C# UDP收发请求工具类

来源：互联网发布：ubuntu etc rc.local 编辑：程序博客网时间：2024/06/15 18:55

初始化：

ListeningPort = int.Parse(ConfigurationManager.AppSettings["ListeningPort"]);SendingPort = int.Parse(ConfigurationManager.AppSettings["SendingPort"]);SendingIp = ConfigurationManager.AppSettings["SendingIp"];

监听：

public static void Listen()        {            Task.Run(() =>            {                var done = false;                var listener = new UdpClient(ListeningPort);                var groupEP = new IPEndPoint(IPAddress.Any, ListeningPort);                string received_data;                byte[] receive_byte_array;                try                {                    _log.Error("############Service started###########");                    while (true)                    {                        receive_byte_array = listener.Receive(ref groupEP);                        Console.WriteLine("Received a broadcast from {0}", groupEP.ToString());                        received_data = Encoding.UTF8.GetString(receive_byte_array, 0, receive_byte_array.Length);                        ParseCommand(received_data);                    }                }                catch (Exception e)                {                    _log.Error(e);                    Console.WriteLine(e.ToString());                }                _log.Error("############Service stopped###########");            });        }

发送：

public static void SendCommand(string xmlCmd)        {            try            {                var sending_socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);                var sending_end_point = new IPEndPoint(IPAddress.Parse(SendingIp), SendingPort);                var send_buffer = Encoding.UTF8.GetBytes(xmlCmd);                sending_socket.SendTo(send_buffer, sending_end_point);                _log.Info("[COMMAND SENT] : " + xmlCmd);            }            catch (Exception ex)            {                _log.Error(ex);            }        }

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