简单的JAVA员工信息管理系统源码.doc

1、/ 项目目标：建立员工管理系统第一个版本。/ 实现图形用户界面的员工信息查询、增、删、改；与数据库建立，并将修改结果时时保存到数据库。/ 模块：1.GUI 界面 2.数据库连接 3.查询 4.增、5 删 6 改(操作数据库）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 rs;S

2、tringBuffer sb = new StringBuffer();JTextField jtf2 = new JTextField(“张飞“,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(10);

3、JTextField jtf9 = new JTextField(10);JTextArea jta10 = new JTextArea(50, 40);public void actionPerformed(ActionEvent e) String str = e.getActionCommand();if (“查询“.equals(str) /if check the button of 查询，then go to method of searchEmp()searchEmp(); else if (“增加“.equals(str) /if check the button of 增加，

4、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();connectToDataBas

5、e();/ 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.println(con);retu

6、rn 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.getTex

7、t().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=“+

8、 jtf9.getText().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.

9、setText(sb.toString(); 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 =

10、 stmt.getUpdateCount();if (jtf2.getText() != null) jta10.setText(“添加记录成功“ + i + “条“); else jta10.setText(“带*号项为添加记录时不能为空“); catch (SQLException e1) e1.printStackTrace();public void deleteEmp() searchEmp();try stmt = con.createStatement();sql = “delete from Mstar where chineseName=“+ jtf2.getText().t

11、oLowerCase().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 Phone=“+ jtf7.getText().toLowerCase().trim() + “or region=“+ jtf8.getText

12、().toLowerCase().trim() + “or busStation=“+ jtf9.getText().toLowerCase().trim();stmt.executeUpdate(sql);int i = stmt.getUpdateCount();jta10.setText(“撤除操作成功“ + i + “条“); catch (SQLException e) e.printStackTrace();public void alterEmp() searchEmp();sql = “update Mstar set chineseName=“+ jtf2.getText()

13、.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.getText().toLowerCase().trim() + “and region=“+ jtf8

14、.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 + “条“);public void createGUI() JFrame jf = new JFrame(“员工信息管理系统“);jf.setLayo

15、ut(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(“查询“);jb11.addActionListener(this);JButton jb12 = new JButton(“增加“);jb12.addActionListener(this);jp1.add(jb11);jp1.add(jb12);jp00.add(jp1);JP

16、anel 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 * “);jp2.add(jl2);jp2.add(jtf2);jp00.add(jp

17、2);JPanel jp3 = new JPanel();JLabel jl3 = new JLabel(“工 号 “);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 “);jp5.add(jl5);jp5.add(jtf5);jp00.add(

18、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(“区域 “);jp8.add(jl8);jp8.add(jtf8);jp00.add

19、(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(“-用户使用手册- n1、查询：选择一个字段，如 EngName 在文本框中输入相应内容，点击查询n2、增加：在各个文本框中输入相应内容后，点击增加。n3、修改：先查询到你要的记录，在更改相应内容，点击修改。n4、撤除：类似于修改操作“);jp01.add(jta10);jf.ad

20、d(jp01);jf.setSize(700, 500);jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);jf.setVisible(true);public static void main(String args) new EmpManageSys();/-SQL 工具类 JdbcUtil：用于实现数据库连接和数据库关闭。上面程序用到了这个类import java.sql.*;public class JdbcUtil/load driver from file statictryString driverName =“oracle.jd

21、bc.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 pwd = “open123“;con = DriverManager.get

22、Connection(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();tryif(stmt!=null) stmt.close();catch(Exception ex)ex.printStackTrace();tryif(con!=null) con.close();catch(Exception ex)ex.printStackTrace();