C#支付宝扫码支付代码完整版

本文实例为大家分享了C#支付宝扫码支付示的具体代码，供大家参考，具体内容如下

支付宝工具类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Web;

namespace ZK_ECommerce.Shop.pay.alipay
{
  public class AliPay
  {

    public static string GetMD5(string s, string _input_charset)
    {

      /// <summary>
      /// 与ASP兼容的MD5加密算法
      /// </summary>

      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[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;
    }

    public string CreatUrl(
      string gateway,
      string service,
      string partner,
      string sign_type,
      string out_trade_no,
      string subject,
      string body,
      string payment_type,
      string total_fee,
      string show_url,
      string seller_email,
      string key,
      string return_url,
      string _input_charset,
      string notify_url,
      string extra_common_param = ""
      )
    {
      return CreatUrl(
      gateway,
      service,
      partner,
      sign_type,
      out_trade_no,
      subject,
      body,
      payment_type,
      total_fee,
      show_url,
      seller_email,
      key,
      return_url,
      _input_charset,
      notify_url,
      "",
      extra_common_param);
    }



    public string CreatUrl(
      string gateway,
      string service,
      string partner,
      string sign_type,
      string out_trade_no,
      string subject,
      string body,
      string payment_type,
      string total_fee,
      string show_url,
      string seller_email,
      string key,
      string return_url,
      string _input_charset,
      string notify_url,
      string token,
      string extra_common_param = ""
      )
    {
      /// <summary>
      ///2015年11月17日14:08:00
      /// </summary>
      int i;
      string[] Oristr;
      //构造数组；
      if (!string.IsNullOrEmpty(token))
      {
        if (extra_common_param == "COD2MOTOPAY")
        {
          Oristr = new[]{
          "service="+service,
          "partner=" + partner,
          "subject=" + subject,
          "body=" + body,
          "out_trade_no=" + out_trade_no,
          "total_fee=" + total_fee,
          "show_url=" + show_url,
          "payment_type=" + payment_type,
          "seller_email=" + seller_email,
          "notify_url=" + notify_url,
          "_input_charset="+_input_charset,
          "return_url=" + return_url,
          "token="+token,
          "extra_common_param="+extra_common_param
          };
        }
        else
        {
          Oristr = new[]{
          "service="+service,
          "partner=" + partner,
          "subject=" + subject,
          "body=" + body,
          "out_trade_no=" + out_trade_no,
          "total_fee=" +total_fee,
          "show_url=" + show_url,
          "payment_type=" + payment_type,
          "seller_email=" + seller_email,
          "notify_url=" + notify_url,
          "_input_charset="+_input_charset,
          "return_url=" + return_url,
          "token="+token
          };
        }

      }
      else
      {
        if (extra_common_param == "COD2MOTOPAY")
        {
          Oristr = new[]{
          "service="+service,
          "partner=" + partner,
          "subject=" + subject,
          "body=" + body,
          "out_trade_no=" + out_trade_no,
          "total_fee="+total_fee,
          "show_url=" + show_url,
          "payment_type=" + payment_type,
          "seller_email=" + seller_email,
          "notify_url=" + notify_url,
          "_input_charset="+_input_charset,
          "return_url=" + return_url,
          "extra_common_param="+extra_common_param
          };
        }
        else
        {
          Oristr = new[]{
          "service="+service,
          "partner=" + partner,
          "subject=" + subject,
          "body=" + body,
          "out_trade_no=" + out_trade_no,
          "total_fee=" + total_fee,
          "show_url=" + show_url,
          "payment_type=" + payment_type,
          "seller_email=" + seller_email,
          "notify_url=" + notify_url,
          "_input_charset="+_input_charset,
          "return_url=" + return_url
          };
        }


      }
      //进行排序；
      string[] Sortedstr = BubbleSort(Oristr);


      //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[i]);

        }
        else
        {

          prestr.Append(Sortedstr[i] + "&");
        }

      }

      prestr.Append(key);

      //生成Md5摘要；
      string sign = GetMD5(prestr.ToString(), _input_charset);

      //构造支付Url；
      char[] delimiterChars = { '=' };
      StringBuilder parameter = new StringBuilder();
      parameter.Append(gateway);
      for (i = 0; i < Sortedstr.Length; i++)
      {

        parameter.Append(Sortedstr[i].Split(delimiterChars)[0] + "=" + HttpUtility.UrlEncode(Sortedstr[i].Split(delimiterChars)[1]) + "&");
      }

      parameter.Append("sign=" + sign + "&sign_type=" + sign_type);


      //返回支付Url；
      return parameter.ToString();

    }

    public string CreatUrl_MissPayments(
                string gateway,
                string service,
                string partner,
                string sign_type,
                string out_trade_no,
                string key,
                string _input_charset

     )
    {
      /// <summary>
      /// created by sunzhizhi 2006.5.21,[e-mail]。
      /// </summary>
      int i;

      //构造数组；
      string[] Oristr ={
        "service="+service,
        "partner=" + partner,
        "out_trade_no=" + out_trade_no,
        "_input_charset="+_input_charset

        };

      //进行排序；
      string[] Sortedstr = BubbleSort(Oristr);


      //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[i]);

        }
        else
        {

          prestr.Append(Sortedstr[i] + "&");
        }

      }

      prestr.Append(key);

      //生成Md5摘要；
      string sign = GetMD5(prestr.ToString(), _input_charset);

      //构造支付Url；
      char[] delimiterChars = { '=' };
      StringBuilder parameter = new StringBuilder();
      parameter.Append(gateway);
      for (i = 0; i < Sortedstr.Length; i++)
      {

        parameter.Append(Sortedstr[i].Split(delimiterChars)[0] + "=" + HttpUtility.UrlEncode(Sortedstr[i].Split(delimiterChars)[1]) + "&");
      }

      parameter.Append("sign=" + sign + "&sign_type=" + sign_type);


      //返回支付Url；
      return parameter.ToString();

    }


    public static string GetTranSign(string TranData)
    {
      if (string.IsNullOrWhiteSpace(TranData))
        return null;
      string sign = GetMD5(TranData + "alskdjfaow;fjel;asdjf", "utf-8");
      return sign;
    }

  }
}

页面处理

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.Linq;
using System.Net;
using System.Security.Cryptography;
using System.Text;
using System.Web;
using System.Web.Mvc;
using ZK_ECommerce.Shop.pay.alipay;

namespace Alipay.Controllers
{
  public class ApliayDemoController : Controller
  {
    /// <summary>
    /// 支付页面
    /// </summary>
    /// <param name="ordercode"></param>
    /// <returns></returns>
    public ActionResult Index(string ordercode)
    {


      string out_trade_no = ordercode;
      string gateway = "https://mapi.alipay.com/gateway.do?"; //支付接口
      string service = "create_direct_pay_by_user";
      string partner = "";    //partner合作伙伴ID保留字段
      string sign_type = "MD5";
      string payment_type = "1";         //支付类型
      string show_url = "http://www.letao.com";
      string seller_email = "";       //卖家账号
      string key = "";       //partner账户的支付宝安全校验码
      string return_url = "http://localhost:1396/ApliayDemo/ApliyReturn"; //服务器通知返回接口
      string notify_url = "http://localhost:1396/ApliayDemo/AlipayNotify"; //服务器通知返回接口
      string _input_charset = "utf-8";
      string extra_common_param = "COD2MOTOPAY";//表示快捷支付
      string token = string.Empty;
      if (string.IsNullOrEmpty(token))
        token = "";
      string subject = "康康体检套餐"; // subject商品名称
      string body = "测试商品"; //商品描述
      string total_fee = "0.01";
      AliPay ap = new AliPay();
      string aliay_url = ap.CreatUrl(gateway, service, partner, sign_type, out_trade_no, subject, body, payment_type,
                      total_fee, show_url, seller_email, key, return_url, _input_charset, notify_url, token, extra_common_param);

      return Redirect(aliay_url);


    }


    /// <summary>
    /// 返回通知页面
    /// </summary>
    /// <returns></returns>
    public ActionResult ApliyReturn()
    {

      string alipayNotifyURL = "https://mapi.alipay.com/gateway.do?";
      string key = ""; //partner 的对应交易安全校验码（必须填写）
      string _input_charset = "utf-8";
      string partner = "";    //partner合作伙伴id（必须填写）

      alipayNotifyURL = alipayNotifyURL + "service=notify_verify" + "&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 = Get_Http(alipayNotifyURL, 120000);

      int i;
      NameValueCollection coll;
      coll = Request.QueryString;
      String[] requestarr = coll.AllKeys;
      //进行排序；
      string[] Sortedstr = 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[i]] != "" && Sortedstr[i] != "sign" && Sortedstr[i] != "sign_type")
        {
          if (i == Sortedstr.Length - 1)
          {
            prestr.Append(Sortedstr[i] + "=" + Request.QueryString[Sortedstr[i]]);
          }
          else
          {
            prestr.Append(Sortedstr[i] + "=" + Request.QueryString[Sortedstr[i]] + "&");

          }
        }


      }

      prestr.Append(key);
      string mysign = GetMD5(prestr.ToString(), _input_charset);
      string sign = Request.QueryString["sign"];
      string trade_status = Request.QueryString["trade_status"];

      if (mysign == sign && responseTxt == "true" && trade_status == "TRADE_SUCCESS")  //验证支付发过来的消息，签名是否正确
      {
        string order_amount = Request.QueryString["total_fee"].ToString().Trim();
        string order_code = Request.QueryString["out_trade_no"].ToString().Trim();


        //updateOrder(order_code);//更新订单状态
        Response.Redirect(""); //跳转到支付成功页面
      }
      else
      {

        Response.Write("支付失败。");
        Response.Write("<br>Result:responseTxt=" + responseTxt);
        Response.Write("<br>Result:mysign=" + mysign);
        Response.Write("<br>Result:sign=" + sign);
      }
      return View();
    }


    /// <summary>
    /// 支付回调页面
    /// </summary>
    /// <returns></returns>
    public ActionResult AlipayNotify()
    {


      string alipayNotifyURL = "https://mapi.alipay.com/gateway.do?";
      string partner = "";    //partner合作伙伴id（必须填写）
      string key = ""; //partner 的对应交易安全校验码（必须填写）

      alipayNotifyURL = alipayNotifyURL + "service=notify_verify" + "&partner=" + partner + "¬ify_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);
      //构造待md5摘要字符串 ；
      StringBuilder prestr = new StringBuilder();

      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.Append(Sortedstr[i] + "=" + Request.QueryString[Sortedstr[i]]);
          }
          else
          {
            prestr.Append(Sortedstr[i] + "=" + Request.QueryString[Sortedstr[i]] + "&");

          }
        }


      }

      prestr.Append(key);
      string mysign = GetMD5(prestr.ToString());
      string sign = Request.QueryString["sign"];
      string trade_status = Request.QueryString["trade_status"];

      if (mysign == sign && responseTxt == "true" && trade_status == "TRADE_SUCCESS")  //验证支付发过来的消息，签名是否正确
      {
        string order_amount = Request.QueryString["total_fee"].ToString().Trim();
        string order_code = Request.QueryString["out_trade_no"].ToString().Trim();



        // updateOrder(order_code);//更新订单状态
        Response.Redirect(""); //跳转到支付成功页面
      }
      else
      {

        Response.Write("支付失败。");
        Response.Write("<br>Result:responseTxt=" + responseTxt);
        Response.Write("<br>Result:mysign=" + mysign);
        Response.Write("<br>Result:sign=" + sign);
      }
      return View();
    }

    public static string GetMD5(string s, string _input_charset)
    {
      /// <summary>
      /// 与ASP兼容的MD5加密算法
      /// </summary>

      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[i].ToString("x").PadLeft(2, '0'));
      }
      return sb.ToString();
    }



    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("utf-8").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;
    }

  }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。

原文链接：https://blog.csdn.net/for12/article/details/50772034