【Python爬虫】糗事百科段子数据采集

1.爬虫基本步骤
2.requests模块
3.parsel模块
4.xpath数据解析方法
5.分页功能

1.获取网页地址 (糗事百科的段子的地址)
2.发送请求
3.数据解析
4.保存 本地

import re
import requests
import parsel

url = 'https://www.qiushibaike.com/text/'
# 请求头   伪装客户端向服务器发送请求
headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36'
}

requ = requests.get(url=url, headers=headers).text

sel = parsel.Selector(requ)  # 解析对象 
href = sel.xpath('//body/div/div/div[2]/div/a[1]/@href').getall()
for html in href:
    txt_href = 'https://www.qiushibaike.com' + html
    requ2 = requests.get(url=txt_href, headers=headers).text
    sel2 = parsel.Selector(requ2)
    title = sel2.xpath('//body/div[2]/div/div[2]/h1/text()').get().strip()
    title = re.sub(r'[|/：？<>*]','_',title)
    # content = sel2.xpath('//div[@]/text()').getall()
    content = sel2.xpath('//body/div[2]/div/div[2]/div[2]/div[1]/div/text()').getall()
    contents = 'n'.join(content)

with open('糗事百科text\'+title + '.txt', mode='w', encoding='utf-8') as fp:
    fp.write(contents)
    print(title, '下载成功')

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