首先需要有連接mongodb數據庫基本信息 :

CONFIG_HOST?= '11.111.11.11'

CONFIG_PORT='27017'

CONFIG_DATABASE = 'databasename'

CONFIG_USER='username'

CONFIG_PASSWORD = XXXXXX

CONFIG_TABLE = 'tablename'

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python通過pymongo對mongodb進行訪問，

提取出databasename中tablename中的colname_a,colname_b,colname_c四個字段的所有內容：

            
              import pymongo
import pandas as pd

MONGO_URI = 'mongodb://username:xxxxxx@11.111.11.11:27017/databasename'

client = pymongo.MongoClient(MONGO_URI)
mongo_db = client[databasename]
mongo_db_collection = mongo_db[tablename]

df=pd.DataFrame(list(mongo_db_collection.find({}, {'colname_a':1,'colname_b':1,'colname_c':1})))
print(df.head())
            
          

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