scrapy利用selenium实现爬取豆瓣阅读的方法教程-创新互联
scrapy利用selenium实现爬取豆瓣阅读的方法教程?针对这个问题,这篇文章详细介绍了相对应的分析和解答,希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
创新互联公司专注于任丘网站建设服务及定制,我们拥有丰富的企业做网站经验。 热诚为您提供任丘营销型网站建设,任丘网站制作、任丘网页设计、任丘网站官网定制、微信平台小程序开发服务,打造任丘网络公司原创品牌,更为您提供任丘网站排名全网营销落地服务。首先创建scrapy项目
命令:scrapy startproject douban_read
创建spider
命令:scrapy genspider douban_spider url
网址:https://read.douban.com/charts
关键注释代码中有,若有不足,请多指教
scrapy项目目录结构如下
douban_spider.py文件代码
爬虫文件
import scrapy import re, json from ..items import DoubanReadItem class DoubanSpiderSpider(scrapy.Spider): name = 'douban_spider' # allowed_domains = ['www'] start_urls = ['https://read.douban.com/charts'] def parse(self, response): # print(response.text) # 获取图书分类的url type_urls = response.xpath('//div[@class="rankings-nav"]/a[position()>1]/@href').extract() # print(type_urls) for type_url in type_urls: # /charts?type=unfinished_column&index=featured&dcs=charts&dcm=charts-nav part_param = re.search(r'charts\?(.*?)&dcs', type_url).group(1) # https://read.douban.com/j/index//charts?type=intermediate_finalized&index=science_fiction&verbose=1 ajax_url = 'https://read.douban.com/j/index//charts?{}&verbose=1'.format(part_param) yield scrapy.Request(ajax_url, callback=self.parse_ajax, encoding='utf-8', meta={'request_type': 'ajax'}) def parse_ajax(self, response): # print(response.text) # 获取分类中图书的json数据 json_data = json.loads(response.text) for data in json_data['list']: item = DoubanReadItem() item['book_id'] = data['works']['id'] item['book_url'] = data['works']['url'] item['book_title'] = data['works']['title'] item['book_author'] = data['works']['author'] item['book_cover_image'] = data['works']['cover'] item['book_abstract'] = data['works']['abstract'] item['book_wordCount'] = data['works']['wordCount'] item['book_kinds'] = data['works']['kinds'] # 把item yield给Itempipeline yield item
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