java代码练习work148

work148.java

package test08;import java.net.DatagramPacket;
import java.net.InetAddress;
import java.net.MulticastSocket;//UDP程序设计&＃xff0c;广播端
public class work148 extends Thread
{String weather1 &＃61; "地振高冈&＃xff0c;一派溪山千古秀&＃xff1b;\n门朝大海&＃xff0c;三河河水万年流。";int port &＃61; 9898;InetAddress ipAddress &＃61; null;MulticastSocket socket1 &＃61; null;public work148(){try{ipAddress &＃61; InetAddress.getByName("224.255.1.1");socket1 &＃61; new MulticastSocket(port);socket1.setTimeToLive(1); //发送范围本地网络socket1.joinGroup(ipAddress);} catch (Exception e){e.printStackTrace();}}public void run(){while (true){DatagramPacket packet1 &＃61; null;byte[] data &＃61; weather1.getBytes();packet1 &＃61; new DatagramPacket(data, data.length,ipAddress,port);System.out.println(new String(data));try{socket1.send(packet1);sleep(2000);} catch (Exception e){e.printStackTrace();}}}public static void main(String[] args){work148 udp1 &＃61; new work148();udp1.start();}}