Java的单线程Socket通信

package  com.wangtong.network;   
  
import  java.io.BufferedReader;   
import  java.io.IOException;   
import  java.io.InputStreamReader;   
import  java.io.PrintWriter;   
import  java.net.ServerSocket;   
import  java.net.Socket;   
  
public   class  ServerSocket {   
  
     public   static   void  main(String[] args) {   
         try  {   
            createServerSocket();   
        }  catch  (IOException e) {   
             // TODO Auto-generated catch block   
            e.printStackTrace();   
        }   
    }   
  
     private   static   void  createServerSocket()  throws  IOException {   
        ServerSocket serverSocket =  new  ServerSocket( 8189 );   
        Socket socket = serverSocket.accept(); // wait for client connection   
         while  ( true ) {   
            BufferedReader in =  new  BufferedReader( new  InputStreamReader(socket   
                    .getInputStream()));   
            PrintWriter out =  new  PrintWriter(socket.getOutputStream());   
             while  ( true ) {   
                String str = in.readLine();   
                System.out.println( "server:"  + str);   
                out.println( "client receive"  + str);   
                out.flush();   
                 if  (str.equals( "exit" ))   
                     break ;   
            }   
            socket.close();   
  
        }   
    }   
  
}   

 package com.wangtong.network;

  
import  java.io.BufferedReader;   
import  java.io.IOException;   
import  java.io.InputStream;   
import  java.io.InputStreamReader;   
import  java.io.OutputStream;   
import  java.io.PrintWriter;   
import  java.net.Socket;   
import  java.net.UnknownHostException;   
import  java.util.Scanner;   
  
  
public   class  ClientSocket {   
     private   static   final  String URL =  "localhost" ;   
  
     private   static   final   int  PORT =  8189 ;   
  
  
     /**  
     * create client socket  
     *   
     * @throws IOException  
     * @throws UnknownHostException  
     *   
     */   
     private   static   void  createClientSocket()  throws  UnknownHostException,   
            IOException {   
        Socket clientSocket =  new  Socket(URL, PORT);   
        BufferedReader in =  new  BufferedReader( new  InputStreamReader(   
                clientSocket.getInputStream()));   
        PrintWriter out =  new  PrintWriter(clientSocket.getOutputStream());   
        BufferedReader wt =  new  BufferedReader( new  InputStreamReader(System.in));   
         while  ( true ) {   
            String str = wt.readLine();   
            out.println( "client send:"  + str);   
            out.flush();   
             if  (str.equals( "end" )) {   
                 break ;   
            }   
            System.out.println(in.readLine());   
        }   
        clientSocket.close();   
  
    }   
  
     public   static   void  main(String[] args) {   
  
         try  {   
            createClientSocket();   
        }  catch  (UnknownHostException e) {   
             // TODO Auto-generated catch block   
            e.printStackTrace();   
        }  catch  (IOException e) {   
             // TODO Auto-generated catch block   
            e.printStackTrace();   
        }   
    }   
}   

  转：http://wangtong40.iteye.com/blog/50628