获得spring代理对象的原对象
看代码吧：
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@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 } } |
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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$CALLBACK_0" ); h.setAccessible( true ); Object dynamicAdvisedInterceptor = h.get(proxy); Field advised = dynamicAdvisedInterceptor.getClass().getDeclaredField( "advised" ); advised.setAccessible( true ); Object target = ((AdvisedSupport)advised.get(dynamicAdvisedInterceptor)).getTargetSource().getTarget(); return target; } private static Object getJdkDynamicProxyTargetObject(Object proxy) throws Exception { Field h = proxy.getClass().getSuperclass().getDeclaredField( "h" ); h.setAccessible( true ); AopProxy aopProxy = (AopProxy) h.get(proxy); Field advised = aopProxy.getClass().getDeclaredField( "advised" ); advised.setAccessible( true ); Object target = ((AdvisedSupport)advised.get(aopProxy)).getTargetSource().getTarget(); return target; } @SuppressWarnings ({ "unchecked" }) protected <T> T getTargetObject(Object proxy, Class<T> targetClass) throws Exception { if (AopUtils.isJdkDynamicProxy(proxy)) { return (T) ((Advised)proxy).getTargetSource().getTarget(); } else { return (T) proxy; // expected to be cglib proxy then, which is simply a specialized class } } } |
从Aop代理的对象中获取源对象
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/** * 从AOP代理对象中获得原对象的类型 * @param proxyObject * @return */ @SuppressWarnings ( "unchecked" ) public static final <T> T getBeanFromProxy(T proxyObject) { Class<?> clazz = proxyObject.getClass(); if (clazz.getName().startsWith( "$Proxy" )) { try { clazz = clazz.getSuperclass(); Field hField = clazz.getDeclaredField( "h" ); hField.setAccessible( true ); Object hObject = hField.get(proxyObject);
Class<?> dynamicProxyClass = hObject.getClass(); Field advisedField = dynamicProxyClass.getDeclaredField( "advised" ); advisedField.setAccessible( true ); Object advisedObject = advisedField.get(hObject);
Class<?> advisedSupportClass = advisedObject.getClass().getSuperclass().getSuperclass(); Field targetField = advisedSupportClass.getDeclaredField( "targetSource" ); targetField.setAccessible( true ); Object targetObject = targetField.get(advisedObject);
Class<?> targetSourceClass = targetObject.getClass(); Field targetClassField = targetSourceClass.getDeclaredField( "target" ); targetClassField.setAccessible( true ); return (T) targetClassField.get(targetObject); } catch (SecurityException e) { e.printStackTrace(); } catch (NoSuchFieldException e) { e.printStackTrace(); } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } } return null ; } |
以上为个人经验，希望能给大家一个参考，也希望大家多多支持。
原文链接：https://HdhCmsTestcnblogs测试数据/nnavvi/p/7508570.html
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