mybatis xml 关联查询

<resultMap type="xxxx.QRDetails" id="qrdetail">
        <id property="id" column="id"/>
        <result property="qrCode" column="qr_code"/>
        <result property="state" column="state"/>
        <result property="proId" column="pro_id"/>
        <result property="qrScopeId" column="qr_scope_id"/>
        <result property="sequence" column="sequence"/>
        <result property="qrSum" column="qr_sum"/>
        
        <association property="production" column="pro_id" select="com.jianqiao.dao.ProductionMapper.getOne"></association>
        <collection property="scanRecord" column="qr_code" select="com.jianqiao.dao.QrScanRecordMapper.getoneQrscanrecord"></collection>
        
    </resultMap>