mybatis映射文件配置-1对多

<?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.echo.digital.beans.TbTypeMapper">

    <resultMap id="TbTypeResultMap" type="com.echo.digital.beans.TbType">
        <id column="type_id" property="typeId" javaType="java.lang.Integer"></id>
        <result column="type_name" property="typeName" javaType="java.lang.String"></result>
        <result  column="type_img" property="typeImg" javaType="java.lang.String"></result>
        <collection property="brands" ofType="com.echo.digital.beans.TbBrand">
            <id column="brand_id" property="brandId" javaType="java.lang.Integer"></id>
            <result column="brand_name" property="brandName" javaType="java.lang.String"></result>
        </collection>
    </resultMap>

    <select id="findType" resultMap="TbTypeResultMap">
        select type_name,type_img,brand_name from tb_type
    </select>

    <select id="findBrand" resultMap="TbTypeResultMap">
        select brand_name from tb_type t join tb_brand b on t.type_id=b.brand_type_id
        and t.type_name=#{typeName}
    </select>

</mapper>

多对一：用association标签