scrapy爬虫closed的问题

[disappearedgod]

E:\github\scrapy-HousePricing>scrapy crawl anjuke
2017-05-26 09:32:45 [scrapy.utils.log] INFO: Scrapy 1.4.0 started (bot: houseData)
2017-05-26 09:32:45 [scrapy.utils.log] INFO: Overridden settings: {'BOT_NAME': 'houseData', 'DEFAULT_ITEM_CLASS': 'houseData.items.HouseDataItem', 'NEWSPIDER_MODULE': 'houseData.spiders', 'SPIDER_MODULES': ['houseData.spiders']}
2017-05-26 09:32:45 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
 'scrapy.extensions.telnet.TelnetConsole',
 'scrapy.extensions.logstats.LogStats']
2017-05-26 09:32:45 [scrapy.middleware] INFO: Enabled downloader middlewares:
['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']
2017-05-26 09:32:45 [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']
2017-05-26 09:32:45 [scrapy.middleware] INFO: Enabled item pipelines:
['houseData.pipelines.JsonWithEncodingHousePipeline']
2017-05-26 09:32:45 [scrapy.core.engine] INFO: Spider opened
2017-05-26 09:32:45 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2017-05-26 09:32:45 [scrapy.extensions.telnet] DEBUG: Telnet console listening on 127.0.0.1:6023
2017-05-26 09:32:45 [scrapy.downloadermiddlewares.redirect] DEBUG: Redirecting (302) to <GET http://beijing.anjuke.com/404/?from=antispam> from <GET http://beijing.anjuke.com/sale>
2017-05-26 09:32:45 [scrapy.core.engine] DEBUG: Crawled (404) <GET http://beijing.anjuke.com/404/?from=antispam> (referer: None)
2017-05-26 09:32:45 [scrapy.spidermiddlewares.httperror] INFO: Ignoring response <404 http://beijing.anjuke.com/404/?from=antispam>: HTTP status code is not handled or not allowed
2017-05-26 09:32:45 [scrapy.core.engine] INFO: Closing spider (finished)
2017-05-26 09:32:45 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 613,
 'downloader/request_count': 2,
 'downloader/request_method_count/GET': 2,
 'downloader/response_bytes': 10010,
 'downloader/response_count': 2,
 'downloader/response_status_count/302': 1,
 'downloader/response_status_count/404': 1,
 'finish_reason': 'finished',
 'finish_time': datetime.datetime(2017, 5, 26, 1, 32, 45, 941714),
 'httperror/response_ignored_count': 1,
 'httperror/response_ignored_status_count/404': 1,
 'log_count/DEBUG': 3,
 'log_count/INFO': 8,
 'response_received_count': 1,
 'scheduler/dequeued': 2,
 'scheduler/dequeued/memory': 2,
 'scheduler/enqueued': 2,
 'scheduler/enqueued/memory': 2,
 'start_time': datetime.datetime(2017, 5, 26, 1, 32, 45, 561692)}
2017-05-26 09:32:45 [scrapy.core.engine] INFO: Spider closed (finished)

[PENGZhaoqing]

爬虫运行没什么问题，close也是正常关闭，只是没有爬到任何信息。

log信息里面：

2017-05-26 09:32:45 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2017-05-26 09:32:45 [scrapy.extensions.telnet] DEBUG: Telnet console listening on 127.0.0.1:6023
2017-05-26 09:32:45 [scrapy.downloadermiddlewares.redirect] DEBUG: Redirecting (302) to <GET http://beijing.anjuke.com/404/?from=antispam> from <GET http://beijing.anjuke.com/sale>
2017-05-26 09:32:45 [scrapy.core.engine] DEBUG: Crawled (404) <GET http://beijing.anjuke.com/404/?from=antispam> (referer: None)
2017-05-26 09:32:45 [scrapy.spidermiddlewares.httperror] INFO: Ignoring response <404 http://beijing.anjuke.com/404/?from=antispam>: HTTP status code is not handled or not allowed

Redirecting (302) to <GET http://beijing.anjuke.com/404/?from=antispam> from <GET http://beijing.anjuke.com/sale> 直接重定向至了404页面，所以爬虫无法继续爬取内容

[disappearedgod]

重定向的解决方法是加中间件么？

[PENGZhaoqing]

从重定向的url里看到?from=antispam，应该是网站加了反爬虫的机制。

你可以尝试改变爬虫的规则：

    rules = [
        Rule(sle(allow=(r'/sale/p\d+/#filtersort')), follow=True, callback='parse_page')
    ]

然后手动检查每一行里的item是否有值（debug模式）： item['floor'] = site.css("div.house-details > div:nth-child(2) > span:nth-child(7)::text").extract()

如果不行的话，考虑使用反爬虫ban机制：http://blkstone.github.io/2016/03/02/crawler-anti-anti-cheat/ 换换其他网站爬爬也行