Bean生命周期及回调

InstantiationAwareBeanPostProcessor#postProcessAfterInstantiation实例化后置处理器

@PreDestroy

AutowiredAnnotationBeanPostProcessor

AutowiredAnnotationBeanPostProcessor完成@Autowired、@Value、@Inject注解注入

CommonAnnotationBeanPostProcessor完成@Resource的注入

doCreateBean

preInstantiateSingletons

完成@PostContruct调用

invokeInitMethods

DisposableBeanAdapter#destroy

createBeanInstance

invokeAwareMethods

bean销毁

((BeanNameAware) bean).setBeanName(beanName);((BeanClassLoaderAware) bean).setBeanClassLoader(bcl);((BeanFactoryAware) bean).setBeanFactory(AbstractAutowireCapableBeanFactory.this);

分支一，如果在此过程，用户创建了代理类，就不在走之后的doCreateBean流程了

AbstractAutoProxyCreator创建AOP代理类

createBean

BeanPostProcessor#postProcessAfterInitialization

MergedBeanDefinitionPostProcessor#postProcessMergedBeanDefinition完成相关注解的解析

CommonAnnotationBeanPostProcessor完成@PostConstruct、@PreDestroy、@Resource的解析

InitializingBean#afterPropertiesSet

AutowiredAnnotationBeanPostProcessor完成@Autowired、@Value、@Inject注解的解析

@Bean中或者xml中配置的自定义初始化方法init-method

SmartInstantiationAwareBeanPostProcessor#determineCandidateConstructors查找合适的构造器

SmartInitializingSingleton#afterSingletonsInstantiated

BeanPostProcessor#postProcessAfterInitializationbean初始化后置处理器，最重要就是AOP代理类创建

BeanPostProcessor#postProcessBeforeInitializationbean初始化前置处理器

((EnvironmentAware) bean).setEnvironment(this.applicationContext.getEnvironment());((EmbeddedValueResolverAware) bean).setEmbeddedValueResolver(this.embeddedValueResolver);((ResourceLoaderAware) bean).setResourceLoader(this.applicationContext);((ApplicationEventPublisherAware) bean).setApplicationEventPublisher(this.applicationContext);((MessageSourceAware) bean).setMessageSource(this.applicationContext);((ApplicationContextAware) bean).setApplicationContext(this.applicationContext);

populateBean

@Bean或者xml中定义的默认销毁方法

getBean

DisposableBean#destroy

InstantiationAwareBeanPostProcessor#postProcessBeforeInstantiation实例化前置处理器

CommonAnnotationBeanPostProcessor

initializeBean

ApplicationContextAwareProcessor

InstantiationAwareBeanPostProcessor#postProcessProperties完成属性的注入

doGetBean