<select id="selectByFieldValues" parameterType="map" resultMap="yourResultMap">
  SELECT *
  FROM your_table
  <where>
    <if test="fieldValues != null and fieldValues != ''">
      <!-- 使用动态SQL生成IN语句 -->
      AND your_field IN
      <foreach item="item" index="index" collection="fieldValues.split(',')" open="(" separator="," close=")">
        #{item}
      </foreach>
    </if>
  </where>
</select>