Class RequestParamMapMethodArgumentResolver
- java.lang.Object
- org.springframework.web.method.annotation.RequestParamMapMethodArgumentResolver
- All Implemented Interfaces:
HandlerMethodArgumentResolver
public class RequestParamMapMethodArgumentResolver extends Object implements HandlerMethodArgumentResolver
ResolvesMap
method arguments annotated with an @RequestParam
where the annotation does not specify a request parameter name. SeeRequestParamMethodArgumentResolver
for resolvingMap
method arguments with a request parameter name.The created
Map
contains all request parameter name/value pairs. If the method parameter type isMultiValueMap
instead, the created map contains all request parameters and all their values for cases where request parameters have multiple values.- Since:
- 3.1
- Author:
- Arjen Poutsma, Rossen Stoyanchev
- See Also:
RequestParamMethodArgumentResolver
Constructor Summary
Constructors Constructor Description RequestParamMapMethodArgumentResolver()
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description 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.
Constructor Detail
RequestParamMapMethodArgumentResolver
public RequestParamMapMethodArgumentResolver()
Method Detail
supportsParameter
public boolean supportsParameter(MethodParameter parameter)
Description copied from interface:HandlerMethodArgumentResolver
Whether the given method parameter is supported by this resolver.- Specified by:
supportsParameter
in interfaceHandlerMethodArgumentResolver
- Parameters:
parameter
- the method parameter to check- Returns:
true
if this resolver supports the supplied parameter;false
otherwise
resolveArgument
public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception
Description copied from interface:HandlerMethodArgumentResolver
Resolves a method parameter into an argument value from a given request. AModelAndViewContainer
provides access to the model for the request. AWebDataBinderFactory
provides a way to create aWebDataBinder
instance when needed for data binding and type conversion purposes.- Specified by:
resolveArgument
in interfaceHandlerMethodArgumentResolver
- Parameters:
parameter
- the method parameter to resolve. This parameter must have previously been passed toHandlerMethodArgumentResolver.supportsParameter(org.springframework.core.MethodParameter)
which must have returnedtrue
.mavContainer
- the ModelAndViewContainer for the current requestwebRequest
- the current requestbinderFactory
- a factory for creatingWebDataBinder
instances- Returns:
- the resolved argument value, or
null
- Throws:
Exception
- in case of errors with the preparation of argument values