Rails:加号 GET-Request 被空格取代 [英] Rails: Plus sign in GET-Request replaced by space

问题描述

在 Rails 3 (Ruby 1.9.2) 中，我发送请求

In Rails 3 (Ruby 1.9.2) I send an request

 Started GET "/controller/action?path=/41_+"

但是参数列表是这样的:

But the parameter list looks like this:

 {"path"=>"/41_ ",
   "controller"=>"controller",
   "action"=>"action"}

这里出了什么问题?-、* 或 . 符号工作正常，只是 + 将被空格替换.

Whats going wrong here? The -, * or . sign works fine, its just the +which will be replaced by a space.

推荐答案

那是正常的 URL 编码，加号是空格的简写:

That's normal URL encoding, the plus sign is a shorthand for a space:

在查询字符串中，加号被保留为空格的速记符号.因此，必须对实数加号进行编码.此方法用于使查询 URI 更容易在不允许空格的系统中传递.

Within the query string, the plus sign is reserved as shorthand notation for a space. Therefore, real plus signs must be encoded. This method was used to make query URIs easier to pass in systems which did not allow spaces.

来自 HTML5 标准:

字符是 U+0020 空格字符
用单个 U+002B 加号字符 (+) 替换该字符.

The character is a U+0020 SPACE character
Replace the character with a single U+002B PLUS SIGN character (+).

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