MaxUploadSizeExceededException doesn't invoke the exception handling method in Spring

Question

I\'m using Spring 3.2.0. According to this answer, I have the same method in my annotated controller which implements the HandlerExceptionResolver interface suc

Answer 1

From the answer posted by Dirk Lachowski, I have excluded some of the pages which are used for multipart-upload from HiddenHttpMethodFilter.

HiddenHttpMethodFilter was originally given a URL pattern like /*. Therefore, it was tedious to move these pages in a separate directory/folder and specify a different URL patter like /xxx/*. To avoid this, I have inherited OncePerRequestFilter in my own class and excluded these pages used for multipart-upload that worked as expected showing a user-friendly error message on the current page.

package filter;

import java.io.IOException;
import java.util.Locale;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import javax.servlet.http.HttpServletResponse;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
import org.springframework.web.filter.OncePerRequestFilter;

public final class HiddenHttpMethodFilter extends OncePerRequestFilter {

    /**
     * Default method parameter: _method
     */
    public static final String DEFAULT_METHOD_PARAM = "_method";

    private String methodParam = DEFAULT_METHOD_PARAM;

    /**
     * Set the parameter name to look for HTTP methods.
     *
     * @see #DEFAULT_METHOD_PARAM
     */
    public void setMethodParam(String methodParam) {
        Assert.hasText(methodParam, "'methodParam' must not be empty");
        this.methodParam = methodParam;
    }

    private boolean excludePages(String page) {
        //Specifically, in my case, this many pages so far have been excluded from processing avoiding the MaxUploadSizeExceededException in this filter. One could use a RegExp or something else as per requirements.
        if (page.equalsIgnoreCase("Category.htm") || page.equalsIgnoreCase("SubCategory.htm") || page.equalsIgnoreCase("ProductImage.htm") || page.equalsIgnoreCase("Banner.htm") || page.equalsIgnoreCase("Brand.htm")) {
            return false;
        }
        return true;
    }

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

        String servletPath = request.getServletPath();

        if (excludePages(servletPath.substring(servletPath.lastIndexOf("/") + 1, servletPath.length()))) {
            String paramValue = request.getParameter(this.methodParam);
            //The MaxUploadSizeExceededException was being thrown at the preceding line.
            if ("POST".equals(request.getMethod()) && StringUtils.hasLength(paramValue)) {
                String method = paramValue.toUpperCase(Locale.ENGLISH);
                HttpServletRequest wrapper = new filter.HiddenHttpMethodFilter.HttpMethodRequestWrapper(request, method);
                filterChain.doFilter(wrapper, response);
            } else {
                filterChain.doFilter(request, response);
            }
        } else {
            filterChain.doFilter(request, response);
        }
    }

    /**
     * Simple {@link HttpServletRequest} wrapper that returns the supplied
     * method for {@link HttpServletRequest#getMethod()}.
     */
    private static class HttpMethodRequestWrapper extends HttpServletRequestWrapper {

        private final String method;

        public HttpMethodRequestWrapper(HttpServletRequest request, String method) {
            super(request);
            this.method = method;
        }

        @Override
        public String getMethod() {
            return this.method;
        }
    }
}

And in my web.xml file, this filter - filter.HiddenHttpMethodFilter was specified instead of org.springframework.web.filter.HiddenHttpMethodFilter as follows.

    multipartFilter
    org.springframework.web.multipart.support.MultipartFilter


    multipartFilter
    /*



    httpMethodFilter
    filter.HiddenHttpMethodFilter
    


    httpMethodFilter
    /*

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I'm still hoping that there should/could be a fair way to handle the exception in question along with org.springframework.web.filter.HiddenHttpMethodFilter