Spring的AOP实现使用的JDK的动态代理必须使用接口

标签：spring   proxy   aop   cglib   interface   

       今天，在项目中遇到一个问题，情况是这样的：在一个项目中，我配置了一个用以处理任务的工厂类，然后将这个工厂类注入到其他的service类中进行使用。在Spring中的配置如下：

<bean id="linkingDetectService" class="cn.vobile.service.linkingdetect.LinkingDetectServiceImpl">
        <property name="taskPriority" value="normal" />
        <property name="commonTaskService" ref="commonTaskService" />
        <property name="gson" ref="gson" />
    </bean>
    
    <bean id="reclaimMatchSubscriptionService" class="cn.vobile.service.matchsubscription.reclaim.ReclaimMatchSubscriptionServiceImpl">
        <property name="taskPriority" value="normal" />
        <property name="matchSubscriptionService" ref="matchSubscriptionService"/>
        <property name="gson" ref="gson" />
        <property name="matchedVideoService" ref="matchedVideoCommonService" />
        <property name="transactionTemplate" ref="masterTransactionTemplate" />
    </bean>
    
    <bean id="commonTaskFactory" class="cn.vobile.service.commontask.CommonTaskFactory">
        <property name="serviceMap">
            <map>
                <entry key="linkingDetect"><ref local="linkingDetectService"/></entry>
                <entry key="reclaimMatchSubscription"><ref local="reclaimMatchSubscriptionService"/></entry>
            </map>
        </property>
    </bean>

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'matchedVideoService' defined in ServletContext resource [/WEB-INF/classes/applicationServiceContext.xml]: Cannot resolve reference to bean 'commonTaskFactory' while setting bean property 'commonTaskFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'commonTaskFactory' defined in ServletContext resource [/WEB-INF/classes/applicationServiceContext.xml]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Cannot proxy target class because CGLIB2 is not available. Add CGLIB to the class path or specify proxy interfaces.

<bean id="txManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>
	
	<bean id="masterTransactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
        <property name="transactionManager" ref="txManager" />
    </bean>

	<tx:advice id="txAdvice" transaction-manager="txManager">
		<tx:attributes>
			<tx:method name="get*" propagation="SUPPORTS" read-only="true" timeout="20"/>
			<tx:method name="is*" propagation="SUPPORTS" read-only="true" timeout="20"/>
			<tx:method name="has*" propagation="SUPPORTS" read-only="true" timeout="20"/>
			<tx:method name="exist*" propagation="SUPPORTS" read-only="true" timeout="20"/>
			<tx:method name="*" />
		</tx:attributes>
	</tx:advice>

	<aop:config>
		<aop:pointcut id="vtServiceTransaction"
			expression="execution(* cn.vobile.service.*.*.*(..))" />
		<aop:advisor advice-ref="txAdvice"
			pointcut-ref="vtServiceTransaction" />
	</aop:config>

解决方案一：引入CGLIB的jar包。

解决方案二：把这里的***Factory类从事务层挪出去，这样就不会调用JDK的动态代理了。

Spring的AOP实现使用的JDK的动态代理必须使用接口

标签：spring   proxy   aop   cglib   interface   

原文地址：http://blog.csdn.net/thjnemo/article/details/42170957