C#UDP的多路广播组的发送和接收

最新推荐文章于 2024-12-02 20:39:48 发布

hyip100

最新推荐文章于 2024-12-02 20:39:48 发布

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文章标签： exception string system byte class

本文提供了一个使用C#实现的UDP组播示例，包括发送端和接收端的代码。发送端负责向指定的组播地址发送消息，而接收端则监听该地址并打印接收到的数据。

using System; using System.Net; using System.Net.Sockets; using System.Text; public class UDPMulticastListener { private static readonly IPAddress GroupAddress = IPAddress.Parse("224.168.100.2"); private const int GroupPort = 11000; private static void StartListener() { bool done = false; UdpClient listener = new UdpClient(); IPEndPoint groupEP = new IPEndPoint(GroupAddress,GroupPort); try { listener.JoinMulticastGroup(GroupAddress); listener.Connect(groupEP); while (!done) { Console.WriteLine("Waiting for broadcast"); byte[] bytes = listener.Receive( ref groupEP); Console.WriteLine("Received broadcast from {0} :/n {1}/n", groupEP.ToString(), Encoding.ASCII.GetString(bytes,0,bytes.Length)); } listener.Close(); } catch (Exception e) { Console.WriteLine(e.ToString()); } } public static int Main(String[] args) { StartListener(); return 0; } }

using System; using System.Net; using System.Net.Sockets; using System.Text; public class UDPMulticastSender { private static IPAddress GroupAddress = IPAddress.Parse("224.168.100.2"); private static int GroupPort = 11000; private static void Send( String message) { UdpClient sender = new UdpClient(); IPEndPoint groupEP = new IPEndPoint(GroupAddress,GroupPort); try { Console.WriteLine("Sending datagram : {0}", message); byte[] bytes = Encoding.ASCII.GetBytes(message); sender.Send(bytes, bytes.Length, groupEP); sender.Close(); } catch (Exception e) { Console.WriteLine(e.ToString()); } } public static int Main(String[] args) { Send(args[0]); return 0; } } ********************************************************************************