C#.net 支付宝接口(转)

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>

本文转自钢钢博客园博客，原文链接：http://www.cnblogs.com/xugang/archive/2007/10/11/920565.html，如需转载请自行联系原作者