mychangepasswd.java

一套基于JAVA开发的完整版航空订票系统,代码简洁,适合JAVA初学者研究

package com.tarena.abs.client;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

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

public class MyChangePasswd extends JDialog implements ActionListener{
	private static final long serialVersionUID = 523425844903633896L;
	private JLabel label0,label1,label2,label3;
	private JButton ok,cancel;
	private JTextField t0;
	private JPasswordField t1,t2,t3;
	public MyChangePasswd(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);//?
	}
	@SuppressWarnings({ "unchecked", "unchecked" })
	public void actionPerformed(ActionEvent e){
		if(e.getActionCommand().equals("修改")){
//			判断文本框中的内容是否为空
			if(t0.getText().equals("") || new String(t1.getPassword()).equals("") || new String(t2.getPassword()).equals("") || new String(t3.getPassword()).equals("")){
				JOptionPane.showMessageDialog(this,"姓名和密码不能为空！");
				t0.setText("");
				t1.setText("");
				t2.setText("");
				t3.setText("");
			}
			//判断两次输入的密码是否一样
			if(! new String(t2.getPassword()).equals(new String(t3.getPassword()))){
				JOptionPane.showMessageDialog(this,"两次输入的密码不同！");
				t0.setText("");
				t1.setText("");
				t2.setText("");
				t3.setText("");
			}
			try {
				//创建一个请求对象，该请求的类型为登录请求
				Request req=new Request("changePW");
				//向请求对象中添加数据
				req.setData("UserName",t0.getText());
				req.setData("OldPassword",new String(t1.getPassword()));
				req.setData("NewPassworld", new String(t2.getPassword()));
				//将请求对象写往服务器
				ClientMainClass.oos.writeObject(req);
				ClientMainClass.oos.flush();
				//从服务器获得一个应答对象
				Response res=(Response)ClientMainClass.ois.readObject();
				//解析应答对象中封装的数据
				Agent user=(Agent)res.getData();
				//如果返回了一个合法的代理商（登录成功）
				if(user!=null){
					//把当前代理商对象保存成全局变量
					ClientMainClass.currentUser=user;
					JOptionPane.showMessageDialog(this,"修改成功！");
					this.dispose();
					
				}else{//如果登录不成功
					JOptionPane.showMessageDialog(this,"对不起，修改失败，请重新输入！");
					t0.setText("");
					t1.setText("");
					t2.setText("");
					t3.setText("");
				}
			} catch (Exception e1) {
				e1.printStackTrace();
			}
		}
		if(e.getActionCommand().equals("取消")){
			this.dispose();
		}
	}
	

}