Error creating bean with name 'itemCatController'

Error creating bean with name 'itemCatController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.taotao.service.ItemCatService com.taotao.controller.ItemCatController.itemCatService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.taotao.service.ItemCatService] 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)}

今天，在开发项目的时候，遇到这个问题：Error creating bean with name 'itemCatController': Injection of autowired dependencies failed; 
         后来，检查半天后发现，是在service层，少写了一个@service，改完之后，以上错误不再出现。