Spring IOC全网最详细时序图（非Web方式启动）---持续更新

扫描指定包下面的带有@Component注解的类

AspectJAwareAdvisorAutoProxyCreator

registerOrEscalateApcAsRequired()

applyBeanPostProcessorsBeforeInstantiation()

invokeBeanDefinitionRegistryPostProcessors()

AbstractAdvisorAutoProxyCreator

DefaultResourceLoader

- classLoader:ClassLoader

+ DefaultResourceLoader()

1. 处理内部类上有@Component注解的情况2. 处理@PropertySource3. 处理@ComponentScan4. 处理@Import5. 处理@ImportResource6. 处理@Bean7. 处理接口的default方法8. 处理superclass

registerBeanDefinition()

1.  处理@ComponentScan的一些属性2. 调用doScan()

invokeBeanFactoryPostProcessors()

实例化并调用所有注册的BeanFactoryPostProcessor，优先BeanDefinitionRegistryPostProcessors

Invoke the given BeanDefinitionRegistryPostProcessor beans

BeanFactoryAspectJAdvisorsBuilder

postProcessBeforeInstantiation()

new DefaultListableBeanFactory();

parse()

ClassPathBeanDefinitionScanner

resolveBeforeInstantiation()

register()

BeanFactoryAdvisorRetrievalHelper

loadBeanDefinitionsForConfigurationClass()

查找事务代理

BeanDefinitionRegistryPostProcessors

postProcessBeanDefinitionRegistry()

findCandidateAdvisors()

创建classLoader：ClassUtils.getDefaultClassLoader();

ReflectiveAspectJAdvisorFactory

PostProcessorRegistrationDelegate

添加到BeanDefinitions：org.springframework.context.annotation.internalConfigurationAnnotationProcessororg.springframework.context.event.internalEventListenerFactoryorg.springframework.context.event.internalEventListenerProcessororg.springframework.context.annotation.internalAutowiredAnnotationProcessor如果支持JSR-250和JPA还有其他要添加

AnnotationConfigApplicationContext

- reader:AnnotatedBeanDefinitionReader

+ AnnotationConfigApplicationContext()

getAdvisors()

AbstractAutoProxyCreator

加载类继承BeanDefinitionRegistryPostProcessor，可以自定义类继承此类，实现拓展

postProcessBeanFactory()

registerBeanPostProcessors()

GenericApplicationContext

- beanFactory:DefaultListableBeanFactory

+ GenericApplicationContext()

implements

loadBeanDefinitionsFromRegistrars()

Ordered

1. 挑选出未处理过的BeanDefinition，按Order排序2. 检测是否有自定义的类名生成策略3. 依次处理每个@Configuration class

ConfigurationClassPostProcessor

registerBean()

事先将ConfigurationClassPostProcessor添加到Processors，然后激活，用来扫描包下的类，符合条件的添加到BeanDefinition Map

this.reader = new AnnotatedBeanDefinitionReader(this);  this.scanner = new ClassPathBeanDefinitionScanner(this);

BeanDefinitionRegistryPostProcessor

+ postProcessBeanDefinitionRegistry()

ConfigurationClassBeanDefinitionReader

AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(MainConfig.class);

循环调用registerBean()

createBean()

以@ComponentScan为例来分析

getBean()

findCandidateComponents()

AbstractApplicationContext

- resourcePatternResolver:ResourcePatternResolver

+ AbstractApplicationContext()

processConfigurationClass()

辅助类

AnnotationAwareAspectJAutoProxyCreator

ClassPathScanningCandidateComponentProvider

BeanFactoryPostProcessor

+ postProcessBeanFactory()

AbstractAutowireCapableBeanFactory

processImports()

doRegisterBean()

register \"org.springframework.aop.config.internalAutoProxyCreator\"

loadBeanDefinitions()

AnnotatedBeanDefinitionReader

scanCandidateComponents()

ConfigurationClassPostProcessor implements BeanDefinitionRegistryPostProcessor所以先执行，加载指定包或类内加载的Bean

invoke registerBeanDefinitions()

doScan()

ImportBeanDefinitionRegistrar

+ registerBeanDefinitions()

AspectJAutoProxyRegistrar

refresh()

this.reader.register(componentClasses);

this()

AnnotationConfigApplicationContext 

1. 判断是否解析过：aspectNames==null2. 若没有，获取容器中所有组件名称3. 循环所有beanName4. 通过beanName获取beanType5. 根据beanType判断是不是切面类6. 如果是，获取增强器getAdvisors()，获取切面类和切面名称7. 

doProcessConfigurationClass()

findAdvisorBeans()

ComponentScanAnnotationParser

保存在DefaultListableBeanFactory#beanDefinitionMap（ConcurrentHashMap）

调用构造方法

登记BeanDefinition

doGetBean()

registerPostProcessor()

PriorityOrdered

shouldSkip()

@Import（AOP处理@EnableAspectJAutoProxy）

AopConfigUtils

BeanDefinitionReaderUtils

DefaultListableBeanFactory

buildAspectJAdvisors()

用来加载资源：getResourcePatternResolver();

AnnotationConfigUtils

ConfigurationClassParser

AbstractBeanFactory