类 RequestHeaderMapMethodArgumentResolver
- java.lang.Object
- org.springframework.web.method.annotation.RequestHeaderMapMethodArgumentResolver
- 所有已实现的接口:
HandlerMethodArgumentResolver
public class RequestHeaderMapMethodArgumentResolver extends Object implements HandlerMethodArgumentResolver
ResolvesMap
method arguments annotated with@RequestHeader
. For individual header values annotated with@RequestHeader
seeRequestHeaderMethodArgumentResolver
instead.The created
Map
contains all request header name/value pairs. The method parameter type may be aMultiValueMap
to receive all values for a header, not only the first one.- 从以下版本开始:
- 3.1
- 作者:
- Arjen Poutsma, Rossen Stoyanchev
构造器概要
构造器 构造器 说明 RequestHeaderMapMethodArgumentResolver()
方法概要
所有方法 实例方法 具体方法 修饰符和类型 方法 说明 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.
构造器详细资料
RequestHeaderMapMethodArgumentResolver
public RequestHeaderMapMethodArgumentResolver()
方法详细资料
supportsParameter
public boolean supportsParameter(MethodParameter parameter)
从接口复制的说明:HandlerMethodArgumentResolver
Whether the given method parameter is supported by this resolver.- 指定者:
supportsParameter
在接口中HandlerMethodArgumentResolver
- 参数:
parameter
- the method parameter to check- 返回:
true
if this resolver supports the supplied parameter;false
otherwise
resolveArgument
public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception
从接口复制的说明: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.- 指定者:
resolveArgument
在接口中HandlerMethodArgumentResolver
- 参数:
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- 返回:
- the resolved argument value, or
null
- 抛出:
Exception
- in case of errors with the preparation of argument values