【Python】pymongo連結mongo
pymongo模組連結mongo
1.連結單例項mongo
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# - * - coding : utf - 8 - * -
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import datetime
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import pymongo
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import time
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client = pymongo . MongoClient ( "127.0.0.1" , 27017 )
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db = client . get_database ( "collection" )
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db . authenticate ( 'collection' , '78hRdJEnJcHRb4qA' )
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#print ( db . collection_names ( ) )
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redefine_collection = db . get_collection ( 'redefine-collection' )
alluser=[]
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demos = redefine_collection . find ( { 'event_id' : '0109001' , 'event_info.url' : { '$exists' : 'true' } , "ctime" : { "$gte" : 1525881600000}} , no_cursor_timeout = True )
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for item in demos :
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if len ( item [ 'event_info' ] [ 'url' ] . replace ( r '/' , '' ) . split ( '.' ) [ - 1 ] ) < = 5 :
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alluser . append ( item [ 'event_info' ] [ 'url' ] . replace ( r '/' , '' ) . split ( '.' ) [ - 1 ] )
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demos . close ( )
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print len ( alluser )
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2.連線複製集
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from pymongo import MongoClient
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conn = MongoClient ( [ '192.168.3.11:27017' , '192.168.3.12:27017' , '192.168.3.13:27017' ],replicaset='shard1' )
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from pymongo import ReadPreference
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db = conn . get_database ( 'hnrtest' , read_preference = ReadPreference . SECONDARY_PREFERRED )
3.mongo常見操作
# #####read client # client = pymongo.MongoReplicaSetClient(['172.31.46.25:27017,172.31.43.36:27017,172.31.40.242:27017'],replicaset='shard1') # db = client.get_database("collection") # db.authenticate('collection', '78hRdJEnJcHRb4qA') # # print db.client.read_preference # print db.client.primary # print db.client.secondaries # print db.client.arbiters # print db.command('ismaster') #####read client client = pymongo.MongoClient(['172.31.32.223:20000']) db = client.get_database("admin") db.authenticate('admin', 'ggxP6tPI971K3W0r') # print db.client.read_preference # print db.client.primary # print db.client.secondaries # print db.client.arbiters # print db.client.is_primary # print db.command('ismaster') # print db.command('currentOp') # print db.command('replSetGetStatus') # print db.list_collection_names() statement=client.collection.get_collection('statement') ###獲取對應db下的對應集合 print statement.count() # client.collection.add_user('newTestUser', 'Test123', roles=[{'role':'readWrite','db':'collection'}]) ####新增使用者 # client.collection.remove_user('newTestUser') ####刪除使用者 db2 = client.get_database("collection") db2.add_user('newTestUser', 'Test123', roles=[{'role':'readWrite','db':'collection'}]) ###新增使用者 print db.current_op() # options = {'lock': True} # db.client.fsync(**options) # print db.client.is_locked # #### # print db.command('fsyncUnlock') # print db.client.is_locked
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參考:http : / / blog . 51cto . com/hnr520/1874506
來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/29096438/viewspace-2156378/,如需轉載,請註明出處,否則將追究法律責任。
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