import org.springframework.aop.framework.AdvisedSupport;
import org.springframework.aop.framework.AopProxy;
import org.springframework.aop.support.AopUtils;
import java.lang.reflect.Field;
/**
* @author shizi
* @since 2020/10/19 1:45 下午
*/
public class SpringTargetBeanUtils {
/**
* 获取 目标对象
*
* @param proxy 代理对象
*/
public static Object getTarget(Object proxy) throws Exception {
if (AopUtils.isJdkDynamicProxy(proxy)) {
return getJdkDynamicProxyTargetObject(proxy);
} else if(AopUtils.isCglibProxy(proxy)){
return getCglibProxyTargetObject(proxy);
} else {
return 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);
return ((AdvisedSupport)advised.get(dynamicAdvisedInterceptor)).getTargetSource().getTarget();
}
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);
return ((AdvisedSupport) advised.get(aopProxy)).getTargetSource().getTarget();
}
}