如何从JSON文本中获取反序列化的C＃对象的类型？

I am trying to get the type of serialized C# object in JSON Text ( $type in JSON text) without deserialising the JSON text to object again . can you please suggest what are all the option do i have?

我试图在JSON文本中获取序列化C#对象的类型(JSON文本中的$ type),而不再将JSON文本反序列化为对象。你能建议我有什么选择吗?

I am using Newtonsoft library for serialization and serialization.

我正在使用Newtonsoft库进行序列化和序列化。

Thanks in advance

提前致谢

2 个解决方案

#1

I don't use Newtonsoft library. However, assuming that $type is either at the start of the file or at the end I'd probably use string functions (psudocode below) which'd be quite fast.

我不使用Newtonsoft库。但是,假设$ type位于文件的开头或结尾处,我可能会使用字符串函数(下面的psudocode),这将非常快。

find $type
i=find next colon

我找到下一个冒号
j=find next comma

j =找到下一个逗号
grab token between i and j

在i和j之间抓取令牌
trim that token

修剪那个令牌
do something useful with the token. Make a type out of it with reflection?

用令牌做一些有用的事情。用反射做出一个类型吗?

How does that sound? While you are at it you could write an extension method. Hit +1 several times and I'll think about writing the code ;-)

听上去怎么样?当你在它时你可以写一个扩展方法。点击+1几次,我会考虑编写代码;-)

#2

Its fairly simple using the Newtonsoft libarary.

使用Newtonsoft图书馆相当简单。

   JObject json = JObject.Parse(JasonText);
   var  type=   json["type"];

#1