python - bson.errors.InvalidDocument : key '$oid' must not start with '$' trying to insert document with pymongo

Question

我想从 json 文件中插入文档到集合中，它说 bson.errors.InvalidDocument: key '$oid' must not start with '$' 我该如何解决？

文档示例: [{"name": "Company", "_id": {"$oid": "1234as123541gsdg"}, "info": {"email": "test@gmail.com"}}]

Answer 1

用 bson.ObjectId 类在 Python 中表示 ObjectIds:

from bson import ObjectId

_id = ObjectId("5899e0aca600741755433908")

所以对于一个完整的例子:

from bson import ObjectId

collection.insert(
    {"name": "Company", "_id": ObjectId("5899e0aca600741755433908"),
     "info": {"email": "test@gmail.com"}})

为了加载 MongoDB 扩展 JSON 数据，使用 PyMongo 的 json_util.loads :

from bson.json_util import loads

json_str = '[{"name": "Company", "_id": {"$oid": "5899e0aca600741755433908"}, "info": {"email": "test@gmail.com"}}]'

data = loads(json_str)
print(data)

for doc in data:
    collection.insert(doc)

“loads()”将带有“$oid”的扩展 JSON 语法转换为实际的 ObjectId 实例。