C#.net 支付宝接口

转：http://blog.csdn.net/jxufewbt/archive/2007/08/04/1726168.aspx

复制C#代码保存代码

using System;

using System.Data;

using System.Configuration;

using System.Collections;

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;

public partial class pay : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

Encoding gb2312 = Encoding.GetEncoding("gb2312");

Response.ContentEncoding = gb2312;

Request.ContentEncoding = gb2312;

}

protected void ImageButton1_Click(object sender, ImageClickEventArgs e)

{

if (Request.Cookies[FormsAuthentication.FormsCookieName] != null)

{

Vlike_DB_read a = new Vlike_DB_read();

string zfb_ddh = a.get_zfb_id(Membership.GetUser().UserName, Convert.ToInt32(DropDownList1.SelectedValue));

Response.Redirect(img("0001", "包月", "影视包月 10元/月", zfb_ddh, "10.00", Membership.GetUser().UserName.ToUpper(), DropDownList1.SelectedValue));

}

else

{

Response.Write("<script type='text/javascript'>alert('请先登陆!');</script>");

}

}

private string img(string strcmd, string strSub, string strSubinfo, string strid, string strMoney, string strUser, string strNum)

{

string strsellerEmail = "341081@qq.com"; //卖家支付宝帐号

string strAc = ""; 　　　　//卖家支付宝安全校验码

string INTERFACE_URL = "https://www.alipay.com/payto:";

string strCmd = strcmd; //命令字

string strSubject = strSub; //商品名

string strBody = strSubinfo; //商品描述

string strOrder_no = strid; //商户订单号

string strPrice = strMoney; //商品单价 0.01～50000.00

string rurl = "http://"; //商品展示网址

string strType = "2"; //type支付类型 1：商品购买2：服务购买3：网络拍卖4：捐赠

string strNumber = strNum; //购买数量

string strTransport = "3"; //发货方式 1：平邮2：快递3：虚拟物品

string strOrdinary_fee = ""; //平邮运费

string strExpress_fee = ""; //快递运费

string strReadOnly = "true"; //交易信息是否只读

string strBuyer_msg = ""; //买家给卖家的留言

string strBuyer = ""; //买家EMAIL

string strBuyer_name = strUser; //买家姓名

string strBuyer_address = ""; //买家地址

string strBuyer_zipcode = ""; //买家邮编

string strBuyer_tel = ""; //买家电话号码

string strBuyer_mobile = ""; //买家手机号码

string strPartner = ""; //合作伙伴ID 保留字段

return CreatUrl(strsellerEmail, strAc, INTERFACE_URL, strCmd, strSubject, strBody,

strOrder_no, strPrice, rurl, strType, strNumber, strTransport,

strOrdinary_fee, strExpress_fee, strReadOnly, strBuyer_msg, strBuyer,

strBuyer_name, strBuyer_address, strBuyer_zipcode, strBuyer_tel,

strBuyer_mobile, strPartner);

}

private string CreatUrl(

string strsellerEmail,

string strAc,

string INTERFACE_URL,

string strCmd,

string strSubject,

string strBody,

string strOrder_no,

string strPrice,

string rurl,

string strType,

string strNumber,

string strTransport,

string strOrdinary_fee,

string strExpress_fee,

string strReadOnly,

string strBuyer_msg,

string strBuyer,

string strBuyer_name,

string strBuyer_address,

string strBuyer_zipcode,

string strBuyer_tel,

string strBuyer_mobile,

string strPartner)

{ //以下参数值不能留空

string str2CreateAc = "";

str2CreateAc += "cmd" + strCmd + "subject" + strSubject;

str2CreateAc += "body" + strBody;

str2CreateAc += "order_no" + strOrder_no;

str2CreateAc += "price" + strPrice;

str2CreateAc += "url" + rurl;

str2CreateAc += "type" + strType;

str2CreateAc += "number" + strNumber;

str2CreateAc += "transport" + strTransport;

str2CreateAc += "ordinary_fee" + strOrdinary_fee;

str2CreateAc += "express_fee" + strExpress_fee;

str2CreateAc += "readonly" + strReadOnly;

str2CreateAc += "buyer_msg" + strBuyer_msg;

str2CreateAc += "seller" + strsellerEmail;

str2CreateAc += "buyer" + strBuyer;

str2CreateAc += "buyer_name" + strBuyer_name;

str2CreateAc += "buyer_address" + strBuyer_address;

str2CreateAc += "buyer_zipcode" + strBuyer_zipcode;

str2CreateAc += "buyer_tel" + strBuyer_tel;

str2CreateAc += "buyer_mobile" + strBuyer_mobile;

str2CreateAc += "partner" + strPartner;

str2CreateAc += strAc;

string acCode = GetMD5(str2CreateAc);

string parameter = "";

parameter += INTERFACE_URL + strsellerEmail + "?cmd=" + strCmd;

parameter += "&subject=" + Server.UrlEncode(strSubject);

parameter += "&body=" + Server.UrlEncode(strBody);

parameter += "&order_no=" + strOrder_no;

parameter += "&url=" + rurl;

parameter += "&price=" + strPrice;

parameter += "&type=" + strType;

parameter += "&number=" + strNumber;

parameter += "&transport=" + strTransport;

parameter += "&ordinary_fee=" + strOrdinary_fee;

parameter += "&express_fee=" + strExpress_fee;

parameter += "&readonly=" + strReadOnly;

parameter += "&buyer_msg=" + strBuyer_msg;

parameter += "&buyer=" + strBuyer;

parameter += "&buyer_name=" + Server.UrlEncode(strBuyer_name);

parameter += "&buyer_address=" + strBuyer_address;

parameter += "&buyer_zipcode=" + strBuyer_zipcode;

parameter += "&buyer_tel=" + strBuyer_tel;

parameter += "&buyer_mobile=" + strBuyer_mobile;

parameter += "&partner=" + strPartner;

parameter += "&ac=" + acCode;

return parameter;

}

private static string GetMD5(string s)

{

System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();

byte[] t = md5.ComputeHash(System.Text.Encoding.GetEncoding("gb2312").GetBytes(s));

System.Text.StringBuilder sb = new System.Text.StringBuilder(32);

for (int i = 0; i < t.Length; i++)

{

sb.Append(t[i].ToString("x").PadLeft(2, '0'));

}

return sb.ToString();

}

}

接收支付宝信息并进行相应操作

复制ASPX代码保存代码

<%@ Page Language="C#" %>

<%@ Import Namespace="System.Data.SqlClient" %>

<%@ Import Namespace="System.Data" %>

<%@ Import Namespace="System.Web" %>

<%@ Import Namespace="System.IO" %>

<%@ Import Namespace="System.Net" %>

<%@ Import Namespace="System.Text" %>

<%@ Import Namespace="System.Security.Cryptography" %>

<script type="text/C#" runat="server">

private string returnTxt = "N"; //返回给支付宝通知接口的结果

private string alipayNotifyURL = "http://notify.alipay.com/trade/notify_query.do?"; //支付宝查询接口URL

private string myalipayEmail = "341081@qq.com"; //商户的支付宝Email

private string constPaySecurityCode = ""; //码

private SqlConnection conn = new SqlConnection();

private string GetMD5(string s)

{

System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();

byte[] t = md5.ComputeHash(System.Text.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();

}

private String Get_Http(String a_strUrl, int timeout)

{

string strResult;

try

{

System.Net.HttpWebRequest myReq = (System.Net.HttpWebRequest) System.Net.HttpWebRequest.Create(a_strUrl);

myReq.Timeout = timeout;

System.Net.HttpWebResponse HttpWResp = (System.Net.HttpWebResponse) myReq.GetResponse();

Stream myStream = HttpWResp.GetResponseStream();

StreamReader sr = new StreamReader(myStream, System.Text.Encoding.Default);

System.Text.StringBuilder strBuilder = new System.Text.StringBuilder();

while (-1 != sr.Peek())

{

strBuilder.Append(sr.ReadLine() + "\r\n");

}

strResult = strBuilder.ToString();

}

catch (Exception exp)

{

strResult = "错误：" + exp.Message;

}

return strResult;

}

public void send(string sql)

{

string dbconn = "data source=127.0.0.1;UID=Cm;PWD=fallenangel;database=text";

conn = new SqlConnection(dbconn);

conn.Open();

SqlCommand cmd = new SqlCommand(sql, conn);

int aa = cmd.ExecuteNonQuery();

conn.Close();

}

private void Page_Load(object sender, System.EventArgs e)

{

//检查支付宝通知接口传递过来的参数是否合法

string msg_id = System.Web.HttpContext.Current.Request["msg_id"];

string order_no = System.Web.HttpContext.Current.Request["order_no"];

string gross = System.Web.HttpContext.Current.Request["gross"];

string buyer_email = System.Web.HttpContext.Current.Request["buyer_email"];

string buyer_name = System.Web.HttpContext.Current.Request["buyer_name"];

string buyer_address = System.Web.HttpContext.Current.Request["buyer_address"];

string buyer_zipcode = System.Web.HttpContext.Current.Request["buyer_zipcode"];

string buyer_tel = System.Web.HttpContext.Current.Request["buyer_tel"];

string buyer_mobile = System.Web.HttpContext.Current.Request["buyer_mobile"];

string action = System.Web.HttpContext.Current.Request["action"];

string s_date = System.Web.HttpContext.Current.Request["date"];

string ac = System.Web.HttpContext.Current.Request["ac"];

string notify_type = System.Web.HttpContext.Current.Request["notify_type"];

alipayNotifyURL = alipayNotifyURL + "msg_id=" + msg_id + "&email=" + myalipayEmail + "&order_no=" + order_no;

//获取支付宝ATN返回结果，true和false都是正确的订单信息，invalid 是无效的

string responseTxt = Get_Http(alipayNotifyURL, 120000);

string Str = "msg_id" + msg_id + "order_no" + order_no + "gross" + gross + "buyer_email" + buyer_email + "buyer_name" + buyer_name + "buyer_address" + buyer_address + "buyer_zipcode" + buyer_zipcode + "buyer_tel" + buyer_tel + "buyer_mobile" + buyer_mobile + "action" + action + "date" + s_date + constPaySecurityCode;

string ac_code = GetMD5(Str);

if (action == "test") //支付宝接口测试是否有效

{

returnTxt = "Y";

}

if (action == "sendOff") //发货通知

{

if (responseTxt.Substring(0, 4) == "true"

|| responseTxt.Substring(0, 4) == "fals")//ATN，验证消息是否支付宝发过来

{

if (ac_code == ac)//验证消息是否被修改

{

//数据库操作

}

}

}

if (action == "checkOut") //交易完成通知

{

returnTxt = "N";

if (responseTxt.Substring(0, 4) == "true"

|| responseTxt.Substring(0, 4) == "fals")//ATN，验证消息是否支付宝发过来

{

if (ac_code == ac)//验证消息是否被修改

{

//数据库操作

}

}

}

System.Web.HttpContext.Current.Response.Write(returnTxt);

}

</script>