modifypassword.java

以一个酒店的进销存系统为例

package com.csbook.restaurant;

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import com.csbook.restaurant.utility.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author pengtao
 * @version 1.0
 */

public class ModifyPassword extends JDialog {

  JPanel panel1 = new JPanel();
  GridLayout gridLayout1 = new GridLayout(3,2);
  JLabel jLabel1 = new JLabel();
  JPasswordField newPass2 = new JPasswordField();
  JLabel jLabel2 = new JLabel();
  JPasswordField newPass1 = new JPasswordField();
  JLabel jLabel3 = new JLabel();
  JPasswordField oriPass = new JPasswordField();
  JPanel jPanel1 = new JPanel();
  JLabel jLabel4 = new JLabel();
  JPanel jPanel2 = new JPanel();
  JButton ok = new JButton();
  CheckUser cUser=new CheckUser();

  public ModifyPassword(Frame frame, String title, boolean modal) {
   super(frame, title, modal);
   try {
     jbInit();
     pack();
   }
   catch(Exception ex) {
     ex.printStackTrace();
   }
 }

 public ModifyPassword() {
   this(null, "", false);
 }

  private void jbInit() throws Exception {
    panel1.setLayout(gridLayout1);
    jLabel1.setText("原密码：");
    jLabel2.setText("确认新密码：");
    jLabel3.setText("新密码：");
    jLabel4.setText("修改密码");
    ok.setActionCommand("jButton1");
    ok.setText("确定");
    ok.addActionListener(new ModifyPassword_ok_actionAdapter(this));
    oriPass.setText("");
    newPass1.setText("");
    getContentPane().add(panel1,  BorderLayout.CENTER);
    panel1.add(jLabel1, null);
    panel1.add(oriPass, null);
    panel1.add(jLabel3, null);
    panel1.add(newPass1, null);
    panel1.add(jLabel2, null);
    panel1.add(newPass2, null);
    this.getContentPane().add(jPanel1,  BorderLayout.NORTH);
    jPanel1.add(jLabel4, null);
    this.getContentPane().add(jPanel2, BorderLayout.SOUTH);
    jPanel2.add(ok, null);
  }

  void ok_actionPerformed(ActionEvent e) {
    char temp[]=oriPass.getPassword();
    String tempPass=new String(temp);
    char temp1[]=newPass1.getPassword();
    String pass1=new String(temp1);
    char temp2[]=newPass2.getPassword();
    String pass2=new String(temp2);
    if(tempPass.trim().equals("")||pass1.trim().equals("")||pass2.trim().equals(""))
    {
      JOptionPane.showMessageDialog(this, "请输入完整的信息", "错误",
                                    JOptionPane.WARNING_MESSAGE);
      return;
    }
    MainFrame k=(MainFrame)this.getOwner();
    String operator=k.getOperator();
    if(!cUser.isValidUser(operator,tempPass))
     JOptionPane.showMessageDialog(this,"错误的用户名或密码","错误",JOptionPane.WARNING_MESSAGE);
    else{
     if(!pass1.equals(pass2))
        JOptionPane.showMessageDialog(this,"两次输入的新密码不一致","错误",JOptionPane.WARNING_MESSAGE);
     else{
       cUser.updatePassword(operator,pass1);
       this.dispose();
       JOptionPane.showMessageDialog(this,"密码已成功修改","提示",JOptionPane.WARNING_MESSAGE);
     }
    }
  }
}

class ModifyPassword_ok_actionAdapter implements java.awt.event.ActionListener {
  ModifyPassword adaptee;

  ModifyPassword_ok_actionAdapter(ModifyPassword adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.ok_actionPerformed(e);
  }
}