Python使用scrapy抓取网站sitemap信息的方法

本文实例讲述了Python使用scrapy抓取网站sitemap信息的方法。分享给大家供大家参考。具体如下：

import re
from scrapy.spider import BaseSpider
from scrapy import log
from scrapy.utils.response import body_or_str
from scrapy.http import Request
from scrapy.selector import HtmlXPathSelector
class SitemapSpider(BaseSpider):
name = "SitemapSpider"
start_urls = ["http://www.domain.com/sitemap.xml"]
def parse(self, response):
 nodename = 'loc'
 text = body_or_str(response)
 r = re.compile(r"(<％s[\s>])(.*?)(</％s>)"％(nodename,nodename),re.DOTALL)
 for match in r.finditer(text):
  url = match.group(2)
  yield Request(url, callback=self.parse_page)
def parse_page(self, response):
   hxs = HtmlXPathSelector(response)
   #Mock Item
 blah = Item()
 #Do all your page parsing and selecting the elemtents you want
   blash.divText = hxs.select('//div/text()').extract()[0]
 yield blah

希望本文所述对大家的Python程序设计有所帮助。