protectedObjectinitializeBean(StringbeanName,Objectbean,@NullableRootBeanDefinitionmbd){
    if(System.getSecurityManager()!=null){
        AccessController.doPrivileged((PrivilegedAction<Object>)()->{
            invokeAwareMethods(beanName,bean);
            return null;
        },getAccessControlContext());
    }
    else{
        invokeAwareMethods(beanName,bean);
    }
 
    ObjectwrappedBean=bean;
    if(mbd==null||!mbd.isSynthetic()){
        // 執(zhí)⾏所有的BeanPostProcessor#postProcessBeforeInitialization 初始化之前
的處理器⽅法
        wrappedBean=applyBeanPostProcessorsBeforeInitialization(wrappedBean,beanName);
    }
 
    try{
        // 這⾥就開始執(zhí)⾏afterPropertiesSet（實(shí)現(xiàn)了InitializingBean接⼝）⽅法和
        initMethod
        invokeInitMethods(beanName,wrappedBean,mbd);
    }
    catch(Throwableex){
        thrownewBeanCreationException((mbd!=null?            mbd.getResourceDescription():null),beanName,"Invocationofinitmethodfailed",ex);
    }
    if(mbd==null||!mbd.isSynthetic()){
        // 整個(gè)Bean初始化完成，執(zhí)⾏后置處理器⽅法
        wrappedBean=applyBeanPostProcessorsAfterInitialization(wrappedBean,beanName);
    }
 
    return wrappedBean;
}

AbstractAutowireCapableBeanFactory#applyBeanPostProcessorsAfterInitialization
->AbstractAutoProxyCreator#postProcessAfterInitialization

->AbstractAutoProxyCreator#wrapIfNecessary

->AbstractAutoProxyCreator#createProxy

->proxyFactory.getProxy()