我试图写一个windows客户端应用程序，调用一个网站的数据。为了使安装最小化，我尝试只使用。net框架客户端配置文件中的dll。麻烦的是，我需要UrlEncode一些参数，有没有一个简单的方法来做到这一点，而不导入System.Web.dll，这不是客户端Pofile的一部分?
当前回答
System.Net.WebUtility.HtmlDecode
其他回答
System.Uri.EscapeUriString()对于某些字符可能会有问题，对我来说，它是字符串中的数字/磅“#”符号。
如果这对你来说是个问题，试试:
System.Uri.EscapeDataString() //Works excellent with individual values
下面是一个SO问题的答案，解释了两者的区别:
EscapeUriString和EscapeDataString的区别是什么?
并建议在任何方面使用Uri.EscapeDataString()。
下面是一个发送POST请求的例子，使用application/x-www-form-urlencoded内容类型正确编码参数:
using (var client = new WebClient())
{
var values = new NameValueCollection
{
{ "param1", "value1" },
{ "param2", "value2" },
};
var result = client.UploadValues("http://foo.com", values);
}
你可以使用
Uri。EscapeUriString(参见http://msdn.microsoft.com/en-us/library/system.uri.escapeuristring.aspx)
UrlEncode不使用系统。网络:
String s = System.Net.WebUtility.UrlEncode(str);
//fix some different between WebUtility.UrlEncode and HttpUtility.UrlEncode
s = Regex.Replace(s, "(%[0-9A-F]{2})", c => c.Value.ToLowerInvariant());
更多的细节: https://www.samnoble.co.uk/2014/05/21/beware-webutility-urlencode-vs-httputility-urlencode/
我已经被迫在我构建的一些项目中使用。net 4.0，由于这个原因，WebUtility和HttpUtility都不包含这些。我使用了Uri.EscapeDataString()方法，它工作得非常好，但我不喜欢它没有编码所有标准特殊字符的事实(意思是!"#$%&'()*+，-./:;<=>?@[\]^_ ' {|}~)我也更多地使用Visual Basic而不是c#，所以我不确定要转换下面的内容需要什么，但它非常适合我的基本需求。
我不会处理任何UTF-8格式的字符串，因为它只用于一些非常基本的文本操作，到目前为止对我来说已经很好了。它不会以任何方式解析换行符(我正在操作的文本不会有换行符)，您必须首先处理%符号，以防止它破坏其余符号的编码。有点花哨，但很管用。
Function EncodeURL(ByVal DecodedString As String) As String
DecodedString = Replace(DecodedString, "%", "%25", 1, vbTextCompare)
DecodedString = Replace(DecodedString, " ", "%20", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "!", "%21", 1, vbTextCompare)
DecodedString = Replace(DecodedString, """", "%22", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "#", "%23", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "$", "%24", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "&", "%26", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "'", "%27", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "(", "%28", 1, vbTextCompare)
DecodedString = Replace(DecodedString, ")", "%29", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "*", "%2A", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "+", "%2B", 1, vbTextCompare)
DecodedString = Replace(DecodedString, ",", "%2C", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "-", "%2D", 1, vbTextCompare)
DecodedString = Replace(DecodedString, ".", "%2E", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "/", "%2F", 1, vbTextCompare)
DecodedString = Replace(DecodedString, ":", "%3A", 1, vbTextCompare)
DecodedString = Replace(DecodedString, ";", "%3B", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "<", "%3C", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "=", "%3D", 1, vbTextCompare)
DecodedString = Replace(DecodedString, ">", "%3E", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "?", "%3F", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "@", "%40", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "[", "%5B", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "\", "%5C", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "]", "%5D", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "^", "%5E", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "_", "%5F", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "`", "%60", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "{", "%7B", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "|", "%7C", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "}", "%7D", 1, vbTextCompare)
DecodedString = Replace(DecodedString, "~", "%7E", 1, vbTextCompare)
EncodeURL = DecodedString
End Function
输入:
! "#$%&'()*+,-./:;<=>?@[]^_`{|}~
输出
%21%20%22%23%24%25%26%27%28%29%2A%2B%2C%2D%2E%2F%3A%3B%3C%3D%3E%3F%40%5B%5C%5D%5E%5F%60%7B%7C%7D%7E
