本篇内容主要讲解“java怎么实现组播”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“java怎么实现组播”吧!
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MulticastSocket multicastSocket;@FXMLButton btnmuticast,btnmuticaststop;public void btnmuticastOnMouseClicked(MouseEvent event)
{try {multicastSocket = new MulticastSocket(3001); multicastSocket.setInterface(InetAddress.getByName("192.168.1.101")); InetAddress multiaddr = InetAddress.getByName("224.26.83.1"); multicastSocket.joinGroup(multiaddr); multicastSocket.setTimeToLive(4); byte[] buff = "QQ".getBytes(); DatagramPacket datagramPacket = new DatagramPacket(buff,buff.length,multiaddr,3001); multicastSocket.send(datagramPacket); logger.info("btnmuticastOnMouseClicked"); } catch (IOException e) {
e.printStackTrace(); }
}public void bbtnmuticaststopOnMouseClicked(MouseEvent event)
{if((multicastSocket!= null) && (multicastSocket.isConnected()))
{logger.info("bbtnmuticaststopOnMouseClicked"); multicastSocket.close(); }
}接收端：
public class MulticastReceive {
public static void main(String[] args) throws Exception {
listener();
}
public static void listener() throws Exception{
//组播地址
InetAddress group = InetAddress.getByName("224.0.0.1");
int port = 8888;
//创建组播套接字
MulticastSocket msr = null;
try {
msr = new MulticastSocket(port);
//加入连接
msr.joinGroup(group);
byte[] buffer = new byte[8192];
System.out.println("接收数据包启动！(启动时间: "+new Date()+")");
while(true){
//建立一个指定缓冲区大小的数据包
DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
msr.receive(dp);
String s = new String(dp.getData(),0,dp.getLength());
//解码组播数据包
System.out.println(s);
}
} catch (Exception e) {
e.printStackTrace();
}finally{
if(msr!=null){
try {
msr.leaveGroup(group);
msr.close();
} catch (Exception e2) {
}
}
}
}
}发送端：
public class MulticastSender {
public static void server() throws Exception{
InetAddress group = InetAddress.getByName("224.0.0.1");//组播地址
int port = 8888;
MulticastSocket mss = null;
try {
mss = new MulticastSocket(port);
mss.joinGroup(group);
System.out.println("发送数据包启动！（启动时间"+new Date()+")");
while(true){
String message = "Hello "+new Date();
byte[] buffer = message.getBytes();
DatagramPacket dp = new DatagramPacket(buffer, buffer.length,group,port);
mss.send(dp);
System.out.println("发送数据包给 "+group+":"+port);
TimeUnit.SECONDS.sleep(1);
}
} catch (Exception e) {
e.printStackTrace();
}finally{
try {
if(mss!=null){
mss.leaveGroup(group);
mss.close();
}
} catch (Exception e2) {
}
}
}
public static void main(String[] args) throws Exception {
server();
}
}到此，相信大家对“java怎么实现组播”有了更深的了解，不妨来实际操作一番吧！这里是亿速云网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！
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原文链接：https://my.oschina.net/u/2963604/blog/4550901
