好久没写socket代码了，也忘了八九成了……话不多说！直接上代码吧！

Server服务

package test1;

import java.io.*;

import java.net.*;

public class MyServer {

public static void main(String[] args) throws IOException{

ServerSocket server = new ServerSocket(9999);

System.err.println("服务码-SP：" + server.getLocalSocketAddress());

System.err.println("启动服务成功,端口： " + server.getLocalPort());

System.err.println("监听器启动成功……");

Socket client = server.accept();

BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));

PrintWriter out = new PrintWriter(client.getOutputStream());

while(true){

String str;

str = in.readLine();

System.out.println(str);

out.println("你好： " + str);

out.flush();

if(str.equals("end"))

break;

}

client.close();

}

}

Client客户端

package test1;

import java.net.*;

import java.io.*;

public class Client{

static Socket server;

public static void main(String[] args)throws Exception{

server = new Socket(InetAddress.getLocalHost(),9999); //xxx.xxx.x.xxxIP地址

System.err.print("请输入：");

BufferedReader in=new BufferedReader(new InputStreamReader(server.getInputStream()));

PrintWriter out=new PrintWriter(server.getOutputStream());

BufferedReader wt=new BufferedReader(new InputStreamReader(System.in));

while(true){

String str=wt.readLine();

out.println(str);

out.flush();

if(str.equals("end")){

break;

}

System.out.println(in.readLine());

}

server.close();

}

}