使用scrapyImagesPipeline爬取图片资源-创新互联
这篇文章运用简单易懂的例子给大家介绍使用scrapy ImagesPipeline爬取图片资源,内容非常详细,感兴趣的小伙伴们可以参考借鉴,希望对大家能有所帮助。
网站的建设创新互联公司专注网站定制,经验丰富,不做模板,主营网站定制开发.小程序定制开发,H5页面制作!给你焕然一新的设计体验!已为酒楼设计等企业提供专业服务。这是一个使用scrapy的ImagesPipeline爬取下载图片的示例,生成的图片保存在爬虫的full文件夹里。
scrapy startproject DoubanImgs
cd DoubanImgs
scrapy genspider download_douban douban.com
vim spiders/download_douban.py
# coding=utf-8 from scrapy.spiders import Spider import re from scrapy import Request from ..items import DoubanImgsItem class download_douban(Spider): name = 'download_douban' default_headers = { 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8', 'Accept-Encoding': 'gzip, deflate, sdch, br', 'Accept-Language': 'zh-CN,zh;q=0.8,en;q=0.6', 'Cache-Control': 'max-age=0', 'Connection': 'keep-alive', 'Host': 'www.douban.com', 'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36', } def __init__(self, url='1638835355', *args, **kwargs): self.allowed_domains = ['douban.com'] self.start_urls = [] for i in xrange(23): if i == 0: page_url = 'http://www.douban.com/photos/album/' + url else: page_url = 'http://www.douban.com/photos/album/' + url + '/?start=' + str(i*18) self.start_urls.append(page_url) self.url = url # call the father base function # super(download_douban, self).__init__(*args, **kwargs) def start_requests(self): for url in self.start_urls: yield Request(url=url, headers=self.default_headers, callback=self.parse) def parse(self, response): list_imgs = response.xpath('//div[@class="photolst clearfix"]//img/@src').extract() if list_imgs: item = DoubanImgsItem() item['image_urls'] = list_imgs yield item
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