如何在rails中打开URL?

require 'open-uri' 首先能够 open()

看到了吗 the docs 更多信息。

您应该使用Nokogiri这样的实用程序来解析返回的内容,如下所示:

(来自 Nokogiri site front page @ http://nokogiri.org/ )

require 'nokogiri'
require 'open-uri'

# Get a Nokogiri::HTML:Document for the page we’re interested in...

doc = Nokogiri::HTML(open('http://www.google.com/search?q=tenderlove'))

# Do funky things with it using Nokogiri::XML::Node methods...

# Search for nodes by css
doc.css('h3.r a.l').each do |link|
  puts link.content
end

<a href="http://some.link/">Some Link</a>