import java.net.*;
import java.io.*;
public class McastServer{
    public static void main(String[] args) throws Exception{
        //創(chuàng)建一個(gè)多點(diǎn)發(fā)送套接字
        MulticastSocket socket = new MulticastSocket ();
        //創(chuàng)建一個(gè)空數(shù)據(jù)報(bào)
        InetAddress address=InetAddress.getByName("230.0.0.4");
        byte[] b = new byte[0];
        DatagramPacket dp = new DatagramPacket(b,b.length,address,2345);
        for(int i=0;i<10000;i++){
            byte[] data = new String("產(chǎn)生數(shù)據(jù)"+i).getBytes();
            dp.setData(data,0,data.length);
            socket.send(dp); 
        }
        socket.close();
    }
}