ParameterNameDiscoverer (Spring Framework 4.3.30.RELEASE API)

所有已知实现类:
AspectJAdviceParameterNameDiscoverer, DefaultParameterNameDiscoverer, LocalVariableTableParameterNameDiscoverer, PrioritizedParameterNameDiscoverer, StandardReflectionParameterNameDiscoverer
```
public interface ParameterNameDiscoverer
```
Interface to discover parameter names for methods and constructors.
Parameter name discovery is not always possible, but various strategies are available to try, such as looking for debug information that may have been emitted at compile time, and looking for argname annotation values optionally accompanying AspectJ annotated methods.
从以下版本开始:
2.0
作者:
Rod Johnson, Adrian Colyer

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`String[]`	`getParameterNames(Constructor<?> ctor)`	Return parameter names for this constructor, or `null` if they cannot be determined.
`String[]`	`getParameterNames(Method method)`	Return parameter names for this method, or `null` if they cannot be determined.

- 方法详细资料
  - getParameterNames
```
String[] getParameterNames(Method method)
```
    Return parameter names for this method, or null if they cannot be determined.
    参数:
    method - method to find parameter names for
    返回:
    an array of parameter names if the names can be resolved, or null if they cannot
  - getParameterNames
```
String[] getParameterNames(Constructor<?> ctor)
```
    Return parameter names for this constructor, or null if they cannot be determined.
    参数:
    ctor - constructor to find parameter names for
    返回:
    an array of parameter names if the names can be resolved, or null if they cannot