获得spring代理对象的原对象

@SuppressWarnings({"unchecked"})
protected <T> T getTargetObject(Object proxy, Class<T> targetClass) throws Exception {
  if (AopUtils.isJdkDynamicProxy(proxy)) {
    return (T) ((Advised)proxy).getTargetSource().getTarget();
  } else {
    return (T) proxy; // expected to be cglib proxy then, which is simply a specialized class
  }
}
public class AopTargetUtils {


    /**
     * 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;
    }


    @SuppressWarnings({"unchecked"})
    protected <T> T getTargetObject(Object proxy, Class<T> targetClass) throws Exception {
        if (AopUtils.isJdkDynamicProxy(proxy)) {
            return (T) ((Advised)proxy).getTargetSource().getTarget();
        } else {
            return (T) proxy; // expected to be cglib proxy then, which is simply a specialized class
        }
    }
}

 

posted @ 2017-09-12 09:52  单曲TI  阅读(2581)  评论(0编辑  收藏  举报