简单socket通信

描述：启动服务器端，客户端连接服务器端成功之后，服务器端发送“你好，我是服务器，欢迎你的到来！”，客户端发送“你好，我是客户端！”

package com.java.socket;import java.io.IOException;import java.net.ServerSocket;import java.net.Socket;public class Server {public static void main(String[] args) {try {System.out.println("服务器准备启动..., 等待客户端的连接...");ServerSocket ss = new ServerSocket(2002);//while(true){Socket socket = ss.accept();System.out.println(socket);Thread thread = new Thread(new MyRunnable(socket));thread.start();//}} catch (IOException e) {e.printStackTrace();}}}

package com.java.socket;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.Socket;public class MyRunnable implements Runnable {private Socket socket;public MyRunnable(Socket socket) {this.socket = socket;}@Overridepublic void run() {InputStream inStream = null;OutputStream outStream = null;int count = 0;try{inStream = socket.getInputStream();outStream = socket.getOutputStream();count = inStream.available();byte[] strByte = new byte[count];inStream.read(strByte);System.out.println(new String(strByte));String outStr = "你好，我是服务器，欢迎你的到来！";outStream.write(outStr.getBytes());outStream.flush();}catch(IOException e){e.printStackTrace();}finally{try {if(inStream != null){inStream.close();}if(outStream != null){outStream.close();}if(socket != null){socket.close();}} catch (IOException e) {e.printStackTrace();}}}}

package com.java.socket;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.Socket;import java.net.UnknownHostException;public class Client {public static void main(String[] args) {try {Socket socket = new Socket("127.0.0.1", 2002);socket.setKeepAlive(true);socket.setSoTimeout(30*1000);InputStream inStream = socket.getInputStream();OutputStream outStream = socket.getOutputStream();String outStr = "你好，我是客户端！";outStream.write(outStr.getBytes());outStream.flush();socket.shutdownOutput();InputStreamReader isr = new InputStreamReader(inStream);BufferedReader br = new BufferedReader(isr);String str = null;while((str = br.readLine()) != null){System.out.println(str);}inStream.close();outStream.close();socket.close();} catch (UnknownHostException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}}

测试结果：

server端：

服务器准备启动..., 等待客户端的连接...
Socket[addr=/127.0.0.1,port=55204,localport=2002]
你好，我是客户端！

client端：

你好，我是服务器，欢迎你的到来！