BeanFactoryPostProcessor和BeanPostProcessor

1. BeanFactoryPostProcessor調用（見AbstractApplicationContext.refresh）：

>> 建立DefaultListableBeanFactory --> loadBeanDefinitions

1）BeanDefinitionRegistryPostProcessor.postProcessBeanDefinitionRegistry（編碼註冊）

2）BeanDefinitionRegistryPostProcessor.postProcessBeanDefinitionRegistry（配置註冊）：PriorityOrdered排序 --> Ordered排序 --> 無序

3）BeanFactoryPostProcessor.postProcessBeanFactory（編碼註冊）：BeanDefinitionRegistryPostProcessor --> BeanFactoryPostProcessor

4）BeanFactoryPostProcessor.postProcessBeanFactory（配置註冊）：PriorityOrdered排序 --> Ordered排序 --> 無序

 

2. BeanPostProcessor註冊：

1）PriorityOrdered排序 --> Ordered排序 --> 無序

2）MergedBeanDefinitionPostProcessor

 

3. BeanPostProcessor調用（見DefaultListableBeanFactory.createBean）：

1）InstantiationAwareBeanPostProcessor.applyBeanPostProcessorsBeforeInstantiation（resolveBeforeInstantiation）

>> 獲取bean --> 6

>> createBeanInstance（默認：CglibSubclassingInstantiationStrategy.instantiate） --> 2

2）MergedBeanDefinitionPostProcessor.postProcessMergedBeanDefinitioInstantiationAwareBeanPostProcessor

3）InstantiationAwareBeanPostProcessor.postProcessAfterInstantiation

>> autowireByName / autowireByType

4）InstantiationAwareBeanPostProcessor.postProcessPropertyValues

>> applyPropertyValues

5）BeanPostProcessor.postProcessBeforeInitialization（@postConstruct）

>> InitializingBean.afterPropertiesSet --> invokeInitMethod（init-method ）

6）BeanPostProcessor.postProcessAfterInitialization

>> 單實例（容器初始化完成）：SmartInitializingSingleton.afterSingletonsInstantiated

 

4. 應用

1）BeanFactoryPostProcessor

2）BeanPostProcessor：ApplicationContextAwareProcessor、InitDestroyAnnotationBeanPostProcessor、AutowiredAnnotationBeanPostProcessor、AOP