如何使用pymongo将集合转储到json文件

问题描述：

我正在尝试将集合转储到.json文件，但是在pymongo教程中查看后，我找不到与之相关的任何东西.

I am trying to dump a collection to .json file but after looking in pymongo tutorial I can not find any thing that relates to it.

教程链接: https://api.mongodb.com/python/current/tutorial.html

答

只需获取所有文档并将其保存到文件中，例如:

Just get all documents and save them to file e.g.:

import json
from pymongo import MongoClient

if __name__ == '__main__':
    client = MongoClient()
    db = client.db_name
    collection = db.collection_name
    cursor = collection.find({})
    file = open("collection.json", "w")
    file.write('[')
    for document in cursor:
        file.write(json.dumps(document))
        file.write(',')
    file.write(']')

如何使用pymongo将集合转储到json文件

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