mybatis的dao层xml

<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- 该配置文件提供sql语句和DeptDaoMapper类进行绑定 -->
<mapper namespace="com.xasxt.tmanager.app.dao.CourseDaoMapper">

<select >

</select>
</mapper>