Mac OS 10.13.6 mongodb版本3.4 brew安裝的, mongodb的服務也是通過brew正常啟動的,開始的時候鏈接27017端口都很正常.但是,升級了jdk到1.8的版本后,怎么鏈接都是失敗,如下圖:Connection failed.SERVER [localhost:27017] (Type: UNKNOWN)?|_/ Connection error (MongoSocketOpenException): Exception opening socket|____/ Socket error: Connection refused (Connection refused)Details:Timed out after 5000 ms while waiting to connect. Client view of cluster state is {type=UNKNOWN, servers=[{address=localhost:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketOpenException: Exception opening socket}, caused by {java.net.ConnectException: Connection refused (Connection refused)}}]請問,哪位知道是什么原因引起的,告訴下,先謝謝啦.