2日目
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8
.classpath
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8
.classpath
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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
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<classpathentry kind="src" path="src"/>
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<classpathentry kind="lib" path="lib/mysql-connector-java-8.0.23.jar"/>
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<classpathentry kind="lib" path="実行例/DAO_Simple.jar"/>
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<classpathentry kind="output" path="bin"/>
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</classpath>
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1
.gitignore
vendored
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1
.gitignore
vendored
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@@ -0,0 +1 @@
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/bin/
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23
.project
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23
.project
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>em-jdbc</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.wst.validation.validationbuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.jdt.core.javanature</nature>
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<nature>org.eclipse.wst.jsdt.core.jsNature</nature>
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</natures>
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</projectDescription>
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7
.settings/.jsdtscope
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7
.settings/.jsdtscope
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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.JRE_CONTAINER"/>
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<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.baseBrowserLibrary"/>
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<classpathentry kind="src" path=""/>
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<classpathentry kind="output" path=""/>
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</classpath>
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1
.settings/org.eclipse.wst.jsdt.ui.superType.container
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1
.settings/org.eclipse.wst.jsdt.ui.superType.container
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@@ -0,0 +1 @@
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org.eclipse.wst.jsdt.launching.JRE_CONTAINER
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1
.settings/org.eclipse.wst.jsdt.ui.superType.name
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1
.settings/org.eclipse.wst.jsdt.ui.superType.name
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@@ -0,0 +1 @@
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Global
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@@ -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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@@ -26,7 +27,7 @@ public class EmployeeDAO {
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/** DBコネクション */
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public Connection con;
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/** DBステートメント */
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/** DBステートPreparedStatement stmtメント */
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PreparedStatement stmt;
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/** 検索結果 */
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ResultSet rs;
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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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@@ -60,7 +61,20 @@ public class EmployeeDAO {
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this.stmt = con.prepareStatement(sql.toString());
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rs = stmt.executeQuery();
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while (rs.next()) {
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rtnList.add(rs.getString(NM_EMPLOYEE));
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//インスタンス生成
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EmployeeDTO emp = new EmployeeDTO();
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emp.setId(rs.getInt("id_employee"));
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emp.setName(rs.getString("nm_employee"));
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emp.setKana(rs.getString("kn_employee"));
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emp.setEmail(rs.getString("mail_address"));
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emp.setPass(rs.getString("password"));
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emp.setIdDep(rs.getInt("id_department"));
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rtnList.add(emp);
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}
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} finally {
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DbUtil.closeStatement(this.stmt);
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50
src/com/rhizome/example/dto/EmployeeDTO.java
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50
src/com/rhizome/example/dto/EmployeeDTO.java
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package com.rhizome.example.dto;
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//フィールド
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public class EmployeeDTO {
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private Integer id;
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private String name;
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private String kana;
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private String email;
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private String pass;
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private Integer idDep;
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//ゲッター・セッター
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public Integer getId() {
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return id;
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}
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public String getName() {
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return name;
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}
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public String getKana() {
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return kana;
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}
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public String getEmail() {
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return email;
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}
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public String getPass() {
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return pass;
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}
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public Integer getIdDep() {
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return idDep;
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}
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public void setId(Integer id) {
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this.id = id;
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}
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public void setName(String name) {
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this.name = name;
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}
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public void setKana(String kana) {
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this.kana = kana;
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}
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public void setEmail(String email) {
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this.email = email;
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}
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public void setPass(String pass) {
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this.pass = pass;
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}
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public void setIdDep(Integer idDep) {
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this.idDep = idDep;
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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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@@ -76,7 +77,7 @@ 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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@@ -89,7 +90,7 @@ public class Main {
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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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for (EmployeeDTO emp : empList) {
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System.out.println(emp);
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}
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} finally {
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@@ -1,6 +1,9 @@
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package com.rhizome.example.util;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.PreparedStatement;
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import java.sql.SQLException;
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public class DbUtil {
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// 定数定義(共通)
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@@ -41,6 +44,23 @@ 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() {
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try {
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Class.forName("com.mysql.cj.jdbc.Driver");
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con = DriverManager.getConnection(
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"jdbc:mysql://127.0.0.1:3306/rezodb" // データベース
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, "rezouser" // ユーザ
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, "Rezo_0000" // パスワード
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);
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}catch (ClassNotFoundException e){
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e.printStackTrace();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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return con;
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}
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/*
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@@ -53,6 +73,14 @@ public class DbUtil {
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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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try {
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if (stmt != null) stmt.close();
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} catch (SQLException e) {
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e.printStackTrace();
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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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@@ -63,6 +91,12 @@ 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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try {
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if (con != null) con.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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