Maybe the message is a little bit misleading. This can happen when the client is going to be disconnected. This will return "IsConnected" true but throws the exception. Pending disconnects are not part of the "IsConnected" property. I will consider to add this value here as well. Also ...
最主要的原因之一为：安装的杀毒软件将Solid Works服务设为禁止启动，每次开机后都需要进行手动的启动，...
MQTTnet 文档地址：https://github.com/chkr1011/MQTTnet/wiki/Client emqx 文档地址：http://www....
Console.WriteLine("The MQTT client is connected.");//response.DumpToConsole();// Send a clean disconnect to the server by calling _DisconnectAsync_. Without this the TCP connection// gets dropped and the server will handle this as a non clean disconnect (see MQTT spec for details).varmqt...
_mqttClient=mqttFactory.CreateMqttClient(); }//启动时连接publicasyncTask ConnectAsync() {await_mqttLock.WaitAsync();try{if(!_mqttClient.IsConnected) {varoptions =newMqttClientOptionsBuilder() .WithTcpServer(_brokerAddress, _brokerPort)
if (connectResult.ResultCode == MqttClientConnectResultCode.Success) { Console.WriteLine("Connected to MQTT broker successfully."); // Subscribe to a topic await mqttClient.SubscribeAsync(topic); // Callback function when a message is received mqttClient.ApplicationMessageReceivedAsync += e => {...
("cert\\mqtt.pem")) }); o.Build(); }).Build(); try { var response = await mqttClient.ConnectAsync(mqttClientOptions, CancellationToken.None); Console.WriteLine("The MQTT client is connected."); } catch (Exception ex) { Console.WriteLine(ex); } // Send a clean disconnect to the ...
var connectResult = await mqttClient.ConnectAsync(options); Here we use asynchronous programming, which allows message publishing while subscribing to prevent blocking. 6. Subscribe to topics Once connected to the broker, you can verify the success of the connection by checking the value of Result...
MQTTnet is a high performance .NET library forMQTTbased communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation fromhttp://mqtt.org/. Features General Async support TLS 1.2 support for client and server (but not UWP servers) ...
MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation fromhttp://mqtt.org/. Features General Async support TLS 1.2 support for client and server (but not UWP servers) ...