Deserialize anonymous type with System.Text.Json

问题

I am updating some apps for .NET Core 3.x, and as part of that I'm trying to move from Json.NET to the new System.Text.Json classes. With Json.NET, I could deserialize an anonymous type like so:

var token = JsonConvert.DeserializeAnonymousType(jsonStr, new { token = "" }).token;

Is there an equivalent method in the new namespace?

回答1:

As pointed out by dbc above, this just isn't possible currently. We looked at JsonDocument as a workaround, but it's also missing things like case insensitivity for property names.

So, looks like we'll be sticking to Json.NET for now.

回答2:

Please try this library I wrote as an extension to System.Text.Json to offer missing features: https://github.com/dahomey-technologies/Dahomey.Json.

You will find support for anonymous types.

Setup json extensions by calling on JsonSerializerOptions the extension method SetupExtensions defined in the namespace Dahomey.Json:

JsonSerializerOptions options = new JsonSerializerOptions();
options.SetupExtensions();

Then serialize your class with the JsonSerializerExtensions static type:

var token = JsonSerializerExtensions.DeserializeAnonymousType(jsonStr, new { token = "" }, options).token;

来源：https://stackoverflow.com/questions/59313256/deserialize-anonymous-type-with-system-text-json