MongoDB pymongo模块 插入数据

insert_one():

对一张不存在表插入数据，他会在插入数据同时自动生成数据表,

例如我要对chat集合插入数据，插入一个空数据

import pymongo

mongo_client = pymongo.MongoClient(
    host='192.168.0.112',
    port=27017,
    username="admin",
    password=""
)

mongo_db = mongo_client["db1"]
# 插入数据
res = mongo_db.chat.insert_one({})
print(res,res.inserted_id)

返回对象

<pymongo.results.InsertOneResult object at 0x0000000002EDBF08>

inserted_id 获取插入的数据的_id ObjectId

5cb0ba3abd99392b1427c25e

> db.chat.find()
{ "_id" : ObjectId("5cb0ba3abd99392b1427c25e") }

insert_many() :插入多条数据

import pymongo

mongo_client = pymongo.MongoClient(
    host='192.168.0.112',
    port=27017,
    username="admin",
    password=""
)

mongo_db = mongo_client["db1"]
# 插入数据
res = mongo_db.chat.insert_many(
    [
        {
            'name':"jack","age":13,
        },

        {
            'name':"mike","age":33,
        },
    ]
)
print(res,res.inserted_ids)

拿到对象

<pymongo.results.InsertManyResult object at 0x0000000002EDAF88>

inserted_ids 可以返回多个插入的数据的 _id objectID

[ObjectId('5cb0bbf9bd993914d8b5d82c'), ObjectId('5cb0bbf9bd993914d8b5d82d')]