AOP

Before

AbstractAutowireCapableBeanfactoryresolveBeanInstantiation

五

wrapIfNecessary

After

AspectJExpressionPointcut

create

intercept

AspectJAfterAdvice

AOP对应beanPostProcessor

enhancer

StaticUnadvisedExposedInterceptortargetClass

方法拦截列表：ExposeInvocationIterceptor + 多个InterceptorAndDynamicMethodMatcher(MethodMatcher、MethodInterceptor)当前执行方法拦截列表位置索引：currentInterceptorIndex链式递归调用：CglibMethodInvocation -> ReflectiveMethodInvocation -> proceed() -> List<InterceptorAndDynamicMethodMatcher> list.get(++currentInterceptorIndex) -> 获取符合条件的MethodInterceptor -> invoke()

Around Before

getAdvisors

LazySingletonAspectInstanceFactoryDecorator

CglibMethodInvocationproceed()

AfterThrowingtry{    mi.proceed()} catch{   invokeAdviceMethod()}有异常时继续调用异常方法没异常向上执行

AbstractAspectAdviceinvokeAdviceMethod

AnnotationAspectJAnnotationTypeargumentNamespointcutExpression

AbstractAutoProxyCreatorpostProcessBeforeInstantiation

CglibAopProxyAdvisedSupport advisedAdvisedDispatcher（AdvisedSupport） advisedDispatcher

IOC容器

先跳过

ReflectiveAspectJAdvisorFactory

Advisor

ProxyCreatorSupportaopProxyFactory

CglibAopProxy

StaticDispatchertargetClass

@Pointcut@Around@Before@After@AfterReturning@AfterThrowing

CglibMethodInvocation

Bean Factory

interceptorList

BeanPostProcessor

ExposeInvocationInterceptor设置ReflectiveMethodInvocation到ThreadLocal

AspectJAroundAdvice

AfterReturningmi.proceed()invokeAdviceMethod()return retVal处理AfterReturning方法并返回结果

MethodBeforeAdviceInterceptor

六

AbstractAutoProxyCreatorpostProcessAfterInitialization

DefaultAdvisorChainFactorygetInterceptorsAndDynamicInterceptionAdvice

beanNames

@EnableAspectJAutoProxy

2

Advice instantiatedAdvice = AspectJAroundAdviceAspectJMethodBeforeAdviceAspectJAfterAdviceAspectJAfterReturningAdviceAspectJAfterThrowingAdvice

getAdvicesAndAdvisorsForBean

DefaultAopProxyFactorycreateAopProxy

BeanFactoryPostProcessor

BeanFactoryAspectInstanceFactory

二

5

代理类

四

MethodInterceptor

DynamicAdvisedInterceptorAdvisedSupport advised

AnnotationAwareAspectAutoProxyCreatorfindCandidateAdvisors

AfterReturning

AspectJAfterThrowingAdvice

findEligibleAdvisors

InterceptorAndDynamicMethodMatcher列表

beanPostProcessors

beanClass -> methods

ExposeInvocationInterceptor

++currentInterceptorIndexmin：= -1max：=  interceptorList.size - 1

methodCache初始化后缓存起来

MethodMatcher

AspectJAnnotation

AspectAfterReturningAdvice

JdkDynamicAopProxy

拦截器列表数据来源

exist

BeanNameBeanFactory

Aftertry{    mi.proceed()} finally{   invokeAdviceMethod()}处理After方法

AfterThrowing

Aware

处理返回值

BeanInstance

BeanPostProcessor - after

Around After

AspectMetadata

聚合

DynamicAdvisedInterceptor

callback[]

AbstractAspectJAdvisorFactory

AdvisedSupportadvisorChainFactory

BeanDefinition

BeanNameBeanClassTruePointCutAjType(BeanClass)

递归返回

BeanPostProcessor - before

ReflectiveMethodInvocation代理类目标类目标对象目标方法方法参数interceptors

MethodInterceptorinvoke()

1

getProxy

beanName -> internalAutoProxyCreator

AspectJMethodBeforeAdvice

List<InterceptorAndDynamicMethodMatcher> interceptorList.get(++currentInterceptorIndex)

三

通知列表额外增加一个ExposeInvocationInterceptor.ADVISOR内部维护了一个ThreadLocal用来维护当前MethodInvocation

一

AnnotationAwareAspectJAutoProxyCreator

0

PopulateBean

目标方法

3

InstantiationModelAwarePointcutAdvisorImpl

查找携带@Aspect的bean

AopUtils.findAdvisorsThatCanApply从通知列表中获取可以处理目标类的通知

4

MethodMatchermatches()

createProxy

BeanFactoryAspectJAdvisorsBuilderbuildAspectJAdvisors

向容器中注入一个BeanDefinition当bean需要被代理时使用当前类对应的beanPostProcessor

BeanFactoryBeanClassAspectJAnnotation.pointcutExpression

6

AspectAwareAdvisorAutoProxyCreatorshouldSkip

exit

ProxyFactory

find

proceed()

InitializingBean

beanType

AfterReturningAdviceInterceptor

InitMethod