loginframe.java~19~

这是本人刚刚得到的JBuilder9软件开发项目实践的源码

package card;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
import javax.swing.JPasswordField;
import com.borland.dx.sql.dataset.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class loginFrame extends JFrame {
  JPanel contentPane;
  BorderLayout borderLayout1 = new BorderLayout();
  JPanel jPanel1 = new JPanel();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JPasswordField jTextField2 = new JPasswordField();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  Database database1 = new Database();
  QueryDataSet queryDataSet1 = new QueryDataSet();

  //Construct the frame
  public loginFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(400, 300));
    this.setTitle("欢迎访问");
    jPanel1.setLayout(null);
    jLabel1.setFont(new java.awt.Font("Serif", 1, 40));
    jLabel1.setForeground(Color.blue);
    jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel1.setText("欢迎访问信用卡系统");
    jLabel1.setBounds(new Rectangle(0, 20, 400, 40));

    jLabel2.setFont(new java.awt.Font("Serif", 1, 16));
    jLabel2.setForeground(Color.blue);
    jLabel2.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel2.setText("卡号：");
    jLabel2.setBounds(new Rectangle(100, 100, 60, 25));

    jLabel3.setFont(new java.awt.Font("Serif", 1, 16));
    jLabel3.setForeground(Color.blue);
    jLabel3.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel3.setText("密码：");
    jLabel3.setBounds(new Rectangle(100, 160, 60, 25));

    jTextField1.setText("");
    jTextField1.setBounds(new Rectangle(160, 100, 140, 25));

    jTextField2.setText("");
    jTextField2.setBounds(new Rectangle(160, 160, 140, 25));

    jButton1.setBounds(new Rectangle(120, 220, 70, 25));
    jButton1.setText("确定");
    jButton1.addActionListener(new loginFrame_jButton1_actionAdapter(this));

    jButton2.setBounds(new Rectangle(210, 220, 70, 25));
    jButton2.setText("重置");
    jButton2.addActionListener(new loginFrame_jButton2_actionAdapter(this));

    Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
    String url = "jdbc:microsoft:sqlserver://keweixing:1433;DatabaseName=dbcard";
    String username= "sa";
    String password= "";
    con = DriverManager.getConnection(url,username,password);

    loginQuery = "Select * from card where CardID = ? and Password =?";
    loginStmt = con.prepareStatement(loginQuery);

    contentPane.add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jLabel1, null);
    jPanel1.add(jLabel2, null);
    jPanel1.add(jTextField1, null);
    jPanel1.add(jButton1, null);
    jPanel1.add(jButton2, null);
    jPanel1.add(jLabel3, null);
    jPanel1.add(jTextField2, null);
  }
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  void jButton1_actionPerformed(ActionEvent e) {
    try{
      CardID = jTextField1.getText();
      loginStmt.setString(1, CardID);
      loginStmt.setString(2, jTextField2.getText());
      ResultSet rs = loginStmt.executeQuery();
      if(rs.next()){
        eventFrame eventFrame1 = new eventFrame(CardID,con);
        eventFrame1.setSize(new Dimension(400, 300));
        this.dispose();
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension frameSize = eventFrame1.getSize();
        eventFrame1.setState(eventFrame1.NORMAL);
        eventFrame1.setLocation( (screenSize.width - frameSize.width) / 2,
                                (screenSize.height - frameSize.height) / 2);
        eventFrame1.show();
      }
    }
    catch(SQLException ex) {
      System.out.print("系统错误，请重新运行。");
    }
  }

  void jButton2_actionPerformed(ActionEvent e) {
    jTextField1.setText("");
    jTextField2.setText("");
  }

  private String CardID;
  private String loginQuery;
  private PreparedStatement loginStmt;
  private Connection con;
}

class loginFrame_jButton1_actionAdapter implements java.awt.event.ActionListener {
  loginFrame adaptee;

  loginFrame_jButton1_actionAdapter(loginFrame adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}

class loginFrame_jButton2_actionAdapter implements java.awt.event.ActionListener {
  loginFrame adaptee;

  loginFrame_jButton2_actionAdapter(loginFrame adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton2_actionPerformed(e);
  }
}