updclient.java

用UDP协议进行传输

import java.io.*;
import java.net.*;

class UDPClient{
	public static void main(String args[]) throws Exception{
		DatagramSocket clientSocket = new DatagramSocket(6789);
		byte[] receiveData = new byte[1024];
	while(true){
		DatagramPacket receivePacket = new DatagramPacket(receiveData,receiveData.length);
		clientSocket.receive(receivePacket,receiveData.length);
		String received = new String(receivePacket.getData());
		System.out.println("From Server "+received);
		}
	}
}