我正在尝试使用Scrapy抓取Google App Store，我认为脚本是正确的，但实际上它没有抓取任何内容，我也不知道为什么会发生这种情况。
代码如下：
# -*- coding: utf-8 -*-
import scrapy
# from scrapy.spiders import CrawlSpider, Rule
# from scrapy.linkextractors import LinkExtractor
# from html.parser import HTMLParser as SGMLParser
from scrapy import Request
from gp.items import GpItem
class GoogleSpider(scrapy.Spider):
# print("HELLO STARTING")
name = 'google'
allowed_domains = ['play.google.com']
start_urls = ['https://play.google.com/store/apps/']
'''
rules = [
Rule(LinkExtractor(allow=("https://play\.google\.com/store/apps/details",)), callback='parse_app', follow=True),
]
'''
def parse(self, response):
print("CALLING PARSE")
selector = scrapy.Selector(response)
# print(response.body)
urls = selector.xpath('//a[@class="LkLjZd ScJHi U8Ww7d xjAeve nMZKrb id-track-click "]/@href').extract()
link_flag = 0
links = []
for link in urls:
# print("LINK" + str(link))
links.append(link)
for each in urls:
yield Request(url="http://play.google.com" + links[link_flag], callback=self.parse_next, dont_filter=True)
print("http://play.google.com" + links[link_flag])
link_flag += 1
def parse_next(self, response):
selector = scrapy.Selector(response)
# print(response)
# app_urls = selector.xpath('//div[@class="details"]/a[@class="title"]/@href').extract()
app_urls = selector.xpath('//div[@class="b8cIId ReQCgd Q9MA7b"]/a/@href').extract()
urls = []
for url in app_urls:
url = "http://play.google.com" + url
# print(url)
urls.append(url)
link_flag = 0
for each in app_urls:
yield Request(urls[link_flag], callback=self.parse_app, dont_filter=True)
link_flag += 1
def parse_app(self, response):
item = GpItem()
item['app_url'] = response.url
item['app_name'] = response.xpath('//h1[@itemprop="name"]').xpath('text()').extract()
item['app_icon'] = response.xpath('//img[@itemprop="image"]/@src')
# item['app_developer'] = response.xpath('//')
# print(response.text)
yield item
信息显示在终端上：
2019-11-15 10:55:28 [scrapy.utils.log] INFO: Scrapy 1.6.0 started (bot: gp)
2019-11-15 10:55:28 [scrapy.utils.log] INFO: Versions: lxml 4.2.5.0, libxml2 2.9.8, cssselect 1.0.3, parsel 1.5.1, w3lib 1.20.0, Twisted 19.2.1, Python 3.7.1 (default, Dec 14 2018, 13:28:58) - [Clang 4.0.1 (tags/RELEASE_401/final)], pyOpenSSL 18.0.0 (OpenSSL 1.1.1a 20 Nov 2018), cryptography 2.4.2, Platform Darwin-18.5.0-x86_64-i386-64bit
2019-11-15 10:55:28 [scrapy.crawler] INFO: Overridden settings: {'BOT_NAME': 'gp', 'NEWSPIDER_MODULE': 'gp.spiders', 'ROBOTSTXT_OBEY': True, 'SPIDER_MODULES': ['gp.spiders'], 'USER_AGENT': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.87 Safari/537.36'}
2019-11-15 10:55:28 [scrapy.extensions.telnet] INFO: Telnet Password: ca6fa8970302a9fb
2019-11-15 10:55:28 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
'scrapy.extensions.telnet.TelnetConsole',
'scrapy.extensions.memusage.MemoryUsage',
'scrapy.extensions.logstats.LogStats']
2019-11-15 10:55:28 [scrapy.middleware] INFO: Enabled downloader middlewares:
['scrapy.downloadermiddlewares.robotstxt.RobotsTxtMiddleware',
'scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware',
'scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware',
'scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware',
'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware',
'scrapy.downloadermiddlewares.retry.RetryMiddleware',
'scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware',
'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware',
'scrapy.downloadermiddlewares.redirect.RedirectMiddleware',
'scrapy.downloadermiddlewares.cookies.CookiesMiddleware',
'scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware',
'scrapy.downloadermiddlewares.stats.DownloaderStats']
2019-11-15 10:55:28 [scrapy.middleware] INFO: Enabled spider middlewares:
['scrapy.spidermiddlewares.httperror.HttpErrorMiddleware',
'scrapy.spidermiddlewares.offsite.OffsiteMiddleware',
'scrapy.spidermiddlewares.referer.RefererMiddleware',
'scrapy.spidermiddlewares.urllength.UrlLengthMiddleware',
'scrapy.spidermiddlewares.depth.DepthMiddleware']
2019-11-15 10:55:28 [scrapy.middleware] INFO: Enabled item pipelines:
['gp.pipelines.GpPipeline']
2019-11-15 10:55:28 [scrapy.core.engine] INFO: Spider opened
2019-11-15 10:55:28 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2019-11-15 10:55:28 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2019-11-15 10:55:28 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://play.google.com/robots.txt> (referer: None)
2019-11-15 10:55:28 [scrapy.downloadermiddlewares.redirect] DEBUG: Redirecting (302) to <GET https://www.google.com/sorry/index?continue=https://play.google.com/store/apps/&q=EgRcBtHqGKCIuu4FIhkA8aeDS5g5w_8B4TmR8HklMm8-Dkpu_TRlMgFy> from <GET https://play.google.com/store/apps/>
2019-11-15 10:55:29 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://www.google.com/robots.txt> (referer: None)
2019-11-15 10:55:29 [scrapy.downloadermiddlewares.robotstxt] DEBUG: Forbidden by robots.txt: <GET https://www.google.com/sorry/index?continue=https://play.google.com/store/apps/&q=EgRcBtHqGKCIuu4FIhkA8aeDS5g5w_8B4TmR8HklMm8-Dkpu_TRlMgFy>
2019-11-15 10:55:29 [scrapy.core.engine] INFO: Closing spider (finished)
2019-11-15 10:55:29 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/exception_count': 1,
'downloader/exception_type_count/scrapy.exceptions.IgnoreRequest': 1,
'downloader/request_bytes': 1308,
'downloader/request_count': 3,
'downloader/request_method_count/GET': 3,
'downloader/response_bytes': 5372,
'downloader/response_count': 3,
'downloader/response_status_count/200': 2,
'downloader/response_status_count/302': 1,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2019, 11, 15, 10, 55, 29, 282065),
'log_count/DEBUG': 4,
'log_count/INFO': 9,
'memusage/max': 54194176,
'memusage/startup': 54194176,
'response_received_count': 2,
'robotstxt/forbidden': 1,
'robotstxt/request_count': 2,
'robotstxt/response_count': 2,
'robotstxt/response_status_count/200': 2,
'scheduler/dequeued': 2,
'scheduler/dequeued/memory': 2,
'scheduler/enqueued': 2,
'scheduler/enqueued/memory': 2,
'start_time': datetime.datetime(2019, 11, 15, 10, 55, 28, 496345)}
2019-11-15 10:55:29 [scrapy.core.engine] INFO: Spider closed (finished)
我检查了 urls 和 XPath选择器，我认为这是正确的。我不知道问题出在哪里。有人可以帮我解决这个问题吗？