我最终实现了HandlerExceptionResolver：
@Component public class ExceptionResolverImpl implements HandlerExceptionResolver {private static final Logger LOG = LoggerFactory.getLogger(ExceptionResolverImpl.class);@Overridepublic ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object obj, Exception exc) { if(exc instanceof MaxUploadSizeExceededException) { response.setContentType("text/html"); response.setStatus(HttpStatus.REQUEST_ENTITY_TOO_LARGE.value()); try { PrintWriter out = response.getWriter(); Long maxSizeInBytes = ((MaxUploadSizeExceededException) exc).getMaxUploadSize(); String message = "Maximum upload size of " + maxSizeInBytes + " Bytes per attachment exceeded"; //send json response JSonObject json = new JSonObject(); json.put(REConstants.JSON_KEY_MESSAGE, message); json.put(REConstants.JSON_KEY_SUCCESS, false); String body = json.toString(); out.println("<html><body><textarea>" + body + "</textarea></body></html>"); return new ModelAndView(); } catch (IOException e) { LOG.error("Error writing to output stream", e); } } //for default behaviour return null;}}
