multicastclient.java

java的书上例子

//例16.11 客户方程序：MuliticastClient.java
import java.io.*;
import java.net.*;
import java.util.*;

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

		MulticastSocket socket =new MulticastSocket (4446);
		InetAddress address =InetAddress.getByName("230.0.0.1");
		socket.joinGroup(address);

		DatagramPacket packet;

		//get a few quotes
		for(int i =0; i<5; i++){
			byte[] buf= new byte[256];
			packet=new DatagramPacket(buf,buf.length);
			socket.receive(packet);

			String received= new String (packet.getData());
  		System.out.println ("Quote of the Moment:" +received);
		}

		socket.leaveGroup(address);
		socket.close();
	}
}