springboot搭建mqtt服务
时间: 2023-08-22 08:11:58 浏览: 187
Springboot可以用来搭建MQTT服务。在Springboot的启动类中,可以直接在main方法里面启动netty的MQTT服务。\[1\]启动MQTT的线程类负责具体的启动逻辑,包括指定端口号和启动MQTT服务。\[2\]通过获取MqttPublishMessage的payload数据,可以获取到消息的内容。\[3\]这样就可以实现Springboot搭建MQTT服务的功能。
#### 引用[.reference_title]
- *1* *2* *3* [Springboot+Netty搭建MQTT协议的服务端(基础Demo)](https://blog.csdn.net/myyhtw/article/details/114041042)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^koosearch_v1,239^v3^insert_chatgpt"}} ] [.reference_item]
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相关问题
springboot整合mqtt连接emqx
要实现Spring Boot与EMQ X的整合,需要进行以下几个步骤:
1. 首先,在你的Spring Boot项目中,创建一个主启动类(例如MqttAcceptApplication)。这个类需要添加@SpringBootApplication注解,并且实现public static void main(String[] args)方法,其中调用SpringApplication.run方法来启动应用程序。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [【MQTT】SpringBoot整合MQTT(EMQX)](https://blog.csdn.net/hongshanguo/article/details/123182831)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
- *2* [SpringBoot整合mqtt(搭建EMQ X消息服务器)](https://blog.csdn.net/User_jing/article/details/111678676)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
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基于springboot搭建的物联网平台实现mqtt协议接入,不用列出代码
好的,下面是基于Spring Boot搭建物联网平台实现MQTT协议接入的流程介绍:
1. 引入Eclipse Paho MQTT客户端库
在pom.xml文件中添加以下依赖:
```xml
<dependency>
<groupId>org.eclipse.paho</groupId>
<artifactId>org.eclipse.paho.client.mqttv3</artifactId>
<version>1.2.5</version>
</dependency>
```
2. 配置MQTT连接参数
在application.properties文件中添加以下配置:
```properties
# MQTT连接参数
mqtt.host=tcp://localhost:1883
mqtt.username=admin
mqtt.password=admin
mqtt.clientId=clientId
```
3. 实现MQTT客户端连接管理
创建MQTT客户端连接管理类,负责连接、断开连接、订阅、取消订阅等操作。
```java
@Service
public class MqttClientManager {
private static final String CLIENT_ID = "clientId";
private static final int QOS = 1;
private static final String[] TOPICS = {"topic1", "topic2"};
private MqttClient mqttClient;
@Value("${mqtt.host}")
private String mqttHost;
@Value("${mqtt.username}")
private String mqttUsername;
@Value("${mqtt.password}")
private String mqttPassword;
/**
* 连接MQTT服务器
*
* @throws MqttException
*/
public void connect() throws MqttException {
mqttClient = new MqttClient(mqttHost, CLIENT_ID, new MemoryPersistence());
mqttClient.connect(getMqttConnectOptions());
subscribe();
}
/**
* 断开MQTT服务器连接
*
* @throws MqttException
*/
public void disconnect() throws MqttException {
mqttClient.disconnect();
}
/**
* 订阅主题
*
* @throws MqttException
*/
private void subscribe() throws MqttException {
mqttClient.subscribe(TOPICS, new MqttMessageListener());
}
/**
* 取消订阅主题
*
* @throws MqttException
*/
public void unsubscribe() throws MqttException {
mqttClient.unsubscribe(TOPICS);
}
/**
* 发布消息
*
* @param topic
* @param message
* @throws MqttException
*/
public void publish(String topic, String message) throws MqttException {
MqttMessage mqttMessage = new MqttMessage(message.getBytes());
mqttMessage.setQos(QOS);
mqttClient.publish(topic, mqttMessage);
}
/**
* 获取MQTT连接参数
*
* @return
*/
private MqttConnectOptions getMqttConnectOptions() {
MqttConnectOptions options = new MqttConnectOptions();
options.setCleanSession(true);
options.setUserName(mqttUsername);
options.setPassword(mqttPassword.toCharArray());
return options;
}
}
```
4. 实现MQTT消息监听器
创建MQTT消息监听器类,负责处理接收到的MQTT消息。
```java
public class MqttMessageListener implements IMqttMessageListener {
@Override
public void messageArrived(String topic, MqttMessage message) throws Exception {
System.out.println("Received message: " + new String(message.getPayload()));
}
}
```
5. 启动MQTT客户端连接
在Spring Boot启动类中启动MQTT客户端连接。
```java
@SpringBootApplication
public class Application implements CommandLineRunner {
@Autowired
private MqttClientManager mqttClientManager;
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@Override
public void run(String... args) throws Exception {
mqttClientManager.connect();
}
}
```
以上就是基于Spring Boot搭建物联网平台实现MQTT协议接入的流程介绍。
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