用Scrapy爬取网站时总获取不到源代码的解决办法

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用Scrapy爬取网站时总获取不到源代码的解决办法

运行Scrapy crawl gupiao，报错如下： 2017-11-06 16:28:19 [scrapy.utils.log] INFO: Scrapy 1.4.0 started (bot: gupiaosp ider) 2017-11-06 16:28:19 [scrapy.utils.log] INFO: Overridden settings: {'BOT_NAME': ' gupiaospider', 'NEWSPIDER_MODULE': 'gupiaospider.spiders', 'SPIDER_MODULES': ['g upiaospider.spiders']} 2017-11-06 16:28:19 [scrapy.middleware] INFO: Enabled extensions: ['scrapy.extensions.corestats.CoreStats', 'scrapy.extensions.telnet.TelnetConsole', 'scrapy.extensions.logstats.LogStats'] 2017-11-06 16:28:20 [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'] 2017-11-06 16:28:20 [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'] 2017-11-06 16:28:20 [scrapy.middleware] INFO: Enabled item pipelines: [] 2017-11-06 16:28:20 [scrapy.core.engine] INFO: Spider opened 2017-11-06 16:28:20 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pag es/min), scraped 0 items (at 0 items/min) 2017-11-06 16:28:20 [scrapy.extensions.telnet] DEBUG: Telnet console listening o n 127.0.0.1:6023 2017-11-06 16:28:21 [scrapy.core.engine] DEBUG: Crawled (200) <GET stock. 10jqka/> (referer: None) 2017-11-06 16:28:21 [scrapy.core.engine] INFO: Closing spider (finished) 2017-11-06 16:28:21 [scrapy.statscollectors] INFO: Dumping Scrapy stats: {'downloader/request_bytes': 217, 'downloader/request_count': 1, 'downloader/request_method_count/GET': 1, 'downloader/response_bytes': 278, 'downloader/response_count': 1, 'downloader/response_status_count/200': 1, 'finish_reason': 'finished', 'finish_time': datetime.datetime(2017, 11, 6, 8, 28, 21, 353422), 'log_count/DEBUG': 2, 'log_count/INFO': 7, 'response_received_count': 1, 'scheduler/dequeued': 1, 'scheduler/dequeued/memory': 1, 'scheduler/enqueued': 1, 'scheduler/enqueued/memory': 1, 'start_time': datetime.datetime(2017, 11, 6, 8, 28, 20, 834393)} 2017-11-06 16:28:21 [scrapy.core.engine] INFO: Spider closed (finished)

解决方法：

在settings.py文件中添加请求头：

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