yvjia/src/main/java/com/backendsys/mapper/System/SysCityMapper.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.backendsys.mapper.System.SysCityMapper">-->

<!--    <select id="querySysCity" resultType="java.util.LinkedHashMap">-->
<!--        SELECT code, name, parent_code, full_name-->
<!--        FROM sys_city-->
<!--        <where>-->
<!--            <if test="code != null and code != ''">-->
<!--                AND code = #{code}-->
<!--            </if>-->
<!--            <if test="parent_code != null and parent_code != ''">-->
<!--                AND parent_code = #{parent_code}-->
<!--            </if>-->
<!--        </where>-->
<!--    </select>-->

<!--</mapper>-->