1日目 2段階目まで

.classpath

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<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.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.wst.validation.validationbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.wst.jsdt.core.jsNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</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.dto.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("    " + "*");
@@ -63,7 +64,7 @@ public class EmployeeDAO {
 				rtnList.add(rs.getString(NM_EMPLOYEE));
 			}
 		} finally {
-			DbUtil.closeStatement(this.stmt);
+			DbUtil.closeStatement​(this.stmt);
 		}
 		return rtnList;
 	}

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

@@ -0,0 +1,7 @@
+package com.rhizome.example.dto;
+
+public class EmployeeDTO {
+	
+	
+	
+}

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​(empDao.con);
 		}
 	}
 

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

@@ -1,6 +1,7 @@
 package com.rhizome.example.util;
 
 import java.sql.Connection;
+import java.sql.DriverManager;
 
 public class DbUtil {
 	// 定数定義（共通）
@@ -42,6 +43,10 @@ public class DbUtil {
 	 * 				  ※Connection生成には上記の定数を活用してください
 	 */
 
+	public static java.sql.Connection getConnection() throws java.lang.ClassNotFoundException, java.sql.SQLException {
+		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。
@@ -53,6 +58,11 @@ public class DbUtil {
 	 * 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​(java.sql.PreparedStatement stmt) throws java.sql.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。
@@ -64,5 +74,15 @@ 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 != null) {
+	//con.close();
+	//}
+	//
+
+	public static void closeConnection​(java.sql.Connection con) throws java.sql.SQLException {
+		if (con != null)
+			con.close();
+	}
 
 }