spring源码流程图

new AnnotationConfigApplicationContext(AppConfig.class);

实例化ConfigurationClassPostProcessor后置处理器ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry()

postProcessBeanDefinitionRegistry(){ 获得当前的beandfination 标记为是full类型还是lite类型 获得配置类中的commonscan将扫描到的放入BeanDefinitionMap处理importselect类型放入BeanDefinitionMap}

invokeBeanFactoryPostProcessors

将我们传递进来的配置类注册进BeanFactory的BeanDefinitionMap

处理实现类型为BeanDefinitionRegistryPostProcessor、BeanFactoryPostProcessor接口的后置处理器

  父类构造器     DefaultListableBeanFactory();  this();  register(annotatedClasses);  refresh();

将后置处理器解析为BeanDefinitionConfigurationClassPostProcessorAutowiredAnnotationBeanPostProcessorRequiredAnnotationBeanPostProcessorCommonAnnotationBeanPostProcessorEventListenerMethodProcessor

//执行自定义的BeanFactoryProcessor和内置的BeanFactoryProcessor    invokeBeanFactoryPostProcessors(beanFactory); // 注册BeanPostProcessor    registerBeanPostProcessors(beanFactory);    // Initialize message source for this context.    initMessageSource();    // Initialize event multicaster for this context.    initApplicationEventMulticaster();    // Initialize other special beans in specific context subclasses.    // 空方法    onRefresh();    // Check for listener beans and register them.    registerListeners();    // Instantiate all remaining (non-lazy-init) singletons.    finishBeanFactoryInitialization(beanFactory);    // Last step: publish corresponding event.    finishRefresh();