text: <?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.ly.train.flower.sample.web.dao.GoodsDao">
      <select id="findGoodsIdForRecommend" parameterType="int" resultType="java.lang.Integer">
          select goodsId from goods_recommend where customerId = #{customerId}
      </select>
  </mapper>
  