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## org.springframework.web.servlet.mvc.annotation
Class ResponseStatusExceptionResolver

    java.lang.Object
      org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver
          org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver

All Implemented Interfaces:
  Ordered, HandlerExceptionResolver

    public class ResponseStatusExceptionResolver

extends AbstractHandlerExceptionResolver

Implementation of the `HandlerExceptionResolver` interface that uses the `@ResponseStatus` annotation to map exceptions to HTTP status codes.

This exception resolver is enabled by default in the `DispatcherServlet`.

Since:
  3.0
Author:
  Arjen Poutsma

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
`ResponseStatusExceptionResolver()`

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 ModelAndView` | `resolveResponseStatus(ResponseStatus responseStatus, HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)` Template method that handles `@ResponseStatus` annotation.

Methods inherited from class org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver
`buildLogMessage, getOrder, logException, prepareResponse, preventCaching, resolveException, setMappedHandlerClasses, setMappedHandlers, setOrder, setPreventResponseCaching, setWarnLogCategory, shouldApplyTo`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### ResponseStatusExceptionResolver

    public ResponseStatusExceptionResolver()

Method Detail

### doResolveException

    protected 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

### resolveResponseStatus

    protected ModelAndView resolveResponseStatus(ResponseStatus responseStatus,
                                                 HttpServletRequest request,
                                                 HttpServletResponse response,
                                                 Object handler,
                                                 Exception ex)
                                          throws Exception

  Template method that handles `@ResponseStatus` annotation.

  Default implementation send a response error using `HttpServletResponse.sendError(int)`, or `HttpServletResponse.sendError(int, String)` if the annotation has a reason. Returns an empty ModelAndView.

  Parameters:
    `responseStatus` - the annotation
    `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
  Throws:
    `Exception`

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