远程请求API xml 属性中有“+” 对方收到是空格
远程请求API xml 属性中有“+” 对方收到是空格
如
<abc type="abc+def">
 abc
</abc>

但是对方收到的是
<abc type="abc def">
 abc
</abc>

“+”变成了空格
一下是我的Http请求代码

  public static string PostXml(string url, string Method, string xml)

       {

           string ResponseResult = "";

           string para = "xml=" + xml;

           HttpWebRequest request = null;

           if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))

           {

               ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);

               request = WebRequest.Create(url) as HttpWebRequest;

               //request.ProtocolVersion = HttpVersion.Version10;

              

           }

           else

           {

               request = WebRequest.Create(url) as HttpWebRequest;//创建一个请求

               

           }

           request.KeepAlive = false;

           request.Method = Method;

           WebHeaderCollection webHead = new WebHeaderCollection();

           webHead.Add("Accept-Encoding:gzip,deflate");

           request.Headers = webHead;

           request.Accept = "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2";

           request.ContentType = "application/x-www-form-urlencoded";

         

           Stream st = null;

           if (Method == "POST")

           {

              

               byte[] data = Encoding.UTF8.GetBytes(para);

               request.ContentLength = data.Length;

     &