获取JDK动态代理/CGLIB代理对象代理的目标对象

公司基础框架是通过反射来获取controller层的，会丢失aop的东西，修改框架拿到被代理的对象就行了。

    public static Object getTarget(Object proxy) {
        if (!AopUtils.isAopProxy(proxy)) {
            return proxy;// 不是代理对象
        }
        if (AopUtils.isJdkDynamicProxy(proxy)) {
            return getJdkDynamicProxyTargetObject(proxy);
        } else { // cglib
            return getCglibProxyTargetObject(proxy);
        }
    }

private static Object getCglibProxyTargetObject(Object proxy) {
        try{
            Field h = proxy.getClass().getDeclaredField("CGLIB$CALLBACK_0");
            h.setAccessible(true);
            Object dynamicAdvisedInterceptor = h.get(proxy);
            Field advised = dynamicAdvisedInterceptor.getClass().getDeclaredField("advised");
            advised.setAccessible(true);
            Object target = ((AdvisedSupport) advised.get(dynamicAdvisedInterceptor)).getTargetSource().getTarget();
            return target;
        } catch(Exception e){
            e.printStackTrace();
            return null;
        }
    }
    

    private static Object getJdkDynamicProxyTargetObject(Object proxy) {
        try{
            Field h = proxy.getClass().getSuperclass().getDeclaredField("h");
            h.setAccessible(true);
            AopProxy aopProxy = (AopProxy) h.get(proxy);
            Field advised = aopProxy.getClass().getDeclaredField("advised");
            advised.setAccessible(true);
            Object target = ((AdvisedSupport) advised.get(aopProxy)).getTargetSource().getTarget();
            return target;
        } catch(Exception e){
            e.printStackTrace();
            return null;
        }
    }

学习自：http://jinnianshilongnian.iteye.com/blog/1613222
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