System.Uri构造函数坚持将%2f序列转义为foward斜杠,当它在URL的路径部分中看到它们时。我怎么能避免这种行为?
我已经在这个问题上看过Connect票,但据我所知,解决办法对于.net 4不起作用。
答案 0 :(得分:6)
它在内部保留原始字符串,例如,以下代码:
Uri u = new Uri("http://www.example.com/path?var=value%2fvalue");
Console.WriteLine(u.OriginalString);
将显示
http://www.example.com/path?var=value%2fvalue
编辑:我已更新Connect Link Workaround中最新.NET版本的代码。这是:
// System.UriSyntaxFlags is internal, so let's duplicate the flag privately
private const int UnEscapeDotsAndSlashes = 0x2000000;
private const int SimpleUserSyntax = 0x20000;
public static void LeaveDotsAndSlashesEscaped(Uri uri)
{
if (uri == null)
throw new ArgumentNullException("uri");
FieldInfo fieldInfo = uri.GetType().GetField("m_Syntax", BindingFlags.Instance | BindingFlags.NonPublic);
if (fieldInfo == null)
throw new MissingFieldException("'m_Syntax' field not found");
object uriParser = fieldInfo.GetValue(uri);
fieldInfo = typeof(UriParser).GetField("m_Flags", BindingFlags.Instance | BindingFlags.NonPublic);
if (fieldInfo == null)
throw new MissingFieldException("'m_Flags' field not found");
object uriSyntaxFlags = fieldInfo.GetValue(uriParser);
// Clear the flag that we don't want
uriSyntaxFlags = (int)uriSyntaxFlags & ~UnEscapeDotsAndSlashes;
uriSyntaxFlags = (int)uriSyntaxFlags & ~SimpleUserSyntax;
fieldInfo.SetValue(uriParser, uriSyntaxFlags);
}
当然,这是一个黑客攻击,所以你应该自担风险使用它: - )
答案 1 :(得分:3)
正如我在this question中发布的那样,您可以通过配置禁用此行为:
<configuration>
<uri>
<schemeSettings>
<add name="http" genericUriParserOptions="DontUnescapePathDotsAndSlashes"/>
</schemeSettings>
</uri>
</configuration>
答案 2 :(得分:1)
在构建新URI之前尝试URI.EscapeUriString
。它使%2F
看起来像%252F
,在我的情况下它的工作正常。