Python3 using the MONGO database

1 initialization

After you create the database, you can type MONGO directly (if the port is the default 27017)

Use admin--Select Admin Database

Db.createuser ({User: ' admin ', pwd: ' admin123 ', roles: [{role: ' Root ', db: ' Admin '}]})

The user is then shown to be successfully added

2 Connecting the database

There are two ways to access the database afterwards

The first of these is:

1mongo 2use admin 3db.auth (' admin ', ' admin123 ')

The second type is

Mongo-u admin-p [Email protected]# 127.0.0.1/admin

I think it's the first way to remember something.

If you do not do this, your operation under the database will show no authorization

3 Adding and removing users

Db.createuser ({User: ' admin ', pwd: ' admin123 ', roles: [{role: ' Root ', db: ' admin '} '}) This is similar to the previous operation

User role has root read write ReadWrite

But must be under the corresponding database, or the operation is very cumbersome

4 Adding data

db.Hello.insert({name:‘World‘})

db.Hello.find()

Python3 using the MONGO database