mq发布问题

aijinhui

2023-11-14 d276650af474a920778ab083fb5dfed12a0c8c0f

 ard-work/src/main/java/com/ruoyi/utils/mqtt/MqttOnce.java

@@ -1,13 +1,18 @@
package com.ruoyi.utils.mqtt;

import com.ruoyi.common.utils.spring.SpringUtils;
import com.ruoyi.sy.domain.ArdSyCarRtu;
import com.ruoyi.sy.mapper.ArdSyCarRtuMapper;
import com.ruoyi.sy.service.ArdSyCarRtuService;
import com.ruoyi.system.service.ISysConfigService;
import lombok.extern.slf4j.Slf4j;
import org.eclipse.paho.client.mqttv3.*;
import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
@@ -17,18 +22,76 @@
 */
@Slf4j
@Component
public class MqttOnce implements CommandLineRunner {
public class MqttOnce{

    @Autowired
    private ArdSyCarRtuService ardSyCarRtuService;

    @Override
    public void run(String... args) throws Exception {
        String[] topic = ardSyCarRtuService.allCarTopic();
        MqttConsumer mqttConsumer = new MqttConsumer();
        for (int i = 0; i < topic.length; i++) {
            mqttConsumer.subscribe(topic[i],2);
    @PostConstruct
    public void init() {
        List<ArdSyCarRtu> rtus = ardSyCarRtuService.allCarTopicList();
        for (int i = 0; i < rtus.size(); i++) {
            ArdSyCarRtu rtu = rtus.get(i);
            String carId = rtu.getCarId();
            String subscribe = rtu.getTopicSubscribe();
            try {
                MqttClient client = getMqttClient(carId);
                MqttConnectOptions options = getMqttConnectOptions();
                client.setCallback(new MqttOnceCallback(client,options,subscribe,2));
//                log.debug("--添加车辆电磁锁回调处理类");
                client.connect(options);
            }catch (Exception e) {
                e.printStackTrace();
            }
        }
        log.info("mqtt订阅清淤车辆锁信息："+Arrays.toString(topic));
    }

    public void subscribeCar(ArdSyCarRtu ardSyCarRtu){
        String carId = ardSyCarRtu.getCarId();
        String subscribe = ardSyCarRtu.getTopicSubscribe();
        try {
            MqttClient client = getMqttClient(carId);
            MqttConnectOptions options = getMqttConnectOptions();
            client.setCallback(new MqttOnceCallback(client,options,subscribe,2));
//          log.debug("--添加车辆电磁锁回调处理类");
            client.connect(options);
        }catch (Exception e) {
            e.printStackTrace();
        }
    }

    public MqttClient getMqttClient(String carId) throws MqttException {
        ArdSyCarRtuService carRtuService = SpringUtils.getBean(ArdSyCarRtuService.class);
        //获取电磁锁地址
        String mqttUrl = carRtuService.url("ElectromagneticLockUrl");
        MqttClient client = new MqttClient(mqttUrl,carId);
        //log.debug("--创建"+carId+"号车辆电子锁mqtt客户端");
        return client;
    }

    public MqttConnectOptions getMqttConnectOptions(){
        MqttConnectOptions options = new MqttConnectOptions();
        //设置用户名密码
        options.setUserName("admin");
        options.setPassword("xzx12345".toCharArray());
        // 设置超时时间
        options.setConnectionTimeout(100);
        // 设置会话心跳时间
        options.setKeepAliveInterval(60);
        // 是否清除session
        options.setCleanSession(true);
//      log.debug("--生成"+carId+"号车辆电子锁mqtt配置对象");
        return options;
    }

    public String publishCar(String carId,String topic,String message,String type) throws MqttException {
        MqttClient client = getMqttClient(carId);
        MqttConnectOptions options = getMqttConnectOptions();
        MqttMessage msg = new MqttMessage(message.getBytes());
        msg.setQos(2);
        client.publish(topic,msg);
        client.disconnect();
        return "发布"+type+"指令成功！";
    }

}