MongoDB_pymongo

　　python使用pymongo访问MongoDB的基本操作

　　安装pymongo: pip install pymongo

from pymongo import MongoClient
import datetime
from pprint import pprint

#连接
#client = MongoClient('localhost',27017)
client = MongoClient('mongodb://root:123@localhost:27017')

#使用数据库
db = client['db1']

#查看数据库下所有的集合
print(db.collection_names(include_system_collections=False))

#创建集合
table_user = db['userinfo']

#插入文档
user0 = {
    'id':1,
    'name':'lary',
    'birth':datetime.datetime.now(),
    'age':10,
    'hobbies':['music','read','dancing'],
    'addr':{
        'country':'China',
        'city':'BJ'
    }
}
user1 = {
    'id':2,
    'name':'lary1',
    'birth':datetime.datetime.now(),
    'age':10,
    'hobbies':['music','read','dancing'],
    'addr':{
        'country':'China',
        'city':'BJ'
    }
}

user2 = {
    'id':3,
    'name':'lary2',
    'birth':datetime.datetime.now(),
    'age':10,
    'hobbies':['music','read','dancing'],
    'addr':{
        'country':'China',
        'city':'BJ'
    }
}

#插入数据
# res = table_user.insert_many([user0,user1,user2]).inserted_ids
# print(table_user.count())

#查找数据
#pprint(table_user.find_one())
# for item in table_user.find():
#     pprint(item)

print(table_user.find_one({'id':{'$gte':1},'name':'lary'}))

#更新数据
table_user.update({'id':1},{'name':'lary'})

#传入新的文档替换旧的文档
table_user.save(
    {
        'id':2,
        'name':'lary_test'
    }
)