listener 1883
allow_anonymous true
persistence false
log_dest stdout
log_type all
connection_messages true
allow_publish # 允许发布消息
allow_subscribe # 允许订阅消息
allow_publish_all # 允许发布所有主题
allow_subscribe_all # 允许订阅所有主题
allow_publish_all # 允许发布所有主题
allow_subscribe_all # 允许订阅所有主题