Scrapy - 爬取

说明

要执行您的爬取程序，请在您的 first_scrapy 目录中运行以下命令 −

scrapy crawl first

其中，first 是创建爬取程序时指定的爬取程序的名称。

一旦爬取程序开始爬取，您就可以看到以下输出 −

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，每个 URL 都有一个日志行，其中 (referer: None) 表明这些 URL 是起始 URL，并且没有引荐来源。接下来，您应该会看到在 first_scrapy 目录中创建了两个名为 Books.html 和 Resources.html 的新文件。