springboot整合mqtt实现消息订阅和推送功能

        <!-- https://mvnrepository.com/artifact/net.dreamlu/mica-mqtt-client-spring-boot-starter -->
        <dependency>
            <groupId>net.dreamlu</groupId>
            <artifactId>mica-mqtt-client-spring-boot-starter</artifactId>
            <version>2.2.8</version>
        </dependency>

mqtt:
  server:    
    enabled: false              # 是否开启服务端，默认：false
  client:
    enabled: true               # 是否开启客户端，默认：false
    ip: 172.16.10.203   # 连接的服务端 ip ，默认：127.0.0.1
    port: 1883                  # 端口：默认：1883
    name: Mica2-Mqtt2-Client      # 名称，默认：Mica-Mqtt-Client
    clientId: coalface_safety_3d            # 客户端Id（非常重要，一般为设备 sn，不可重复）
    user-name: admin           # 认证的用户名 你的用户名
    password: 3@!cHy@j       # 认证的密码
    timeout: 5                  # 连接超时时间，单位：秒，默认：5秒
    reconnect: true             # 是否重连，默认：true
    re-interval: 5000           # 重连时间，默认 5000 毫秒
    version: MQTT_3_1           # mqtt 协议版本，默认：3.1.1
    read-buffer-size: 8092      # 接收数据的 buffer size，默认：8092
    max-bytes-in-message: 8092  # 消息解析最大 bytes 长度，默认：8092
    buffer-allocator: heap      # 堆内存和堆外内存，默认：堆内存
    keep-alive-secs: 60         # keep-alive 心跳维持时间，单位：秒
    clean-session: false         # mqtt clean session，默认：true
    will-message:                # 消息遗嘱
      qos: at_least_once
    ssl:
    enabled: false            # 是否开启 ssl 认证，2.1.0 开始支持双向认证
    keystore-path:            # 可选参数：ssl 双向认证 keystore 目录，支持 classpath:/ 路径。
    keystore-pass:            # 可选参数：ssl 双向认证 keystore 密码
    truststore-path:          # 可选参数：ssl 双向认证 truststore 目录，支持 classpath:/ 路径。
    truststore-pass:          # 可选参数：ssl 双向认证 truststore 密码

import com.alibaba.fastjson.JSONObject;
import net.dreamlu.iot.mqtt.spring.client.MqttClientSubscribe;
import org.springframework.messaging.handler.annotation.Header;
import org.springframework.messaging.handler.annotation.Payload;
import org.springframework.stereotype.Component;
import org.tio.utils.buffer.ByteBufferUtil;
/**
 * @author tarzan
 */
@Component
@Slf4j
public class SimulationSubscriber {
    @MqttClientSubscribe("tuoyuan/publish/zj/#")
    public void zjOne(String topic, byte[] payload){
        String[] strs=topic.split("/");
        String ID=strs[strs.length-1];
        log.info("topic:{} payload:{} ID:{}", topic, new String(payload, StandardCharsets.UTF_8),ID);
    }
	 @MqttClientSubscribe("/sys/${deviceName}/thing/sub/register")
	  public void thingSubRegister(String topic, byte[] payload) {
	    // 1.3.8 开始支持，@MqttClientSubscribe 注解支持 ${} 变量替换，会默认替换成 +
	    // 注意：mica-mqtt 会先从 Spring boot 配置中替换参数 ${}，如果存在配置会优先被替换。
	    logger.info("topic:{} payload:{}", topic, new String(payload, StandardCharsets.UTF_8));
	  }
    @MqttClientSubscribe("/tianma/publish/cmj")
    public void cmj(@Header("topic") String topic,@Payload byte[] payload) {
        System.out.println("*****************gc**************************************"+topic);
        JSONObject jsonObject = JSONObject.parseObject(ByteBufferUtil.toString(payload));
        //业务的处理
        System.out.println("*****************test**************************************"+jsonObject);
    }
    @MqttClientSubscribe("/tianma/publish/zj")
    public void zj(@Header("topic") String topic,@Payload byte[] payload) {
        System.out.println("*****************gc**************************************"+topic);
        JSONObject jsonObject = JSONObject.parseObject(ByteBufferUtil.toString(payload));
        //业务的处理
        System.out.println("*****************test**************************************"+jsonObject);
    }
    @MqttClientSubscribe("/tianma/publish/gbj")
    public void gbj(@Header("topic") String topic,@Payload byte[] payload) {
        System.out.println("*****************gc**************************************"+topic);
        JSONObject jsonObject = JSONObject.parseObject(ByteBufferUtil.toString(payload));
        //业务的处理
        System.out.println("*****************test**************************************"+jsonObject);
    }
    @MqttClientSubscribe("/tianma/publish/ltl")
    public void ltl(@Header("topic") String topic,@Payload byte[] payload) {
        System.out.println("*****************gc**************************************"+topic);
        JSONObject jsonObject = JSONObject.parseObject(ByteBufferUtil.toString(payload));
        //业务的处理
        System.out.println("*****************test**************************************"+jsonObject);
    }
    @MqttClientSubscribe("/tianma/publish/ntl")
    public void ntl(@Header("topic") String topic,@Payload byte[] payload) {
        System.out.println("*****************gc**************************************"+topic);
        JSONObject jsonObject = JSONObject.parseObject(ByteBufferUtil.toString(payload));
        //业务的处理
        System.out.println("*****************test**************************************"+jsonObject);
    }
    @MqttClientSubscribe("/tianma/publish/ccl")
    public void ccl(@Header("topic") String topic,@Payload byte[] payload) {
        System.out.println("*****************gc**************************************"+topic);
        JSONObject jsonObject = JSONObject.parseObject(ByteBufferUtil.toString(payload));
        //业务的处理
        System.out.println("*****************test**************************************"+jsonObject);
    }
}

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import net.dreamlu.iot.mqtt.spring.client.MqttClientTemplate;
import org.springblade.core.secure.annotation.NoToken;
import org.springblade.core.tool.api.R;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.nio.charset.StandardCharsets;
/**
 * @author tarzan
 */
@RestController
@Api(tags = "mqtt测试")
@NoToken
@RequestMapping("/mqtt")
@AllArgsConstructor
@Slf4j
public class MqttTestController {
    private final MqttClientTemplate mqttClientTemplate;
    @ApiOperation(value = "消息发送")
    @PostMapping("/publish")
    private R<Boolean> publish(String topic, String msg) {
        return R.status(mqttClientTemplate.publish(topic, msg.getBytes(StandardCharsets.UTF_8)));
    }
}