PrincipalMethodArgumentResolver (Spring Framework 4.3.30.RELEASE API)

java.lang.Object
- org.springframework.messaging.simp.annotation.support.PrincipalMethodArgumentResolver

所有已实现的接口:: HandlerMethodArgumentResolver

public class PrincipalMethodArgumentResolver
extends Object
implements HandlerMethodArgumentResolver

从以下版本开始:: 4.0
作者:: Rossen Stoyanchev

构造器概要
构造器
构造器说明
PrincipalMethodArgumentResolver()

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, Message<?> message)`	Resolves a method parameter into an argument value from a given message.
`boolean`	`supportsParameter(MethodParameter parameter)`	Whether the given method parameter is supported by this resolver.

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
  - PrincipalMethodArgumentResolver
```
public PrincipalMethodArgumentResolver()
```
- 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,
                              Message<?> message)
                       throws Exception
```
    从接口复制的说明: HandlerMethodArgumentResolver
    Resolves a method parameter into an argument value from a given message.
    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.
    message - the currently processed message
    返回:
    the resolved argument value, or null
    抛出:
    Exception - in case of errors with the preparation of argument values