Paho.MQTT.Client 使用方法
时间: 2024-05-12 13:20:26 浏览: 105
org.eclipse.paho.client.mqttv3-1.2.5-jar
Paho.MQTT.Client 是一个 MQTT 客户端库,用于在不同的平台上实现 MQTT 协议。以下是使用 Paho.MQTT.Client 的基本步骤:
1. 导入库:
```csharp
using MQTT;
```
2. 创建 MQTT 客户端:
```csharp
MqttClient client = new MqttClient("broker.mqtt.com");
```
3. 设置连接参数:
```csharp
client.ConnectOptions = new MqttConnectOptions
{
UserName = "username",
Password = "password",
CleanSession = true
};
```
4. 创建连接:
```csharp
client.Connect();
```
5. 发布消息:
```csharp
client.Publish(new MqttMessage("hello, world"), "topic");
```
6. 订阅主题:
```csharp
client.Subscribe("topic", MqttQoS.AtLeastOnce);
```
7. 处理消息:
```csharp
client.MqttMsgPublishReceived += (sender, e) =>
{
string message = Encoding.UTF8.GetString(e.Message);
Console.WriteLine("Received message: " + message);
};
```
8. 断开连接:
```csharp
client.Disconnect();
```
以上是 Paho.MQTT.Client 的基本使用方法,可以根据需要进行调整和扩展。
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