springboot集成mqtt
时间: 2023-11-09 21:02:04 浏览: 86
springboot集成MQTT客户端_IoT.zip
要在Spring Boot中集成MQTT,可以使用 Eclipse Paho 客户端库。以下是集成步骤:
1. 添加 Maven 依赖:
```
<dependency>
<groupId>org.eclipse.paho</groupId>
<artifactId>org.eclipse.paho.client.mqttv3</artifactId>
<version>1.2.5</version>
</dependency>
```
2. 创建一个 MqttClient 对象:
```
MqttClient client = new MqttClient(broker, clientId, persistence);
```
3. 创建一个 MqttConnectOptions 对象,并设置连接参数:
```
MqttConnectOptions connOpts = new MqttConnectOptions();
connOpts.setCleanSession(true);
connOpts.setUserName(username);
connOpts.setPassword(password.toCharArray());
```
4. 连接到 MQTT 代理服务器:
```
client.connect(connOpts);
```
5. 订阅主题:
```
client.subscribe(topic);
```
6. 发布消息:
```
MqttMessage message = new MqttMessage(payload.getBytes());
message.setQos(qos);
client.publish(topic, message);
```
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