Spring 一些默認的BeanPostProcessor加載時間

專爲註解方式來處理的：

在AnnotationConfigUtils的registerAnnotationConfigProcessors方法注入以下幾類：
"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

 

該方法在構建AnnotatedBeanDefinitionReader 和ClassPathBeanDefinitionScanner 執行scan方法時被調用

springBoot:

AnnotationConfigApplicationContext 構造函數中初始化AnnotatedBeanDefinitionReader 和 ClassPathBeanDefinitionScanner

AnnotationConfigWebApplicationContext 在loadBeanDefinitions 方法中 初始化reader、scanner。 該方法在父類AbstractRefreshableApplicationContext調用refreshBeanFactory。源頭在AbstractApplicationContext的refresh()方法調用obtainFreshBeanFactory -> refreshBeanFactory.

SpringApplication.run ->SpringApplication. prepareContext -> SpringApplication.load ->BeanDefinitionLoader.load -> source instanceof Package 時 會調用ClassPathBeanDefinitionScanner.scan

 

  XmlWebApplicationContext則是XmlBeanDefinitionReader.