dealer_back/pine-admin/target/classes/mapper/base/ProvincesDao.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.pine.admin.modules.base.dao.ProvincesDao">

    <!-- 可根据自己的需求，是否要使用 -->
    <resultMap type="com.pine.admin.modules.base.entity.Provinces" id="provincesMap">
        <result property="id" column="id"/>
        <result property="provinceid" column="provinceid"/>
        <result property="province" column="province"/>
    </resultMap>

    <resultMap id="cities" type="com.pine.admin.modules.base.entity.Provinces" extends="provincesMap">

        <collection property="cities"
                    ofType="com.pine.admin.modules.base.entity.Cities"
                    select="com.pine.admin.modules.base.dao.CitiesDao.queryAllCities"
                    column="{ provinceid = provinceid }"/>
    </resultMap>
    <sql id="Base_Column_List">
                 id,
                     provinceid,
                    province         </sql>
    <!-- 根据Id查询-->
    <select id="selectByPrimaryKey" resultMap="cities" parameterType="java.lang.Integer">
        select
        <include refid="Base_Column_List"/>
        from provinces
        where id = #{id,jdbcType=INTEGER}
    </select>
    <!-- 根据Id删除-->
    <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
		delete from provinces
		where id = #{id,jdbcType=INTEGER}
	</delete>

    <!-- 插入数据-->
    <insert id="insertSelective" parameterType="com.pine.admin.modules.base.entity.Provinces" useGeneratedKeys="true"
            keyProperty="id">
        insert into provinces
        <trim prefix="(" suffix=")" suffixOverrides=",">
            <if test="id != null">id,</if>
            <if test="provinceid != null">provinceid,</if>
            <if test="province != null">province,</if>
        </trim>
        <trim prefix="values (" suffix=")" suffixOverrides=",">
            <if test="id != null">#{id},</if>
            <if test="provinceid != null">#{provinceid},</if>
            <if test="province != null">#{province},</if>
        </trim>
    </insert>

    <!-- 更新数据-->
    <update id="updateByPrimaryKeySelective" parameterType="com.pine.admin.modules.base.entity.Provinces">
        update provinces
        <set>
            <if test="id != null">id = #{id},</if>
            <if test="provinceid != null">provinceid = #{provinceid},</if>
            <if test="province != null">province = #{province},</if>
        </set>
        where id = #{id,jdbcType=INTEGER}
    </update>

    <!-- 分页查询-->
    <select id="queryProvincessByPage" parameterType="java.util.Map"
            resultType="com.pine.admin.modules.base.entity.Provinces">
        select
        <include refid="Base_Column_List"/>
        from provinces
        <where>
            <if test="record.id != null and !&quot;&quot;.equals(record.id)">and id = #{record.id}</if>
            <if test="record.provinceid != null and !&quot;&quot;.equals(record.provinceid)">and provinceid =
                #{record.provinceid}
            </if>
            <if test="record.province != null and !&quot;&quot;.equals(record.province)">and province =
                #{record.province}
            </if>
        </where>
        order by id desc
    </select>

    <!-- 全部查询 -->
    <select id="queryAllProvinces" parameterType="java.util.Map" resultMap="cities">
        select
        <include refid="Base_Column_List"/>
        from provinces
        <where>
            <if test="id != null and !&quot;&quot;.equals(id)">and id = #{id}</if>
            <if test="provinceid != null and !&quot;&quot;.equals(provinceid)">and provinceid = #{provinceid}</if>
            <if test="province != null and !&quot;&quot;.equals(province)">and province = #{province}</if>
        </where>
        order by id asc
    </select>

    <!-- 根据条件查询一个 -->
    <select id="queryProvinces" parameterType="java.util.Map" resultMap="cities">
        select
        <include refid="Base_Column_List"/>
        from provinces
        <where>
            <if test="id != null and !&quot;&quot;.equals(id)">and id = #{id}</if>
            <if test="provinceid != null and !&quot;&quot;.equals(provinceid)">and provinceid = #{provinceid}</if>
            <if test="province != null and !&quot;&quot;.equals(province)">and province = #{province}</if>
        </where>
        LIMIT 1
    </select>

    <select id="queryProvincesName" parameterType="java.lang.Integer" resultType="java.lang.String">
        select province from provinces where provinceid = #{provinceid} LIMIT 1
    </select>

    <delete id="delete">
        DELETE from provinces
        <where>
            AND id = #{id}
        </where>
    </delete>

    <update id="deleteIds" parameterType="java.util.ArrayList">
        UPDATE provinces SET del_flag = 'Y'
        WHERE id IN
        <foreach item='ids' collection="array" index="index" open="(" separator="," close=")">
            #{ids}
        </foreach>
    </update>

</mapper>