(转)支付宝及时到帐接口

支付宝有一个类文件叫 AliPay 是一些加密算法的东西

using System.Web;
using System.Text;
using System.Security.Cryptography;
using System.IO;
using System.Net;
using System;
 
/// <summary>
/// New Interface for AliPay
/// </summary>
namespace Gateway
{
    public class AliPay
    {
        /// <summary>
        /// 与ASP兼容的MD5加密算法
        /// </summary>
        public static string GetMD5(string s, string _input_charset)
        {
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] t = md5.ComputeHash(Encoding.GetEncoding(_input_charset).GetBytes(s));
            StringBuilder sb = new StringBuilder(32);
            for (int i = 0; i < t.Length; i++)
            {
                sb.Append(t.ToString("x").PadLeft(2, '0'));
            }
            return sb.ToString();
        }
 
        /// <summary>
        /// 冒泡排序法
        /// 按照字母序列从a到z的顺序排列
        /// </summary>
        public static string[] BubbleSort(string[] r)
        {
            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--)
                {//交换条件
                    if (System.String.CompareOrdinal(r[j + 1], r[j]) < 0)
                    {
                        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;
        }
 
        /// <summary>
        /// 生成URL链接或加密结果
        /// </summary>
        /// <param name="para">参数加密数组</param>
        /// <param name="_input_charset">编码格式</param>
        /// <param name="sign_type">加密类型</param>
        /// <param name="key">安全校验码</param>
        /// <returns>字符串URL或加密结果</returns>
        public static string CreatUrl(
            //string gateway,//GET方式传递参数时请去掉注释
            string[] para,
            string _input_charset,
            string sign_type,
            string key
            )
        {
            int i;
             
            //进行排序;
            string[] Sortedstr = BubbleSort(para);
 
 
            //构造待md5摘要字符串 ;
 
            StringBuilder prestr = new StringBuilder();
 
            for (i = 0; i < Sortedstr.Length; i++)
            {
                if (i == Sortedstr.Length - 1)
                {
                    prestr.Append(Sortedstr);
 
                }
                else
                {
                    prestr.Append(Sortedstr + "&");
                }
 
            }
 
            prestr.Append(key);
 
            //生成Md5摘要;
            string sign = GetMD5(prestr.ToString(), _input_charset);
 
            //以下是POST方式传递参数
            return sign;
 
        }
 
        //获取远程服务器ATN结果,验证是否是支付宝服务器发来的请求
        public static 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;
        }
 
    }
}
View Code

支付提交信息页面:

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 Gateway;
 
public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }
    protected void BtnAlipay_Click(object sender, EventArgs e)
    {
        //业务参数赋值;
        string gateway = "https://www.alipay.com/cooperate/gateway.do?";    //支付接口
        string service = "create_direct_pay_by_user";                       //服务名称,这个是识别是何接口实现何功能的标识,请勿修改
 
        string seller_email = "写自己的";                     //商家签约时的支付宝帐号,即收款的支付宝帐号
        string sign_type = "MD5";                                           //加密类型,签名方式“不用改”
        string key = "写自己的";                    //安全校验码,与partner是一组,获取方式是:用签约时支付宝帐号登陆支付宝网站[url=http://www.alipay.com/]www.alipay.com[/url],在商家服务我的商家里即可查到。
        string partner = "写自己的";                                //商户ID,合作身份者ID,合作伙伴ID
        string _input_charset = "utf-8";                                    //编码类型,完全根据客户自身的项目的编码格式而定,千万不要填错。否则极其容易造成MD5加密错误。
 
        string show_url = "http://www.alipay.com/";                         //展示地址,即在支付页面时,商品名称旁边的“详情”的链接地址。
 
        string out_trade_no = TxtOrderno.Text.Trim();                       //客户自己的订单号,订单号必须在自身订单系统中保持唯一性
        string subject = "4.0系统支付宝充值";                            //商品名称,也可称为订单名称,该接口并不是单一的只能买一样东西,可把一次支付当作一次下订单
        string body = "商户:" + TxtOrderno.Text.Trim() + "通过支付宝给自己充值:" + TxtTotal_fee.Text.Trim() + "";                                   //商品描述,即备注
        string total_fee = TxtTotal_fee.Text.Trim();                        //商品价格,也可称为订单的总金额
 
        //服务器通知url(Alipay_Notify.aspx文件所在路经),必须是完整的路径地址
        string notify_url = [url=http://0.0.6.108/Alipay/Alipay_Notify.aspx;]http://0.0.6.108/Alipay/Alipay_Notify.aspx;[/url]
        //服务器返回url(Alipay_Return.aspx文件所在路经),必须是完整的路径地址
        string return_url = [url=http://0.0.6.108/Alipay/Alipay_Return.aspx;]http://0.0.6.108/Alipay/Alipay_Return.aspx;[/url]
 
        //构造数组;
        //以下数组即是参与加密的参数,若参数的值不允许为空,若该参数为空,则不要成为该数组的元素
        string[] para ={
        "service="+service,
        "partner=" + partner,
        "seller_email=" + seller_email,
        "out_trade_no=" + out_trade_no,
        "subject=" + subject,
        "body=" + body,
        "total_fee=" + total_fee,
        "show_url=" + show_url,
        "payment_type=1",
        "notify_url=" + notify_url,
        "return_url=" + return_url,
        "_input_charset="+_input_charset
        };
 
        //支付URL生成
        string aliay_url = AliPay.CreatUrl(
            //gateway,//GET方式传递参数时请去掉注释
            para,
            _input_charset,
            sign_type,
            key
            );
 
        //以下是GET方式传递参数
        //Response.Redirect(aliay_url);
 
        //以下是POST方式传递参数
        Response.Write("<form name='alipaysubmit' method='post' action='https://www.alipay.com/cooperate/gateway.do?_input_charset=utf-8'>");
        Response.Write("<input type='hidden' name='service' value=" + service + ">");
        Response.Write("<input type='hidden' name='partner' value=" + partner + ">");
        Response.Write("<input type='hidden' name='seller_email' value=" + seller_email + ">");
        Response.Write("<input type='hidden' name='out_trade_no' value=" + out_trade_no + ">");
        Response.Write("<input type='hidden' name='subject' value=" + subject + ">");
        Response.Write("<input type='hidden' name='body' value=" + body + ">");
        Response.Write("<input type='hidden' name='total_fee' value=" + total_fee + ">");
        Response.Write("<input type='hidden' name='show_url' value=" + show_url + ">");
        Response.Write("<input type='hidden' name='return_url' value=" + return_url + ">");
        Response.Write("<input type='hidden' name='notify_url' value=" + notify_url + ">");
        Response.Write("<input type='hidden' name='payment_type' value=1>");
        Response.Write("<input type='hidden' name='sign' value=" + aliay_url + ">");
        Response.Write("<input type='hidden' name='sign_type' value=" + sign_type + ">");
        Response.Write("</form>");
        Response.Write("<script>");
        Response.Write("document.alipaysubmit.submit()");
        Response.Write("</script>");
    }
}
View Code

支付成功后,返回验证信息页面:

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;
using System.Collections.Specialized;
using System.IO;
using Gateway;
 
/// <summary>
/// 创建该页面文件时,请留心该页面文件是可以对其进行美工处理的,原因在于支付完成以后,当前窗口会从支付宝的页面跳转回这个页面。
/// 该页面称作“返回页”,是同步被支付宝服务器所调用,可当作是支付完成后的提示信息页,如“您的某某某订单,多少金额已支付成功”。
/// </summary>
public partial class Alipay_Return : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        string alipayNotifyURL = "https://www.alipay.com/cooperate/gateway.do?service=notify_verify";
        //string alipayNotifyURL = "http://notify.alipay.com/trade/notify_query.do?";//此路径是在上面链接地址无法起作用时替换使用。
        string key = "写自己的"; //partner 的对应交易安全校验码(必须填写)
        string partner = "写自己的";         //partner合作伙伴id(必须填写)
        string _input_charset = "utf-8";//编码类型,完全根据客户自身的项目的编码格式而定,千万不要填错。否则极其容易造成MD5加密错误。
 
        alipayNotifyURL = alipayNotifyURL + "&partner=" + partner + "¬ify_id=" + Request.QueryString["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 = AliPay.Get_Http(alipayNotifyURL, 120000);
 
        //*******加密签名程序开始//*******
        int i;
        NameValueCollection coll;
        //Load Form variables into NameValueCollection variable.
        coll = Request.QueryString;
 
        // Get names of all forms into a string array.
        String[] requestarr = coll.AllKeys;
 
        //进行排序;
        string[] Sortedstr = AliPay.BubbleSort(requestarr);
 
        //构造待md5摘要字符串 ;
 
        StringBuilder prestr = new StringBuilder();
 
        for (i = 0; i < Sortedstr.Length; i++)
        {
            if (Request.Form[Sortedstr] != "" && Sortedstr != "sign" && Sortedstr != "sign_type")
            {
                if (i == Sortedstr.Length - 1)
                {
                    prestr.Append(Sortedstr + "=" + Request.QueryString[Sortedstr]);
                }
                else
                {
                    prestr.Append(Sortedstr + "=" + Request.QueryString[Sortedstr] + "&");
 
                }
            }
        }
 
        prestr.Append(key);
 
        //生成Md5摘要;
        string mysign = AliPay.GetMD5(prestr.ToString(), _input_charset);
        //*******加密签名程序结束*******
 
        string sign = Request.QueryString["sign"];
 
        //  Response.Write(prestr.ToString());  //调试用,支付宝服务器返回时的完整路径。
 
        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
            string strOrderNO = Request.QueryString["out_trade_no"];//订单号
            string strPrice = Request.QueryString["total_fee"];//金额
            string strTradeStatus = Request.QueryString["TRADE_STATUS"];//订单状态
 
            //更新数据库


            //交易成功提示
            Response.Write("商户:" + login[1].ToString().Trim() + "<br>金额:" + strPrice + "   交易成功");     //成功,可美化该页面,提示信息
 
          
        }
        else
        {
            //支付失败,提示信息            
            Response.Write("<br>Result:responseTxt=" + responseTxt);
            Response.Write("<br>Result:mysign=" + mysign);
            Response.Write("<br>Result:sign=" + sign);
            Response.Write("支付失败"); 
           
        }
    }
}
View Code

 

posted @ 2013-12-11 18:49  海上浪子  阅读(262)  评论(0编辑  收藏  举报