org.springframework.web.servlet

## Interface HandlerExceptionResolver

- All Known Implementing Classes:
    AbstractHandlerExceptionResolver, AbstractHandlerMethodExceptionResolver, AnnotationMethodHandlerExceptionResolver, DefaultHandlerExceptionResolver, ExceptionHandlerExceptionResolver, HandlerExceptionResolverComposite, ResponseStatusExceptionResolver, SimpleMappingExceptionResolver

      public interface HandlerExceptionResolver

  Interface to be implemented by objects than can resolve exceptions thrown during handler mapping or execution, in the typical case to error views. Implementors are typically registered as beans in the application context.

  Error views are analogous to the error page JSPs, but can be used with any kind of exception including any checked exception, with potentially fine-granular mappings for specific handlers.

  Since:
    22.11.2003
  Author:
    Juergen Hoeller

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `ModelAndView` | `resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)` Try to resolve the given exception that got thrown during on handler execution, returning a ModelAndView that represents a specific error page if appropriate.

- - ### Method Detail

    - #### resolveException

          ModelAndView resolveException(HttpServletRequest request,
                                      HttpServletResponse response,
                                      Object handler,
                                      Exception ex)

      Try to resolve the given exception that got thrown during on handler execution, returning a ModelAndView that represents a specific error page if appropriate.

      The returned ModelAndView may be empty to indicate that the exception has been resolved successfully but that no view should be rendered, for instance by setting a status code.

      Parameters:
        `request` - current HTTP request
        `response` - current HTTP response
        `handler` - the executed handler, or `null` if none chosen at the time of the exception (for example, if multipart resolution failed)
        `ex` - the exception that got thrown during handler execution
      Returns:
        a corresponding ModelAndView to forward to, or `null` for default processing