python连接mongo

from pymongo import MongoClient

conn = MongoClient(host= host, port=port)

db = conn[db]#连接指定数据库

db[col].find_one(x)

db[col].update({"_id": spinfo["_id"]}, spinfo, True)

db[col].update({"_id": spinfo["_id"]},{"$set":spinfo}, True)

.db[table].insert(spinfo)

db[table].find()

class nosql:    
    def __init__(self,host, port, db):#主机地址，端口，数据库名称
        self.conn = MongoClient(host= host, port=port)
        self.db = self.conn[db]#连接指定数据库

def updatespgood(self, spinfo):
    self.db["spgoods"].update({"_id": spinfo["_id"]}, spinfo, True)
    return True

conn = nosql(‘localhost‘, 27017, ‘goods‘)

def getSpinfo(item,value,depart,comp):
    result = pnosql.conn.getthespgood({item: value, "depart":depart, "comp": comp})