Scrapy – 爬行

描述

要执行您的蜘蛛，请在您的first_scrapy目录中运行以下命令–

scrapy crawl first

其中，first是创建蜘蛛时指定的蜘蛛的名称。

蜘蛛爬行后，您可以看到以下输出 –

2016-08-09 18:13:07-0400 [scrapy] INFO: Scrapy started (bot: tutorial)
2016-08-09 18:13:07-0400 [scrapy] INFO: Optional features available: ...
2016-08-09 18:13:07-0400 [scrapy] INFO: Overridden settings: {}
2016-08-09 18:13:07-0400 [scrapy] INFO: Enabled extensions: ...
2016-08-09 18:13:07-0400 [scrapy] INFO: Enabled downloader middlewares: ...
2016-08-09 18:13:07-0400 [scrapy] INFO: Enabled spider middlewares: ...
2016-08-09 18:13:07-0400 [scrapy] INFO: Enabled item pipelines: ...
2016-08-09 18:13:07-0400 [scrapy] INFO: Spider opened
2016-08-09 18:13:08-0400 [scrapy] DEBUG: Crawled (200) 
<GET http://www.dmoz.org/Computers/Programming/Languages/Python/Resources/> (referer: None)
2016-08-09 18:13:09-0400 [scrapy] DEBUG: Crawled (200) 
<GET http://www.dmoz.org/Computers/Programming/Languages/Python/Books/> (referer: None)
2016-08-09 18:13:09-0400 [scrapy] INFO: Closing spider (finished)

正如您在输出中看到的那样，对于每个 URL，都有一个日志行，其中(referer: None)指出 URL 是起始 URL，并且它们没有引用。接下来，您应该会看到在您的first_scrapy目录中创建了两个名为Books.html和Resources.html 的新文件。