读取spring配置文件时,为何总报转换异常,请各位牛人帮忙

Question

我在DAO层建立了ProductMgmtImpl类，在SERVICE层建立了ProductserviceImpl类，然后将其配置到spring中的配置文件中
<!-- service -->
  <bean id="productservice"
class="service.impl.ProductserviceImpl">
<property name="dao"
ref="ProductMgmtDAOImpl">
</property>
</bean> 
然后测试ProductserviceImpl类时（测试代码如下）
ApplicationContext factory = new ClassPathXmlApplicationContext(
"applicationContext.xml");
private ProductserviceImpl Productservice= (ProductserviceImpl) factory.getBean("ProductserviceImpl ");总报如下错误
ClassCastException: Proxy cannot be cast to server.impl.ProductserviceImpl
请问为什么从配置文件中读取ProductserviceImpl类时，不能转换成ProductserviceImpl类呢？
                                                                   非常感谢！

Answer 1

private ProductserviceImpl Productservice= (ProductserviceImpl) factory.getBean("productservice"); 欢迎加入java技术交流群，群号：50701307

Answer 2

配置文件里,我的bean名称就是productservice!

Answer 3

 <bean id="productservice" 
class="service.impl.ProductserviceImpl"> private ProductserviceImpl Productservice= (ProductserviceImpl) factory.getBean("ProductserviceImpl "); 
? <bean id="productservice" 
class="service.impl.ProductserviceImpl"> private ProductserviceImpl Productservice= (ProductserviceImpl) factory.getBean("productservice");