	}
-
-	public String getNm_employee() {
-		return nm_employee;
-	}
-
-	public void setNm_employee(String nm_employee) {
-		this.nm_employee = nm_employee;
-	}
-
-	public String getKn_employee() {
-		return kn_employee;
-	}
-
-	public void setKn_employee(String kn_employee) {
-		this.kn_employee = kn_employee;
-	}
-
-	public String getMail_address() {
-		return mail_address;
-	}
-
-	public void setMail_address(String mail_address) {
-		this.mail_address = mail_address;
-	}
-
-	public String getPassword() {
-		return password;
-	}
-
-	public void setPassword(String password) {
-		this.password = password;
-	}
-
-	public Integer getId_department() {
-		return id_department;
-	}
-
-	public void setId_department(Integer id_department) {
-		this.id_department = id_department;
-	}
-
-	public String toString() {
-		return id_employee + "\t"
-				+ nm_employee + "\t"
-				+ kn_employee + "\t"
-				+ mail_address + "\t"
-				+ password + "\t"
-				+ id_department;
-
-	}
-}

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

@@ -7,7 +7,6 @@ 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;
 
 /**
@@ -16,6 +15,7 @@ import com.rhizome.example.util.DbUtil;
  */
 public class Main {
 	static Scanner sc = new Scanner(System.in);
+	
 	/**
 	 * テーブル切り替え用変数 0：Employeeテーブル 1：Departmentテーブル
 	 */
@@ -70,6 +70,7 @@ public class Main {
 		}
 	}
 
+
 	/**
 	 * 社員テーブルから情報を検索する
 	 *
@@ -77,7 +78,7 @@ public class Main {
 	 * @throws SQLException
 	 */
 	public static void empSelect() throws ClassNotFoundException, SQLException {
-		List<EmployeeDTO> empList = new ArrayList<>();
+		List<String> 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");
@@ -87,19 +88,17 @@ public class Main {
 			case "1":
 				empList = empDao.selectAll();
 				break;
-			case "2":
-				System.out.println("IDを入力してください");
-				
-				empList = empDao.selectById(tblFlg);
-				break;
 			default:
 				return;
 			}
-			for (EmployeeDTO emp : empList) {
+
+			System.out.println("取得件数" + empList.size());
+			
+			for (String emp : empList) {
 				System.out.println(emp);
 			}
 		} finally {
-			DbUtil.closeConnection(empDao.con);
+			DbUtil.closeConnection(empDao.con); 
 		}
 	}
 

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

@@ -9,8 +9,8 @@ public class DbUtil {
 	// 定数定義（共通）
 	private static final String DB_HOST = "127.0.0.1";
 	private static final String DB_NAME = "rezodb";
-	private static final String DB_USER = "rezouser";
-	private static final String DB_PASS = "Rezo_0000";
+	private static final String DB_USER = "rezouser1";
+	private static final String DB_PASS = "Rezo_0001";
 
 	// 定数定義（PostgreSQL用）
 	// private static final String DBMS = "postgresql";
@@ -44,11 +44,22 @@ 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
 	 */
+	//例外が2個あるためカンマでつなげることができる
 	public static Connection getConnection() throws SQLException {
-		//データベースの接続
+		//データベースへの接続
 		con = DriverManager.getConnection(DB_URL, DB_USER, DB_PASS);
-		return con;
+			return con;
 	}
+//		try {
+//			Class.forName("com.mysql.cj.jdbc.Driver");
+//		} catch (ClassNotFoundException e) {
+//			throw new SQLException("JDBCドライバが見つかりません", e);
+//		}
+//		//JDBCドライバの読み込み
+//		return DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/rezodb"
+//				, "rezouser1"
+//				, "Rezo_0001");
+
 
 	/*
 	 * TODO 以下の仕様でメソッドを作成してください。
@@ -59,14 +70,14 @@ 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.equals(null)) {
-			//DBステートメントを閉じる
+	//               PreparedStatement型 / DBステートメント        例外： SQLException
+	public static void closeStatement( PreparedStatement stmt) throws SQLException {
+		//引数のDBステートメントがnullでない場合
+		if(stmt != null) {
+		//そのDBステートメントをクローズする
 			stmt.close();
 		}
 	}
-
 	/*
 	 * TODO 以下の仕様でメソッドを作成してください。
 	 *
@@ -77,8 +88,11 @@ public class DbUtil {
 	 * 処理			：引数のコネクションがnullでない場合、そのコネクションを切断する
 	 */
 	public static void closeConnection(Connection con) throws SQLException {
-		if (!con.equals(null)) {
+		//引数のコネクションがnullでない場合
+		if(con != null) {
+		//そのコネクションを切断する
 			con.close();
 		}
 	}
+
 }