java.lang.Object
- org.springframework.web.method.annotation.AbstractWebArgumentResolverAdapter

所有已实现的接口:
HandlerMethodArgumentResolver
直接已知子类:
ServletWebArgumentResolverAdapter
```
public abstract class AbstractWebArgumentResolverAdapter
extends Object
implements HandlerMethodArgumentResolver
```
An abstract base class adapting a WebArgumentResolver to the HandlerMethodArgumentResolver contract.
Note: This class is provided for backwards compatibility. However it is recommended to re-write a WebArgumentResolver as HandlerMethodArgumentResolver. Since supportsParameter(org.springframework.core.MethodParameter) can only be implemented by actually resolving the value and then checking the result is not WebArgumentResolver#UNRESOLVED any exceptions raised must be absorbed and ignored since it's not clear whether the adapter doesn't support the parameter or whether it failed for an internal reason. The HandlerMethodArgumentResolver contract also provides access to model attributes and to WebDataBinderFactory (for type conversion).
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
AbstractWebArgumentResolverAdapter(WebArgumentResolver adaptee)
Create a new instance.

方法概要

所有方法实例方法抽象方法具体方法
修饰符和类型	方法	说明
`protected abstract NativeWebRequest`	`getWebRequest()`	Required for access to NativeWebRequest in `supportsParameter(org.springframework.core.MethodParameter)`.
`Object`	`resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory)`	Delegate to the `WebArgumentResolver` instance.
`boolean`	`supportsParameter(MethodParameter parameter)`	Actually resolve the value and check the resolved value is not `WebArgumentResolver.UNRESOLVED` absorbing _any_ exceptions.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - AbstractWebArgumentResolverAdapter
```
public AbstractWebArgumentResolverAdapter(WebArgumentResolver adaptee)
```
    Create a new instance.
- 方法详细资料
  - supportsParameter
```
public boolean supportsParameter(MethodParameter parameter)
```
    Actually resolve the value and check the resolved value is not WebArgumentResolver.UNRESOLVED absorbing _any_ exceptions.
    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
```
@Nullable
public Object resolveArgument(MethodParameter parameter,
                              @Nullable
                              ModelAndViewContainer mavContainer,
                              NativeWebRequest webRequest,
                              @Nullable
                              WebDataBinderFactory binderFactory)
                       throws Exception
```
    Delegate to the WebArgumentResolver instance.
    指定者:
    resolveArgument 在接口中 HandlerMethodArgumentResolver
    参数:
    parameter - the method parameter to resolve. This parameter must have previously been passed to HandlerMethodArgumentResolver.supportsParameter(org.springframework.core.MethodParameter) which must have returned true.
    mavContainer - the ModelAndViewContainer for the current request
    webRequest - the current request
    binderFactory - a factory for creating WebDataBinder instances
    返回:
    the resolved argument value, or null if not resolvable
    抛出:
    IllegalStateException - if the resolved value is not assignable to the method parameter.
    Exception - in case of errors with the preparation of argument values
  - getWebRequest
```
protected abstract NativeWebRequest getWebRequest()
```
    Required for access to NativeWebRequest in supportsParameter(org.springframework.core.MethodParameter).

类 AbstractWebArgumentResolverAdapter

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

AbstractWebArgumentResolverAdapter

方法详细资料

supportsParameter

resolveArgument

getWebRequest