记录spring使用JDK动态代理,发生的2次代理问题

【spring】IllegalArgumentException Can not set field to $Proxy 在spring中使用事物或AOP

spring默认使用的是JDK动态代理

当使用spring 的时候spring默认启动的jdk动态代理.当使用spring 的aop切面编程的时候,在去代理一个jdk动态代理以后的类就会发生2次代理的问题:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'diseasesQueryControl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.ccnt.med.abservice.QueryService org.ccnt.med.control.DiseasesQueryControl.queryService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'queryServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.ccnt.med.dao.TbDiseaseDao org.ccnt.med.servimpl.QueryServiceImpl.tbDiseaseDao; nested exception is java.lang.IllegalArgumentException: Can not set org.ccnt.med.dao.TbDiseaseDao field org.ccnt.med.servimpl.QueryServiceImpl.tbDiseaseDao to $Proxy9    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)    at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4791)    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5285)    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)    at java.util.concurrent.FutureTask.run(Unknown Source)    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)    at java.lang.Thread.run(Unknown Source)

使用如下配置可以在spring中使用cgli代理: proxy-target-class=”true”

在spring的配置文件中 配置事务的时候使用<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>如果使用基于Schema的aop则可以如下配置<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>    <!-- 配置事务管理器 -->    <bean        id="transactionManager"        class="org.springframework.orm.hibernate3.HibernateTransactionManager" >        <property name="sessionFactory" >            <ref local="sessionFactory" />        </property>    </bean>    <!-- 配置哪些方法需要哪些事务 -->    <tx:advice        id="txadvice"        transaction-manager="transactionManager" >        <tx:attributes>            <tx:method                name="create*"                propagation="REQUIRED" />            <tx:method                name="delete*"                propagation="REQUIRED" />            <tx:method                name="update*"                propagation="REQUIRED" />            <tx:method name="read*"                read-only="true"                propagation="NOT_SUPPORTED"/>            <tx:method                name="*"                read-only="true" />        </tx:attributes>    </tx:advice>    <!-- pointcut切入点；advice，通知，即被织入的方法 。这儿是AOP-->    <aop:config proxy-target-class="true">        <aop:pointcut            id="managerMethods"            expression="execution (* org.ccnt.med.dao.TbTopicDao.*(..))" />        <aop:pointcut            id="managerMethods"            expression="execution (* org.ccnt.med.dao.TbDisTopicDao.*(..))" />        <aop:advisor            advice-ref="txadvice"            pointcut-ref="managerMethods" />    </aop:config>