curl --location '/api/v1/device/connect/info?device_id=undefined' \
--header 'x-token: {{x-token}}'{"code":200,"message":"SUCCESS","data":{"协议端口":"1883","设备上报遥测主题":"devices/telemetry","设备订阅遥测主题":"devices/telemetry/{device_number}/{message_id}","设备上报数据示例":"{\"switch\":1}"}}