2022-05-31 22:24:40.014 ERROR 7460 --- [ main] com.lm.demo.mqtt.client.EmqClient : mqtt客户端连接服务端失败,失败原因MqttException
2022-05-31 22:24:42.309 ERROR 7460 --- [ main] com.lm.demo.mqtt.client.EmqClient : 订阅主题失败,errormsg=客户机未连接,topicFilter=testtopic/#,qos=2
2022-05-31 22:24:42.319 ERROR 7460 --- [ Thread-6] com.lm.demo.mqtt.client.EmqClient : 发布消息失败,errormsg=客户机未连接,topic=testtopic/123,msg=sendSend: publish msg :2022-05-31T22:24:42.314,qos=2,retain=false
2022-05-31 22:24:42.664 INFO 7460 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 4991 (http) with context path ''
