20261028

.classpath

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="lib" path="lib/mysql-connector-java-8.0.23.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

@@ -13,6 +13,7 @@ import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
 
+import com.rhizome.example.main.EmployeeDTO;
 import com.rhizome.example.util.DbUtil;
 
 public class EmployeeDAO {
@@ -48,8 +49,8 @@ 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("    " + "*");
@@ -60,10 +61,12 @@ public class EmployeeDAO {
 			this.stmt = con.prepareStatement(sql.toString());
 			rs = stmt.executeQuery();
 			while (rs.next()) {
+				EmployeeDTO emdto = new EmployeeDTO();
+				emdto.set
 				rtnList.add(rs.getString(NM_EMPLOYEE));
 			}
 		} finally {
-			DbUtil.closeStatement(this.stmt);
+			DbUtil.closeStatement();
 		}
 		return rtnList;
 	}

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

@@ -0,0 +1,38 @@
+package com.rhizome.example.dto;
+
+public class EmployeeDTO {
+	
+	//Employeeテーブルのカラム分のフィールド
+	private static final String TBL_NAME = "employee";
+	private static final String ID_EMPLOYEE = "id_employee";
+	private static final String NM_EMPLOYEE = "nm_employee";
+	private static final String KN_EMPLOYEE = "kn_employee";
+	private static final String MAIL_ADDRESS = "mail_address";
+	private static final String PASSWORD = "password";
+	private static final String ID_DEPARTMENT = "id_department";
+	public static String getTblName() {
+		return TBL_NAME;
+	}
+	public static String getIdEmployee() {
+		return ID_EMPLOYEE;
+	}
+	public static String getNmEmployee() {
+		return NM_EMPLOYEE;
+	}
+	public static String getKnEmployee() {
+		return KN_EMPLOYEE;
+	}
+	public static String getMailAddress() {
+		return MAIL_ADDRESS;
+	}
+	public static String getPassword() {
+		return PASSWORD;
+	}
+	public static String getIdDepartment() {
+		return ID_DEPARTMENT;
+	}
+	
+	
+	
+
+}

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

@@ -93,7 +93,7 @@ public class Main {
 				System.out.println(emp);
 			}
 		} finally {
-			DbUtil.closeConnection(empDao.con);
+			DbUtil.closeConnection();
 		}
 	}
 

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

@@ -1,6 +1,10 @@
 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）
@@ -41,6 +45,25 @@ 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
 	 */
+	//DB接続用メソッドを作成する
+	public static Connection getConnection() throws ClassNotFoundException {
+			//データベースの接続オブジェクトを初期化
+			Connection con = null;
+            // JDBCドライバの読み込み
+            Class.forName("com.mysql.cj.jdbc.Driver");
+
+            // Connectionの生成
+            try {
+				con = DriverManager.getConnection(
+				    "jdbc:mysql://127.0.0.1:3306/rezodb" // データベース
+				    , "rezouser" // ユーザ
+				    , "Rezo_0000" // パスワード
+				);
+			} catch (SQLException e) {
+                e.printStackTrace();
+            }
+           return con;
+     }
 	
 
 	/*
@@ -52,7 +75,15 @@ 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 = null;
+		try {
+            if (stmt != null) stmt.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
 		
+	}
 
 	/*
 	 * TODO 以下の仕様でメソッドを作成してください。
@@ -63,6 +94,12 @@ 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() {
+		try {
+            if (con != null) con.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+	}
 
 }