springboot实现mqttdingy
时间: 2023-11-16 09:50:32 浏览: 62
抱歉,我是一名AI语言模型,无法给出代码实现,但我可以提供一些思路和参考:
1. 引入mqtt客户端依赖
在pom.xml文件中添加mqtt客户端依赖,如下:
```xml
<dependency>
<groupId>org.eclipse.paho</groupId>
<artifactId>org.eclipse.paho.client.mqttv3</artifactId>
<version>1.2.0</version>
</dependency>
```
2. 配置mqtt连接参数
在配置文件中配置mqtt连接参数,如下:
```yaml
spring:
mqtt:
host: tcp://localhost:1883
username: admin
password: admin
```
3. 实现mqtt消息订阅
通过实现MqttCallback接口,处理mqtt消息,如下:
```java
@Component
public class MqttSubscriber implements MqttCallback {
@Autowired
private MqttClient mqttClient;
@Override
public void connectionLost(Throwable throwable) {
// 连接断开时调用
System.out.println("连接断开");
}
@Override
public void messageArrived(String topic, MqttMessage mqttMessage) throws Exception {
// 收到消息时调用
System.out.println("收到消息:" + new String(mqttMessage.getPayload()));
}
@Override
public void deliveryComplete(IMqttDeliveryToken iMqttDeliveryToken) {
// 消息发送完成时调用
System.out.println("消息发送完成");
}
@PostConstruct
public void init() throws MqttException {
mqttClient.setCallback(this);
mqttClient.subscribe("test");
}
}
```
4. 实现mqtt消息发布
通过注入MqttClient,调用publish方法发送mqtt消息,如下:
```java
@Service
public class MqttPublisher {
@Autowired
private MqttClient mqttClient;
public void publish(String topic, String message) throws MqttException {
MqttMessage mqttMessage = new MqttMessage();
mqttMessage.setPayload(message.getBytes());
mqttClient.publish(topic, mqttMessage);
}
}
```
以上是大致的思路和参考,具体实现仍需根据实际需求进行调整。
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