基于Python的小说自动采集脚本

Tyrant • 2019年05月10日 • Python 免费资源 • 253 • 3

最近突然想起来看一看高中时期未看完的小说,心血来潮就去网上找了找资源,发现不论下载下来的txt文件还是专门用来看小说的app不是有广告,就是缺少章节,观看体验十分不爽,为了解决这个问题,自己动手,丰衣足食,于是这个采集脚本应运而生

技术要点:

BeautifulSoup4:解析标签
Requests:模拟http请求
Python3

脚本使用步骤:

安装BeautifulSoup4

pip3 install beautifulsoup4

安装requests

pip3 install requests

保存以下代码为book.py

import re                                                                             import sys
import requests
import time
from bs4 import BeautifulSoup
from requests.packages.urllib3.exceptions import InsecureRequestWarning 
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)

class BookSpider():
    '''爬取顶点小说网小说'''
    def __init__(self):
               
       self.headers = { 
            'Host':'www.dingdiann.com',
            'User-Agent':'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Safari/537.36',
        }
       self.chapter_url_list = list()
       self.chapter_name_list = list()
       self.book_info = dict()

    def get_book_url(self, book_name, author_name):
        '''获取要爬取书籍的详情页'''
        url = 'https://www.dingdiann.com/searchbook.php'
        data = {
            'keyword':book_name
        }
        result = requests.get(url, headers=self.headers, params=data, verify=False).text
        soup = BeautifulSoup(result, 'lxml')
        book_name_list = soup.find_all(name='span', attrs={'class':'s2'})
        book_author_list = soup.find_all(name='span', attrs={'class':'s4'})
        book_name_list.pop(0)
        book_author_list.pop(0)
        for candidate_name in book_name_list:
            book_info_list = list()
            name = str(candidate_name.a.string)
            book_url = str(candidate_name.a.get('href'))
            book_info_tuple = (name, book_url)
            book_info_list.append(book_info_tuple)
            author = str(book_author_list[0].string)
            if author in self.book_info.keys():
                self.book_info[author].append(book_info_tuple)
                book_author_list.pop(0)
            else:
                self.book_info[author] = book_info_list
                book_author_list.pop(0)
        if self.book_info[author_name]:
            for info in self.book_info[author_name]:
                if info[0] == book_name:
                    url = info[1]
                    print('书籍已经找到,您要找的书籍为 ' + book_name + ':' + author_name)   
                    print('3S 后将开始下载~~~')
                    time.sleep(3)
                    return url
        else:
            print('抱歉,书籍未找到,请确认书籍作者及名称是否正确~~~')

    def get_book_info(self, url):
        '''获取书籍的章节列表和地址'''
        all_url = 'https://www.dingdiann.com' + url
        result = requests.get(all_url, headers=self.headers, verify=False).text
        soup = BeautifulSoup(result, 'lxml')
        div = soup.find_all(id='list')[0]
        chapter_list = div.dl.contents

        for text in chapter_list :
            text = str(text)
            content = re.findall('<a href="' + url + '(.*?)" style="">(.*?)</a>.*?', text)
            if content:
                chapter_url = all_url + content[0][0]
                chapter_name = content[0][1]
                self.chapter_url_list.append(chapter_url)
                self.chapter_name_list.append(chapter_name)

        for i in range(12):
            self.chapter_url_list.pop(0)
            self.chapter_name_list.pop(0)
    
    def get_chapter_content(self, name, url):
        '''获取小说每章内容'''        
        try:
            result = requests.get(url, headers=self.headers, verify=False).text
        except:
            print(name + "下载失败~~~")
            return False
        else:
            soup = BeautifulSoup(result, 'lxml')
            div = soup.find_all(id='content')[0]
            div = str(div)
            result = re.findall('<div id="content">(.*?)<script>', div, re.S)[0].strip()
            result = re.sub('<br/>', '\n', result)
            return result
    
    def save_book(self, book_name):
        '''保存小说'''
        for chapter_name in self.chapter_name_list:
            while True:
                chapter_content = self.get_chapter_content(chapter_name, self.chapter_url_list[0])
                if chapter_content:
                    with open(book_name + ".txt", 'a') as f:
                        f.write(chapter_name)
                        f.write("\n")
                        f.write(chapter_content)
                        f.write("\n")
                    self.chapter_url_list.pop(0)
                    print(chapter_name + "已经下载完成")
                    break

    def run(self, book_name, url):
        self.get_book_info(url)
        self.save_book(book_name)

def main(book_name, author_name):
    book = BookSpider()
    url = book.get_book_url(book_name, author_name)
    book.run(book_name, url)

if __name__ == "__main__":
    main(sys.argv[1], sys.argv[2])