public void Start() { try { UdpServer = new UdpClient(30000); } catch (Exception ex) { throw new Exception("UdpServer初始化失败,原因:" + ex.Message); } SendLoginBeatSend(); IPEndPoint tbip = null; if (IsLoad) { try { UdpServer.Client.ReceiveTimeout = 5 * 1000; byte[] dataLogin = UdpServer.Receive(ref tbip); LoginBeatRec BeatRec = ProcessJsonLogin(dataLogin.ToASCIIString()); if (BeatRec != null && BeatRec.las != null && BeatRec.las.login_success) { } else { throw new Exception("服务器拒绝登陆,登陆失败"); } } catch { throw new Exception("服务器无响应登陆失败,Time=" + UdpServer.Client.ReceiveTimeout + "MS"); } } UdpServer.Client.ReceiveTimeout = 5 * 60 * 1000; IsRuning = true; Task.Run(() => { while (IsRuning) { try { IPEndPoint ip = null; byte[] data = UdpServer.Receive(ref ip); if (!IsLoad) { Ep = ip.ToDnsEndPoint(); } if (data.Length > 0) { if (data[2] == 'a' && data[3] == 's') { LoginBeatRec nas = ProcessJsonLogin(data.ToASCIIString()); if (nas?.las != null && nas.las.login_success) { BeatRcvTime = DateTime.Now; } } else { ProcessLoraPackage(data); } } } catch (Exception ex) { log.Error(ex); } } }); }