u010253875的博客

便宜， using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Text; using System.Security.Cryptography; using System.Collections.Specialized; using System.IO; using System.Data.SqlClient; using System.Data.OleDb; using System.Net; public partial class Alipay_Notify : System.Web.UI.Page { /// <summary> /// created by sunzhizhi 2006.5.21,[email protected]。 /// </summary> public static string GetMD5(string s) { /// <summary> /// 与ASP兼容的MD5加密算法 /// </summary> MD5 md5 = new MD5CryptoServiceProvider(); byte[] t = md5.ComputeHash(Encoding.GetEncoding("gb2312").GetBytes(s)); StringBuilder sb = new StringBuilder(32); for (int i = 0; i < t.Length; i++) { sb.Append(t[i].ToString("x").PadLeft(2, '0')); } return sb.ToString(); } public static string[] BubbleSort(string[] r) { /// <summary> /// 冒泡排序法 /// </summary> int i, j; //交换标志 string temp; bool exchange; for (i = 0; i < r.Length; i++) //最多做R.Length-1趟排序 { exchange = false; //本趟排序开始前，交换标志应为假 for (j = r.Length - 2; j >= i; j--) { if (System.String.CompareOrdinal(r[j + 1], r[j]) < 0)　//交换条件 { temp = r[j + 1]; r[j + 1] = r[j]; r[j] = temp; exchange = true; //发生了交换，故将交换标志置为真 } } if (!exchange) //本趟排序未发生交换，提前终止算法 { break; } } return r; } //获取远程服务器ATN结果 public String Get_Http(String a_strUrl, int timeout) { string strResult; try { HttpWebRequest myReq = (HttpWebRequest)HttpWebRequest.Create(a_strUrl); myReq.Timeout = timeout; HttpWebResponse HttpWResp = (HttpWebResponse)myReq.GetResponse(); Stream myStream = HttpWResp.GetResponseStream(); StreamReader sr = new StreamReader(myStream, Encoding.Default); StringBuilder strBuilder = new StringBuilder(); while (-1 != sr.Peek()) { strBuilder.Append(sr.ReadLine()); } strResult = strBuilder.ToString(); } catch (Exception exp) { strResult = "错误：" + exp.Message; } return strResult; } protected void Page_Load(object sender, EventArgs e) { //***************************************************************************************** ///当不知道https的时候，请使用http string alipayNotifyURL = "https://www.alipay.com/cooperate/gateway.do?"; //string alipayNotifyURL = "http://notify.alipay.com/trade/notify_query.do?"; string partner = "2088001478348382"; //*********partner合作伙伴id（必须填写） string key = "8u4nvc28peb8t1tpzbfqpfsax3fehjtr"; //************partner 的对应交易安全校验码（必须填写） alipayNotifyURL = alipayNotifyURL + "service=notify_verify" + "&partner=" + partner + "&notify_id=" + Request.Form["notify_id"]; // alipayNotifyURL = alipayNotifyURL + "&partner=" + partner + "&notify_id=" + Request.Form["notify_id"]; //获取支付宝ATN返回结果，true是正确的订单信息，false 是无效的 string responseTxt = Get_Http(alipayNotifyURL, 120000); //**************************************************************************************** int i; NameValueCollection coll; //Load Form variables into NameValueCollection variable. coll = Request.Form; // Get names of all forms into a string array. String[] requestarr = coll.AllKeys; //进行排序； string[] Sortedstr = BubbleSort(requestarr); //for (i = 0; i < Sortedstr.Length; i++) //{ // Response.Write("Form: " + Sortedstr[i] + "=" + Request.Form[Sortedstr[i]] + "<br>"); //} //构造待md5摘要字符串 ； string prestr = ""; for (i = 0; i < Sortedstr.Length; i++) { if (Request.Form[Sortedstr[i]] != "" && Sortedstr[i] != "sign" && Sortedstr[i] != "sign_type") { if (i == Sortedstr.Length - 1) { prestr = prestr + Sortedstr[i] + "=" + Request.Form[Sortedstr[i]]; } else { prestr = prestr + Sortedstr[i] + "=" + Request.Form[Sortedstr[i]] + "&"; } } } prestr = prestr + key; string mysign = GetMD5(prestr); string sign = Request.Form["sign"]; if (mysign == sign && responseTxt == "true") //验证支付发过来的消息，签名是否正确 { //更新自己数据库的订单语句，请自己填写一下 Response.Write("success"); //返回给支付宝消息，成功 } else Response.Write("success"); } }