passworddialogframe.java

Java灵感编程1-101之41-60

package passworddialog;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;

/**
 * <p>Title: Password Dialog Demo</p>
 * <p>Description: This is a Password Dialog demo</p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: d6-125</p>
 * @author Liujun
 * @version 1.0
 */

public class PasswordDialogFrame extends JFrame {
  JPanel contentPane;
  JButton jButton1 = new JButton();
  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  //定义一个密码对话框的私有变量
  private PasswordDialog dialog = null;
  //Construct the frame
  public PasswordDialogFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(PasswordDialogFrame.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    jButton1.setText("连接数据库");
    jButton1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton1_actionPerformed(e);
      }
    });
    contentPane.setLayout(xYLayout1);
    this.setSize(new Dimension(400, 129));
    this.setTitle("Password Dialog Frame Demo");
    jLabel1.setText("用户名 ＝＝");
    jLabel2.setText("密码＝＝");
    contentPane.add(jLabel1,      new XYConstraints(49, 51, 305, 16));
    contentPane.add(jLabel2,  new XYConstraints(49, 76, 305, 16));
    contentPane.add(jButton1, new XYConstraints(0, 0, 400, -1));
  }
  //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) {
         ConnectInfo transfer
            = new ConnectInfo("yourname", "password");//创建一个传递参数类
         if (dialog == null)
            dialog = new PasswordDialog(this);//创建对话框
         if (dialog.showDialog(transfer))//调用连接窗对话框口，并传递参数
         {  String uname = transfer.username;//交换用户名数据
            String pwd = transfer.password;//交换密码数据
            jLabel1.setText("用户名 ＝＝"+uname);//显示用户名
            jLabel2.setText("密  码 ＝＝"+pwd);//显示密码内容
            validate();//刷新屏幕
         }
  }
}

class ConnectInfo//用于传递参数
{  public String username;
   public String password;
   public ConnectInfo(String u, String p)
      { username = u; password = p; }
}