Spring reading request body twice

Question

In spring I have a controller with an endpoint like so:

@RequestMapping(method = RequestMethod.POST)
@ResponseStatus(HttpStatus.CREATED)
@ResponseBody
publ         


        

Answer 1

As referenced in this post: How to Log HttpRequest and HttpResponse in a file?, spring provides the AbstractRequestLoggingFilter you can use to log the request.

AbstractRequestLoggingFilter API Docs, found here

Answer 2

To read the request body multiple times, we must cache the initial payload. Because once the original InputStream is consumed we can't read it again.

Firstly, Spring MVC provides the ContentCachingRequestWrapper class which stores the original content. So we can retrieve the body multiple times calling the getContentAsByteArray() method.

So in your case, you can make use of this class in a Filter:

@Component
public class CachingRequestBodyFilter extends GenericFilterBean {

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)
  throws IOException, ServletException {
        HttpServletRequest currentRequest = (HttpServletRequest) servletRequest;
        ContentCachingRequestWrapper wrappedRequest = new ContentCachingRequestWrapper(currentRequest);
        // Other details

        chain.doFilter(wrappedRequest, servletResponse);
    }
}

Alternatively, you can register CommonsRequestLoggingFilter in your application. This filter uses ContentCachingRequestWrapper behind the scenes and is designed for logging the requests.

Answer 3

I also tried to do that in Spring but i could not find way to pass my custom http request to chain so what did was,i have written traditional j2ee filter in that i have passed my custom http request to chain that is it then onward i can read http request more than once

Check this example http://www.myjavarecipes.com/how-to-read-post-request-data-twice-in-spring/