Spring 一些默认的BeanPostProcessor加载时间

专为注解方式来处理的：

在AnnotationConfigUtils的registerAnnotationConfigProcessors方法注入以下几类：
"org.springframework.context.annotation.internalConfigurationAnnotationProcessor"  ->ConfigurationClassPostProcessor

"org.springframework.context.annotation.internalAutowiredAnnotationProcessor" -> AutowiredAnnotationBeanPostProcessor

"org.springframework.context.annotation.internalRequiredAnnotationProcessor" -> RequiredAnnotationBeanPostProcessor

"org.springframework.context.annotation.internalCommonAnnotationProcessor" - >  CommonAnnotationBeanPostProcessor

"org.springframework.context.event.internalEventListenerProcessor" -> EventListenerMethodProcessor

"org.springframework.context.event.internalEventListenerFactory" ->  DefaultEventListenerFactory

 

该方法在构建AnnotatedBeanDefinitionReader 和ClassPathBeanDefinitionScanner 执行scan方法时被调用

springBoot:

AnnotationConfigApplicationContext 构造函数中初始化AnnotatedBeanDefinitionReader 和 ClassPathBeanDefinitionScanner

AnnotationConfigWebApplicationContext 在loadBeanDefinitions 方法中 初始化reader、scanner。 该方法在父类AbstractRefreshableApplicationContext调用refreshBeanFactory。源头在AbstractApplicationContext的refresh()方法调用obtainFreshBeanFactory -> refreshBeanFactory.

SpringApplication.run ->SpringApplication. prepareContext -> SpringApplication.load ->BeanDefinitionLoader.load -> source instanceof Package 时 会调用ClassPathBeanDefinitionScanner.scan

 

  XmlWebApplicationContext则是XmlBeanDefinitionReader.