spring强制cglib代理不起作用？

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spring强制cglib代理不起作用？0

配置了强制使用cglib，但spring还是使用JDK代理service，所有的service都实现了IGenericService接口，而且在有注入bean的地方，会报错：

Cannot convert value of type [$Proxy10 implementing org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised,net.sf.cglib.proxy.Factory,com.xxx.service.IGenericService] to required type [com.xxx.service.impl.UserService] for property 'userService': no matching editors or conversion strategy found

aop的配置：使用的是cglib-nodep-2.1_3.jar

<aop:aspectj-autoproxy proxy-target-class="true"/>

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

<property name="dataSource">
<ref bean="dataSource" />
</property>
</bean>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
       <tx:method name="get*" read-only="true" />
       <tx:method name="find*" read-only="true" />
       <tx:method name="*" rollback-for="Exception" />
</tx:attributes>
</tx:advice>
    <aop:config proxy-target-class="true" >
<aop:pointcut id="serviceMethod"
expression="execution(* com.xxx.service.impl..*Service.*(..))" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="serviceMethod" />
</aop:config>

折腾一天了，不知道问题出在哪里，求指点

问题补充：spring使用版本是3.1.4

问题补充：继承关系：
public class UserService extends GenericServiceImpl<User, Long> {...
父类：
public class GenericServiceImpl<T, ID extends Serializable> implements IGenericService<T,ID>{...
public GenericServiceImpl() {...

问题补充：application.xml里：
<context:component-scan base-package="org.mtm.framework.ssi">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
dispatch-servlet.xml：
<aop:aspectj-autoproxy proxy-target-class="true"/>
<context:component-scan base-package="org.mtm.framework.ssi" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<mvc:annotation-driven/>
项目里一个地方用到了userService：
@Resource
public void setUserService(UserService userService) {
this.userService = userService;
}

问题补充：上面的base-package="org.mtm.framework.ssi"应该是com.xxx,就是和事务包对应的

问题补充：异常信息：
Caused by: org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type '$Proxy10 implementing org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised,net.sf.cglib.proxy.Factory,xxxxx.service.IGenericService' to required type 'xxxx.service.impl.UserService' for property 'userService'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [$Proxy10 implementing org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised,net.sf.cglib.proxy.Factory,xxxxx.service.IGenericService] to required type [xxxxx.service.impl.UserService] for property 'userService': no matching editors or conversion strategy found
at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:485)
at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:516)
at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:510)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1406)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1365)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
... 88 more
Caused by: java.lang.IllegalStateException: Cannot convert value of type [$Proxy10 implementing org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised,net.sf.cglib.proxy.Factory,xxxxx.service.IGenericService] to required type [xxxx.service.impl.UserService] for property 'userService': no matching editors or conversion strategy found
at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:247)
at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:470)
... 94 more