public class RequestResponseBodyMethodProcessor extends AbstractMessageConverterMethodProcessor
@RequestBody and handles
return values from methods annotated with @ResponseBody by reading
and writing to the body of the request or response with an
HttpMessageConverter.
An @RequestBody method argument is also validated if it is
annotated with @javax.validation.Valid. In case of validation
failure, MethodArgumentNotValidException is raised and results
in a 400 response status code if DefaultHandlerExceptionResolver
is configured.
allSupportedMediaTypes, logger, messageConverters| Constructor and Description |
|---|
RequestResponseBodyMethodProcessor(List<HttpMessageConverter<?>> messageConverters) |
RequestResponseBodyMethodProcessor(List<HttpMessageConverter<?>> messageConverters,
ContentNegotiationManager contentNegotiationManager) |
| Modifier and Type | Method and Description |
|---|---|
void |
handleReturnValue(Object returnValue,
MethodParameter returnType,
ModelAndViewContainer mavContainer,
NativeWebRequest webRequest)
Handle the given return value by adding attributes to the model and
setting a view or setting the
ModelAndViewContainer.setRequestHandled(boolean) flag to true
to indicate the response has been handled directly. |
protected <T> Object |
readWithMessageConverters(NativeWebRequest webRequest,
MethodParameter methodParam,
Type paramType)
Create the method argument value of the expected parameter type by
reading from the given request.
|
Object |
resolveArgument(MethodParameter parameter,
ModelAndViewContainer mavContainer,
NativeWebRequest webRequest,
WebDataBinderFactory binderFactory)
Resolves a method parameter into an argument value from a given request.
|
boolean |
supportsParameter(MethodParameter parameter)
Whether the given method parameter is
supported by this resolver.
|
boolean |
supportsReturnType(MethodParameter returnType)
Whether the given method return type is
supported by this handler.
|
createOutputMessage, getProducibleMediaTypes, writeWithMessageConverters, writeWithMessageConverterscreateInputMessage, readWithMessageConverterspublic RequestResponseBodyMethodProcessor(List<HttpMessageConverter<?>> messageConverters)
public RequestResponseBodyMethodProcessor(List<HttpMessageConverter<?>> messageConverters, ContentNegotiationManager contentNegotiationManager)
public boolean supportsParameter(MethodParameter parameter)
HandlerMethodArgumentResolverparameter - the method parameter to checktrue if this resolver supports the supplied parameter;
false otherwisepublic boolean supportsReturnType(MethodParameter returnType)
HandlerMethodReturnValueHandlerreturnType - the method return type to checktrue if this handler supports the supplied return type;
false otherwisepublic Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception
ModelAndViewContainer provides access to the model for the
request. A WebDataBinderFactory provides a way to create
a WebDataBinder instance when needed for data binding and
type conversion purposes.parameter - the method parameter to resolve. This parameter must
have previously been passed to
HandlerMethodArgumentResolver.supportsParameter(org.springframework.core.MethodParameter)
and it must have returned truemavContainer - the ModelAndViewContainer for the current requestwebRequest - the current requestbinderFactory - a factory for creating WebDataBinder instancesnull.MethodArgumentNotValidException - if validation failsHttpMessageNotReadableException - if RequestBody.required()
is true and there is no body content or if there is no suitable
converter to read the content with.Exception - in case of errors with the preparation of argument valuesprotected <T> Object readWithMessageConverters(NativeWebRequest webRequest, MethodParameter methodParam, Type paramType) throws IOException, HttpMediaTypeNotSupportedException
AbstractMessageConverterMethodArgumentResolverreadWithMessageConverters in class AbstractMessageConverterMethodArgumentResolverT - the expected type of the argument value to be createdwebRequest - the current requestmethodParam - the method argumentparamType - the type of the argument value to be createdIOException - if the reading from the request failsHttpMediaTypeNotSupportedException - if no suitable message converter is foundpublic void handleReturnValue(Object returnValue, MethodParameter returnType, ModelAndViewContainer mavContainer, NativeWebRequest webRequest) throws IOException, HttpMediaTypeNotAcceptableException
HandlerMethodReturnValueHandlerModelAndViewContainer.setRequestHandled(boolean) flag to true
to indicate the response has been handled directly.returnValue - the value returned from the handler methodreturnType - the type of the return value. This type must have
previously been passed to
HandlerMethodReturnValueHandler.supportsReturnType(org.springframework.core.MethodParameter)
and it must have returned truemavContainer - the ModelAndViewContainer for the current requestwebRequest - the current requestIOExceptionHttpMediaTypeNotAcceptableException