IPv6组播示例

我已经搜索了如何实现一个简单的ipv6组播示例的例子，但是我只找到了使用ipv4的例子。

任何人都可以提供一个简单的“helloworld”ipv6组播示例吗？

Answer 1

这是一个简单的客户端服务器示例。 顺便说一下，在网络上的多台机器上运行它会使所有机器相互聊天，这有利于测试网络上的自动发现。

import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress; import java.net.MulticastSocket; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class UdpBroadcaster { private static final Logger LOGGER = LoggerFactory.getLogger(UdpBroadcaster.class); private static final int PORT = 9876; private static final String MCAST_ADDR = "FF7E:230::1234"; private static InetAddress GROUP; public static void main(String[] args) { try { GROUP = InetAddress.getByName(MCAST_ADDR); Thread server = server(); server.start(); Thread.sleep(3000); Thread client = client(); client.start(); client.join(); } catch (Exception e) { LOGGER.error("Usage : [group-ip] [port]"); } } private static Thread client() { return new Thread(new Runnable() { public void run() { MulticastSocket multicastSocket = null; try { multicastSocket = new MulticastSocket(PORT); multicastSocket.joinGroup(GROUP); while (true) { try { byte[] receiveData = new byte[256]; DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length); multicastSocket.receive(receivePacket); LOGGER.info("Client received from : " + receivePacket.getAddress() + ", " + new String(receivePacket.getData())); } catch (Exception e) { LOGGER.error(null, e); } } } catch (Exception e) { LOGGER.error(null, e); } finally { multicastSocket.close(); } } }); } private static Thread server() { return new Thread(new Runnable() { public void run() { DatagramSocket serverSocket = null; try { serverSocket = new DatagramSocket(); try { while (true) { byte[] sendData = new byte[256]; DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, GROUP, PORT); serverSocket.send(sendPacket); ThreadUtilities.sleep(1000); } } catch (Exception e) { LOGGER.error(null, e); } } catch (Exception e) { LOGGER.error(null, e); } } }); } } 

希望有所帮助。 中号

Answer 2

IPv6程序和Java中的IPv4程序之间的唯一区别是IP地址。 在这种情况下，您必须在加入组时以及向组发送时使用IPv6样式的多播地址。 其他一切都是一样的。