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## org.springframework.web.portlet
Interface HandlerExceptionResolver

All Known Implementing Classes:
  AbstractHandlerExceptionResolver, AnnotationMethodHandlerExceptionResolver, 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:
  2.0
Author:
  Juergen Hoeller, John A. Lewis

Method Summary
`ModelAndView` | `resolveException(RenderRequest request, RenderResponse 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.
`ModelAndView` | `resolveException(ResourceRequest request, ResourceResponse 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(RenderRequest request,
                                  RenderResponse 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.

  Parameters:
    `request` - current portlet request
    `response` - current portlet 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

### resolveException

    ModelAndView resolveException(ResourceRequest request,
                                  ResourceResponse 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.

  Parameters:
    `request` - current portlet request
    `response` - current portlet 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

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