pymongo

config.py (创建)

MONGO_URL='localhost'
MONGO_DB='taobao'
MONGO_TABLE='prodect'

spider.py

import pymongo
from pymongo import MongoClient
from config import *

#1、链接

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

#2、use 数据库

db=client['db2'] #等同于：client.db1
# db=client[MONGO_DB] # 注意是中括号 [ ]

def save_to_mongo(result):
try:
if db[MONGO_TABLE].insert(result):
print("保存到数据库成功',result)
except Exception:
print("存储失败")

#3、查看库下所有的集合
print(db.collection_names(include_system_collections=False))

#4、创建集合
table_user=db['userinfo'] #等同于：db.user

#5、插入文档
import datetime
user0={
"_id":1,
"name":"egon",
"birth":datetime.datetime.now(),
"age":10,
'hobbies':['music','read','dancing'],
'addr':{
'country':'China',
'city':'BJ'
}
}

user1={
"_id":2,
"name":"alex",
"birth":datetime.datetime.now(),
"age":10,
'hobbies':['music','read','dancing'],
'addr':{
'country':'China',
'city':'weifang'
}
}
# res=table_user.insert_many([user0,user1]).inserted_ids
# print(res)
# print(table_user.count())

#6、查找

# from pprint import pprint#格式化细
# pprint(table_user.find_one())
# for item in table_user.find():
# pprint(item)

# print(table_user.find_one({"_id":{"$gte":1},"name":'egon'}))

#7、更新
table_user.update({'_id':1},{'name':'EGON'})

#8、传入新的文档替换旧的文档
table_user.save(
{
"_id":2,
"name":'egon_xxx'
}
)