Java向飞秋(FeiQ)发送消息

package test;

import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Date;

public class TestFeiQ {
	public static void main(String[] args) {
		DatagramSocket socket;
		InetAddress address;
		long IPMSG_SENDMSG = 0x00000020;
		String SENDER = "乱 7 8 糟";
		String HOST = "Localhost";
		String MSG_CONTENT = "Hello 世界!";
		try {
			socket = new DatagramSocket();
			address = InetAddress.getByName("192.168.0.145");// 发送给消息的地址

			byte[] buffer = ("1:" + new Date().getTime() + ":" + SENDER + ":"
					+ HOST + ":" + IPMSG_SENDMSG + ":" + MSG_CONTENT)
					.getBytes("gbk");
			DatagramPacket packet = new DatagramPacket(buffer, buffer.length,
					address, 2425);
			socket.send(packet); // 发送报文
			packet = new DatagramPacket(buffer, buffer.length);
			socket.receive(packet);// 接收回应
			String message = new String(packet.getData()); // 得到报文信息
			System.out.println(message); // 显示对方返回的信息
		} catch (UnknownHostException e) {
			e.printStackTrace();
		} catch (SocketException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}