servertwo.java

一个简单聊天室实现,不错的哦

import java.io.*;import java.net.*;
import java.util.*;
public class ServerTwo 
{  
  public static void main(String args[])
  {  ServerSocket server=null;Server_thread thread;
      Socket you=null;
    while(true) 
    { try{ server=new ServerSocket(4331);}
      catch(IOException e1) {System.out.println("正在监听"+"ERRO:"+e1);} 
      try{ you=server.accept();}
      catch (IOException e)
      {System.out.println("正在等待客户");}
      if(you!=null) 
      {new Server_thread(you).start();   }
      else {continue;}//继续等待客户的呼叫
    }
  }
}
class Server_thread extends Thread
{  Socket socket;
   DataOutputStream out=null;DataInputStream  in=null;
   String s=null;
   Server_thread(Socket t)
       { socket=t;
         try {in=new DataInputStream(socket.getInputStream());
             out=new DataOutputStream(socket.getOutputStream());
             }
         catch (IOException e)
         {}
       }  
  public void run()        
  { while(true)
    { try{s=in.readUTF();// 通过使用in读取客户放入"线路"里的信息
            }
       catch (IOException e) {System.out.println("ERRO:"+e);}
       try {if(s.equals("bye"))
             {out.writeUTF(s);socket.close() ; }//客户以离开
else{ try{out.writeUTF("我是服务器你对我说："+s);}
                                      //通过 out向"线路"写入信息
                   catch (IOException e) {}
                  }
           }
       catch (IOException e) {}
     }
  } 
}