## 接口的使用
org.springframework.beans.PropertyAccessor

- 使用PropertyAccessor的程序包
  程序包 | 说明
  --- | ---
  org.springframework.beans | This package contains interfaces and classes for manipulating Java beans.

- - ### org.springframework.beans中PropertyAccessor的使用

    org.springframework.beans中PropertyAccessor的子接口
    限定符和类型 | 接口和说明
    --- | ---
    `interface` | `BeanWrapper` The central interface of Spring's low-level JavaBeans infrastructure.
    `interface` | `ConfigurablePropertyAccessor` Interface that encapsulates configuration methods for a PropertyAccessor.

    实现PropertyAccessor的org.springframework.beans中的类
    限定符和类型 | 类和说明
    --- | ---
    `class` | `AbstractNestablePropertyAccessor` A basic `ConfigurablePropertyAccessor` that provides the necessary infrastructure for all typical use cases.
    `class` | `AbstractPropertyAccessor` Abstract implementation of the `PropertyAccessor` interface.
    `class` | `BeanWrapperImpl` Default `BeanWrapper` implementation that should be sufficient for all typical use cases.
    `class` | `DirectFieldAccessor` `ConfigurablePropertyAccessor` implementation that directly accesses instance fields.