如何从< script>中提取文本使用nokogiri进行标记并机械化? [英] How to extract text from <script> tag by using nokogiri and mechanize?
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问题描述
这是预订网站的源代码的一部分:
this is a part of the source code of a bookings web site:
<script>
booking.ensureNamespaceExists('env');
booking.env.b_map_center_latitude = 53.36480155016638;
booking.env.b_map_center_longitude = -2.2752803564071655;
booking.env.b_hotel_id = '35523';
booking.env.b_query_params_no_ext = '?label=gen173nr-17CAEoggJCAlhYSDNiBW5vcmVmaFCIAQGYAS64AQTIAQTYAQHoAQH4AQs;sid=e1c9e4c7a000518d8a3725b9bb6e5306;dcid=1';
</script>
我想提取booking.env.b_hotel_id.这样我就可以得到"25523"的值.如何使用nokogiri实现这一目标并实现机械化?
And I want to extract booking.env.b_hotel_id . So that i would get the value of '25523'. How do I achieve this with nokogiri and mechanize?
希望有人可以提供帮助！谢谢！ :)
Hope somebody can help! thanks! :)
推荐答案
require 'mechanize'
agent = Mechanize.new
page = agent.get('http://www.booking.com/hotel/us/solera-by-stay-alfred.html?label=gen173nr-17CAEoggJCAlhYSDNiBW5vcmVmcgV1c19ueYgBAZgBMbgBBMgBBNgBAegBAfgBAg;sid=695d6598485cb1a8fd9e39c5de3878ba;dcid=4;checkin=2015-10-20;checkout=2015-10-21;dist=0;group_adults=2;room1=A%2CA;sb_price_type=total;srfid=cf5d76283b73d34a1d7e0d61cad6974e38a94351X1;type=total;ucfs=1&')
match = agent.page.search("script").text.scan(/^booking.env.b_hotel_id = \'.*\'/)
puts match
puts match[0].split("'")[1]
输出:
booking.env.b_hotel_id = '1202411'
1202411
可帮助我解决这一问题的页面:
Pages that helped me figure this out:
http://robdodson.me/crawling-pages-with-机械化和nokogiri/
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