BsonSerializationException occurs if element name ends in a period

问题

I am writing a C# application that reads from an XML file, converts that to JSON, and uploads to MongoDB. Some of our tags are structured with a period at the end, like so:

<BatteryTest.>GOOD</BatteryTest.>

Using the Newtonsoft library I am able to convert the XML to JSON without a problem. It is when I go to deserialize it to a BsonDocument that I have trouble:

var document = MongoDB.Bson.Serialization.BsonSerializer.Deserialize<BsonDocument>(jsonText);

I get the following error message:

An exception of type 'MongoDB.Bson.BsonSerializationException' occurred in mscorlib.dll but was not handled in user code

Additional information: Element name 'BatteryTest.' is not valid'.

I have looked at the documentation but I haven't found anything that would explain how I can change the formatting properties of the deserializer. This is valid XML so I am not sure why the deserializer would choke on it, either.

Is this invalid JSON? If so, is there a way to still insert it into MongoDB without dropping that period?

回答1:

As the the dot can be used in MongoDB queries, it can not be used in field names. You will have to preprocess the JSON before converting it into a BSONDocument.

来源：https://stackoverflow.com/questions/34418691/bsonserializationexception-occurs-if-element-name-ends-in-a-period