C# 如何替换 URL 中的特殊字符？
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How do I replace special characters in a URL?
提问by BFree
This is probably very simple, but I simply cannot find the answer myself :(
这可能很简单，但我自己根本找不到答案:(
Basicaly, what I want is, given this string:
基本上，我想要的是，给定这个字符串：
"http://www.google.com/search?hl=en&q=c#objects"
" http://www.google.com/search?hl=en&q=c#对象"
I want this output:
我想要这个输出：
http://www.google.com/search?hl=en&q=c%23+objects
http://www.google.com/search?hl=en&q=c%23+objects
I'm sure there's some helper class somewhere buried in the Framework that takes care of that for me, but I'm having trouble finding it.
我确信框架中的某个地方有一些帮助类可以为我处理这个问题，但是我找不到它。
EDIT: I should add, that this is for a Winforms App.
编辑：我应该补充一点，这是针对 Winforms 应用程序的。
采纳答案by Wilfred Knievel
HttpServerUtility.UrlEncode(string)
HttpServerUtility.UrlEncode(string)
Should sort out any troublesome characters
应该整理出任何麻烦的字符
To use it you'll need to add a reference to System.Web (Project Explorer > References > Add reference > System.Web)
要使用它，您需要添加对 System.Web 的引用（Project Explorer > References > Add reference > System.Web）
Once you've done that you can use it to encode any items you wish to add to the querystring:
完成后，您可以使用它来编码您希望添加到查询字符串的任何项目：
System.Web.HttpUtility.UrlEncode("c# objects");
回答by Amy
回答by dthrasher
@Wilfred Knievel has the accepted answer, but you could also use Uri.EscapeUriString()if you wanted to avoid the dependency on the System.Webnamespace.
@Wilfred Knievel 有公认的答案，但Uri.EscapeUriString()如果您想避免对System.Web命名空间的依赖，也可以使用。
回答by Shiv Kumar
If you don't want a dependency on System.Web here is an implementation of "UrlEncode" I have in my C# OAuth Library (which requires a correct implementation - namely spaces should be encoded using percent encoding rather the "+" for spaces etc.)
如果您不想依赖 System.Web，这里是我在 C# OAuth 库中的“UrlEncode”的实现（这需要正确的实现 - 即空格应该使用百分比编码而不是空格等的“+”进行编码） .)
private readonly static string reservedCharacters = "!*'();:@&=+$,/?%#[]";
public static string UrlEncode(string value)
{
if (String.IsNullOrEmpty(value))
return String.Empty;
var sb = new StringBuilder();
foreach (char @char in value)
{
if (reservedCharacters.IndexOf(@char) == -1)
sb.Append(@char);
else
sb.AppendFormat("%{0:X2}", (int)@char);
}
return sb.ToString();
}
For reference http://en.wikipedia.org/wiki/Percent-encoding
