java socket demo

//TCPServer.javapackage msb.demo.socket;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.net.ServerSocket;import java.net.Socket;import java.util.Date;public class TCPServer {/** * @param args * @throws IOException * @throws InterruptedException  */public static void main(String[] args) throws IOException, InterruptedException {ServerSocket serverSocket = new ServerSocket(3333);while (true) {Socket socket = serverSocket.accept();Thread.sleep(2000);//read from clientDataInputStream dis = new DataInputStream(socket.getInputStream());String data = dis.readUTF();String msg =(new Date() + " accept:" + data);System.out.println("Server received:"+msg);//write to clientDataOutputStream dos = new DataOutputStream(socket.getOutputStream());dos.writeUTF(msg);dis.close();dos.close();socket.close();}}}//TCPClient.javapackage msb.demo.socket;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.net.Socket;import java.net.UnknownHostException;public class TCPClient {static int cnt = 0;/** * @param args * @throws IOException  * @throws UnknownHostException  */public static void main(String[] args) throws Exception {for(int i=0;i<5;i++)connectServer();}static void connectServer() throws Exception{Socket socket = new Socket("127.0.0.1",3333);DataOutputStream dos = new DataOutputStream(socket.getOutputStream());//write to serverdos.writeUTF("p"+ (++cnt));dos.flush();//read from serverDataInputStream dis = new DataInputStream(socket.getInputStream());String msg = dis.readUTF();System.out.println("Client received:"+msg);dos.close();dis.close();socket.close();}}