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  • 关于Spring动态代理

    默认情况下,spring会按照如下规则生成代理:

    当类有实现接口,spring会生成JdkDynamicAopProxy代理

    当类没有实现接口,spring会生成CglibAopProxy代理

    如果想强制spring生成CglibAopProxy代理,可以<aop:config proxy-target-class="true"> </aop:config>

    当需要使用CGLIB代理和@AspectJ自动代理支持,请按照如下的方式设置 <aop:aspectj-autoproxy> 的 proxy-target-class 属性:<aop:aspectj-autoproxy proxy-target-class="true"/>

    ---------------------------------------------------------------------当通过JdkDynamicAopProxy实现代理的时候,如何获取到目标对象-------------------------------------------------------------

    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;
    }

    --------------------------------------------------------------------当通过CglibAopProxy实现代理的时候,如何获取目标对象---------------------------------------------------------------------------

    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;
    }

    摘自:

    http://www.cnblogs.com/yangyquin/p/5582911.html

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  • 原文地址:https://www.cnblogs.com/man-li/p/6863775.html
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