看来，这是以下代码的直接结果：
AnnotationMethodHandlerExceptionResolver
private ModelAndView getModelAndView(Method handlerMethod, Object returnValue, ServletWebRequest webRequest) throws Exception { ResponseStatus responseStatusAnn = AnnotationUtils.findAnnotation(handlerMethod, ResponseStatus.class); if (responseStatusAnn != null) { HttpStatus responseStatus = responseStatusAnn.value(); String reason = responseStatusAnn.reason(); if (!StringUtils.hasText(reason)) { // this doesn't commit the response webRequest.getResponse().setStatus(responseStatus.value()); } else { // this commits the response such that any more calls to write to the // response are ignored webRequest.getResponse().sendError(responseStatus.value(), reason); } } /// snip}这已在SPR-8251中报告给Springsource ：
