c# 实现的支付宝支付

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

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c# 实现的支付宝支付的详细内容，更多关于c# 支付宝支付的资料请关注其它相关文章！