AbstractHandlerExceptionResolver.java 文件源码

/**
 * Checks whether this resolver is supposed to apply (i.e. the handler
 * matches in case of "mappedHandlers" having been specified), then
 * delegates to the {@link #doResolveException} template method.
 */
@Override
public ModelAndView resolveException(RenderRequest request, RenderResponse response, Object handler, Exception ex) {
    if (shouldApplyTo(request, handler)) {
        return doResolveException(request, response, handler, ex);
    }
    else {
        return null;
    }
}