frame3.java

是个好东西

import java.awt.*;
import javax.swing.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.io.IOException;
import java.net.Socket;
import java.io.DataOutputStream;
import java.io.DataInputStream;
import javax.swing.event.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;

public class Frame3 extends JFrame {
  Socket socket;
  JPanel contentPane;
  JLabel jLabel1 = new JLabel();
  JTextField loginname = new JTextField();
  JLabel jLabel2 = new JLabel();
  JTextField password = new JTextField();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  DataOutputStream outstream;
  DataInputStream  instream;
  String str;
   int cout;
  String get,send;
    byte[] buf=new byte[2555];

  public Frame3() {
    try {
      setDefaultCloseOperation(EXIT_ON_CLOSE);
      jbInit();
    }
    catch (Exception exception) {
      exception.printStackTrace();
    }
  }

  private void jbInit() throws Exception {
    contentPane = (JPanel) getContentPane();
    contentPane.setLayout(null);
    setSize(new Dimension(230, 200));
    setTitle("登录窗口");
    jLabel1.setText("姓名");
    jLabel1.setBounds(new Rectangle(23, 7, 124, 21));
    loginname.setText("");
    loginname.setBounds(new Rectangle(21, 32, 177, 22));
    jLabel2.setText("密码");
    jLabel2.setBounds(new Rectangle(21, 56, 175, 21));
    password.setText("");
    password.setBounds(new Rectangle(20, 81, 181, 30));
    jButton1.setBounds(new Rectangle(18, 122, 69, 23));
    jButton1.setText("登陆");
    jButton1.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton1_actionPerformed(e);
      }
    });
    jButton2.setBounds(new Rectangle(138, 124, 69, 23));
    jButton2.setText("取消");
    jButton2.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton2_actionPerformed(e);
      }
    });
    contentPane.add(jLabel1);
    contentPane.add(loginname);
    contentPane.add(jLabel2);
    contentPane.add(password);
    contentPane.add(jButton1);
    contentPane.add(jButton2);
    setVisible(true);
  }

  public void jButton1_actionPerformed(ActionEvent e) {
  
   try
     { 
        
         socket=new Socket("localhost",9999);
                  
               
            }
catch(IOException a)
{
    System.out.println(a);
}
  
  
       Client client=new Client();
       client.start();
        dispose();
  
      
    }

  public void jButton2_actionPerformed(ActionEvent e) {
    System.exit(0);
  }
  public static void main(String args[])
  {new Frame3();}


 class Client  extends JFrame implements Runnable
{ 
  
  JPanel contentPane;
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JTextArea chat = new JTextArea();
  JButton sendmessage = new JButton();
  JLabel jLabel3 = new JLabel();
  TextArea message = new TextArea();
  TextArea people = new TextArea();
  JTextArea jTextArea4 = new JTextArea();
  Thread thread;
  
 

  public Client()
    {
     addWindowListener(
        new WindowAdapter()  
        {
            public void Stop()
            {
             try{
              	
              outstream.close();
              instream.close();
              socket.close();}
              catch(IOException e)
              {
              	System.out.println(e);
              	}
            	}  
            public void windowClosing(WindowEvent e)
            {
              
               System.exit(0);}
        }
                );
    contentPane = (JPanel) getContentPane();
    contentPane.setLayout(null);
    setSize(new Dimension(420, 330));
    setTitle("Frame Title");
    jLabel1.setToolTipText("");
    jLabel1.setText(" 欢迎使用!");
    jLabel1.setBounds(new Rectangle(166, 12, 79, 26));
    jLabel2.setText("上线人:");
    jLabel2.setBounds(new Rectangle(281, 8, 106, 30));
    chat.setBounds(new Rectangle(127, 247, 172, 28));
    sendmessage.setBounds(new Rectangle(315, 247, 78, 31));
    sendmessage.setText("发送");
    sendmessage.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) 
      {
         Sendmessage();
      }
    });
    jLabel3.setText(" 消息:");
    jLabel3.setBounds(new Rectangle(76, 245, 39, 34));
    message.setBounds(new Rectangle(16, 49, 241, 171));
    people.setBounds(new Rectangle(273, 48, 108, 169));
    
    jTextArea4.setBounds(new Rectangle(19, 13, 135, 23));
    contentPane.add(jLabel1);
    contentPane.add(chat);
    contentPane.add(sendmessage);
    contentPane.add(jLabel3);
    contentPane.add(message);
    contentPane.add(people);
    contentPane.add(jTextArea4);
    contentPane.add(jLabel2);
    setVisible(true);
    jTextArea4.setText(loginname.getText());
    
     try
     {
     	 outstream=new DataOutputStream(socket.getOutputStream());
     	 str=loginname.getText();
     	 outstream.writeUTF(str+"  欢迎光临");
     }
     catch(IOException e)
     {
     	System.out.println(e);
     }
    }
    
public void Sendmessage()
{
	
   
   
    try
      {

         //socket=new Socket("localhost",9999);
           outstream=new DataOutputStream(socket.getOutputStream());
           instream=new DataInputStream(socket.getInputStream());
            send=chat.getText();
                 outstream.writeUTF(str+"说:>"+send);
                 chat.setText(""); 
                 message.setText("");
                 
       	         get=instream.readUTF();
                 if(get.substring(get.length()-6).equals("  欢迎光临"))
                 {
                 	
                 	people.append(get);
                 }
                 else        
                 {
                 	message.append(get);
                 }
             
      }
catch(IOException e)
{
    System.out.println(e);
}
    	
    	}
    
 public void run()
{


}
void start()
{
   thread=new Thread(this);
   thread.start();
}
}
}
/*class Messagebox extends JFrame {
    JPanel notePane;
    JLabel notice = new JLabel();
    public Messagebox(String s) 
    {
    	
        notePane = (JPanel) getContentPane();
        notePane.setLayout(null);
        setSize(new Dimension(350, 200));
        setTitle("提示");
        notice.setFont(new java.awt.Font("宋体-方正超大字符集", Font.PLAIN, 35));
        notice.setText("请注意:"+s);
        notice.setBounds(new Rectangle(9, 10, 350, 154));
        notePane.setBackground(new Color(255, 224, 203));
        notePane.add(notice);
        setVisible(true);
        new Client();
    }
    
}*/