new.java

JAVA的高级应用以及网络编程

/** =================================================== 
* Title: New.java  
* Created: [2007-6-11 20:18:53] by  作者 
*=====================================================
* Copyright:  Copyright (c)　成都信息工程学院, 2007-2008
* =====================================================
* Description: 实现客户端登录窗口
*=====================================================
*Modification Hisytory: 
*1. 2007-6-11,作者创建了此文件
*
*/ 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.net.*;
import java.io.*;

/** 
*<p> New</p> 
* 
* 客户端登录模块的实现
* @author 
* @version 
*/ 
public class New extends JFrame {//登录窗口类
	JPanel contentPane;
	//*****************
	String server;//服务器名
	int serport;//端口
	private Socket socket;
	private BufferedReader in;//输入输出流
	private PrintWriter out;
	//***********//程序界面
	JPanel jPanel1 = new JPanel();
	JLabel jLabel1 = new JLabel();
	JLabel jLabel2 = new JLabel();
	JTextField jicq = new JTextField();
	JLabel jLabel3 = new JLabel();
	JPasswordField password = new JPasswordField();
	JPanel jPanel2 = new JPanel();
	JButton login = new JButton();
	JButton newuser = new JButton();
	JButton quit = new JButton();
	JLabel jLabel6 = new JLabel();
	JTextField servername = new JTextField();
	JLabel jLabel7 = new JLabel();
	JTextField serverport = new JTextField();
	//构造方法
	public New() {
		enableEvents(AWTEvent.WINDOW_EVENT_MASK);
		try {   jbInit();//构造界面，实现登录功能
			server=servername.getText().toString().trim();//获取服务器IP
			serport=Integer.parseInt(serverport.getText().trim());//获取服务器端口号
		} catch(Exception e) { e.printStackTrace(); }
	}//构造方法end
	
	/** 
	* jbInit方法的功能描述 
	* 构造界面，实现登录功能
	* @param
	* @return void
	* @throws Exception
	*/ 
	private void jbInit() throws Exception  {
		contentPane = (JPanel) this.getContentPane();
		contentPane.setLayout(null);
		this.setResizable(false);
		this.setSize(new Dimension(344, 245));
		this.setTitle("登录窗口");
		//contentPane.add(text, null);
		jPanel1.setBounds(new Rectangle(2, 3, 348, 110));
		jPanel1.setLayout(null);
		jLabel1.setText("请输入你的信息:");
		jLabel1.setBounds(new Rectangle(5, 7, 109, 18));
		jLabel2.setText("你的Jicq");
		jLabel2.setBounds(new Rectangle(7, 66, 58, 18));
		jicq.setBounds(new Rectangle(68, 65, 97, 22));
		jLabel3.setText("你的密码");
		jLabel3.setBounds(new Rectangle(173, 66, 67, 18));
		password.setBounds(new Rectangle(237, 63, 94, 22));
		jPanel2.setBounds(new Rectangle(8, 154, 347, 151));
		jPanel2.setLayout(null);
		login.setText("登录");
		login.setBounds(new Rectangle(5, 27, 79, 29));
		login.addMouseListener(new java.awt.event.MouseAdapter() {
			public void mouseClicked(MouseEvent e) {
			login_mouseClicked(e);//"登录"按钮事件处理
			}
		});
		newuser.setText("新建");
		newuser.setBounds(new Rectangle(118, 28, 79, 29));
		newuser.addMouseListener(new java.awt.event.MouseAdapter() {
			public void mouseClicked(MouseEvent e) {
				newuser_mouseClicked(e);//"新建"按钮事件处理
			}
		});
		quit.setText("退出");
		quit.setBounds(new Rectangle(228, 26, 79, 29));
		quit.addMouseListener(new java.awt.event.MouseAdapter() {
			public void mouseClicked(MouseEvent e) {
				quit_mouseClicked(e);//"退出"按钮事件处理
			}
		});
		jLabel6.setText("服务器");
		jLabel6.setBounds(new Rectangle(20, 132, 41, 18));
		servername.setText("0.0.0.0");
		servername.setBounds(new Rectangle(73, 135, 102, 22));
		jLabel7.setText("端口");
		jLabel7.setBounds(new Rectangle(191, 137, 41, 18));
		serverport.setText("8080");
		serverport.setBounds(new Rectangle(241, 131, 90, 30));
		contentPane.add(jPanel1, null);
		jPanel1.add(jLabel1, null);
		jPanel1.add(jLabel2, null);
		jPanel1.add(jicq, null);
		jPanel1.add(jLabel3, null);
		jPanel1.add(password, null);
		contentPane.add(jPanel2, null);
		jPanel2.add(login, null);
		jPanel2.add(quit, null);
		jPanel2.add(newuser, null);
		contentPane.add(jLabel6, null);
		contentPane.add(servername, null);
		contentPane.add(jLabel7, null);
		contentPane.add(serverport, null);
	}//jbInit方法定义结束
	
	protected void processWindowEvent(WindowEvent e) {//窗口关闭事件处理
		super.processWindowEvent(e);
		if (e.getID() == WindowEvent.WINDOW_CLOSING) {
			System.exit(0);
		}
	}
	
	public static void main(String[] args) {//主程序
		New f=new New();
		f.setVisible(true);
	}

	void login_mouseClicked(MouseEvent e) {//登录按扭事件处理
		try{Socket socket=new Socket(InetAddress.getByName(server),serport);//连接服务器
		BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
		PrintWriter out=new PrintWriter(new BufferedWriter(
			new OutputStreamWriter(socket.getOutputStream())),true);
		out.println("login");//告诉服务器我要登录
		out.println(jicq.getText());
		out.println(password.getPassword());

		String str=" ";
		//do{
        str=in.readLine().trim();//从服务器读取消息
        //如果失败就告诉出错
		if(str.equals("false")) 
			JOptionPane.showMessageDialog(this,"对不起，出错了:-(","ok",JOptionPane.INFORMATION_MESSAGE);
		else{//如果成功就打开主程序
     	  this.dispose();
     	  int g=Integer.parseInt(jicq.getText());
     	  MainWin f2=new MainWin(g,server,serport);//wen 6.11注
     	  f2.setVisible(true);
		}

        //System.out.println("\n");
        //}while(!str.equals("ok"));
		}catch(IOException e1){}
	}//登录按扭事件处理结束

	void newuser_mouseClicked(MouseEvent e) {//新建用户按纽事件处理
		this.dispose();
		JDialog d=new Register(server,serport);//打开新建窗口
		d.pack();
		d.setLocationRelativeTo(this);
		d.setSize(400,400);
		d.show();
	}//新建用户按纽事件处理结束

	void quit_mouseClicked(MouseEvent e) {//关闭按扭
		this.dispose();
		System.exit(0);
	}//关闭按扭结束

} //New类定义结束