How to get the verbatim request body in Spring MVC?

 

I have a Spring MVC (3.2.2) application where I need to check a cryptographic signature (delivered in a request header) of the request body, which contains data of type application/x-www-form-urlencoded

My problem: Spring MVC seems to make it impossible to get the actual, unprocessed HTTP request body, and thus to check the signature.

  • When I use the @RequestBody annotation in the request handler method, I get the contents, but the individual form fields are in random order - apparently regenerated from parsed form data.
  • When I use a Parameter of type HttpServletRequest , its body is empty
  • so are Reader or InputStream parameters.

    • How can I prevent or bypass this preprocessing of the request body?

    现在，我使用一个servlet过滤器作为解决方法 - 它首先在过滤器链中，读取正文内容并将它们放入请求属性中，然后在控制器中检索该属性。

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