到目前为止,我已经从一页抓取了数据。我想继续到分页结束。
Click Here来查看页面
似乎有问题,因为href包含一个javascript元素。
<a href="javascript:void(0)" class="next" data-role="next" data-spm-anchor-id="a2700.galleryofferlist.pagination.8">Next</a>
# -*- coding: utf-8 -*-
import scrapy
class AlibabaSpider(scrapy.Spider):
name = 'alibaba'
allowed_domains = ['alibaba.com']
start_urls = ['https://www.alibaba.com/catalog/agricultural-growing-media_cid144?page=1']
def parse(self, response):
for products in response.xpath('//div[contains(@class, "m-gallery-product-item-wrap")]'):
item = {
'product_name': products.xpath('.//h2/a/@title').extract_first(),
'price': products.xpath('.//div[@class="price"]/b/text()').extract_first('').strip(),
'min_order': products.xpath('.//div[@class="min-order"]/b/text()').extract_first(),
'company_name': products.xpath('.//div[@class="stitle util-ellipsis"]/a/@title').extract_first(),
'prod_detail_link': products.xpath('.//div[@class="item-img-inner"]/a/@href').extract_first(),
'response_rate': products.xpath('.//i[@class="ui2-icon ui2-icon-skip"]/text()').extract_first('').strip(),
#'image_url': products.xpath('.//div[@class=""]/').extract_first(),
}
yield item
#Follow the paginatin link
next_page_url = response.xpath('//link[@rel="next"]/@href').extract_first()
if next_page_url:
yield scrapy.Request(url=next_page_url, callback=self.parse)
答案 0 :(得分:1)
要查找和解析类别中的所有页面,可以使用类似以下内容的东西:
myFragment =(myFragment)getFragmentManager().findFragmentById(R.id.external_display);
View view = myFragment.getView();
textureView = view.findViewById(R.id.camera_preview);
surfaceTexture = textureView.getSurfaceTexture();
答案 1 :(得分:1)
您可以使用类似的代码来获取下一页URL:
next_page_url = response.xpath('//div[@class="ui2-pagination-pages"]/span[@class="current"]/following-sibling::a[1][contains(@href, "?page=")]/@href').extract_first()
但是这将不起作用,因为分页块是由Javascript渲染的:-(
但是您可以使用某种技巧:
next_page_url = response.xpath('//link[@rel="next"]/@href').extract_first()