Class RequestMappingHandlerAdapter

All Implemented Interfaces:
Aware, BeanFactoryAware, InitializingBean, ApplicationContextAware, Ordered, ServletContextAware, HandlerAdapter

public class RequestMappingHandlerAdapter extends AbstractHandlerMethodAdapter implements BeanFactoryAware, InitializingBean
Rossen Stoyanchev, Juergen Hoeller, Sebastien Deleuze
See Also:
  • Field Details

  • Constructor Details

    • RequestMappingHandlerAdapter

      public RequestMappingHandlerAdapter()
  • Method Details

    • setCustomArgumentResolvers

      public void setCustomArgumentResolvers(@Nullable List<HandlerMethodArgumentResolver> argumentResolvers)
      Provide resolvers for custom argument types. Custom resolvers are ordered after built-in ones. To override the built-in support for argument resolution use setArgumentResolvers(java.util.List<>) instead.
    • getCustomArgumentResolvers

      @Nullable public List<HandlerMethodArgumentResolver> getCustomArgumentResolvers()
      Return the custom argument resolvers, or null.
    • setArgumentResolvers

      public void setArgumentResolvers(@Nullable List<HandlerMethodArgumentResolver> argumentResolvers)
      Configure the complete list of supported argument types thus overriding the resolvers that would otherwise be configured by default.
    • getArgumentResolvers

      @Nullable public List<HandlerMethodArgumentResolver> getArgumentResolvers()
      Return the configured argument resolvers, or possibly null if not initialized yet via afterPropertiesSet().
    • setInitBinderArgumentResolvers

      public void setInitBinderArgumentResolvers(@Nullable List<HandlerMethodArgumentResolver> argumentResolvers)
      Configure the supported argument types in @InitBinder methods.
    • getInitBinderArgumentResolvers

      @Nullable public List<HandlerMethodArgumentResolver> getInitBinderArgumentResolvers()
      Return the argument resolvers for @InitBinder methods, or possibly null if not initialized yet via afterPropertiesSet().
    • setCustomReturnValueHandlers

      public void setCustomReturnValueHandlers(@Nullable List<HandlerMethodReturnValueHandler> returnValueHandlers)
      Provide handlers for custom return value types. Custom handlers are ordered after built-in ones. To override the built-in support for return value handling use setReturnValueHandlers(java.util.List<>).
    • getCustomReturnValueHandlers

      @Nullable public List<HandlerMethodReturnValueHandler> getCustomReturnValueHandlers()
      Return the custom return value handlers, or null.
    • setReturnValueHandlers

      public void setReturnValueHandlers(@Nullable List<HandlerMethodReturnValueHandler> returnValueHandlers)
      Configure the complete list of supported return value types thus overriding handlers that would otherwise be configured by default.
    • getReturnValueHandlers

      @Nullable public List<HandlerMethodReturnValueHandler> getReturnValueHandlers()
      Return the configured handlers, or possibly null if not initialized yet via afterPropertiesSet().
    • setModelAndViewResolvers

      public void setModelAndViewResolvers(@Nullable List<ModelAndViewResolver> modelAndViewResolvers)
      Provide custom ModelAndViewResolvers.

      Note: This method is available for backwards compatibility only. However, it is recommended to re-write a ModelAndViewResolver as HandlerMethodReturnValueHandler. An adapter between the two interfaces is not possible since the HandlerMethodReturnValueHandler.supportsReturnType(org.springframework.core.MethodParameter) method cannot be implemented. Hence ModelAndViewResolvers are limited to always being invoked at the end after all other return value handlers have been given a chance.

      A HandlerMethodReturnValueHandler provides better access to the return type and controller method information and can be ordered freely relative to other return value handlers.

    • getModelAndViewResolvers

      @Nullable public List<ModelAndViewResolver> getModelAndViewResolvers()
      Return the configured ModelAndViewResolvers, or null.
    • setContentNegotiationManager

      public void setContentNegotiationManager(ContentNegotiationManager contentNegotiationManager)
      Set the ContentNegotiationManager to use to determine requested media types. If not set, the default constructor is used.
    • setMessageConverters

      public void setMessageConverters(List<HttpMessageConverter<?>> messageConverters)
      Provide the converters to use in argument resolvers and return value handlers that support reading and/or writing to the body of the request and response.
    • getMessageConverters

      public List<HttpMessageConverter<?>> getMessageConverters()
      Return the configured message body converters.
    • setRequestBodyAdvice

      public void setRequestBodyAdvice(@Nullable List<RequestBodyAdvice> requestBodyAdvice)
      Add one or more RequestBodyAdvice instances to intercept the request before it is read and converted for @RequestBody and HttpEntity method arguments.
    • setResponseBodyAdvice

      public void setResponseBodyAdvice(@Nullable List<ResponseBodyAdvice<?>> responseBodyAdvice)
      Add one or more ResponseBodyAdvice instances to intercept the response before @ResponseBody or ResponseEntity return values are written to the response body.
    • setWebBindingInitializer

      public void setWebBindingInitializer(@Nullable WebBindingInitializer webBindingInitializer)
      Provide a WebBindingInitializer with "global" initialization to apply to every DataBinder instance.
    • getWebBindingInitializer

      @Nullable public WebBindingInitializer getWebBindingInitializer()
      Return the configured WebBindingInitializer, or null if none.
    • setTaskExecutor

      public void setTaskExecutor(AsyncTaskExecutor taskExecutor)
      Set the default AsyncTaskExecutor to use when a controller method return a Callable. Controller methods can override this default on a per-request basis by returning an WebAsyncTask.

      If your application has controllers with such return types, please configure an AsyncTaskExecutor as the one used by default is not suitable for production under load.

    • setAsyncRequestTimeout

      public void setAsyncRequestTimeout(long timeout)
      Specify the amount of time, in milliseconds, before concurrent handling should time out. In Servlet 3, the timeout begins after the main request processing thread has exited and ends when the request is dispatched again for further processing of the concurrently produced result.

      If this value is not set, the default timeout of the underlying implementation is used.

      timeout - the timeout value in milliseconds
    • setCallableInterceptors

      public void setCallableInterceptors(List<CallableProcessingInterceptor> interceptors)
      Configure CallableProcessingInterceptor's to register on async requests.
      interceptors - the interceptors to register
    • setDeferredResultInterceptors

      public void setDeferredResultInterceptors(List<DeferredResultProcessingInterceptor> interceptors)
      Configure DeferredResultProcessingInterceptor's to register on async requests.
      interceptors - the interceptors to register
    • setReactiveAdapterRegistry

      public void setReactiveAdapterRegistry(ReactiveAdapterRegistry reactiveAdapterRegistry)
      Configure the registry for reactive library types to be supported as return values from controller methods.
    • getReactiveAdapterRegistry

      public ReactiveAdapterRegistry getReactiveAdapterRegistry()
      Return the configured reactive type registry of adapters.
    • setIgnoreDefaultModelOnRedirect

      @Deprecated(since="6.0") public void setIgnoreDefaultModelOnRedirect(boolean ignoreDefaultModelOnRedirect)
      as of 6.0 without a replacement; once removed, the default model will always be ignored on redirect
      By default, the content of the "default" model is used both during rendering and redirect scenarios. Alternatively a controller method can declare a RedirectAttributes argument and use it to provide attributes for a redirect.

      Setting this flag to true guarantees the "default" model is never used in a redirect scenario even if a RedirectAttributes argument is not declared. Setting it to false means the "default" model may be used in a redirect if the controller method doesn't declare a RedirectAttributes argument.

      As of 6.0, this property is set to true by default.

      See Also:
    • setSessionAttributeStore

      public void setSessionAttributeStore(SessionAttributeStore sessionAttributeStore)
      Specify the strategy to store session attributes with. The default is DefaultSessionAttributeStore, storing session attributes in the HttpSession with the same attribute name as in the model.
    • setCacheSecondsForSessionAttributeHandlers

      public void setCacheSecondsForSessionAttributeHandlers(int cacheSecondsForSessionAttributeHandlers)
      Cache content produced by @SessionAttributes annotated handlers for the given number of seconds.

      Possible values are:

      • -1: no generation of cache-related headers
      • 0 (default value): "Cache-Control: no-store" will prevent caching
      • 1 or higher: "Cache-Control: max-age=seconds" will ask to cache content; not advised when dealing with session attributes

      In contrast to the "cacheSeconds" property which will apply to all general handlers (but not to @SessionAttributes annotated handlers), this setting will apply to @SessionAttributes handlers only.

      See Also:
    • setSynchronizeOnSession

      public void setSynchronizeOnSession(boolean synchronizeOnSession)
      Set if controller execution should be synchronized on the session, to serialize parallel invocations from the same client.

      More specifically, the execution of the handleRequestInternal method will get synchronized if this flag is "true". The best available session mutex will be used for the synchronization; ideally, this will be a mutex exposed by HttpSessionMutexListener.

      The session mutex is guaranteed to be the same object during the entire lifetime of the session, available under the key defined by the SESSION_MUTEX_ATTRIBUTE constant. It serves as a safe reference to synchronize on for locking on the current session.

      In many cases, the HttpSession reference itself is a safe mutex as well, since it will always be the same object reference for the same active logical session. However, this is not guaranteed across different servlet containers; the only 100% safe way is a session mutex.

      See Also:
    • setParameterNameDiscoverer

      public void setParameterNameDiscoverer(ParameterNameDiscoverer parameterNameDiscoverer)
      Set the ParameterNameDiscoverer to use for resolving method parameter names if needed (e.g. for default attribute names).

      Default is a DefaultParameterNameDiscoverer.

    • setBeanFactory

      public void setBeanFactory(BeanFactory beanFactory)
      A ConfigurableBeanFactory is expected for resolving expressions in method argument default values.
      Specified by:
      setBeanFactory in interface BeanFactoryAware
      beanFactory - owning BeanFactory (never null). The bean can immediately call methods on the factory.
      See Also:
    • getBeanFactory

      @Nullable protected ConfigurableBeanFactory getBeanFactory()
      Return the owning factory of this bean instance, or null if none.
    • afterPropertiesSet

      public void afterPropertiesSet()
      Description copied from interface: InitializingBean
      Invoked by the containing BeanFactory after it has set all bean properties and satisfied BeanFactoryAware, ApplicationContextAware etc.

      This method allows the bean instance to perform validation of its overall configuration and final initialization when all bean properties have been set.

      Specified by:
      afterPropertiesSet in interface InitializingBean
    • supportsInternal

      protected boolean supportsInternal(HandlerMethod handlerMethod)
      Always return true since any method argument and return value type will be processed in some way. A method argument not recognized by any HandlerMethodArgumentResolver is interpreted as a request parameter if it is a simple type, or as a model attribute otherwise. A return value not recognized by any HandlerMethodReturnValueHandler will be interpreted as a model attribute.
      Specified by:
      supportsInternal in class AbstractHandlerMethodAdapter
      handlerMethod - the handler method to check
      whether this adapter can adapt the given method
    • handleInternal

      @Nullable protected ModelAndView handleInternal(HttpServletRequest request, HttpServletResponse response, HandlerMethod handlerMethod) throws Exception
      Description copied from class: AbstractHandlerMethodAdapter
      Use the given handler method to handle the request.
      Specified by:
      handleInternal in class AbstractHandlerMethodAdapter
      request - current HTTP request
      response - current HTTP response
      handlerMethod - handler method to use. This object must have previously been passed to the AbstractHandlerMethodAdapter.supportsInternal(HandlerMethod) this interface, which must have returned true.
      a ModelAndView object with the name of the view and the required model data, or null if the request has been handled directly
      Exception - in case of errors
    • getLastModifiedInternal

      protected long getLastModifiedInternal(HttpServletRequest request, HandlerMethod handlerMethod)
      This implementation always returns -1. An @RequestMapping method can calculate the lastModified value, call WebRequest.checkNotModified(long), and return null if the result of that call is true.
      Specified by:
      getLastModifiedInternal in class AbstractHandlerMethodAdapter
      request - current HTTP request
      handlerMethod - handler method to use
      the lastModified value for the given handler
    • invokeHandlerMethod

      @Nullable protected ModelAndView invokeHandlerMethod(HttpServletRequest request, HttpServletResponse response, HandlerMethod handlerMethod) throws Exception
      Invoke the RequestMapping handler method preparing a ModelAndView if view resolution is required.
      See Also:
    • createInvocableHandlerMethod

      protected ServletInvocableHandlerMethod createInvocableHandlerMethod(HandlerMethod handlerMethod)
      Create a ServletInvocableHandlerMethod from the given HandlerMethod definition.
      handlerMethod - the HandlerMethod definition
      the corresponding ServletInvocableHandlerMethod (or custom subclass thereof)
    • createDataBinderFactory

      protected InitBinderDataBinderFactory createDataBinderFactory(List<InvocableHandlerMethod> binderMethods) throws Exception
      Template method to create a new InitBinderDataBinderFactory instance.

      The default implementation creates a ServletRequestDataBinderFactory. This can be overridden for custom ServletRequestDataBinder subclasses.

      binderMethods - @InitBinder methods
      the InitBinderDataBinderFactory instance to use
      Exception - in case of invalid state or arguments