Compare commits
6 Commits
a-takayama
...
h-hein
| Author | SHA1 | Date | |
|---|---|---|---|
| 97f3924b48 | |||
| 9e7d1e06ae | |||
| a5533aeb77 | |||
| 0e5ccfe379 | |||
| 329c222f56 | |||
| 56130f34b2 |
@@ -1,8 +0,0 @@
|
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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
1
.gitignore
vendored
@@ -1 +0,0 @@
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||||
/bin/
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23
.project
23
.project
@@ -1,23 +0,0 @@
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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.jdt.core.javabuilder</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.wst.validation.validationbuilder</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.wst.jsdt.core.jsNature</nature>
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<nature>org.eclipse.jdt.core.javanature</nature>
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</natures>
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</projectDescription>
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@@ -1,7 +0,0 @@
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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 +0,0 @@
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org.eclipse.wst.jsdt.launching.JRE_CONTAINER
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@@ -1 +0,0 @@
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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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@@ -48,20 +49,33 @@ 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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sql.append(" " + ID_EMPLOYEE + ",");
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sql.append(" " + NM_EMPLOYEE + ",");
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sql.append(" " + KN_EMPLOYEE + ",");
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sql.append(" " + MAIL_ADDRESS + ",");
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sql.append(" " + PASSWORD + ",");
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sql.append(" " + ID_DEPARTMENT);
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sql.append(" FROM ");
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sql.append(" " + TBL_NAME);
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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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while (rs.next()) {
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// EmployeeDAO dao = new EmployeeDAO(con);
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rtnList.add(rs.getString(NM_EMPLOYEE));
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EmployeeDTO dto = new EmployeeDTO();
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dto.setIdEmployee(rs.getInt(ID_EMPLOYEE));
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dto.setNmEmployee(rs.getString(NM_EMPLOYEE));
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dto.setKnEmployee(rs.getString(KN_EMPLOYEE));
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dto.setMailAddress(rs.getString(MAIL_ADDRESS));
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dto.setPassword(rs.getString(PASSWORD));
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dto.setIdDepartment(rs.getInt(ID_DEPARTMENT));
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// dto ကို List ထဲသို့ ထည့်ရပါမည်
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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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@@ -69,4 +83,117 @@ public class EmployeeDAO {
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return rtnList;
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}
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}
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//use selectById make the method
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public List<EmployeeDTO> selectById(int empId) throws SQLException, ClassNotFoundException {
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//calling to DTO and new inout array
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List<EmployeeDTO> rtnList = new ArrayList<>();
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//(StringBuilder) ကို သုံးခြင်းသည် Code များကို ဖတ်ရလွယ်ကူစေရန်၊ ပြင်ဆင်ရလွယ်ကူစေရန်
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StringBuilder sql = new StringBuilder();
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//append မသုံးရင်စာကြောင်းပိုရှဉ္လို့ append နဲံရေး
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sql.append(" SELECT ");
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sql.append(" " + ID_EMPLOYEE + ",");
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sql.append(" " + NM_EMPLOYEE + ",");
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sql.append(" " + KN_EMPLOYEE + ",");
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sql.append(" " + MAIL_ADDRESS + ",");
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sql.append(" " + PASSWORD + ",");
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sql.append(" " + ID_DEPARTMENT);
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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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try {
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this.stmt = con.prepareStatement(sql.toString());
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this.stmt.setInt(1, empId);
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rs = stmt.executeQuery();
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while (rs.next()) {
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EmployeeDTO dto = new EmployeeDTO();
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dto.setIdEmployee(rs.getInt(ID_EMPLOYEE));
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dto.setNmEmployee(rs.getString(NM_EMPLOYEE));
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dto.setKnEmployee(rs.getString(KN_EMPLOYEE));
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dto.setMailAddress(rs.getString(MAIL_ADDRESS));
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dto.setPassword(rs.getString(PASSWORD));
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dto.setIdDepartment(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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return rtnList;
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}
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//Delete method
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public void empDelete(int empId) throws ClassNotFoundException, SQLException {
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StringBuilder sql = new StringBuilder();
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sql.append(" DELETE 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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//for check
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try {
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this.stmt = con.prepareStatement(sql.toString());
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this.stmt.setInt(1, empId);
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this.stmt.executeUpdate();
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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 empInsert (String nmemp, String knname,String mail, String pw, int deptId) throws ClassNotFoundException, SQLException{
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StringBuilder sql = new StringBuilder();
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sql.append("INSERT INTO");
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sql.append(" " + TBL_NAME);
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sql.append(" ( ");
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sql.append(" " + NM_EMPLOYEE + ",");
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sql.append(" " + KN_EMPLOYEE + ",");
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sql.append(" " + MAIL_ADDRESS + ",");
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sql.append(" " + PASSWORD + ",");
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sql.append(" " + ID_DEPARTMENT);
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sql.append(" ) ");
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sql.append(" VALUES (?, ?, ?, ?, ?) ");
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try {
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this.stmt = con.prepareStatement(sql.toString());
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this.stmt.setString(1, nmemp);
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this.stmt.setString(2, knname);
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this.stmt.setString(3, mail);
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this.stmt.setString(4, pw);
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this.stmt.setInt(5, deptId);
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this.stmt.executeUpdate();
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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 empUpdate (String nmemp, String knname,String mail, String pw, int deptId,int empId) throws ClassNotFoundException, SQLException{
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StringBuilder sql = new StringBuilder();
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sql.append("UPDATE ");
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sql.append(" " + TBL_NAME);
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sql.append(" SET ");
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sql.append(" " + NM_EMPLOYEE + " = ?, ");
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sql.append(" " + KN_EMPLOYEE + " = ?, ");
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sql.append(" " + MAIL_ADDRESS + " = ?, ");
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sql.append(" " + PASSWORD + " = ?, ");
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sql.append(" " + ID_DEPARTMENT + " = ? ");
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sql.append(" WHERE ");
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sql.append(" " + ID_EMPLOYEE + " = ? ");
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try {
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this.stmt = con.prepareStatement(sql.toString());
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this.stmt.setString(1, nmemp);
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this.stmt.setString(2, knname);
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this.stmt.setString(3, mail);
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this.stmt.setString(4, pw);
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this.stmt.setInt(5, deptId);
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this.stmt.setInt(6, empId);
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this.stmt.executeUpdate();
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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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}
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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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@@ -15,7 +16,6 @@ import com.rhizome.example.util.DbUtil;
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*/
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public class Main {
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static Scanner sc = new Scanner(System.in);
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/**
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* テーブル切り替え用変数 0:Employeeテーブル 1:Departmentテーブル
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*/
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@@ -54,10 +54,13 @@ public class Main {
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empSelect();
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break;
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case "2":
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empInsert();
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break;
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case "3":
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empUpdate();
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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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@@ -70,6 +73,66 @@ public class Main {
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}
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}
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private void empUpdate() throws ClassNotFoundException, SQLException{
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// TODO 自動生成されたメソッド・スタブ
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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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// ID ရိုက်ထည့်ခိုင်းခြင်း
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String strId = inputCheck("ID", true);
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int id = Integer.parseInt(strId);
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// ID ရှိမရှိ စစ်ဆေးခြင်း (selectById ကို သုံးပါ)
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List<EmployeeDTO> empList = empDao.selectById(id);
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if (empList.isEmpty()) {
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System.out.println("入力された値で情報がみつかりませんでした");
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return;
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}
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// အချက်အလက် အသစ်များ တောင်းခံခြင်း
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String name = inputCheck("社員名", false);
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String kana = inputCheck("フリガナ", false);
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String mail = inputCheck("メールアドレス", false);
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String pass = inputCheck("パスワード", false);
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String strDeptId = inputCheck("部署ID", true);
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int deptId = Integer.parseInt(strDeptId);
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// DB ထဲသို့ ပြင်ဆင်ချက် ထည့်သွင်းခြင်း
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empDao.empUpdate(name, kana, mail, pass, deptId,id);
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System.out.println("更新が完了しました");
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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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public static void empInsert() throws ClassNotFoundException, 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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// အချက်အလက်များ အသီးသီး တောင်းခံခြင်း (inputCheck ကို သုံးပါ)
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String name = inputCheck("社員名", false);
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String kana = inputCheck("フリガナ", false);
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String mail = inputCheck("メールアドレス", false);
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String pass = inputCheck("パスワード", false);
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// 部署ID အတွက် Numerical Check ဖြစ်သည့် true ထည့်ပါမည်
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String strDeptId = inputCheck("部署ID", true);
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int deptId = Integer.parseInt(strDeptId);
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// DB ထဲသို့ ထည့်သွင်းခြင်း
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empDao.empInsert(name, kana, mail, pass, deptId);
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System.out.println("登録が完了しました");
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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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* 社員テーブルから情報を検索する
|
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@@ -78,7 +141,8 @@ 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<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");
|
||||
@@ -86,22 +150,70 @@ public class Main {
|
||||
try {
|
||||
switch (select) {
|
||||
case "1":
|
||||
//empList = empDao.selectAll();
|
||||
empList = empDao.selectAll();
|
||||
break;
|
||||
case "2":
|
||||
// inputCheck 方法ကို သုံးပြီး ID ရိုက်ခိုင်းပါ (数値 check အတွက် true ထည့်ပါ)
|
||||
String strId = inputCheck("ID", true);
|
||||
int id = Integer.parseInt(strId);
|
||||
empList = empDao.selectById(id);
|
||||
;
|
||||
|
||||
default:
|
||||
return;
|
||||
}
|
||||
|
||||
System.out.println("取得件数" + empList.size());
|
||||
|
||||
for (String emp : empList) {
|
||||
System.out.println(emp);
|
||||
// ရှာဖွေတွေ့ရှိခြင်း မရှိပါက
|
||||
if (empList.isEmpty()) {
|
||||
System.out.println("入力された値で情報がみつかりませんでした");
|
||||
return;
|
||||
}
|
||||
|
||||
for (EmployeeDTO emp : empList) {
|
||||
//for (String emp : empList) {
|
||||
//System.out.println(emp);
|
||||
System.out.println(emp.getIdEmployee() + "\t" +
|
||||
emp.getNmEmployee() + "\t" +
|
||||
emp.getKnEmployee() + "\t" +
|
||||
emp.getMailAddress() + "\t" +
|
||||
emp.getPassword() + "\t" +
|
||||
emp.getIdDepartment());
|
||||
}
|
||||
} finally {
|
||||
DbUtil.closeConnection(empDao.con);
|
||||
DbUtil.closeConnection(empDao.con);
|
||||
}
|
||||
}
|
||||
|
||||
public static void empDelete() throws ClassNotFoundException, SQLException {
|
||||
Connection con = DbUtil.getConnection();
|
||||
EmployeeDAO empDao = new EmployeeDAO(con);
|
||||
|
||||
try {
|
||||
// ID ရိုက်ထည့်ခိုင်းခြင်း (inputCheck ကို သုံးပါ)
|
||||
String strId = inputCheck("ID", true);
|
||||
int id = Integer.parseInt(strId);
|
||||
//System.out.println("IDを入力してください");
|
||||
|
||||
// ID ရှိမရှိ စစ်ဆေးခြင်း (selectById ကို သုံးပါ)
|
||||
List<EmployeeDTO> empList = empDao.selectById(id);
|
||||
if (empList.isEmpty()) {
|
||||
System.out.println("入力された値で情報がみつかりませんでした");
|
||||
return;
|
||||
}
|
||||
|
||||
// ဖျက်ရန် အတည်ပြုချက် (Confirmation) တောင်းခြင်း
|
||||
System.out.println("指定されたIDの情報を削除します? Y/y");
|
||||
String confirm = sc.nextLine();
|
||||
if ("Y".equalsIgnoreCase(confirm)) {
|
||||
empDao.empDelete(id);
|
||||
System.out.println("削除が完了しました");
|
||||
}
|
||||
}finally {
|
||||
DbUtil.closeConnection(empDao.con);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* フラグを判定し、テーブル名を取得する
|
||||
*
|
||||
@@ -151,4 +263,7 @@ public class Main {
|
||||
}
|
||||
return str;
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
||||
@@ -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 = "rezouser1";
|
||||
private static final String DB_PASS = "Rezo_0001";
|
||||
private static final String DB_USER = "rezouser";
|
||||
private static final String DB_PASS = "Rezo_0000";
|
||||
|
||||
// 定数定義(PostgreSQL用)
|
||||
// private static final String DBMS = "postgresql";
|
||||
@@ -42,25 +42,19 @@ public class DbUtil {
|
||||
* 例外 :ClassNotFoundException, SQLException
|
||||
* 処理 :JDBCドライバを読み込み後、DB接続する。
|
||||
* 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
|
||||
* ※Connection生成には上記の定数を活用してくださ
|
||||
*/
|
||||
//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 {
|
||||
//データベースへの接続
|
||||
con = DriverManager.getConnection(DB_URL, DB_USER, DB_PASS);
|
||||
return con;
|
||||
|
||||
public static Connection getConnection() throws ClassNotFoundException, SQLException {
|
||||
//connection is null or not null and create new
|
||||
if (con == null || con.isClosed()) {
|
||||
Class.forName(DB_DRIVER);
|
||||
con = DriverManager.getConnection(DB_URL, DB_USER, DB_PASS);
|
||||
}
|
||||
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。
|
||||
*
|
||||
@@ -70,14 +64,14 @@ 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
|
||||
*/
|
||||
// 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
|
||||
public static void closeStatement(PreparedStatement stmt) throws 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。
|
||||
*
|
||||
@@ -88,10 +82,9 @@ 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 {
|
||||
//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();
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user