我的爬行器运行时没有显示任何错误,但图像没有存储在文件夹中,以下是我的抓取文件:
Spider.py:
import scrapy
import re
import os
import urlparse
from scrapy.spiders import CrawlSpider, Rule
from scrapy.linkextractors import LinkExtractor
from scrapy.loader.processors import Join, MapCompose, TakeFirst
from scrapy.pipelines.images import ImagesPipeline
from production.items import ProductionItem, ListResidentialItem
class productionSpider(scrapy.Spider):
name = "production"
allowed_domains = ["someurl.com"]
start_urls = [
"someurl.com"
]
def parse(self, response):
for sel in response.xpath('//html/body'):
item = ProductionItem()
img_url = sel.xpath('//a[@data-tealium-id="detail_nav_showphotos"]/@href').extract()[0]
yield scrapy.Request(urlparse.urljoin(response.url, img_url),callback=self.parseBasicListingInfo, meta={'item': item})
def parseBasicListingInfo(item, response):
item = response.request.meta['item']
item = ListResidentialItem()
try:
image_urls = map(unicode.strip,response.xpath('//a[@itemprop="contentUrl"]/@data-href').extract())
item['image_urls'] = [ x for x in image_urls]
except IndexError:
item['image_urls'] = ''
return item
settings.py:
from scrapy.settings.default_settings import ITEM_PIPELINES
from scrapy.pipelines.images import ImagesPipeline
BOT_NAME = 'production'
SPIDER_MODULES = ['production.spiders']
NEWSPIDER_MODULE = 'production.spiders'
DEFAULT_ITEM_CLASS = 'production.items'
ROBOTSTXT_OBEY = True
DEPTH_PRIORITY = 1
IMAGE_STORE = '/images'
CONCURRENT_REQUESTS = 250
DOWNLOAD_DELAY = 2
ITEM_PIPELINES = {
'scrapy.contrib.pipeline.images.ImagesPipeline': 300,
}
items.py
# -*- coding: utf-8 -*-
import scrapy
class ProductionItem(scrapy.Item):
img_url = scrapy.Field()
# ScrapingList Residential & Yield Estate for sale
class ListResidentialItem(scrapy.Item):
image_urls = scrapy.Field()
images = scrapy.Field()
pass
我的管道文件是空的,我不确定我应该添加什么到pipeline.py文件中。
任何帮助都是非常感谢的。
https://stackoverflow.com/questions/38772662
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