client5.java

介绍java的网络编程

import java.awt.*;
import java.net.*;
import java.io.*;
import java.awt.event.*;
public class Client5 extends Frame implements Runnable{
  private TextField nameBox=new TextField("<捞抚>");
  private TextArea msgView=new TextArea();
  private TextField sendBox=new TextField();
  private BufferedReader reader;
  private PrintWriter writer;
  private Socket socket;
  public Client5(String title){
    super(title);
    msgView.setEditable(false);
    add(nameBox,"North");
    add(msgView,"Center");
    add(sendBox,"South");
    sendBox.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent ae){
        try{
          writer.println(nameBox.getText()+" : "+ sendBox.getText());
          sendBox.setText("");
        }catch(Exception ie){}
      }
    });
    pack();
  }
  public void run(){
    while(true){
      try{
         msgView.append(reader.readLine()+"\n");
      }catch(IOException ie){}  
    } 
  }
  private void connect(){
    try{
      msgView.append("辑滚家南苞狼 楷搬阑 矫档钦聪促.\n");
      socket=new Socket("127.0.0.1", 7777);
      msgView.append("盲泼 霖厚啊 肯丰登菌嚼聪促.\n");
      reader=new BufferedReader(new InputStreamReader(socket.getInputStream()));
      writer=new PrintWriter(socket.getOutputStream(), true); 
      new Thread(this).start();
    }catch(Exception e){
      msgView.append("楷搬 角菩.."); 
    }
  }
  public static void main(String[] args){
    Client5 client=new Client5("盲泼");
    client.setVisible(true);
    client.connect();
  }
}