出现问题:
[D][mqtt:103]: Resolving MQTT broker IP address...
[22:49:13][W][mqtt:127]: Couldn't resolve IP address for '10.0.40.222# mqtt服务器ip/域名'!
[22:49:13][D][mqtt:103]: Resolving MQTT broker IP address...
[22:49:20][W][mqtt:127]: Couldn't resolve IP address for '10.0.40.222# mqtt服务器ip/域名'!
[22:49:20][D][mqtt:103]: Resolving MQTT broker IP address...
[22:49:27][W][mqtt:127]: Couldn't resolve IP address for '10.0.40.222# mqtt服务器ip/域名'!
[22:49:27][D][mqtt:103]: Resolving MQTT broker IP address...
[22:49:34][W][mqtt:127]: Couldn't resolve IP address for '10.0.40.222# mqtt服务器ip/域名'!
[22:49:34][D][mqtt:103]: Resolving MQTT broker IP address...
[22:49:41][W][mqtt:127]: Couldn't resolve IP address for '10.0.40.222# mqtt服务器ip/域名'!
[22:49:48][D][mqtt:103]: Resolvin[W][mqtt:127]: Couldn't resolve IP address for '10.0.40.222# mqtt服务器ip/域名'!
[22:49:48][D][mqtt:103]: Resolving MQTT broker IP address...
[22:49:13][W][mqtt:127]: Couldn't resolve IP address for '10.0.40.222# mqtt服务器ip/域名'!
从这报错信息上看,你在配置MQTT服务器的配置文件里,用#做了注释,但是它把#没处理成注释,也当成了服务器域名的一部分了。
所以你把注释都删了就好了。