~~~ //using System.IO; //using System.Text; //using System.Net; //using System.Net.Security; //using System.Security.Cryptography.X509Certificates; private const String host = "http://www.api51.cn"; private const String path = "/api/smsApi/send"; private const String method = "POST"; static void Main(string[] args) { String querys = ""; String bodys = "mobile=13288888888&params=1024%2C%E5%BC%A0%E4%B8%89&sign=%E7%BD%91%E6%9E%81%E7%A7%91%E6%8A%80&token=token&tpl_id=46792"; String url = host + path; HttpWebRequest httpRequest = null; HttpWebResponse httpResponse = null; if (0 < querys.Length) { url = url + "?" + querys; } if (host.Contains("https://")) { ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); httpRequest = (HttpWebRequest)WebRequest.CreateDefault(new Uri(url)); } else { httpRequest = (HttpWebRequest)WebRequest.Create(url); } httpRequest.Method = method; //根据API的要求，定义相对应的Content-Type httpRequest.ContentType = "application/x-www-form-urlencoded; charset=UTF-8"; if (0 < bodys.Length) { byte[] data = Encoding.UTF8.GetBytes(bodys); using (Stream stream = httpRequest.GetRequestStream()) { stream.Write(data, 0, data.Length); } } try { httpResponse = (HttpWebResponse)httpRequest.GetResponse(); } catch (WebException ex) { httpResponse = (HttpWebResponse)ex.Response; } Console.WriteLine(httpResponse.StatusCode); Console.WriteLine(httpResponse.Method); Console.WriteLine(httpResponse.Headers); Stream st = httpResponse.GetResponseStream(); StreamReader reader = new StreamReader(st, Encoding.GetEncoding("utf-8")); Console.WriteLine(reader.ReadToEnd()); Console.WriteLine("\n"); } public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true; } ~~~