CinemaDemo/target/classes/com/example/cinema/data/HallMapper.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.example.cinema.data.HallMapper">
    <select id="selectAllHall" resultMap="Hall">
        select * from hall
    </select>

    <resultMap id="Hall" type="com.example.cinema.vo.HallVO">
    </resultMap>

</mapper>