scrapy爬取豆瓣电影top250

# -*- coding: utf-8 -*-
# scrapy爬取豆瓣电影top250

import scrapy
from douban.items import DoubanItem


class DoubanspiderSpider(scrapy.Spider):
    name = "doubanspider"
    # allowed_domains = ["movie.douban.com/top250"]注意这里的主页限制,一旦翻页可能超出范围
    start_urls = ['http://movie.douban.com/top250']

    def parse(self, response):
        item = DoubanItem()
        for each in response.css('.article .grid_view li'):
            # 电影名称
            title = each.css('.item .hd .title:nth-child(1)::text').extract_first()
            # 导演
            dire_actor = each.css('.item .bd p::text').extract()[0].strip()
            director = dire_actor.split('xa0xa0xa0')[0].strip()
            # 演员
            actor = dire_actor.split('xa0xa0xa0')[1].strip()
            # 年代
            info = each.css('.item .bd p::text').extract()[1].strip()
            year = info.split('/')[0].strip()
            # 国家
            country = info.split('/')[1].strip()
            # 类型
            type = info.split('/')[2].strip()
            # 评分
            rating_num = each.css('.item .bd .star .rating_num::text').extract_first()
            # 经典台词
            quote = each.css('.item .bd .quote span::text').extract_first()
            # 海报
            image = each.css('.item .pic a img::attr(src)').extract_first()

            item['title'] = title
            item['director'] = director
            item['actor'] = actor
            item['year'] = year
            item['country'] = country
            item['type'] = type
            item['rating_num'] = rating_num
            item['quote'] = quote
            item['image'] = image

            yield item

        # 构造下一页的请求
        next = response.css('.paginator .next a::attr(href)').extract_first()
        if next:
            url = 'http://movie.douban.com/top250' + next
            print(url)
            yield scrapy.Request(url=url, callback=self.parse)