emrais/dblayer-mbg/src/main/resources/mapper/UserMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.lantone.dblayermbg.mapper.UserMapper">

    <select id="getalle" resultType="com.lantone.dblayermbg.entity.User">

        select * from sys_user
    </select>

</mapper>