Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException

Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException

问题

上个在cmd里面mongodb安装目录bin目录下输入的mongod的窗口关闭了

解决方法

1.data文件

在MongoDB安装好后,在MongoDB根目录下建立一个data文件夹,再在data文件夹中建立db文件夹
Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException
Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException

2.输入命令

在cmd输入mongod.exe --dbpath D:\MongoDB\data
D:\MongoDB\data (代表你的要存放的位置,这里是我的位置)
再次打开cmd命令输入mongo
Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException