wechatbak/wjj-core/src/main/resources/mybatis/DictionaryMapper.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.demo.wjj.mapper.DictionaryMapper">

    <!--查询数据字典-->
    <select id="selectDictionaryList" resultType="com.demo.wjj.po.Dictionary">
        SELECT d.id, d.name, d.parent_id parentId
        FROM tb_device_list d
        WHERE d.can_enable = 1
        <if test="type != null and type != ''">
            AND d.level = #{type}
        </if>
    </select>
</mapper>