java.lang.IllegalArgumentException: Cannot convert value of type [$Proxy7 implem

原文出处：http://zhouhaitao.iteye.com/blog/852225

java.lang.IllegalArgumentException: Cannot convert value of type [$Proxy7 implementingcom.rs.common.core.service.SearchCriteria,org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised]
to required type [pack.java.jsf.service.RequisitionBillCriteria] for property 'requisitionBillCriteria': no matching editors or conversion strategy found

org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:231)

org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:138)

org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:386)

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1289)

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1250)

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)

java.security.AccessController.doPrivileged(Native Method)

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)

org.springframework.beans.factory.support.AbstractBeanFactory$2.getObject(AbstractBeanFactory.java:302)

org.springframework.web.context.request.AbstractRequestAttributesScope.get(AbstractRequestAttributesScope.java:43)

org.springframework.web.context.request.SessionScope.get(SessionScope.java:90)

org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)

org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)

org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)

org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:880)

org.springframework.web.jsf.DelegatingVariableResolver.resolveSpringBean(DelegatingVariableResolver.java:138)

org.springframework.web.jsf.DelegatingVariableResolver.resolveVariable(DelegatingVariableResolver.java:111)

com.sun.faces.el.VariableResolverChainWrapper.getValue(VariableResolverChainWrapper.java:107)

javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)

 

如果在Spring配置文件中配置的事务是通过AOP标签实现的，那就在中增加proxy-target-class=”true”属性。就异常显示的信息可以看到，Spring在转换时，主要是将代理类转换成接口，反而不能转换成实际类。

 

如果是通过bean方式增加事务控制，则在配置文件中增加如下代码:(注意红色部分)

解决方案:

 

 

Xml代码  


<bean id="transaction" class="org.springframework.orm.hibernate3.HibernateTransactionManager">  

        <property name="sessionFactory" ref="sessionFactory" />  

     </bean>  

       

     <tx:advice id="advice" transaction-manager="transaction">  

          <tx:attributes>  

               <tx:method name="add*" propagation="REQUIRED" />  

               <tx:method name="del*" propagation="REQUIRED" />  

               <tx:method name="update*" propagation="REQUIRED" />  

               <tx:method name="save*" propagation="REQUIRED" />  

               <tx:method name="*" propagation="SUPPORTS" read-only="true"/>  

          </tx:attributes>  

     </tx:advice>  

     <!--加入proxy-target-class="true" 即可,默认是false;-->  

     <aop:config proxy-target-class="true">  

      <aop:pointcut id="cut" expression="execution(* pack.java.jsf.service.*.*(..))" />  

      <aop:advisor advice-ref="advice" pointcut-ref="cut" />  

    </aop:config>  

  

即可.重启服务器..错误即可解决..