爬取三国演义小说

PYTHON 2022年1月8日

所有的章节标题和内容

虽然我感觉数据解析用xpath和正则表达式就够用了，但这个BeautifulSoup也是个绕不过去的坎。

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import requests
from bs4 import BeautifulSoup
import time
if __name__ == '__main__':
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.96 Safari/537.36 Edg/88.0.705.50'
    }
    url = 'https://www.shicimingju.com/book/sanguoyanyi.html'
    #   以下代码是为了避免乱码,如果中文没有乱码可以直接写成  page_text = requests.get(url=url,headers=headers).text
    r = requests.get(url=url,headers=headers).content   #   以二进制的形式返回数据
    page_text = str(r,'utf-8')      # 把二进制数据转换为文本
    # 在首页中解析出章节的标题和详情页
    # 1.实例化BeautifulSoup对象,需要将页面源码数据加载到该对象中
    soup = BeautifulSoup(page_text,'lxml')
    # # 解析章节标题和详情页
    li_list = soup.select('.book-mulu > ul > li')
    fp = open('./sanguo.txt','w',encoding='utf-8')  # 创建文件
    for li in li_list:
        #  得到章节标题
        title = li.a.string
        detail_url = 'https://www.shicimingju.com'+li.a['href']
        # 对详情页发起请求,获取详情页
        detail_r = requests.get(url=detail_url,headers=headers).content
        detail_page_text = str(detail_r,'utf-8')
        # 解析详情页,获取章节内容
        detail_page_soup = BeautifulSoup(detail_page_text,'lxml')
        div_tag = detail_page_soup.find('div',class_='chapter_content')
        # 得到章节内容
        content = div_tag.text
        fp.write(title+':'+content+'\n')     # 追加内容
        print(title,'爬取完成.......')
        time.sleep(0.1)
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