MqttNet基本示例

所以以上面的解決方案為例

我用相同的參考創建了自己的專案

對于每個專案，我還添加了正確的 using 陳述句，如示例中所示。

所以一切都應該是正確的，但是當我粘貼服務器的代碼時，我得到了這些錯誤

MqttServerOptionsBuilder options = new MqttServerOptionsBuilder()
           .WithDefaultEndpoint()
           .WithDefaultEndpointPort(707)
           .WithConnectionValidator(OnNewConnection)
           .WithApplicationMessageInterceptor(OnNewMessage);


        IMqttServer mqttServer = new MqttFactory().CreateMqttServer();

并且對于客戶，我也遇到其他錯誤

問題出在哪里？謝謝

- -添加 - -

按照這里的要求是錯誤

(1) Error   CS1061  'IManagedMqttClient' does not contain a definition for 'ConnectedHandler' and no accessible extension method 'ConnectedHandler' accepting a first argument of type 'IManagedMqttClient' could be found (are you missing a using directive or an assembly reference?)    Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  43  25  IntelliSense    Active

(2) Error   CS0246  The type or namespace name 'MqttClientConnectedHandlerDelegate' could not be found (are you missing a using directive or an assembly reference?)    Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  43  48  IntelliSense    Active

(3) Error   CS0103  The name 'OnConnected' does not exist in the current context    Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  43  83  IntelliSense    Active

(4) Error   CS1061  'IManagedMqttClient' does not contain a definition for 'DisconnectedHandler' and no accessible extension method 'DisconnectedHandler' accepting a first argument of type 'IManagedMqttClient' could be found (are you missing a using directive or an assembly reference?)  Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  44  25  IntelliSense    Active

(5) Error   CS0246  The type or namespace name 'MqttClientDisconnectedHandlerDelegate' could not be found (are you missing a using directive or an assembly reference?) Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  44  51  IntelliSense    Active

(6) Error   CS0103  The name 'OnDisconnected' does not exist in the current context Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  44  89  IntelliSense    Active

(7) Error   CS1061  'IManagedMqttClient' does not contain a definition for 'ConnectingFailedHandler' and no accessible extension method 'ConnectingFailedHandler' accepting a first argument of type 'IManagedMqttClient' could be found (are you missing a using directive or an assembly reference?)  Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  45  25  IntelliSense    Active

(8) Error   CS0246  The type or namespace name 'ConnectingFailedHandlerDelegate' could not be found (are you missing a using directive or an assembly reference?)   Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  45  55  IntelliSense    Active

(9) Error   CS0103  The name 'OnConnectingFailed' does not exist in the current context Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  45  87  IntelliSense    Active

(10) Error  CS1061  'IManagedMqttClient' does not contain a definition for 'ApplicationMessageReceivedHandler' and no accessible extension method 'ApplicationMessageReceivedHandler' accepting a first argument of type 'IManagedMqttClient' could be found (are you missing a using directive or an assembly reference?)  Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  47  25  IntelliSense    Active

(11) Error  CS0246  The type or namespace name 'MqttApplicationMessageReceivedHandlerDelegate' could not be found (are you missing a using directive or an assembly reference?) Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  47  65  IntelliSense    Active

(12) Error  CS1061  'IManagedMqttClient' does not contain a definition for 'PublishAsync' and no accessible extension method 'PublishAsync' accepting a first argument of type 'IManagedMqttClient' could be found (are you missing a using directive or an assembly reference?)    Client  C:\Development\MqttDemo\MqttDemo\Client\MainWindow.xaml.cs  56  29  IntelliSense    Active

uj5u.com熱心網友回復：

MQTT 正迅速成為 IOT（物聯網）部署的主要協議之一。

MQTT 有兩種不同的變體和多個版本。
MQTT v3.1.0 –
MQTT v3.1.1 – 常用
MQTT v5 – 目前受限使用
MQTT-SN – 見后面的注釋

您遵循的示例使用版本3.0.16。MQTT v3.1.1 是常用版本，v3.10 和 3.1.1 差別很小。所以降低你的 MQTT 來解決這個問題。

Install-Package MQTTnet -Version 3.0.16

客戶：

Install-Package MQTTnet.Extensions.ManagedClient -Version 3.0.16

參考：鏈接1 ，鏈接2 ，鏈接3，鏈接4

標籤：C＃ wpf MQTT

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