know_sub/know_sub_model/src/main/resources/mapper/SystemDeptMapper.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.supervision.knowsub.mapper.SystemDeptMapper">

    <resultMap id="BaseResultMap" type="com.supervision.knowsub.model.SystemDept">
            <id property="id" column="id" jdbcType="VARCHAR"/>
            <result property="deptName" column="dept_name" jdbcType="VARCHAR"/>
            <result property="deptCode" column="dept_code" jdbcType="VARCHAR"/>
            <result property="parentDeptId" column="parent_dept_id" jdbcType="VARCHAR"/>
            <result property="remark" column="remark" jdbcType="VARCHAR"/>
            <result property="createUserId" column="create_user_id" jdbcType="VARCHAR"/>
            <result property="createTime" column="create_time" jdbcType="TIMESTAMP"/>
            <result property="updateUserId" column="update_user_id" jdbcType="VARCHAR"/>
            <result property="updateTime" column="update_time" jdbcType="TIMESTAMP"/>
    </resultMap>

    <sql id="Base_Column_List">
        id,dept_name,dept_code,parent_dept_id,
        remark,create_user_id,create_time,
        update_user_id,update_time
    </sql>


    <select id="pageListDept" resultType="com.supervision.knowsub.vo.dept.DeptInfoResVo">
        select t1.id             as id,
               t1.dept_code      as deptCode,
               t1.dept_name      as deptName,
               t1.parent_dept_id as parentDeptId,
               t2.dept_name      as parentDeptName
        from ks_system_dept t1
                 left join ks_system_dept t2 on t1.parent_dept_id = t2.id
        where 1=1
          <if test="deptName != null and deptName != ''">
            and t1.dept_name like concat('%',#{deptName},'%')
          </if>
          <if test="deptCode != null and deptCode != ''">
            and t1.dept_code = #{deptCode}
          </if>
    </select>
</mapper>