bean依赖注入错误：Error creating bean with name 'itemService': Injection of autowired dependencies failed

错误代码（贴的前部分）：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'itemService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.taotao.manage.service.ItemDescService com.taotao.manage.service.ItemService.itemDescService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.taotao.manage.service.ItemDescService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

错误原因：

再service上@Service注解忘记添加了，导致bean找不到ItemDescService。

SSM书写步骤大致如下：

contorller

@RequestMapping(value="item")@Controllerpublic class ItemContorller {@Autowiredprivate ItemService itemService;}

service

@Servicepublic class ItemService extends BaseService<Item>{@Autowiredprivate ItemMapper itemMapper;}

mapper,继承pojo

public interface ItemMapper extends Mapper<Item> {}