Python操作Mongodb插入資料的兩種方法：insert_one()與insert_many()
阿新 • • 發佈：2018-12-24
sys.setdefaultencoding('utf8')
import web
from pymongo import MongoClient
class getPltfList(object):
def __init__(self):
self.db1 = web.database(dbn='mysql', db = 'episode', user = 'root', pw= 'abc111--', host = '127.0.0.1')
self.db1.printing = False
self.db2 = web.database(dbn='mysql', db = 'episode_soc', user = 'root', pw= 'abc111--', host = '127.0.0.1')
self.db2.printing = False
self.db3 = web.database(dbn='mysql', db = 'cl_episode', user = 'root', pw= 'abc111--', host = '127.0.0.1')
self.db3.printing = False
self.db4 = web.database(dbn='mysql', db = 'cl_episode_soc', user = 'root', pw= 'abc111--', host = '127.0.0.1')
self.db4.printing = False
def __call__(self):
return self.createPltfList()
def createPltfList(self):
self.ckpltfList = list(self.db1.query('select name, ip from EPISODE_PLTF_INFO order by id DESC'))
self.ckpltfList += list(self.db2.query('select name, ip from EPISODE_PLTF_INFO order by id DESC'))
self.clpltfList = list(self.db3.query('select name, ip from EPISODE_PLTF_INFO order by id DESC'))
self.clpltfList += list(self.db4.query('select name, ip from EPISODE_PLTF_INFO order by id DESC'))
return self.ckpltfList,self.clpltfList
if __name__ == '__main__' :
mpList = list()
flag = 0
tmp = 0
sum1 = 0
sum2 = 0
pltfList = getPltfList()()
client = MongoClient("127.0.0.1", 27017)
mdb = client.episode
collection = mdb.pltf_basic_info
# print (type(pltfList[1])) #list
result= list()
for pltf_my in pltfList[0]:
pltf_mog = collection.find()
for record in pltf_mog:
IP = record.get('Cfg').get('Debug_IP')
Name = record.get('Cfg').get('Register_Name')
# print IP, Name
if IP == pltf_my['ip'] and Name == pltf_my['name'] :
flag = 1
# print IP, Name
break
else:
flag = 0
if flag == 0 :
data1 = {"Cfg" : {"Debug_IP" : pltf_my['ip'],"Register_Name":pltf_my['name'], "Site":"SH-CK"} }
# print data1
result.append((data1))
# collection.insert_one(data1)
# collection.delete_one(data)
sum1 = sum1+1
# print len(result)
# collection.insert_many(result)
for pltf_my in pltfList[1]:
pltf_mog = collection.find()
for record in pltf_mog:
IP = record.get('Cfg').get('Debug_IP')
Name = record.get('Cfg').get('Register_Name')
if pltf_my['ip'].encode("utf-8") == IP.encode("utf-8") and pltf_my['name'].encode("utf-8") == Name.encode("utf-8") :
tmp = 1
# print IP, Name
break
else:
tmp = 0
if tmp == 0 :
data2 = {"Cfg" : {"Debug_IP":pltf_my['ip'],"Register_Name":pltf_my['name'], "Site":"SH-CL"} }
# print data2
result.append((data2))
# collection.insert_one(data2)
# collection.delete_one(data)
sum2 = sum2+1
collection.insert_many(result)
print sum1,sum2
剛開始的時候我使用的是insert_one()方法，一條一條的插入到mongodb的集合裡，但是計算出的sum有出入。
在除錯的過程中我發現：
註釋掉 # collection.insert_one(data1) # collection.insert_one(data2)
計算出來的sum1 = 193 sum2 = 222 這是合理的，因為ck_mysql裡有193條記錄，cl_mysql裡有234條記錄，mongod裡有總共有15條，但是12條是與cl_mysql重複，所以正確。
但是當我去掉註釋使用collection.insert_one(data1) collection.insert_one(data2)時，打印出的sum1=181
sum2 = 213
也就是說少了幾個資料，我不知道去哪了。
想了好多辦法，於是採用insert_many()的方法插入。先定義一個list(),將每個資料(資料的型別是dict)追加到list裡：reslult.append(data1/data2),最後result裡就會含有所有的資料，一起插入。
於是乎，問題解決了。
可是我還是很困惑insert_one()哪裡出問題了！！！！！！