using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Net.Security; 
using System.Security.Cryptography.X509Certificates; 
using System.Net; 
using System.IO; 
using System.IO.Compression; 
using System.Text.RegularExpressions; 
using System.Security.Cryptography;
using System.Web;
public class Test
{
    private static readonly string DefaultUserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)"; 
 
    private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) 
    { 
      return true; //总是接受   
    } 
   static void Main(string[] args) 
    { 
      DateTime dt = DateTime.Now; 
      string mttime = dt.ToString("yyyyMMddHHmmss");
      string pwd1 = "*************"+mttime;
   string pwd = GetMD5(pwd1)
      string content = "【阅信】验证码888888，打死也不能告诉别人哦。";
      string url = "http://183.203.28.226:9000/HttpSmsMt"; 
      Encoding encoding = Encoding.GetEncoding("utf-8"); 
      IDictionary<string, string> parameters = new Dictionary<string, string>(); 
      parameters.Add("name", "****"); 
      parameters.Add("pwd", pwd); 
      parameters.Add("content",content);
      parameters.Add("phone","13381272353");
      parameters.Add("subid","");
      parameters.Add("mttime", mttime); 
      HttpWebResponse response = CreatePostHttpResponse(url,parameters,encoding); 
      //打印返回值 
      Stream stream = response.GetResponseStream();  //获取响应的字符串流 
      StreamReader sr = new StreamReader(stream); //创建一个stream读取流 
      string html = sr.ReadToEnd();  //从头读到尾，放到字符串html 
      Console.WriteLine(html);  
    }
      public static string GetMD5(string myString) 
    {
      MD5 md5 = new MD5CryptoServiceProvider();
      // byte[] fromData = System.Web.HttpUtility.UrlEncode.GetBytes(myString);
      byte[] fromData = Encoding.Default.GetBytes(myString);
      byte[] targetData = md5.ComputeHash(fromData);
      string byte2String = null;
      for(int i=0;i<targetData.Length;i++) 
      {
        byte2String+= targetData[i].ToString("x");
      }
      return byte2String;
    } 
      public static HttpWebResponse CreatePostHttpResponse(string url, IDictionary<string, string> parameters,Encoding charset) 
    { 
      HttpWebRequest request = null; 
      //HTTPSQ请求 
      ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); 
      request = WebRequest.Create(url) as HttpWebRequest; 
      request.ProtocolVersion = HttpVersion.Version10; 
      request.Method = "POST"; 
      request.ContentType = "application/x-www-form-urlencoded"; 
      request.UserAgent = DefaultUserAgent; 
      //如果需要POST数据   
      if (!(parameters == null || parameters.Count == 0)) 
      { 
        StringBuilder buffer = new StringBuilder(); 
        int i = 0; 
        foreach (string key in parameters.Keys) 
        { 
          if (i > 0) 
          { 
            buffer.AppendFormat("&{0}={1}", key, parameters[key]); 
          } 
          else 
          { 
            buffer.AppendFormat("{0}={1}", key, parameters[key]); 
          } 
          i++; 
        } 
        byte[] data = charset.GetBytes(buffer.ToString()); 
        using (Stream stream = request.GetRequestStream()) 
        { 
          stream.Write(data, 0, data.Length); 
        } 
      } 
      return request.GetResponse() as HttpWebResponse; 
    } 
}