获取SPRING 代理对象的真实实例,可以反射私有方法,便于测试

/**
* 获取 目标对象
* @param proxy 代理对象
* @return
* @throws Exception
*/
public static Object getTarget(Object proxy) throws Exception {
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) throws Exception {
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;
} 

private static Object getJdkDynamicProxyTargetObject(Object proxy) throws Exception {
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;
}