org.springframework.web.servlet.handler
Class AbstractHandlerMethodExceptionResolver

java.lang.Object
  org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver
      org.springframework.web.servlet.handler.AbstractHandlerMethodExceptionResolver

All Implemented Interfaces:

Ordered, HandlerExceptionResolver

Direct Known Subclasses:

ExceptionHandlerExceptionResolver

public abstract class AbstractHandlerMethodExceptionResolver
extends AbstractHandlerExceptionResolver

Abstract base class for HandlerExceptionResolver implementations that support handling exceptions from handlers of type HandlerMethod.

Since:

3.1

Author:

Rossen Stoyanchev

Field Summary

Fields inherited from class org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver

logger

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

AbstractHandlerMethodExceptionResolver()

Method Summary

protected ModelAndView	doResolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) Actually resolve the given exception that got thrown during on handler execution, returning a ModelAndView that represents a specific error page if appropriate.
protected abstract ModelAndView	doResolveHandlerMethodException(HttpServletRequest request, HttpServletResponse response, HandlerMethod handlerMethod, Exception ex) Actually resolve the given exception that got thrown during on handler execution, returning a ModelAndView that represents a specific error page if appropriate.
protected boolean	shouldApplyTo(HttpServletRequest request, Object handler) Checks if the handler is a HandlerMethod instance and performs the check against the bean instance it contains.

Methods inherited from class org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver

buildLogMessage, getOrder, logException, prepareResponse, preventCaching, resolveException, setMappedHandlerClasses, setMappedHandlers, setOrder, setPreventResponseCaching, setWarnLogCategory

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AbstractHandlerMethodExceptionResolver

public AbstractHandlerMethodExceptionResolver()

Method Detail

shouldApplyTo

protected boolean shouldApplyTo(HttpServletRequest request,
                                Object handler)

Checks if the handler is a HandlerMethod instance and performs the check against the bean instance it contains. If the provided handler is not an instance of HandlerMethod, false is returned instead.

Overrides:

shouldApplyTo in class AbstractHandlerExceptionResolver

Parameters:

request - current HTTP request

handler - the executed handler, or null if none chosen at the time of the exception (for example, if multipart resolution failed)

Returns:

whether this resolved should proceed with resolving the exception for the given request and handler

See Also:

AbstractHandlerExceptionResolver.setMappedHandlers(java.util.Set), AbstractHandlerExceptionResolver.setMappedHandlerClasses(java.lang.Class[])

doResolveException

protected final ModelAndView doResolveException(HttpServletRequest request,
                                                HttpServletResponse response,
                                                Object handler,
                                                Exception ex)

Description copied from class: AbstractHandlerExceptionResolver

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

May be overridden in subclasses, in order to apply specific exception checks. Note that this template method will be invoked after checking whether this resolved applies ("mappedHandlers" etc), so an implementation may simply proceed with its actual exception handling.

Specified by:

doResolveException in class AbstractHandlerExceptionResolver

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

doResolveHandlerMethodException

protected abstract ModelAndView doResolveHandlerMethodException(HttpServletRequest request,
                                                                HttpServletResponse response,
                                                                HandlerMethod handlerMethod,
                                                                Exception ex)

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

May be overridden in subclasses, in order to apply specific exception checks. Note that this template method will be invoked after checking whether this resolved applies ("mappedHandlers" etc), so an implementation may simply proceed with its actual exception handling.

Parameters:

request - current HTTP request

response - current HTTP response

handlerMethod - the executed handler method, 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