問題描述：：
我現在遇到個棘手的問題,要通過spring託管的service類保存對象,這個類是通過反射拿到的,經過實驗發現這個類只能反射取得sservice實現了接口的方法,而extends類的方法一律不出現,debug後發現這個servie實例被spring替換成jdkdynmicproxy類,而不是原始對象了,,它裏面只有service繼承的接口方法,而沒有extends 過的super class方法,怎麼調用原生對象的方法!!!!!
用託管的spring service類調用getClass().getName()方法,發現輸出都是$proxy43這類東西!!
import java.lang.reflect.Field;
import org.springframework.aop.framework.AdvisedSupport;
import org.springframework.aop.framework.AopProxy;
import org.springframework.aop.support.AopUtils;
/**
* Description: 能獲取JDK動態代理/CGLIB代理對象代理的目標對象。
* All Rights Reserved.
* @version 1.0 2015-6-28 上午9:04:32 by zhangbo01@zuche.com創建
*/
public class AopTargetUtils {
/**
* 獲取 目標對象
* @param proxy 代理對象
* @return
* @throws Exception
*/
public static Object getTarget(Object proxy) throws Exception {
if(!AopUtils.isAopProxy(proxy)) {
return proxy;//不是代理對象
}
if(AopUtils.isJdkDynamicProxy(proxy)) {
return getJdkDynamicProxyTargetObject(proxy);
} else { //cglib
return getCglibProxyTargetObject(proxy);
}
}
private static Object getCglibProxyTargetObject(Object proxy) throws Exception {
Field h = proxy.getClass().getDeclaredField("CGLIB$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;
}
}
文章來源：https://www.cnblogs.com/jgig11/p/5764352.html