python+scrapy+mongoDB爬取豆瓣top250

1.爬取网址：https://movie.douban.com/top250?start=0

通过scrapy startproject douban创建项目

通过scrapy genspider doubanmovie "douban"创建spider

在settings.py文件中设置管道文件和mongodb的基本信息：

打开延迟

items.py

doubanmovie.py文件：

# -*- coding: utf-8 -*-
import scrapy
from douban.items import DoubanItem


class DoubanmovieSpider(scrapy.Spider):
    name = 'doubanmovie'
    allowed_domains = ['douban.com']
    # https://movie.douban.com/top250?start=25&filter=
    offset = 0
    url = "http://movie.douban.com/top250?start="

    start_urls = [url + str(offset)]

    def parse(self, response):
        item = DoubanItem()
        movies = response.xpath("//div[@class='info']")
        for each in movies:
            # 标题
            item['title'] = each.xpath(".//span[@class='title'][1]/text()").extract()[0]
            # 信息
            item['bd'] = each.xpath(".//div[@class='bd']/p/text()").extract()[0]
            # 评分
            item['star'] = each.xpath(".//div[@class='star']/span[@class='rating_num']/text()").extract()[0]
            # 简介
            quote = each.xpath(".//p[@class='quote']/span/text()").extract()
            if len(quote) != 0:
                item['quote'] = quote[0]
            yield item

        if self.offset < 225:
            self.offset += 25
            scrapy.Request(self.url + str(self.offset), callback=self.parse)

管道文件：

通过robo 3T查看：