changepasswd.java

一个很详细的航空售票系统开发的例子

package com.tarena.abs.client;

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

import com.tarena.abs.model.Agent;
import com.tarena.abs.model.Request;
import com.tarena.abs.model.Response;

public class ChangePasswd extends JDialog implements ActionListener{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1063440875822708352L;
	private JLabel label0,label1,label2,label3;
	private JButton ok,cancel;
	private JTextField t0;
	private JPasswordField t1,t2,t3;
	public ChangePasswd(JFrame frame){
		super(frame,"修改密码");
		label0=new JLabel("用户名：");
		label1=new JLabel("旧密码：");
		label2=new JLabel("新密码：");
		label3=new JLabel("重复新密码：");
		
		t0=new JTextField(12);
		t1=new JPasswordField(12);
		t2=new JPasswordField(12);
		t3=new JPasswordField(12);
		
		ok=new JButton("修改");ok.addActionListener(this);
		cancel=new JButton("取消");cancel.addActionListener(this);
		init();
		showMe();
	}
	public void init(){
		JPanel p=new JPanel();
		JPanel p1=new JPanel();
		JPanel p2=new JPanel();
		JPanel p3=new JPanel();
		JPanel p4=new JPanel();
		JPanel p5=new JPanel();

		p1.setLayout(new FlowLayout(FlowLayout.LEFT));
		p2.setLayout(new FlowLayout(FlowLayout.LEFT));
		p3.setLayout(new FlowLayout(FlowLayout.LEFT));
		p4.setLayout(new FlowLayout(FlowLayout.LEFT));
		p1.add(label0);p1.add(t0);
		p2.add(label1);p2.add(t1);
		p3.add(label2);p3.add(t2);
		p4.add(label3);p4.add(t3);
		
		p5.setLayout(new FlowLayout(FlowLayout.LEFT));
		p5.add(ok);p5.add(cancel);
		
		p.setLayout(new GridLayout(4,1));
		p.add(p1);
		p.add(p2);
		p.add(p3);
		p.add(p4);
	
		this.add(p,BorderLayout.CENTER);
		this.add(p5,BorderLayout.SOUTH);
		
	}	
	
	private void showMe(){
		this.setSize(300,250);
		this.setVisible(true);
		this.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);//?
	}
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		if(e.getActionCommand().equals("修改")){
			if(t0.getText().equals("")|| new String(t1.getPassword()).equals("")||new String(t2.getPassword()).equals("")){
				JOptionPane.showMessageDialog(this,"您输入的信息不完整!");
				t0.setText("");
				t1.setText("");
				t2.setText("");
				t3.setText("");
				return;
			}
			if(!new String(t2.getPassword()).equals(new String(t3.getPassword()))){
				JOptionPane.showMessageDialog(this,"2次输入的密码不一致!");
				t0.setText("");
				t1.setText("");
				t2.setText("");
				t3.setText("");
				return;
			}try {
				Request req=new Request("changePasswd");
				req.setData("UserName",t0.getText());
				req.setData("Password",new String(t1.getPassword()));
				req.setData("NewPasswd",new String(t2.getPassword()));
				ClientMainClass.oos.writeObject(req);
				ClientMainClass.oos.flush();
				Response res=(Response)ClientMainClass.ois.readObject();
				Agent user=(Agent)res.getData();
				if(user!=null){
					JOptionPane.showMessageDialog(this,"恭喜修改密码成功!");
					this.dispose();
				}else{
					JOptionPane.showMessageDialog(this,"对不起，用户名和密码不正确，请重新输入！");
				}
			} catch (Exception e1) {
				e1.printStackTrace();
			}
			
			
		}else if(e.getActionCommand().equals("取消")){
			this.dispose();
		}
	}
}