Python多线程爬取小说

上一篇 Python爬取文章和小说内容

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一、效果

二、代码(可直接运行)

先安装所需要的库

1、pip install requests
2、pip install lxml
3、pip install bs4

安装完成后则可运行代码：

import requests
from lxml import etree
import os
from queue import Queue
import threading
class Biquge(threading.Thread):
    def __init__(self,url=None,name=None,q_novels=None):
        super().__init__()
        self.url = url
        self.name = name
        self.q_novel = q_novels
        self.proxies = self.get_proxies()
        # self.parse()

    def get_proxies(self):
        try:
            response = requests.get('http://localhost:5000/get')
            proxy = response.text
            proxies = {
                'http': 'http://' + proxy
            }
            return proxies
        except Exception:
            return None

    def get_xpath_by_requests(self,url, proxies):
        '''
        :param url:
        :param proxies: 代理字典
        :return:
        '''
        try:
            headers = {
                'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36',
                'Cookie': '_abcde_qweasd=0; _abcde_qweasd=0; bdshare_firstime=1577178973028; Hm_lvt_169609146ffe5972484b0957bd1b46d6=1577178973,1577186563,1577186739,1577235413; BAIDU_SSP_lcr=https://www.baidu.com/link?url=AvLJGcMiHKBXi90P2T0xOluezhPz2PeeTLAbP75dmma&wd=&eqid=e131d391001338d8000000025e02b3d2; Hm_lpvt_169609146ffe5972484b0957bd1b46d6=1577235422',
                'Referer': 'http://www.xbiquge.la/'
            }
            response = requests.get(url, headers=headers, proxies=proxies)
            return etree.HTML(response.content.decode('utf-8'))
        except Exception:
            new_proxies = self.get_proxies()
            print('更换{}代理ip！'.format(new_proxies))
            return self.get_xpath_by_requests(url, new_proxies)

    def get_text(self,text):
        if text:
            return text[0]
        return ''

    def write_to_txt(self,text, book_name):
        filename = './book/' + book_name + '.txt'   # 保存的文件名以及文件格式
        dirname = os.path.dirname(filename)
        if not os.path.exists(dirname):
            os.mkdir(dirname)
        with open(filename, 'a+', encoding='utf-8') as fp:   # 写入操作
            fp.write(text)

    def parse_chapter(self,url):
        url = 'http://www.xbiquge.la' + url
        html = self.get_xpath_by_requests(url, self.proxies)
        chapter_name = self.get_text(html.xpath('//div[@class="bookname"]/h1/text()'))
        book_name = self.get_text(html.xpath('//div[@class="con_top"]/a[last()]/text()'))
        # print(chapter_name,book_name)
        contents = html.xpath('//div[@id="content"]/text()')
        # print(type(contents))
        # content = ''
        content = ''.join(contents)
        text = chapter_name + r'\n' + content
        self.write_to_txt(text, book_name)
        # print(url)
        # print(''.join(contents))

    def parse_novel(self,url):
        # 获取页面xpath对象
        html = self.get_xpath_by_requests(url, self.proxies)
        chapters = html.xpath('//div[@id="list"]/dl/dd/a/@href')
        # print(chapters)
        for chapter in chapters:
            self.parse_chapter(chapter)

    def get_novels(self):
        html = self.get_xpath_by_requests(self.url, self.proxies)
        novel_urls = html.xpath('//span[@class="s2"]/a/@href')
        # print(novel_urls)
        return novel_urls
        # for url in novel_urls:
        #     self.parse_novel(url)
    def run(self):
        while True:
            if self.q_novel.empty():
                break
            novel_url = self.q_novel.get()
            print('======={}==========@{}'.format(novel_url,self.name))
            self.parse_novel(novel_url)
if __name__ == '__main__':
    base_url = 'http://www.xbiquge.la/xuanhuanxiaoshuo/'
    b = Biquge(url=base_url)
    novel_urs = b.get_novels()
    #初始化任务队列
    q_novels = Queue()
    for url in novel_urs:
        q_novels.put(url)
    #创建一个list，遍历这个list创建线程
    crawl_list = ['1','2','3','4','5']
    for crwal in crawl_list:
        t = Biquge(name = crwal,q_novels=q_novels)
        t.start()

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上一篇 Python爬取文章和小说内容

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原文链接：https://blog.csdn.net/D_wart/article/details/103695881