CIS/src/main/resources/mapper/CityAdminCaseImageMapper.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.welampiot.dao.CityAdminCaseImageDao">
    
    <select id="getCityAdminCaseImageByCaseId" resultType="CityAdminCaseImageDTO">
        select c.image,c.createTime,u.name,u.username
        from city_admin_case_image c
        left join user u on u.id = c.user_id
        where c.case_id = #{caseId}
    </select>

</mapper>