Package 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, Juergen Hoeller

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

Constructors

Constructor	Description
AbstractHandlerMethodExceptionResolver()

Method Summary

Modifier and Type	Method	Description
protected final ModelAndView	doResolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)	Actually resolve the given exception that got thrown during 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	hasGlobalExceptionHandlers()	Whether this resolver has global exception handlers, for example, not declared in the same class as the HandlerMethod that raised the exception and therefore can apply to any handler.
protected boolean	shouldApplyTo(HttpServletRequest request, Object handler)	Checks if the handler is a HandlerMethod or the resolver has global exception handlers and then delegates to the base class implementation of #shouldApplyTo passing the bean of the HandlerMethod if necessary.

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

addMappedHandlerClass, buildLogMessage, getMappedHandlerClasses, getOrder, hasHandlerMappings, logException, prepareResponse, preventCaching, resolveException, setMappedHandlerClasses, setMappedHandlerPredicate, setMappedHandlers, setOrder, setPreventResponseCaching, setWarnLogCategory

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractHandlerMethodExceptionResolver

public AbstractHandlerMethodExceptionResolver()

Method Details

shouldApplyTo

protected boolean shouldApplyTo(HttpServletRequest request,
 @Nullable
 Object handler)

Checks if the handler is a HandlerMethod or the resolver has global exception handlers and then delegates to the base class implementation of #shouldApplyTo passing the bean of the HandlerMethod if necessary. Otherwise, returns false.

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:

• HandlerMethod
• hasGlobalExceptionHandlers()

hasGlobalExceptionHandlers

protected boolean hasGlobalExceptionHandlers()

Whether this resolver has global exception handlers, for example, not declared in the same class as the HandlerMethod that raised the exception and therefore can apply to any handler.

Since:

5.3

doResolveException

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

Description copied from class: AbstractHandlerExceptionResolver

Actually resolve the given exception that got thrown during 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 resolver 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 in the resolution chain

doResolveHandlerMethodException

@Nullable
protected abstract ModelAndView doResolveHandlerMethodException(HttpServletRequest request,
 HttpServletResponse response,
 @Nullable
 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