scmy/psdc-business/src/main/java/com/psdc/mqtt/MqttProviderConfig.java

package com.psdc.mqtt;

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.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * mqtt配置类
 */
@Configuration
@Slf4j
public class MqttProviderConfig {

    @Value("${mqtt.url}")
    private String url;

    @Value("${mqtt.username}")
    private String username;

    @Value("${mqtt.password}")
    private String password;

    @Value("${mqtt.qos}")
    private String qos;

    @Value("${mqtt.clientId}")
    private String clientId;

    @Value("${mqtt.timeOut}")
    private int timeOut;

    @Value("${mqtt.keepAlive}")
    private int keepAlive;

    @Value("${mqtt.dataTopic}")
    private String dataTopic;

    @Value("${mqtt.controlTopic}")
    private String controlTopic;

    @Value("${mqtt.controlResponseTopic}")
    private String controlResponseTopic;

    /**
     * 客户端对象
     */
    private MqttClient client;

    /**
     * 客户端连接服务端
     *
     * @param
     * @return void
     * @date 2021/7/30 16:01
     */

    @Bean
    public MyMQTTClient connect() {
        //创建MQTT客户端对象
        MyMQTTClient myMQTTClient = new MyMQTTClient(url, username, password, clientId, timeOut, keepAlive);
        for (int i = 0; i < 10; i++) {
            try {
                myMQTTClient.connect();
                //不同的主题
                myMQTTClient.subscribe(dataTopic, 0);
                myMQTTClient.subscribe(controlTopic, 0);
                myMQTTClient.subscribe(controlResponseTopic, 0);
                return myMQTTClient;
            } catch (MqttException e) {
                log.error("MQTT connect exception,connect time = " + i);
                try {
                    Thread.sleep(2000);
                } catch (InterruptedException e1) {
                    e1.printStackTrace();
                }
            }
        }
        return myMQTTClient;
    }

}