python：MongoDB數據庫的操作及練習

import pymongoclass MongodbConn(object):def __init__(self):self.CONN = pymongo.MongoClient("mongodb://loan_risk_rw:TVwg5LRH2ituFxn2@172.16.10.173:27001,172.16.10.174:27001/admin?replcaSet=rs001 ")def run(self):database = "loan_risk_db"db = self.CONN[database]#db.authenticate("username", "password")col = db.list_collection_names()# the col is datbases listprint(col)# this is a database, in list loc 4col = col[1]collection = db.get_collection(col)# query one documentdocument = collection.find_one()print(document)# query all documentdocuments = collection.find()for i in documents:# print key of (key: value)print (i.keys())if __name__ == '__main__':mongo_obj = MongodbConn()mongo_obj.run()

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