上下文中的多个包:组件扫描，弹簧配置 [英] multiple packages in context:component-scan, spring config

问题描述

如何在 context:component-scan 元素的 spring-servlet.xml 文件中添加多个包?

How can I add multiple packages in spring-servlet.xml file in context:component-scan element?

我试过了

<context:component-scan base-package="z.y.z.service" base-package="x.y.z.controller" />

和

<context:component-scan base-package="x.y.z.service, x.y.z.controller" />

和

<context:component-scan base-package="x.y.z.service" />
<context:component-scan base-package="x.y.z.controller" />

但出现错误:

org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [x.y.z.dao.daoservice.LoginDAO] found for dependency:

推荐答案

以下做法是正确的:

<context:component-scan base-package="x.y.z.service, x.y.z.controller" /> 

注意，错误提示的是x.y.z.dao.daoservice.LoginDAO，它不在上面提到的包中，可能是你忘记添加了:

Note that the error complains about x.y.z.dao.daoservice.LoginDAO, which is not in the packages mentioned above, perhaps you forgot to add it:

<context:component-scan base-package="x.y.z.service, x.y.z.controller, x.y.z.dao" /> 

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