我也想把下一页的内容刮下来,但没有转到下一页。我的代码是:
import scrapy
class AggregatorSpider(scrapy.Spider):
name = 'aggregator'
allowed_domains = ['startech.com.bd/component/processor']
start_urls = ['https://startech.com.bd/component/processor']
def parse(self, response):
processor_details = response.xpath('//*[@class="col-xs-12 col-md-4 product-layout grid"]')
for processor in processor_details:
name = processor.xpath('.//h4/a/text()').extract_first()
price = processor.xpath('.//*[@class="price space-between"]/span/text()').extract_first()
print ('\n')
print (name)
print (price)
print ('\n')
next_page_url = response.xpath('//*[@class="pagination"]/li/a/@href').extract_first()
# absolute_next_page_url = response.urljoin(next_page_url)
yield scrapy.Request(next_page_url)
我没有使用urljoin,因为下一个页面的url会给出整个url。我还尝试了yield函数中的dont\u filter=true参数,它给了我一个通过第一页的无限循环。我从终端收到的信息是[scrapy.SpiderMiddleware.场外]调试:已筛选的“到”的异地请求www.startech.com.bd': https://www.startech.com.bd/component/processor?页面=2>;
这是因为
allowed_domains
变量错误,请使用allowed_domains = ['www.startech.com.bd']
而不是(see the doc)。你知道吗您还可以修改下一页选择器,以避免再次转到第一页:
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