sprigboot连接MQTT服务器

最新推荐文章于 2025-06-10 13:46:05 发布

原创最新推荐文章于 2025-06-10 13:46:05 发布 · 993 阅读

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博客介绍了Spring Boot集成MQTT的相关内容，包括添加pom、配置文件、配置类、发送信息的接口等步骤，还提到在启动类上需加上注解@EnableConfigurationProperties(MqttProperties.class)。

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添加pom

<!--************ mqtt *****************-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-integration</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.integration</groupId>
			<artifactId>spring-integration-stream</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.integration</groupId>
			<artifactId>spring-integration-mqtt</artifactId>
		</dependency>

配置文件

com:
  mqtt:
    inbound:
      url: tcp://192.168.0.1:1883
      clientId: test-inbound
      topics: topic1,topic2
      username: root
      password: 123456
    outbound:
      urls: tcp://192.168.0.61:1883
      clientId: test-outbound
      topic: topic1
      username: root
      password: 123456
     #密码加盐
    salt: 123456

配置类

@Data
@ConfigurationProperties(prefix = "com.mqtt")
public class MqttProperties {
    private String salt;
    private MqttInboundProperties inbound;
    private MqttOutboundProperties outbound;
}

@Data
public class MqttInboundProperties {
    private String url;
    private String username;
    private String password;
    private String clientId;
    private String topics;
}

@Data
public class MqttOutboundProperties {
    private String urls;
    private String username;
    private String password;
    private String clientId;
    private String topic;
}

@Configuration
public class MqttOutboundConfiguration {
    @Autowired
    private MqttProperties mqttProperties;

    @Bean
    public MqttConnectOptions getMqttConnectOptions(){
        MqttConnectOptions mqttConnectOptions=new MqttConnectOptions();
        mqttConnectOptions.setServerURIs( mqttProperties.getOutbound().getUrls().split(","));
        mqttConnectOptions.setKeepAliveInterval(100);
        mqttConnectOptions.setMaxInflight(1000);
        mqttConnectOptions.setUserName(mqttProperties.getOutbound().getUsername());
        mqttConnectOptions.setPassword(mqttProperties.getOutbound().getPassword().toCharArray());
        mqttConnectOptions.setAutomaticReconnect(true);
        return mqttConnectOptions;
    }

    @Bean
    public MqttPahoClientFactory mqttClientFactory() {
        DefaultMqttPahoClientFactory factory = new DefaultMqttPahoClientFactory();
        factory.setConnectionOptions(getMqttConnectOptions());
        return factory;
    }

    @Bean
    @ServiceActivator(inputChannel = "mqttOutboundChannel")
    public MessageHandler mqttOutbound() {
        MqttPahoMessageHandler messageHandler =
                new MqttPahoMessageHandler(mqttProperties.getOutbound().getClientId(), mqttClientFactory());
        messageHandler.setAsync(true);
        messageHandler.setDefaultTopic(mqttProperties.getOutbound().getTopic());
        return messageHandler;
    }

    @Bean
    public MessageChannel mqttOutboundChannel() {
        return new DirectChannel();
    }
}

@Configuration
@Slf4j
public class MqttInboundConfiguration {
    @Autowired
    private MqttProperties mqttProperties;
    @Bean
    public MessageChannel mqttInputChannel() {
        return new DirectChannel();
    }
    @Bean
    public MqttConnectOptions getMqttConnectOptions(){
        MqttConnectOptions mqttConnectOptions=new MqttConnectOptions();
        mqttConnectOptions.setServerURIs( mqttProperties.getInbound().getUrl().split(","));
        mqttConnectOptions.setKeepAliveInterval(100);
        mqttConnectOptions.setMaxInflight(1000);
        mqttConnectOptions.setUserName(mqttProperties.getInbound().getUsername());
        mqttConnectOptions.setPassword(mqttProperties.getInbound().getPassword().toCharArray());
        mqttConnectOptions.setAutomaticReconnect(true);
        return mqttConnectOptions;
    }

    @Bean
    public MqttPahoClientFactory mqttClientFactory() {
        DefaultMqttPahoClientFactory factory = new DefaultMqttPahoClientFactory();
        factory.setConnectionOptions(getMqttConnectOptions());
        return factory;
    }
    @Bean
    public MessageProducer inbound(MqttPahoClientFactory mqttPahoClientFactory) {
        String[] inboundTopics = mqttProperties.getInbound().getTopics().split(",");
        MqttPahoMessageDrivenChannelAdapter adapter =
                new MqttPahoMessageDrivenChannelAdapter(mqttProperties.getInbound().getClientId(),
                        mqttPahoClientFactory,inboundTopics);
        adapter.setCompletionTimeout(5000);
        adapter.setConverter(new DefaultPahoMessageConverter());
        adapter.setQos(1);
        adapter.setOutputChannel(mqttInputChannel());
        return adapter;
    }

    @Bean
    @ServiceActivator(inputChannel = "mqttInputChannel")
    public MessageHandler handler() {
        return message -> log.info("收到消息："+ message.getPayload());
    }
}

发送信息的接口

@Component
@MessagingGateway(defaultRequestChannel = "mqttOutboundChannel")
public interface MqttGateway {
    /**
     * 发送信息
     * @param data
     */
    void sendToMqtt(String data);

    /**
     * 指定主题发送信息
     * @param topic
     * @param payload
     */
    void sendToMqtt(@Header(MqttHeaders.TOPIC) String topic, String payload);

    /**
     * 指定主题和qos发送信息
     * @param topic
     * @param qos
     * @param payload
     */
    void sendToMqtt(@Header(MqttHeaders.TOPIC) String topic, @Header(MqttHeaders.QOS) int qos, String payload);
}