spring里的BeanPostProcessor

图片来源:深入剖析Spring(三)——Bean的生命周期

spring里的BeanPostProcessor_第1张图片

这张图里一个表明了bean的生命周期,另外一个也说明了BeanPostProcessor在设置了bean的属性后的前置处理与后置处理。
这个是BeanPostProcessor的定义:

/**
 * Factory hook that allows for custom modification of new bean instances —
 * for example, checking for marker interfaces or wrapping beans with proxies.
 *
 * 

Typically, post-processors that populate beans via marker interfaces * or the like will implement {@link #postProcessBeforeInitialization}, * while post-processors that wrap beans with proxies will normally * implement {@link #postProcessAfterInitialization}. * */ public interface BeanPostProcessor { @Nullable default Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { return bean; } @Nullable default Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { return bean; } }

spring里的BeanPostProcessor_第2张图片
这个是BeanPostProcessor所有子类,以后再来分析下。

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