修复bug1-mqtt断开重连时，topic没有订阅。

修复bug2-上报property数据，如果数据解析异常，客户端将断开。

springboot/wumei-iot/src/main/java/com/ruoyi/iot/mqtt/EmqxCallback.java

@@ -12,7 +12,7 @@ import org.springframework.stereotype.Component;
  * @Description 消费监听类
  */
 @Component
-public class EmqxCallback implements MqttCallback {
+public class EmqxCallback implements MqttCallbackExtended {
     private static final Logger logger = LoggerFactory.getLogger(EmqxCallback.class);
 
     @Autowired
@@ -24,17 +24,9 @@ public class EmqxCallback implements MqttCallback {
     @Override
     public void connectionLost(Throwable throwable) {
         try {
-            // 重连mqtt
-            while(true) {
-                logger.info("mqtt连接断开，重新连接中...");
-                EmqxClient.client.reconnect();
-                Thread.sleep(10000);
-                if(EmqxClient.client.isConnected()){
-                    logger.info("mqtt已经重新连接");
-                    break;
-                }
-            }
-        } catch (MqttException | InterruptedException e) {
+            logger.info("mqtt断开连接--");
+            //EmqxService.client 添加配置 options.setAutomaticReconnect(true);会自动重连
+        } catch (Exception e) {
             // e.printStackTrace();
             logger.error("发生错误："+e.getMessage());
         }
@@ -47,8 +39,23 @@ public class EmqxCallback implements MqttCallback {
         emqxService.subscribeCallback(topic,mqttMessage);
     }
 
+    /**
+     * 发布消息后，到达MQTT服务器，服务器回调消息接收
+     * @param iMqttDeliveryToken
+     */
     @Override
     public void deliveryComplete(IMqttDeliveryToken iMqttDeliveryToken) {
         // 消息到达 MQTT 代理时触发的事件
     }
+
+    /**
+     * 监听mqtt连接消息
+     * @param reconnect
+     * @param serverURI
+     */
+    @Override
+    public void connectComplete(boolean reconnect, String serverURI) {
+        logger.info("mqtt已经重新连接！！");
+        //连接后，可以在此做初始化事件，或订阅
+    }
 }

springboot/wumei-iot/src/main/java/com/ruoyi/iot/mqtt/EmqxClient.java

@@ -43,6 +43,11 @@ public class EmqxClient {
             options.setPassword(password.toCharArray());
             options.setConnectionTimeout(timeout);
             options.setKeepAliveInterval(keepalive);
+            //设置自动重新连接
+            options.setAutomaticReconnect(true);
+            /*设置为false，断开连接后，不清除session，重连后仍然是之前的session，
+            保留订阅的主题，能接受到离线期间的消息*/
+            options.setCleanSession(false);
             EmqxClient.client=client;
             client.setCallback(emqxCallback);
             clientConnect(options,client);

springboot/wumei-iot/src/main/java/com/ruoyi/iot/mqtt/EmqxService.java

@@ -118,12 +118,16 @@ public class EmqxService {
      * @param message
      */
     private void reportProperty(Long productId,String deviceNum,String message,boolean isShadow){
+        try {
             List<ThingsModelValueRemarkItem> thingsModelValueRemarkItems=JSON.parseArray(message, ThingsModelValueRemarkItem.class);
             ThingsModelValuesInput input=new ThingsModelValuesInput();
             input.setProductId(productId);
             input.setDeviceNumber(deviceNum);
             input.setThingsModelValueRemarkItem(thingsModelValueRemarkItems);
             deviceService.reportDeviceThingsModelValue(input,1,isShadow);
+        }catch (Exception e){
+            logger.error("接收属性数据，解析数据时异常 message={}",e.getMessage());
+        }
     }
 
     /**