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1、/ 項(xiàng)目目標(biāo)：建立員工管理系統(tǒng)第一個(gè)版本。/ 實(shí)現(xiàn)圖形用戶界面的員工信息查詢、增、刪、改；與數(shù)據(jù)庫(kù)建立，并將修改結(jié)果時(shí)時(shí)保存到數(shù)據(jù)庫(kù)。/ 模塊： 1.GUI 界面 2. 數(shù)據(jù)庫(kù)連接3. 查詢 4. 增、 5 刪 6 改(操作數(shù)據(jù)庫(kù))import java.sql.*;import java.awt.*;import java.awt.event.*;import javax.swing.*;public class EmpManageSys implements ActionListener Connection con;Statement stmt;String sql;ResultSet
2、rs;StringBuffer sb = new StringBuffer();JTextField jtf2 = new JTextField( 張飛 ,10);JTextField jtf3 = new JTextField(10);JTextField jtf4 = new JTextField(10);JTextField jtf7 = new JTextField(10);JTextField jtf5 = new JTextField(10);JTextField jtf6 = new JTextField(10);JTextField jtf8 = new JTextField(
3、10);JTextField jtf9 = new JTextField(10);JTextArea jta10 = new JTextArea(50, 40);public void actionPerformed(ActionEvent e) String str = e.getActionCommand();if ( 查詢 .equals(str) /if check the button of 查詢， then go to method of searchEmp() searchEmp(); else if ( 增加 .equals(str) /if check the button
4、of 增加， then go to method of addEmp() addEmp(); else if ( 修改 .equals(str) /if check the button of 修改， then go to method of alterEmp() alterEmp(); else if ( 撤除 .equals(str) /if check the button of 撤除， then go to method of deleteEmp() deleteEmp();/this is the constructor.EmpManageSys() createGUI();conn
5、ectToDataBase();/ searchEmp();/ addEmp();/ deleteEmp();alterEmp();/connect to the database by using the method getConnection from the class of JdbcUtil./You can find the class of JdbcUtil at the button of this page.public Connection connectToDataBase() con = JdbcUtil.getConnection();System.out.print
6、ln(con);return con;public void searchEmp() jta10.setText();try stmt = con.createStatement();/ sql = select * from Mstar where id= + jtf3.getText();/ sql1=select * from sd100343 where =+jtf3.getText();sql = select * from Mstar where chineseName=+ jtf2.getText().toLowerCase().trim() + or id=+ jtf3.get
7、Text().toLowerCase().trim() + or engName=+ jtf4.getText().toLowerCase().trim() + or UNIT=+ jtf5.getText().toLowerCase().trim() + or TEAM=+ jtf6.getText().toLowerCase().trim() + or Phone=+ jtf7.getText().toLowerCase().trim() + or region=+ jtf8.getText().toLowerCase().trim() + or busStation=+ jtf9.get
8、Text().toLowerCase().trim();stmt.executeQuery(sql);rs = stmt.getResultSet();ResultSetMetaData meta = rs.getMetaData();int cols = meta.getColumnCount();while (rs.next() for (int i = 1; i = cols; i+) sb.append( + meta.getColumnName(i) + =);sb.append(rs.getString(i);sb.append(n);jta10.setText(sb.toStri
9、ng(); catch (SQLException e11) e11.printStackTrace();public void addEmp() try stmt = con.createStatement();sql = update Mstar values( + jtf2.getText() + jtf3.getText()+ jtf4.getText() + jtf5.getText() + jtf6.getText()+ jtf7.getText() + jtf8.getText() + jtf9.getText() + );int i = stmt.getUpdateCount(
10、);if (jtf2.getText() != null) & (jtf4.getText() != null)& (jtf6.getText() != null) & (jtf7.getText() != null) stmt.executeUpdate(sql);jta10.setText( 添加記錄成功 + i + 條); else jta10.setText( 帶*號(hào)項(xiàng)為添加記錄時(shí)不能為空); catch (SQLException e1) e1.printStackTrace(); public void deleteEmp() searchEmp();try stmt = con.
11、createStatement();sql = delete from Mstar where chineseName=+ jtf2.getText().toLowerCase().trim() + or id=+ jtf3.getText().toLowerCase().trim() + or engName=+ jtf4.getText().toLowerCase().trim() + or UNIT=+ jtf5.getText().toLowerCase().trim() + or TEAM=+ jtf6.getText().toLowerCase().trim() + or Phon
12、e=+ jtf7.getText().toLowerCase().trim() + or region=+ jtf8.getText().toLowerCase().trim() + or busStation=+ jtf9.getText().toLowerCase().trim();stmt.executeUpdate(sql);int i = stmt.getUpdateCount();jta10.setText( 撤除操作成功 + i + 條); catch (SQLException e) e.printStackTrace();public void alterEmp() sear
13、chEmp();sql = update Mstar set chineseName=+ jtf2.getText().toLowerCase().trim() + and id=+ jtf3.getText().toLowerCase().trim() + and engName=+ jtf4.getText().toLowerCase().trim() + and UNIT=+ jtf5.getText().toLowerCase().trim() + and TEAM=+ jtf6.getText().toLowerCase().trim() + and Phone=+ jtf7.get
14、Text().toLowerCase().trim() + and region=+ jtf8.getText().toLowerCase().trim() + and busStation=+ jtf9.getText().toLowerCase().trim();int i = 0;try stmt.executeUpdate(sql);i = stmt.getUpdateCount(); catch (SQLException e) e.printStackTrace();jta10.setText( 修改操作成功 + i + 條);public void createGUI() JFr
15、ame jf = new JFrame( 員工信息管理系統(tǒng));jf.setLayout(new GridLayout(2, 1);/ jf.setLayout(new GridLayout(10,2);JPanel jp00 = new JPanel(new GridLayout(5, 4);JPanel jp1 = new JPanel();JButton jb11 = new JButton( 查詢 );jb11.addActionListener(this);JButton jb12 = new JButton( 增加 );jb12.addActionListener(this);jp1
16、.add(jb11);jp1.add(jb12);jp00.add(jp1);JPanel jp11 = new JPanel();JButton jb111 = new JButton( 修改 );jb111.addActionListener(this);JButton jb112 = new JButton( 撤除 );jb112.addActionListener(this);jp11.add(jb111);jp11.add(jb112);jp00.add(jp11);JPanel jp2 = new JPanel();JLabel jl2 = new JLabel( 中 文 名 *
17、);jp2.add(jl2);jp2.add(jtf2);jp00.add(jp2);JPanel jp3 = new JPanel();JLabel jl3 = new JLabel( 工 號(hào) );jp3.add(jl3);jp3.add(jtf3);jp00.add(jp3);JPanel jp4 = new JPanel();JLabel jl4 = new JLabel(EngName*);jp4.add(jl4);jp4.add(jtf4);jp00.add(jp4);JPanel jp5 = new JPanel();JLabel jl5 = new JLabel(UNIT );j
18、p5.add(jl5);jp5.add(jtf5);jp00.add(jp5);JPanel jp6 = new JPanel();JLabel jl6 = new JLabel(TEAM* );jp6.add(jl6);jp6.add(jtf6);jp00.add(jp6);JPanel jp7 = new JPanel();JLabel jl7 = new JLabel(Phone* );jp7.add(jl7);jp7.add(jtf7);jp00.add(jp7);JPanel jp8 = new JPanel();JLabel jl8 = new JLabel( 區(qū)域 );jp8.a
19、dd(jl8);jp8.add(jtf8);jp00.add(jp8);JPanel jp9 = new JPanel();JLabel jl9 = new JLabel( 公交站 );jp9.add(jl9);jp9.add(jtf9);jp00.add(jp9);jf.add(jp00);JPanel jp01 = new JPanel();jta10.setText(- 用戶使用手冊(cè)- n1 、查詢：選擇一個(gè)字段，如 EngName 在文本框中輸入相應(yīng)內(nèi)容， 點(diǎn)擊查詢 n2 、 增加： 在各個(gè)文本框中輸入相應(yīng)內(nèi)容后，點(diǎn)擊增加。 n3 、 修改： 先查詢到你要的記錄， 在更改相應(yīng)內(nèi)容， 點(diǎn)
20、擊修改。 n4 、撤除：類似于修改操作 );jp01.add(jta10);jf.add(jp01);jf.setSize(700, 500);jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);jf.setVisible(true);public static void main(String args) new EmpManageSys();/SQLT具類JdbcUtil :用于實(shí)現(xiàn)數(shù)據(jù)庫(kù)連接和數(shù)據(jù)庫(kù)關(guān)閉。上面程序用到了這個(gè) 類import java.sql.*;public class JdbcUtil/load driver from f
21、ilestatictryString driverName =oracle.jdbc.driver.OracleDriver;Class.forName(driverName);catch(Exception e) e.printStackTrace(); /establish connectionpublic static Connection getConnection() Connection con = null;tryString url =jdbc:oracle:thin:192.168.0.26:1521:tarena;String usr = openlab;String pw
22、d = open123;con = DriverManager.getConnection( url,usr,pwd);catch(Exception e) e.printStackTrace(); return con;/close resultSet,statement and connectionpublic static void close(ResultSet rs,Statement stmt,Connection con) tryif(rs!=null) rs.close();catch(Exception ex) ex.printStackTrace(); try if(stmt!=null) stmt.close();catch(Exception ex) ex.printStackTrace(); tryif(con!=null) con.close();catch(Exception ex) ex.printStackTrace();
簡(jiǎn)單的JAVA員工信息管理系統(tǒng)源碼
