logindialog.java

航空定票系统：户端功能模块：用户登录模块

package com.tarena.abs.view.client;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.Socket;
import com.tarena.abs.model.*;

public class LoginDialog extends JDialog implements ActionListener{
	JLabel[] label;
	JTextField name;
	JPasswordField password;
	JButton ok;
	JButton cancel;
	JButton register;
	JPanel jp1,jp2,jp3;
	Socket socket;
	public LoginDialog(JFrame jf,Socket s){
		super(jf,"航班机票预定系统--客户登录",true);
		this.socket=s;
		label=new JLabel[3];
		label[0]=new JLabel("用  户  名：");
		label[1]=new JLabel("密        码：");
		label[2]=new JLabel("客户登录");
		name=new JTextField(20);
		password=new JPasswordField(20);
		ok=new JButton("登录");
		cancel=new JButton("取消");
		register=new JButton("注册新用户");
		jp1=new JPanel();
		jp2=new JPanel();
		jp3=new JPanel();
		init();
		setAllFont();
		addEventHandle();	
	}
	private void init(){
		jp1.setLayout(new FlowLayout(FlowLayout.CENTER,10,20));
		jp1.add(label[2]);
		this.add(jp1,BorderLayout.NORTH);
		jp2.setLayout(new FlowLayout(FlowLayout.CENTER,5,10));
		jp2.add(label[0]);jp2.add(name);
		jp2.add(label[1]);jp2.add(password);
		this.add(jp2,BorderLayout.CENTER);
		jp3.setLayout(new FlowLayout(FlowLayout.CENTER,50,20));
		jp3.add(ok);jp3.add(cancel);jp3.add(register);
		this.add(jp3,BorderLayout.SOUTH);
	}
	private void setAllFont(){
		Font f1=new Font("",Font.BOLD,20);
		Font f2=new Font("仿宋",Font.BOLD,30);
		for(int i=0;i<label.length-1;i++){
			label[i].setFont(f1);
		}
		label[label.length-1].setFont(f2);
		label[label.length-1].setForeground(Color.RED);
		name.setFont(f1);
		password.setFont(f1);
		ok.setFont(f1);
		cancel.setFont(f1);
		register.setFont(f1);
	}
	public void showMe(){
		this.setSize(540,360);
		this.setVisible(true);
		this.setResizable(false);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
	private void addEventHandle(){
		ok.addActionListener(this);
		cancel.addActionListener(this);
		register.addActionListener(this);
	}
	public void actionPerformed(ActionEvent e) {
		if(e.getActionCommand().equals("登录")){
			if(name.getText().equals("") || new String(password.getPassword()).equals("")){
				JOptionPane.showMessageDialog(this,"姓名和密码不能为空！");
				return;
			}
			//此处将要添加连接服务器的代码。
			
		}else if(e.getActionCommand().equals("取消")){
			System.exit(0);
		}else if(e.getActionCommand().equals("注册新用户")){
			new RegisterDialog(this,socket).showMe();
		}	
	}
}