一层逻辑的网页scrapy爬虫

 1 import scrapy
 2 import re
 3 from fake_useragent import UserAgent
 4 
 5 
 6 class DoubanSpider(scrapy.Spider):
 7     name = "douban"
 8     start_urls = [‘https://movie.douban.com/top250‘, ]
 9     custom_settings = {"USER_AGENT": UserAgent().random}
10 
11     def parse(self, response):
12         for movie in response.xpath("//ol[@class=‘grid_view‘]/li"):
13             
14             yield {
15                 ‘Title‘: movie.xpath(".//span[@class=‘title‘]/text()").get(),
16                 ‘Rating_num‘: movie.xpath(".//span[@class=‘rating_num‘]/text()").get(),
17                 ‘Quote‘: movie.xpath(".//p[@class=‘quote‘]/span/text()").get()
18             }
19 
20         next_page = response.xpath("//span[@class=‘next‘]/a/@href").get()
21         if next_page is not None:
22             yield response.follow(next_page, callback=self.parse)