在写了我的第一个?递归?蜘蛛,我面临一些问题,我一整天都无法解决
我做过研究,但我尝试过的每一个解决方案都没有帮到我
我的修改设置.py
USER_AGENT = 'kartonage (Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0)'
DOWNLOAD_DELAY = 0.5
HTTPERROR_ALLOW_ALL = True
这个user_代理和httperror_allow_都是针对具有重定向301错误的其他人的一些解决方案
My modified items.py
import scrapy
class KartonageItem(scrapy.Item):
SKU = scrapy.Field()
Title = scrapy.Field()
Link = scrapy.Field()
Price = scrapy.Field()
Delivery_Status = scrapy.Field()
Weight = scrapy.Field()
QTY = scrapy.Field()
Volume = scrapy.Field()
我使用的代码
import scrapy
from ..items import KartonageItem
class KartonSpider(scrapy.Spider):
name = "kartons12"
allow_domains = ['karton.eu']
start_urls = [
'https://www.karton.eu/Faltkartons'
]
custom_settings = {'FEED_EXPORT_FIELDS': ['SKU', 'Title', 'Link', 'Price', 'Delivery_Status', 'Weight', 'QTY', 'Volume'] }
def parse(self, response):
url = response.xpath('//div[@class="cat-thumbnails"]')
for a in url:
link = a.xpath('a/@href')
yield response.follow(url=link.get(), callback=self.parse_category_cartons)
def parse_category_cartons(self, response):
url2 = response.xpath('//div[@class="cat-thumbnails"]')
for a in url2:
link = a.xpath('a/@href')
yield response.follow(url=link.get(), callback=self.parse_target_page)
def parse_target_page(self, response):
card = response.xpath('//div[@class="text-center articelbox"]')
for a in card:
items = KartonageItem()
link = a.xpath('a/@href')
items ['SKU'] = a.xpath('.//div[@class="delivery-status"]/small/text()').get()
items ['Title'] = a.xpath('.//h5[@class="title"]/a/text()').get()
items ['Link'] = a.xpath('.//h5[@class="text-center artikelbox"]/a/@href').extract()
items ['Price'] = a.xpath('.//strong[@class="price-ger price text-nowrap"]/span/text()').get()
items ['Delivery_Status'] = a.xpath('.//div[@class="signal_image status-2"]/small/text()').get()
yield response.follow(url=link.get(),callback=self.parse_item, meta={'items':items})
def parse_item(self,response):
table = response.xpath('//span[@class="product-info-inner"]')
items = KartonageItem()
items = response.meta['items']
items['Weight'] = a.xpath('.//span[@class="staffelpreise-small"]/text()').get()
items['Volume'] = a.xpath('.//td[@class="icon_contenct"][7]/text()').get()
yield items
HTTP 301不是错误,它是对Moved Permanently的响应。它会自动将您重定向到该页面的新地址。您可以在执行日志中看到已重定向
这本身不应该是个问题。这可能是其他原因造成的吗?蜘蛛有什么意外的行为吗
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