socket 编程

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1：服务器端代码：

package com.serverCode.test;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.net.ServerSocket;import java.net.Socket;public class ServerCode {/** * @param args *///设置端口号public static int portNo = 3333;public static void main(String[] args) throws IOException {// TODO Auto-generated method stubServerSocket s = new ServerSocket(portNo);//用一个端口来实例化serverSocket 对象-》服务器可以根据这个端口监听端口发送过来的链接请求System.out.println("the server is start "+s);Socket socket = s.accept();//监听端口上发送过来的链接请求try{System.out.println("accept the client :"+socket);

                        //利用返回的socket对象进行读写操作BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);while(true){String str = in.readLine();if(str.equals("byebye")){break;}System.out.println("in server revived the info"+str);out.println(str);}}finally{System.out.println("closee the server and the io");socket.close();s.close();}}}

2：客户端代码

package com.tcp.test;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.net.InetAddress;import java.net.Socket;import java.net.UnknownHostException;public class ClientCode {/** * @param args */static String clientName = "Mike";//端口号public static int portNo = 3333;public static void main(String[] args) throws IOException {// TODO Auto-generated method stubInetAddress addr = InetAddress.getByName("localhost");Socket socket = new Socket(addr,portNo);//利用服务器的ip地址和端口号实例化socket对象try{

                       //将需要发送的io填充到IO对象里面System.out.println("socket ="+socket);BufferedReader in = new BufferedReader(new InputStreamReader( socket.getInputStream()));PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), true);        out.println("hello server,I am"+clientName);        String str = in.readLine();System.out.println(str);out.println("byebye");}finally{System.out.println("close the client Sockte an io");socket.close();}}}

用run as java application 方法运行服务端和客服端