Spring AOP源码详解

Spring两大强大的特性就是IOC以及AOP，我们知道Spring实现AOP的过程是在SpringBean后置处理器中处理的，在Bean初始化的时候执行，我们接下来来详细看看源码是怎么做的

 生成代理对象的方法都会委托到InvocationHandler.Proxy执行，我们首先来看JdkDynamicAopProxy中invoke方法的实现

public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        Object oldProxy = null;
        boolean setProxyContext = false;
        TargetSource targetSource = this.advised.targetSource;
        Object target = null;

        Class var8;
        try {
            if (!this.equalsDefined && AopUtils.isEqualsMethod(method)) {
                Boolean var18 = this.equals(args[0]);
                return var18;
            }

            if (!this.hashCodeDefined && AopUtils.isHashCodeMethod(method)) {
                Integer var17 = this.hashCode();
                return var17;
            }

            if (method.getDeclaringClass() != DecoratingProxy.class) {
                Object retVal;
                if (!this.advised.opaque && method.getDeclaringClass().isInterface() && method.getDeclaringClass().isAssignableFrom(Advised.class)) {
                    retVal = AopUtils.invokeJoinpointUsingReflection(this.advised, method, args);
                    return retVal;
                }

                if (this.advised.exposeProxy) {
                    oldProxy = AopContext.setCurrentProxy(proxy);
                    setProxyContext = true;
                }

                target = targetSource.getTarget();
                Class targetClass = target != null ? target.getClass() : null;
                List