Html 分隔 URL 中的值，而不是使用 &
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separating values in a URL, not with an &
提问by at.
Each parameter in a URL can have multiple values. How can I separate them? Here's an example:
URL 中的每个参数都可以有多个值。我怎样才能把它们分开？下面是一个例子：
http://www.example.com/search?queries=cars,phones
So I want to search for 2 different things: cars and phones (this is just a contrived example). The problem is the separator, a comma. A user could enter a comma in the search form as part of their query and then this would get screwed up. I could have 2 separate URL parameters:
所以我想搜索两种不同的东西：汽车和电话（这只是一个人为的例子）。问题是分隔符，一个逗号。用户可以在搜索表单中输入一个逗号作为查询的一部分，然后这会被搞砸。我可以有 2 个单独的 URL 参数：
http://www.example.com/login?name1=harry&name2=bob
There's no real problem there, in fact I think this is how URLs were designed to handle this situation. But I can't use it in my particular situation. Requires a separate long post to say why... I need to simply separate the values.
那里没有真正的问题，事实上我认为这就是 URL 被设计来处理这种情况的方式。但是我不能在我的特定情况下使用它。需要一个单独的长帖子来说明原因......我需要简单地将值分开。
My question is basically, is there a URL encodable character or value that can't possibly be entered in a form (textarea or input) which I can use as a separator? Like a null character? Or a non-visible character?
我的问题基本上是，是否存在无法以我可以用作分隔符的形式（文本区域或输入）输入的 URL 可编码字符或值？像一个空字符？还是一个不可见的角色？
UPDATE: thank you all for your very quick responses. I should've listed the same parameter name example too, but order matters in my case so that wasn't an option either. We solved this by using a %00 URL encoded character (UTF-8 \u0000) as a value separator.
更新：感谢大家的快速回复。我也应该列出相同的参数名称示例，但在我的情况下顺序很重要，所以这也不是一个选项。我们通过使用 %00 URL 编码字符 (UTF-8 \u0000) 作为值分隔符解决了这个问题。
回答by Quentin
The standard approach to this is to use the same key name twice.
对此的标准方法是两次使用相同的键名。
http://www.example.com/search?queries=cars&queries=phones
Most form libraries will allow you to access it as an array automatically. (If you are using PHP (and making use of $_POST/GETand not reinventing the wheel) you will need to change the name to queries[].)
大多数表单库将允许您自动将其作为数组访问。（如果您正在使用 PHP（并且使用$_POST/GET而不是重新发明轮子），则需要将名称更改为queries[].）
回答by Mark Cidade
Just URL-encode the user input so that their commas become %2C.
只需对用户输入进行 URL 编码，以便他们的逗号变为%2C。
回答by BalusC
You can give them each the sameparameter name.
您可以为它们每个提供相同的参数名称。
http://www.example.com/search?query=cars&query=phones
The average server side HTTP API is able to obtain them as an array. As per your question history, you're using JSP/Servlet, so you can use HttpServletRequest#getParameterValues()for this.
一般的服务器端 HTTP API 能够以数组的形式获取它们。根据您的问题历史，您使用的是 JSP/Servlet，因此您可以使用HttpServletRequest#getParameterValues()它。
String[] queries = request.getParameterValues("query");
回答by malonso
Why not just do something like "||"? Anyone who types that into a search area probably fell asleep on their keyboard :} Then just explode it on the backend.
为什么不做类似“||”的事情？任何在搜索区域中输入的人都可能在他们的键盘上睡着了 :} 然后在后端爆炸它。
回答by Rohrbs
Come up with your own separator that is unlikely to get entered in a query. Two underscores '__'for example.
想出你自己的分隔符，它不太可能被输入到查询中。'__'例如两个下划线。
回答by Vinay B R
easiest thing to do would be to use a custom separator like [!!ValSep!!].
最简单的方法是使用像 [!!ValSep!!] 这样的自定义分隔符。
