lanan-system/dl-module-knowledge/src/main/resources/mapper/TTrainTeacherMapper.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="cn.iocoder.yudao.module.knowledge.mapper.TTrainTeacherMapper">

    <resultMap type="cn.iocoder.yudao.module.knowledge.entity.TTrainTeacher" id="tTrainTeacherMap">
            <result property="teacherName" column="teacher_name"/>
            <result property="professional" column="professional"/>
            <result property="educationalBackground" column="educational_background"/>
    </resultMap>

    <!-- 用于select查询公用抽取的列 -->
    <sql id="columns">
        teacher_name,professional,educational_background
    </sql>
    <select id="findList" resultMap="tTrainTeacherMap">
        select
        <include refid="columns"/>
        from t_train_teacher
        <where>
                    <if test="teacherName != null and teacherName != ''">
                            teacher_name = #{teacherName}
                    </if>
                    <if test="professional != null and professional != ''">
                            professional = #{professional}
                    </if>
                    <if test="educationalBackground != null and educationalBackground != ''">
                            educational_background = #{educationalBackground}
                    </if>
        </where>
    </select>

    <select id="findOneByName" resultType="cn.iocoder.yudao.module.knowledge.entity.TTrainTeacher">
        select *
        from t_train_teacher
        <where>
            <if test="teacherName != null and teacherName != ''">
                teacher_name = #{teacherName}
            </if>
        </where>
    </select>

</mapper>