python实现爬虫数据存到 MongoDB_MongoDB_

 # coding=utf-8 import re import requests from lxml import etree import pymongo import sys reload(sys) sys.setdefaultencoding('utf-8') def getpages(url, total): nowpage = int(re.search('(\d+)', url, re.S).group(1)) urls = [] for i in range(nowpage, total + 1): link = re.sub('(\d+)', '%s' % i, url, re.S) urls.append(link) return urls def spider(url): html = requests.get(url) selector = etree.HTML(html.text) book_name = selector.xpath('//*[@id="container"]/ul/li//div/div[2]/a/text()') book_author = selector.xpath('//*[@id="container"]/ul/li//div/div[2]/div/a/text()') saveinfo(book_name, book_author) def saveinfo(book_name, book_author): connection = pymongo.MongoClient() BookDB = connection.BookDB BookTable = BookDB.books length = len(book_name) for i in range(0, length): books = {} books['name'] = str(book_name[i]).replace('\n','') books['author'] = str(book_author[i]).replace('\n','') BookTable.insert_one(books) if __name__ == '__main__': url = 'http://readfree.me/shuffle/?page=1' urls = getpages(url,3) for each in urls: spider(each)