Question

I have a UTF-8 character encoding filter and a filter-mapping for *.jsp. However, one of my .jsp files returns a binary response (e.g. GIF) and I’d like to exclude it.

How can I do that?

Answer 1

using .jsp return a gif might be a bad practise

besides a web.xml filter settings
your can extend the spring one and make it binary safe

public class BinarySafeCharacterEncodingFilter extends CharacterEncodingFilter {

    @Override
    protected void doFilterInternal(HttpServletRequest request,
            HttpServletResponse response, FilterChain filterChain)
            throws ServletException, IOException {

        if(!"image/gif".equals(response.getContentType())){
            super.doFilterInternal(request, response, filterChain);
        }


    }

}