解決Spring JPA 使用@transaction注解時產生CGLIB代理沖突問題
更新時間：2021年08月04日 15:59:29 作者：hikeboy
這篇文章主要介紹了解決Spring JPA 使用@transaction注解時產生CGLIB代理沖突問題，具有很好的參考價值，希望對大家有所幫助。如有錯誤或未考慮完全的地方，望不吝賜教
Spring JPA 使用@transaction注解時產生CGLIB代理沖突
在使用JPA進行數據庫的刪除操作時需要使用@Transactional注解來支持事物：
@Modifying
@Transactional
@Query(" delete from FollowerInfo " +
" where crmAuth = :crmAuth and investUserId = :invUserId")
void deleteByCrmAuthAndInvUserId(@Param("crmAuth") String crmAuth, @Param("invUserId") Long invUserId);
但是，在添加了如上方法后，測試服務啟動失敗。
查看日志報錯如下：
Caused by: java.lang.IllegalArgumentException: Cannot subclass final class class com.sun.proxy.$Proxy52 at org.springframework.cglib.proxy.Enhancer.generateClass(Enhancer.java:446) at org.springframework.cglib.transform.TransformingClassGenerator.generateClass(TransformingClassGenerator.java:33) at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216) at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:377) at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:317) at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:57) at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:202) ... 38 more [2017-02-09 10:56:33 ERROR] [localhost-startStop-1] (org.springframework.web.context.ContextLoader:331) - Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'adviserCommFollowerServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.ounersc.ic.adviser.repository.community.AdviserCommFollowerRepository com.ounersc.ic.adviser.service.impl.AdviserCommFollowerServiceImpl.adviserCommFollowerRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'adviserCommFollowerRepository': Post-processing of FactoryBean's singleton object failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class [class com.sun.proxy.$Proxy52]: Common causes of this problem include using a final class or a non-visible class; nested exception is java.lang.IllegalArgumentException: Cannot subclass final class class com.sun.proxy.$Proxy52 at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1204) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:725) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4738) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5181) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.ounersc.ic.adviser.repository.community.AdviserCommFollowerRepository com.ounersc.ic.adviser.service.impl.AdviserCommFollowerServiceImpl.adviserCommFollowerRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'adviserCommFollowerRepository': Post-processing of FactoryBean's singleton object failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class [class com.sun.proxy.$Proxy52]: Common causes of this problem include using a final class or a non-visible class; nested exception is java.lang.IllegalArgumentException: Cannot subclass final class class com.sun.proxy.$Proxy52 at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:555) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ... 22 more Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'adviserCommFollowerRepository': Post-processing of FactoryBean's singleton object failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class [class com.sun.proxy.$Proxy52]: Common causes of this problem include using a final class or a non-visible class; nested exception is java.lang.IllegalArgumentException: Cannot subclass final class class com.sun.proxy.$Proxy52 at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:116) at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1512) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:313) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1081) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1006) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:904) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:527) ... 24 more Caused by: org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class [class com.sun.proxy.$Proxy52]: Common causes of this problem include using a final class or a non-visible class; nested exception is java.lang.IllegalArgumentException: Cannot subclass final class class com.sun.proxy.$Proxy52 at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:212) at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:109) at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:445) at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:331) at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:291) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:422) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.postProcessObjectFromFactoryBean(AbstractAutowireCapableBeanFactory.java:1713) at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:113) ... 31 more Caused by: java.lang.IllegalArgumentException: Cannot subclass final class class com.sun.proxy.$Proxy52 at org.springframework.cglib.proxy.Enhancer.generateClass(Enhancer.java:446) at org.springframework.cglib.transform.TransformingClassGenerator.generateClass(TransformingClassGenerator.java:33) at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216) at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:377) at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:317) at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:57) at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:202) ... 38 more 09-Feb-2017 10:56:33.145 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file 09-Feb-2017 10:56:33.145 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors
org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class [class com.sun.proxy.$Proxy52]: Common causes of this problem include using a final class or a non-visible class
對于此異常，這篇帖子中講到了產生該異常的原因，但是未給出解決辦法。
http://stackoverflow.com/questions/20063320/springmvc-proxy-issue
簡單來說，原因主要是代理沖突：Spring 早期的版本，要用com.sun.proxy的代理 ，而 jpa如果加了@transaction 注解后 需要用CGLIB的代理
因此產生了沖突
解決辦法：
Spring 已經在高版本中修復了該問題，把Spring從4.0升級到4.2.5后，問題解決：
在pom.xml加入：
<properties>
<spring.framework.version>4.2.5.RELEASE</spring.framework.version>
</properties>
Spring 啟用CGLIB解決事物代理失敗
問題描述：
接口A提供公用的CRUD 操作，抽象類B實現接口A，接口C提供各模型特有的相關數據庫操作。
類D繼承抽象類B實現接口C如果使用JDK動態(tài)代理，Spring會將類D向上轉型為接口C，那么在使用中必須注入接口A。
如果注入類D的類型。會報錯說代理類型XX無法轉換為類D的類型。
解決辦法如下：
<bean id="transactionManagerCMS" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="mySessionFactory" /> <property name="dataSource" ref="dataSourceCMS" /> </bean> <!-- the transactional advice (what 'happens'; see the <aop:advisor/> bean below) --> <tx:advice id="txAdvice" transaction-manager="transactionManagerCMS"> <!-- the transactional semantics... --> <tx:attributes> <tx:method name="*" /> </tx:attributes> </tx:advice> <!-- ensure that the above transactional advice runs for any execution of an operation defined by the FooService interface --> <aop:config proxy-target-class="true"> <aop:pointcut id="fooServiceOperation" expression="execution(* com.harvest.smartHotels.info.dao.serviceContent.interfaces.*.*(..))" /> <aop:advisor advice-ref="txAdvice" pointcut-ref="fooServiceOperation" /> </aop:config>
動態(tài)代理使用CGLIB，這樣注入類型就可以使類D。
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