blocks|key|1566484|text|我不是.NET的人，但是，你不能使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1566485|HttpUtility.UrlEncode+Method+(String)|code-block|syntax|javascript|1566486|具体描述如下：|1566487|HttpUtility.UrlEncode+Method+(String)+on+MSDN|offset|length|1566488|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/4fkewx0t.aspx^0|0|0|0|0|19|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|X|8|@]|9|@$K|Y|L|Z|1|10]]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

I'm not a .NET guy, but, can't you use:

<pre><code>HttpUtility.UrlEncode Method (String)
</code></pre>

Which is described here:

<a href="http://msdn.microsoft.com/en-us/library/4fkewx0t.aspx" rel="noreferrer">HttpUtility.UrlEncode Method (String) on MSDN</a>

blocks|key|1781492|text|System.Web中的HttpUtility.UrlEncode("url")。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1781493|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

HttpUtility.UrlEncode("url") in System.Web.

blocks|key|1566583|text|使用静态HttpUtility.UrlEncode方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1566584|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

use the static HttpUtility.UrlEncode method.

blocks|key|1781558|text|你会想要使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1781559|System.Web.HttpUtility.urlencode("url")|code-block|syntax|javascript|1781560|确保将system.web作为项目中的引用之一。我不认为它默认包含在控制台应用程序中作为引用。|1781561|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You'll want to use 

<pre><code>System.Web.HttpUtility.urlencode("url")
</code></pre>

Make sure you have system.web as one of the references in your project. I don't think it's included as a reference by default in console applications.

blocks|key|1566702|text|我自己遇到了这个问题，而不是将System.Web程序集添加到我的项目中，我编写了一个用于编码/解码URL的类(它非常简单，我已经做了一些测试，但不是很多)。我已经包含了下面的源代码。请:如果你重用它，请把注释留在顶部，如果它坏了，不要责怪我，从代码中学习。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1566703|'''+<summary>
'''+URL+encoding+class.++Note:+use+at+your+own+risk.
'''+Written+by:+Ian+Hopkins+(http://www.lucidhelix.com)
'''+Date:+2008-Dec-23
'''+</summary>
Public+Class+UrlHelper
++++Public+Shared+Function+Encode(ByVal+str+As+String)+As+String
++++++++Dim+charClass+=+String.Format("0-9a-zA-Z{0}",+Regex.Escape("-_.!~*'()"))
++++++++Dim+pattern+=+String.Format("[%5E{0}]",+charClass)
++++++++Dim+evaluator+As+New+MatchEvaluator(AddressOf+EncodeEvaluator)

++++++++'+replace+the+encoded+characters
++++++++Return+Regex.Replace(str,+pattern,+evaluator)
++++End+Function

++++Private+Shared+Function+EncodeEvaluator(ByVal+match+As+Match)+As+String
++++'+Replace+the+"+"s+with+"%2B"s
++++++++If+(match.Value+=+"+")+Then
++++++++++++Return+"%2B"
++++++++End+If
++++++++Return+String.Format("%25{0:X2}",+Convert.ToInt32(match.Value.Chars(0)))
++++End+Function

++++Public+Shared+Function+Decode(ByVal+str+As+String)+As+String
++++++++Dim+evaluator+As+New+MatchEvaluator(AddressOf+DecodeEvaluator)

++++++++'+Replace+the+"%2B"s+with+"+"s
++++++++str+=+str.Replace("%2B"c,+"+"c)

++++++++'+Replace+the+encoded+characters
++++++++Return+Regex.Replace(str,+"%25[0-9a-zA-Z][0-9a-zA-Z]",+evaluator)
++++End+Function

++++Private+Shared+Function+DecodeEvaluator(ByVal+match+As+Match)+As+String
++++++++Return+""+%2B+Convert.ToChar(Integer.Parse(match.Value.Substring(1),+System.Globalization.NumberStyles.HexNumber))
++++End+Function
End+Class|code-block|syntax|javascript|1566704|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I ran into this problem myself, and rather than add the System.Web assembly to my project, I wrote a class for encoding/decoding URLs (its pretty simple, and I've done some testing, but not a lot). I've included the source code below. Please: leave the comment at the top if you reuse this, don't blame me if it breaks, learn from the code.

<pre><code>''' &lt;summary&gt;
''' URL encoding class. Note: use at your own risk.
''' Written by: Ian Hopkins (http://www.lucidhelix.com)
''' Date: 2008-Dec-23
''' &lt;/summary&gt;
Public Class UrlHelper
 Public Shared Function Encode(ByVal str As String) As String
 Dim charClass = String.Format("0-9a-zA-Z{0}", Regex.Escape("-_.!~*'()"))
 Dim pattern = String.Format("[^{0}]", charClass)
 Dim evaluator As New MatchEvaluator(AddressOf EncodeEvaluator)

 ' replace the encoded characters
 Return Regex.Replace(str, pattern, evaluator)
 End Function

 Private Shared Function EncodeEvaluator(ByVal match As Match) As String
 ' Replace the " "s with "+"s
 If (match.Value = " ") Then
 Return "+"
 End If
 Return String.Format("%{0:X2}", Convert.ToInt32(match.Value.Chars(0)))
 End Function

 Public Shared Function Decode(ByVal str As String) As String
 Dim evaluator As New MatchEvaluator(AddressOf DecodeEvaluator)

 ' Replace the "+"s with " "s
 str = str.Replace("+"c, " "c)

 ' Replace the encoded characters
 Return Regex.Replace(str, "%[0-9a-zA-Z][0-9a-zA-Z]", evaluator)
 End Function

 Private Shared Function DecodeEvaluator(ByVal match As Match) As String
 Return "" + Convert.ToChar(Integer.Parse(match.Value.Substring(1), System.Globalization.NumberStyles.HexNumber))
 End Function
End Class
</code></pre>

blocks|key|1781712|text|Ian+Hopkins的代码为我完成了这项工作，而无需添加对System.Web的引用。对于那些不使用VB.NET的人，这里有一个到C#的端口：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1781713|///+<summary>
///+URL+encoding+class.++Note:+use+at+your+own+risk.
///+Written+by:+Ian+Hopkins+(http://www.lucidhelix.com)
///+Date:+2008-Dec-23
///+(Ported+to+C#+by+t3rse+(http://www.t3rse.com))
///+</summary>
public+class+UrlHelper
{
++++public+static+string+Encode(string+str)+{
++++++++var+charClass+=+String.Format("0-9a-zA-Z{0}",+Regex.Escape("-_.!~*'()"));
++++++++return+Regex.Replace(str,+
++++++++++++String.Format("[%5E{0}]",+charClass),
++++++++++++new+MatchEvaluator(EncodeEvaluator));
++++}

++++public+static+string+EncodeEvaluator(Match+match)
++++{
++++++++return+(match.Value+==+"+")?"%2B"+:+String.Format("%25{0:X2}",+Convert.ToInt32(match.Value[0]));
++++}

++++public+static+string+DecodeEvaluator(Match+match)+{
++++++++return+Convert.ToChar(int.Parse(match.Value.Substring(1),+System.Globalization.NumberStyles.HexNumber)).ToString();
++++}

++++public+static+string+Decode(string+str)+
++++{
++++++++return+Regex.Replace(str.Replace('%2B',+'+'),+"%25[0-9a-zA-Z][0-9a-zA-Z]",+new+MatchEvaluator(DecodeEvaluator));
++++}
}|code-block|syntax|javascript|1781714|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The code from Ian Hopkins does the trick for me without having to add a reference to System.Web. Here is a port to C# for those who are not using VB.NET: 

<pre><code>/// &lt;summary&gt;
/// URL encoding class. Note: use at your own risk.
/// Written by: Ian Hopkins (http://www.lucidhelix.com)
/// Date: 2008-Dec-23
/// (Ported to C# by t3rse (http://www.t3rse.com))
/// &lt;/summary&gt;
public class UrlHelper
{
 public static string Encode(string str) {
 var charClass = String.Format("0-9a-zA-Z{0}", Regex.Escape("-_.!~*'()"));
 return Regex.Replace(str, 
 String.Format("[^{0}]", charClass),
 new MatchEvaluator(EncodeEvaluator));
 }

 public static string EncodeEvaluator(Match match)
 {
 return (match.Value == " ")?"+" : String.Format("%{0:X2}", Convert.ToInt32(match.Value[0]));
 }

 public static string DecodeEvaluator(Match match) {
 return Convert.ToChar(int.Parse(match.Value.Substring(1), System.Globalization.NumberStyles.HexNumber)).ToString();
 }

 public static string Decode(string str) 
 {
 return Regex.Replace(str.Replace('+', ' '), "%[0-9a-zA-Z][0-9a-zA-Z]", new MatchEvaluator(DecodeEvaluator));
 }
}
</code></pre>

blocks|key|1566825|text|使用System.Net命名空间中的WebUtility.UrlEncode(string)|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1566826|entityMap^0|2|A|I|S|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Use <code>WebUtility.UrlEncode(string)</code> from <code>System.Net</code> namespace

blocks|key|1781795|text|最好的方法是添加对System.web..dll的引用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1781796|并使用var+EncodedUrl=System.Web.HttpUtility.UrlEncode("URL_TEXT")；|1781797|您可以在System.web.dll上找到该文件|offset|length|1781798|entityMap|0|LINK|mutability|MUTABLE|url|http://originaldll.com/download/11019.dll^0|0|0|4|E|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Best thing is to Add Reference to System.web..dll

and use 
var EncodedUrl=System.Web.HttpUtility.UrlEncode("URL_TEXT");

You can find the File at <a href="http://originaldll.com/download/11019.dll" rel="nofollow noreferrer">System.web.dll</a>

blocks|key|1781847|text|不应该使用Uri.EscapeUriString来转义要在URL中传递的字符串，因为它不会像您预期的那样对所有字符进行编码。'%2B‘就是一个很好的例子，它没有被转义。然后将其转换为URL中的空格，因为这就是它在简单URI中的含义。显然，当您尝试在URL中传递类似于base64编码的字符串时，这会导致大量的问题，并且在接收端的字符串上会出现空格。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1781848|您可以使用HttpUtility.UrlEncode并将所需的引用添加到您的项目中(如果您正在与web应用程序通信，那么我认为您没有理由不这样做)。|1781849|或者，在Uri.EscapeUriString上使用Uri.EscapeDataString，正如这里很好地解释的那样：https://stackoverflow.com/a/34189188/7391|offset|length|1781850|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/34189188/7391^0|0|0|1O|15|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Uri.EscapeUriString should not be used for escaping a string to be passed in a URL as it does not encode all characters as you might expect. The '+' is a good example which is not escaped. This then gets converted to a space in the URL since this is what it means in a simple URI. Obviously that causes massive issues the minute you try and pass something like a base 64 encoded string in the URL and spaces appear all over your string at the receiving end.

You can use HttpUtility.UrlEncode and add the required references to your project (and if you're communicating with a web application then I see no reason why you shouldn't do this).

Alternatively use Uri.EscapeDataString over Uri.EscapeUriString as explained very well here: <a href="https://stackoverflow.com/a/34189188/7391">https://stackoverflow.com/a/34189188/7391</a>

Normally I would just use:

<pre><code>HttpContext.Current.Server.UrlEncode("url");
</code></pre>

But since this is a console application, <code>HttpContext.Current</code> is always going to be <code>null</code>.

Is there another method that does the same thing that I could use?

UrlEncode through a console application?

通常我只会使用：HttpContext.Current.Server.UrlEncode("url");但由于这是一个控制台应用程序，因此HttpContext.Current将始终为null。有没有其他方法可以用来做同样的事情呢？

问通过控制台应用程序进行UrlEncode？
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