http://sipdev.alisoft.com/sip/rest?sip_appkey=22875 
&sip_apiname=alisoft.validateUser 
&sip_timestamp=2008-10-28 20:00:00
&sip_sign=23ed99f1a0a1eac5f3787d522afde1c4 
&userId=12176230 
&appId=22875  
&appInstanceId=USERFB4B11067FC25455E32AC4F039B2CD38
&token= A2842BC81AE060C067017336B894F1B6E9AA7A8ED137A91903D1

﹤?xml version="1.0" encoding="utf-8" ?﹥
﹤String﹥1﹤/String﹥

﹤%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %﹥

﹤!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
               "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"﹥

﹤html xmlns="http://www.w3.org/1999/xhtml"﹥
﹤head runat="server"﹥
    ﹤title﹥阿里旺旺軟件平臺HelloWorld示例﹤/title﹥
﹤/head﹥
﹤body﹥
    ﹤asp:Label ID="helloText" runat="server"﹥﹤/asp:Label﹥
﹤/body﹥
﹤/html﹥

using System;
using System.Web;
using System.Security.Cryptography;
using System.Text;
using System.Net;
using System.Xml;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //準備調用參數：
        string userId = Request.Params["user_id"];
        string appId = Request.Params["app_id"];
        string appInstanceId = Request.Params["app_instance_id"];
        string token = Request.Params["token"];

        string sip_appkey = appId;
        string sip_apiname = "alisoft.validateUser";
        string sip_timestamp = DateTime.Now.ToString();

        string data = "9c4fb3400ed711de80b8836e34b2dea8";   //CERT_CODE(注冊軟件時獲得的)

        //在CERT_CODE之后，按參數名字母順序將參數名及其值拼接起來，用以對所有參數簽名：
        data += "appId" + appId;
        data += "appInstanceId" + appInstanceId;
        data += "sip_apiname" + sip_apiname;
        data += "sip_appkey" + sip_appkey;
        data += "sip_timestamp" + sip_timestamp;
        data += "token" + token;
        data += "userId" + userId;

        //用MD5算法對調用參數進行簽名：
        MD5CryptoServiceProvider MD5 = new MD5CryptoServiceProvider();
        string sip_sign = BitConverter.ToString(MD5.ComputeHash(Encoding.UTF8.GetBytes(data)));
        sip_sign = sip_sign.Replace("-", "");   //一定要去除結果中的“-”！

        //拼裝調用參數：
        string api_params = "sip_appkey=" + sip_appkey + "&sip_apiname=" + sip_apiname + 
               "&sip_timestamp=" + sip_timestamp + "&sip_sign=" + sip_sign + "&userId=" + userId +
                 "&appId=" + appId + "&appInstanceId=" + appInstanceId + "&token=" + token;

        //發出對阿里旺旺軟件平臺的WEB調用：
        WebRequest request = WebRequest.Create("http://sipdev.alisoft.com/sip/rest?" + api_params);
        request.Method = "POST";
        request.ContentType = "application/x-www-form-urlencoded";
        WebResponse response = request.GetResponse();

        //根據返回結果進行相應處理
        if (response.Headers.Get("sip_status") == "9999")   //調用平臺成功
        {
            XmlDocument xml = new XmlDocument();
            xml.Load(response.GetResponseStream());
            switch (int.Parse(xml.SelectSingleNode("String").InnerText))
            {
                case 0:  say("HelloWorld，歡迎合法使用者！"); break;
                case 1: say(sip_sign + "HelloWorld，歡迎合法訂購者！"); break;
                case -1: say("尚未訂購或被授權使用本軟件！"); break;
                case -2: say("非法使用，拒絕提供軟件服務！"); break;
                default: say("調用參數可能出現錯誤！"); break;
            };
        }
        else
            say("調用阿里旺旺軟件平臺失敗！");
    }

    private void say(string text)
    {
        helloText.Text = text;  //helloText是一個ASP.NET的Label控件
    }
}

﹤system.net﹥
    ﹤settings﹥
      ﹤httpWebRequest useUnsafeHeaderParsing="true"/﹥
    ﹤/settings﹥
  ﹤/system.net﹥