类 MatrixVariableMapMethodArgumentResolver
- java.lang.Object
- org.springframework.web.servlet.mvc.method.annotation.MatrixVariableMapMethodArgumentResolver
- 所有已实现的接口:
HandlerMethodArgumentResolver
public class MatrixVariableMapMethodArgumentResolver extends Object implements HandlerMethodArgumentResolver
Resolves arguments of typeMap
annotated with@MatrixVariable
where the annotation does not specify a name. In other words the purpose of this resolver is to provide access to multiple matrix variables, either all or associated with a specific path variable.When a name is specified, an argument of type Map is considered to be a single attribute with a Map value, and is resolved by
MatrixVariableMethodArgumentResolver
instead.- 从以下版本开始:
- 3.2
- 作者:
- Rossen Stoyanchev
构造器概要
构造器 构造器 说明 MatrixVariableMapMethodArgumentResolver()
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 request, 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
MatrixVariableMapMethodArgumentResolver
public MatrixVariableMapMethodArgumentResolver()
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 request, 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 requestrequest
- 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