[Solved] error: mongoosserverselectionerror: connect econnreused 127.0 0.1:27017

Mongodb suddenly reported an error, the foreground could not get the data, and the mongodb software could not be opened

node:22368) UnhandledPromiseRejectionWarning: MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017
    at NativeConnection.Connection.openUri (D:\HBuilder work place\huaRui\2.0\serve\node_modules\mongoose\lib\connection.js:797:32)

Solution: Task Manager — Service — mongodb — Open