在Ruby/Rails中，如何在URL中编码/转义特殊字符? [英] In Ruby/Rails, how can I encode/escape special characters in URLs?

问题描述

在使用OpenURI进行open(url)之前，如何编码或转义" URL?

How do I encode or 'escape' the URL before I use OpenURI to open(url)?

我们正在使用OpenURI打开远程URL并返回xml:

We're using OpenURI to open a remote url and return the xml:

getresult = open(url).read

问题是URL包含一些用户输入的文本，其中包含空格和其他字符，包括"+"，&"，?"等，因此，我们需要安全地转义URL.在使用Net :: HTTP时，我看到了很多示例，但没有为OpenURI找到任何示例.

The problem is the URL contains some user-input text that contains spaces and other characters, including "+", "&", "?", etc. potentially, so we need to safely escape the URL. I saw lots of examples when using Net::HTTP, but have not found any for OpenURI.

我们还需要能够转义从会话变量中收到的类似字符串，因此我们需要倒数功能.

We also need to be able to un-escape a similar string we receive in a session variable, so we need the reciprocal function.

推荐答案

Ruby具有内置的可寻址 gem，尤其是可寻址:: URI

Ruby has the built-in URI library, and the Addressable gem, in particular Addressable::URI

我更喜欢Addressable :: URI.它功能齐全，可以在使用query_values=方法时为您处理编码.

I prefer Addressable::URI. It's very full featured and handles the encoding for you when you use the query_values= method.

我已经看到一些有关URI的讨论，这些讨论正在经历越来越多的痛苦，因此我倾向于不理会URI，以便处理编码/转义，直到这些事情得到解决为止:

I've seen some discussions about URI going through some growing pains so I tend to leave it alone for handling encoding/escaping until these things get sorted out:

• http://osdir.com/ml/ruby-core/2010-06/msg00324.html
• http://osdir.com/ml/lang- ruby-core/2009-06/msg00350.html
• http://osdir.com/ml/ruby-core/2011-06/msg00748.html

• http://osdir.com/ml/ruby-core/2010-06/msg00324.html
• http://osdir.com/ml/lang-ruby-core/2009-06/msg00350.html
• http://osdir.com/ml/ruby-core/2011-06/msg00748.html

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