Python爬虫：多线程爬取盗墓笔记

用到的库函数

import requests

import time

from lxml import etree

from multiprocessing.pool import Pool

爬取用xpath

爬取 盗墓笔记的标题、章节、正文

直接上代码：

页面获取;

def get_info(url):
   
    headers = {
        'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
        'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.25 Safari/537.36 Core/1.70.3722.400 QQBrowser/10.5.3738.400'
    }

    response = requests.get(url=url,headers=headers)
    return response.text

正文抽取解析：

def paser_conten(contents):
    selectors = etree.HTML(contents)
    pages = selectors.xpath('//article[@class="article-content"]//p/text()')
    pages = ''.join(pages)
    #print(pages)
    return pages

文件保存：

def save(content):
    with open('daomubiji1.doc','a',encoding='utf-8')as f:
        f.write(content+'\n')

信息提取：

def get_books(url):
    selector = etree.HTML(get_info(url))
    title = selector.xpath('//h1[@class="focusbox-title"]/text()')[0]
    print(title)
    save(title)
    items = selector.xpath('//article[@class="excerpt excerpt-c3"]')
    for item in items:
        section = item.xpath('./a/text()')[0]
        print(section)
        save(section)
        detail_href = item.xpath('./a/@href')[0]
        contents = get_info(detail_href)
        detail_content = paser_conten(contents)
        print(detail_content)
        save(detail_content)

创建线程运行：

if __name__ == "__main__": 
     print('***开始爬取****'*50)  
    url = ['http://www.daomubiji.com/dao-mu-bi-ji-%s' %i for i in range(1,2)]   
    pool = Pool()
    reaponse = pool.map(get_books,url)
    pool.close()
    pool.join()
    time.sleep(1)
   
   
    

爬取结果（内容截屏不全）：