spring通过代理类获取原生类

package com.chilly.utils;

import org.springframework.aop.framework.AdvisedSupport;
import org.springframework.aop.framework.AopProxy;
import org.springframework.aop.support.AopUtils;

import java.lang.reflect.Field;

public class AopTargetUtils {


public static Object getTarget(Object obj ){
if(!AopUtils.isAopProxy(obj)){
return obj;
}
try {

//判断是jdk还是cglib代理
if (AopUtils.isJdkDynamicProxy(obj)) {
obj = getJdkDynamicProxyTargetObject(obj);
} else {
obj = getCglibDynamicProxyTargetObject(obj);
}

}catch (Exception e){

}
return obj;

}

private static Object getCglibDynamicProxyTargetObject(Object obj) throws Exception {
Field h = obj.getClass().getDeclaredField("CGLIB$CALLBACK_0");
h.setAccessible(true);

Object dynamicAdvisedInterceptor = h.get(obj);
Field advised = dynamicAdvisedInterceptor.getClass().getDeclaredField("advised");
advised.setAccessible(true);
Object target = ((AdvisedSupport) advised.get(dynamicAdvisedInterceptor)).getTargetSource().getTarget();
return target;
}

private static Object getJdkDynamicProxyTargetObject(Object obj) throws Exception {

Field h = obj.getClass().getSuperclass().getDeclaredField("h");
h.setAccessible(true);

AopProxy aopProxy = (AopProxy)h.get(obj);
Field advised = aopProxy.getClass().getDeclaredField("advised");
advised.setAccessible(true);
Object target = ((AdvisedSupport) advised.get(aopProxy)).getTargetSource().getTarget();
return target;

}
}
posted @ 2021-08-22 17:58  银河系的极光  阅读(816)  评论(0)    收藏  举报