如何在使用Ruby mechanize加载页面之前设置Referer标头？

问题描述

使用Mechanize 2.3设置自定义标头有直接的方法吗？

Is there a straightforward way to set custom headers with Mechanize 2.3?

我试过但得到：

$agent = Mechanize.new
$agent.pre_connect_hooks << lambda { |p|
  p[:request]['Referer'] = 'https://wwws.mysite.com/cgi-bin/apps/Main'
}

# ./mech.rb:30:in `<main>': undefined method `pre_connect_hooks' for nil:NilClass (NoMethodError)

推荐答案

对于这个问题，我注意到人们似乎在使用：

For this question I noticed people seem to use:

page = agent.get("http://www.you.com/index_login/", :referer => "http://www.you.com/")

顺便说一句，现在我测试了这个答案，似乎这不是我实际问题背后的问题：每次访问我正在抓取的网站都需要尽管我总是以yaml格式加载并保存完整的cookie jar，但是在第一次登录访问后几秒钟再次浏览登录序列页面。但这当然会导致另一个问题。

As an aside, now that I tested this answer, it seems this was not the issue behind my actual problem: that every visit to a site I'm scraping requires going through the login sequence pages again, even seconds later after the first logged-in visit, despite that I'm always loading and saving the complete cookie jar in yaml format. But that would lead to another question of course.

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