udpsender.java

实现简单的通信功能,让自己掌握socket编程

package com.tarena.chat1;
import java.io.*;
import java.net.*;

public class UDPSender extends Sender {
	private MulticastSocket ms;
	private InetAddress group;
	public UDPSender(MulticastSocket ms, 
			InetAddress group, String user) {
		super(user);
		this.ms = ms;
		this.group = group;
	}
	protected void send(byte[] data) {
		try {
			DatagramPacket dp = new DatagramPacket(data, 
					data.length, group,9998);
			ms.send(dp);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}