.NET支付宝接口

 

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 = "[email protected]";          //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

<%@ 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 = "[email protected]";            //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>