追加值查询字符串 [英] Append values to query string

问题描述

我已经在列表中设置URL的类似于以下的人的

I have set of URL's similar to the ones below in a list

• 的http://somesite.com/backup/lol.php?id=1&ser​​ver=4&location=us


• http://somesite.com/news.php?article= 1安培;郎= EN

• http://somesite.com/backup/lol.php?id=1&server=4&location=us
• http://somesite.com/news.php?article=1&lang=en

我设法使用下面的代码来获取查询字符串：

I have managed to get the query strings using the following code:

myurl = longurl.Split('?');
NameValueCollection qs = HttpUtility.ParseQueryString(myurl [1]);

foreach (string lol in qs)
{
    // results will return
}

但它只返回像
ID 服务器 位置的参数等的基础上提供的网址。

But it only returns the parameters like id, server, location and so on based on the URL provided.

我需要的是添加/追加值，以现有的查询字符串。

What I need is to add / append values to the existing query strings.

例如用网址：

的 http://somesite.com/backup/index.php?action=login&attempts=1

我需要改变的值查询字符串参数：

I need to alter the values of the query string parameters:

行动= login1

尝试= 11

正如你所看到的，我已经追加1的每个值。我需要从与他们不同的查询字符串的字符串得到一组URL的和值添加到结尾&放各项参数;再次将它们添加到列表中。

As you can see, I have appended "1" for each value. I need to get a set of URL's from a string with different query strings in them and add a value to each parameter at the end & again add them to a list.

推荐答案

您可以使用的 HttpUtility.ParseQueryString 方法和的 UriBuilder 它提供了一个很好的方式与查询字符串参数工作，而不必担心这样的事情解析，网址编码，...：

You could use the HttpUtility.ParseQueryString method and an UriBuilder which provides a nice way to work with query string parameters without worrying about things like parsing, url encoding, ...:

string longurl = "http://somesite.com/news.php?article=1&lang=en";
var uriBuilder = new UriBuilder(longurl);
var query = HttpUtility.ParseQueryString(uriBuilder.Query);
query["action"] = "login1";
query["attempts"] = "11";
uriBuilder.Query = query.ToString();
longurl = uriBuilder.ToString();
// "http://somesite.com:80/news.php?article=1&lang=en&action=login1&attempts=11"

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