center-monitor-dahuaLog/target/classes/mapper/monitor/dept/SysDeptMapper.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.sooka.sponest.monitor.dept.mapper.SysDeptMapper">

    <resultMap type="SysDept" id="SysDeptResult">
        <id property="deptId" column="dept_id"/>
        <result property="parentId" column="parent_id"/>
        <result property="ancestors" column="ancestors"/>
        <result property="deptName" column="dept_name"/>
    </resultMap>

    <select id="findDeptIdByUserName" parameterType="SysDept" resultMap="SysDeptResult">
        SELECT
            dept.dept_id,
            dept.parent_id,
            dept.ancestors,
            dept.dept_name,
            su.user_name
        FROM
            ${database_system}.sys_user su
                LEFT JOIN ${database_system}.sys_user_dept ud ON ud.user_id = su.user_id
                LEFT JOIN ${database_system}.sys_dept dept ON ud.dept_id = dept.dept_id
        WHERE
            su.del_flag = 0
          AND dept.del_flag = 0
          AND su.user_name = #{userName}
            LIMIT 1
    </select>
</mapper>