Python爬虫(十七)_糗事百科案例

糗事百科实例

爬取糗事百科段子，假设页面的URL是: http://www.qiushibaike.com/8hr/page/1

要求：

1. 使用requests获取页面信息，用XPath/re做数据提取
2. 获取每个帖子里的用户头像连接、用户姓名、段子内容、点赞次数和评论次数
3. 保存到json文件内

参考代码

#-*- coding:utf-8 -*-

import requests
from lxml import etree

page = 1 url = 'http://www.qiushibaike.com/8hr/page/' + str(page) headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36', 'Accept-Language': 'zh-CN,zh;q=0.8'} try: response = requests.get(url, headers=headers) resHtml = response.text html = etree.HTML(resHtml) result = html.xpath('//div[contains(@id,"qiushi_tag")]') for site in result: item = {} imgUrl = site.xpath('./div//img/@src')[0].encode('utf-8') # print(imgUrl) username = site.xpath('./div//h2')[0].text # print(username) content = site.xpath('.//div[@class="content"]/span')[0].text.strip().encode('utf-8') # print(content) # 投票次数 vote = site.xpath('.//i')[0].text # print(vote) #print site.xpath('.//*[@class="number"]')[0].text # 评论信息 comments = site.xpath('.//i')[1].text # print(comments) print imgUrl, username, content, vote, comments except Exception, e: print e