Couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by :: ��

2025/07/0718:06:34 hotcomm 1521

1. Question example

Will you encounter the following problems when typing mongo in the terminal?

couldn't connect to server 127.0.0.1:27017, connection attempt failed: SockettException: Error connecting to 127.0.0.1:27017 :: caused by :: �� connect to �� connect to server 127.0.0.1:27017, connection attempt failed: SockettException: Error connecting to 127.0.0.1:27017 :: caused by :: �� connect to server 127.0.0.1:27017 :: caused by :: �� connect to server 127.0.0.1:27017 :: caused by :: �� connect to server 127.0.0.1:27017 :: caused by :: �� connect to server 127.0.0.1:27017 :: caused by :: �� connect to server 127.0.0.1:27017 :: caused by :: �� connect to server 127.0.0.1:27017 :: caused by :: Problem Analysis

In fact, this problem is not complicated, it is just because your mongodb is not started, just start it.

3. Problem Solved

Enter the bin directory of mongodb (to enter the bin directory under mongodb you installed)

-logpath (can specify the port number)

mongod --logpath "E:\Professional software\mongodb\data\log\mongodb.log" --dbpath "E:\Professional software\mongodb\data\db" --logappend

mongod --logpath "E:\Professional software\mongodb\data\log\mongodb.log" --dbpath "E:\Professional Software\mongodb\data\db" --logappend --port 8888

This way, the startup is successful, and you can proceed to the next step. Just open a command prompt and enter mongo.

Of course, this is just a situation, and the solution is for reference only.

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