cn.stylefeng.roses.kernel.scanner.modular.util.AopTargetUtils Maven / Gradle / Ivy
/**
* Copyright 2018-2020 stylefeng & fengshuonan ([email protected])
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cn.stylefeng.roses.kernel.scanner.modular.util;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.aop.framework.AdvisedSupport;
import org.springframework.aop.framework.AopProxy;
import org.springframework.aop.support.AopUtils;
import java.lang.reflect.Field;
/**
* 获取代理原始对象的工具
*
* @author fengshuonan
* @Date 2018/2/21 17:09
*/
public class AopTargetUtils {
private static Logger logger = LoggerFactory.getLogger(AopTargetUtils.class);
public static Object getTarget(Object proxy) {
if (!AopUtils.isAopProxy(proxy)) {
return proxy;//不是代理对象
}
try {
if (AopUtils.isJdkDynamicProxy(proxy)) {
return getJdkDynamicProxyTargetObject(proxy);
} else {
return getCglibProxyTargetObject(proxy);
}
} catch (Exception e) {
logger.error("获取代理对象异常", e);
return null;
}
}
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();
}
}