spring aop实现的过程

悠悠 2022-07-15 06:13 59阅读 0赞

之前看过，再分析一次spring aop过程  
org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory  
org.springframework.beans.factory.support.DefaultListableBeanFactory  
  
  
org.springframework.aop.framework.JdkDynamicAopProxy  
org.springframework.aop.framework.CglibAopProxy  
这两个都继承了AopProxy  
org.springframework.aop.framework.DefaultAopProxyFactory 代理上面两个AopProxy  
  
注意了： 此奶为spring容器初始化正在实例会单例bean的栈路径；  
  
2016-06-02 13:12:26  
"main" - Thread  t@1  
   java.lang.Thread.State: RUNNABLE  
at org.springframework.aop.framework.JdkDynamicAopProxy.<init>(JdkDynamicAopProxy.java:105)  
at org.springframework.aop.framework.DefaultAopProxyFactory.createAopProxy(DefaultAopProxyFactory.java:65)  
at org.springframework.aop.framework.ProxyCreatorSupport.createAopProxy(ProxyCreatorSupport.java:105)  
\- locked <3941f799> (a org.springframework.aop.framework.ProxyFactory)  
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:111)  
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:477)  
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:362)  
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:322)  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:409)  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1488)  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)  
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)  
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)  
\- locked <19e67b2d> (a java.util.concurrent.ConcurrentHashMap)  
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)  
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)  
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)  
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)  
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)  
\- locked <6aa0d4a3> (a java.lang.Object)  
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)  
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)  
at com.springapp.demo.SpringContainer.main(SpringContainer.java:29)  
  
   Locked ownable synchronizers:  
\- None  
  
  
spring循环引用判断处：  
"main" - Thread  t@1  
   java.lang.Thread.State: RUNNABLE  
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:255)  
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)  
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)  
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)  
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)  
\- locked <101dd23e> (a java.lang.Object)  
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)  
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)  
at com.springapp.demo.SpringContainer.main(SpringContainer.java:29)  
  
   Locked ownable synchronizers:  
\- None  
  
  
判断是否依懒其他的引用：  
"main" - Thread  t@1  
   java.lang.Thread.State: RUNNABLE  
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)  
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)  
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)  
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)  
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)  
\- locked <101dd23e> (a java.lang.Object)  
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)  
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)  
at com.springapp.demo.SpringContainer.main(SpringContainer.java:29)  
  
   Locked ownable synchronizers:  
\- None  
  
  
  
查看所有的beanpostprocessor:  
\[org.springframework.context.support.ApplicationContextAwareProcessor@5bc8ab1e, //初始化AccessControlContext，与代码权限相关的东西相关  
org.springframework.context.support.AbstractApplicationContext$BeanPostProcessorChecker@535a6da5, //打印初始化bean日志用  
org.springframework.context.annotation.ConfigurationClassPostProcessor$ImportAwareBeanPostProcessor@5d93302b, //处理import相关用  
proxyTargetClass=false; optimize=false; opaque=false; exposeProxy=false; frozen=false,  
// 这个是：class org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator，用于初始化自动切面注入的构造器  
//AnnotationAwareAspectJAutoProxyCreator这个类中 ， org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.isInfrastructureClass(Class)此处在（postProcessBeforeInstantiation阶段）过滤所有bean,哪一些是具备AOP拦接功能的bean,并把它们记录下来(记录在advisedBeans)，以备在后面的postProcessAfterInstantiation阶段决定是否进行创建ProxyBean的替换  
com.springapp.demo.aware.SimpleBeanPostProcessor@1242bced,   
org.springframework.context.annotation.CommonAnnotationBeanPostProcessor@b47af37, //用于支持JSR-250标注用  
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor@70bb19ab, //用于自动注入用（包括JSR-330），识别Autowired.class & Value.class  
org.springframework.beans.factory.annotation.RequiredAnnotationBeanPostProcessor@f4049aa, //自动注入  
org.springframework.context.support.AbstractApplicationContext$ApplicationListenerDetector@55d49663 //确定该bean是否增监听器ApplicationListener  
\]  
  
"main" - Thread  t@1  
   java.lang.Thread.State: RUNNABLE  
at org.springframework.aop.framework.JdkDynamicAopProxy.<init>(JdkDynamicAopProxy.java:102)  
at org.springframework.aop.framework.DefaultAopProxyFactory.createAopProxy(DefaultAopProxyFactory.java:65)  
at org.springframework.aop.framework.ProxyCreatorSupport.createAopProxy(ProxyCreatorSupport.java:105)  
//org.springframework.aop.framework.ProxyCreatorSupport构造函数：  
//public ProxyCreatorSupport() \{   
// this.aopProxyFactory = new DefaultAopProxyFactory();，此出已经出来了，使用了上面的两种代理的构造器；  
//\}  
//  
\- locked <2b90a58b> (a org.springframework.aop.framework.ProxyFactory)  
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:111)  
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:477)  
//前面两句代码是判断是否需要代理，if (specificInterceptors != DO\_NOT\_PROXY) \{   
//org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(Class<?>, String, Object\[\], TargetSource)/此方法中内容为重点创建PROXY///代码中  
//ProxyFactory proxyFactory = new ProxyFactory();  
//并且传递了proxyConfig  
//proxyFactory.copyFrom(this);  
//此  
  
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:362) //打包装饰成代理  
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:322)  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:409)  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1488)  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)  
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)  
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)  
\- locked <25645f05> (a java.util.concurrent.ConcurrentHashMap)  
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)  
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)  
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)  
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)  
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)  
\- locked <101dd23e> (a java.lang.Object)  
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)  
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)  
at com.springapp.demo.SpringContainer.main(SpringContainer.java:29)  
  
   Locked ownable synchronizers:  
\- None  
  
  
  
  
//SPRING BEAN 的属性填充代码栈如下  
  
2016-06-02 15:17:10  
  
"main" - Thread  t@1  
   java.lang.Thread.State: RUNNABLE  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1116)  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)  
//代码如下：先填充，再暴露出复合物实的bean exposedObject  
//try \{   
populateBean(beanName, mbd, instanceWrapper);  
if (exposedObject != null) \{   
exposedObject = initializeBean(beanName, exposedObject, mbd);  
\}  
//  
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)  
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)  
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)  
\- locked <3c86225c> (a java.util.concurrent.ConcurrentHashMap)  
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)  
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)  
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:741)  
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)  
\- locked <a39e50f> (a java.lang.Object)  
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)  
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)  
at com.springapp.demo.SpringContainer.main(SpringContainer.java:29)  
  
   Locked ownable synchronizers:

\- None

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