`fix`

ruoyi-admin/src/main/resources/application.yml

@@ -269,9 +269,9 @@ management:
       external-file: ./logs/sys-console.log
 
 mqtt:
-  url: tcp://200.200.19.121:31005
+  url: ${MQTT_URL:tcp://200.200.19.121:31005}
   clientid: iotc_server
-  user:
-  password:
-  topic: /sensor/#
+  user: ${MQTT_USER:iotc}
+  password: ${MQTT_PWD:iotc}
+  topic: ${MQTT_TOPIC:/sensor/#}
   saveAndForward: ${DATASAVE:false}