无法通过MongoShell连接mongoDB服务器

无法通过MongoShell连接mongoDB服务器,mongodb,Mongodb,当我在命令提示符下尝试mongo命令时,会出现以下错误: MongoDB shell version v4.2.5 connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb 2020-09-05T19:05:18.728+0530 E QUERY [js] Error: couldn't connect to server 127.0.0.1:27017, co

当我在命令提示符下尝试
mongo
命令时,会出现以下错误:

MongoDB shell version v4.2.5
connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb
2020-09-05T19:05:18.728+0530 E  QUERY    [js] Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by :: No connection could be made because the target machine actively refused it. :
connect@src/mongo/shell/mongo.js:341:17
@(connect):2:6

2020-09-05T19:05:18.733+0530 F  -        [main] exception: connect failed
2020-09-05T19:05:18.733+0530 E  -        [main] exiting with code 1

我是MongoDB新手,无法理解如何修复错误。

您需要首先启动MongoDB服务

我通过Brew安装了mongoDB,因此需要启动以下命令:

brew services start mongodb-community@4.4
然后启动
mongo
命令以连接到MongoDB服务器