cglib Proxy 实现原理(CglibAopProxy#getProxy)

1. 获取该类的拦截器 Callback[] callbacks = getCallbacks(rootClass);
   1.1 切面相关的拦截器：DynamicAdvisedInterceptor
2. 切面拦截器：DynamicAdvisedInterceptor#intercept
   2.1 interceptorsAndDynamicMethodMatchers属性初始化
   
   
   2.2 interceptorsAndDynamicMethodMatchers属性初始化（判断方法是否进拦截器的关系属性）
   

   AspectJExpressionPointcut的调用栈
   List<Object> chain = this.advised.getInterceptorsAndDynamicInterceptionAdvice(method, targetClass);
   -->DefaultAdvisorChainFactory#getInterceptorsAndDynamicInterceptionAdvice
      -->match = ((IntroductionAwareMethodMatcher) mm).matches(method, actualClass, hasIntroductions);
   

   2.3 AspectJExpressionPointcut#matches（对方法进行过滤匹配）

   创建ShadowMatch
   AspectJExpressionPointcut#getShadowMatch
   -->PointcutExpressionImpl#matchesMethodExecution
      -->ShadowMatchImpl sm = this.getShadowMatch(s);
    1. FuzzyBoolean match = this.pointcut.match(forShadow);（详细分析见：https://blog.csdn.net/quyixiao/article/details/109343482）
       -->Pointcut#match
          -->ret = this.matchInternal(shadow);//KindedPointcut#matchInternal
             -->-->SignaturePattern#matches
        1.1 JoinPointSignatureIterator candidateMatches = joinPointSignature.getJoinPointSignatures(world);
          -->candidateMatches包含接口或者父类中的方法
        1.2 do..while循环匹配（如果都匹配不上返回false）
          -->SignaturePattern#matchesExactlyMethod
             --> this.declaringType.matchesStatically(aMethod.getDeclaringType().resolve(world))//WildTypePattern#matchesExactly
           (1)如果包名和类名匹配不是*，则对第一项进行匹配
           (2) 如果表达式方法参数类型只有一个参数，并且是 .. ,则直接返回 YES
   

3. 代理拦截方法：ReflectiveMethodInvocation#proceed ``` if (this.currentInterceptorIndex == this.interceptorsAndDynamicMethodMatchers.size() - 1) {

        return invokeJoinpoint();
   

   }
4. interceptorsAndDynamicMethodMatchers（见上面分析）拦截器调完后，调用自己本身 ```