支付宝的支付接口在.net中的使用

这篇文章主要为大家详细介绍了.net接入支付宝的支付接口，H5网站接入支付宝的支付接口，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

H5手机网站接入支付宝的支付接口，推荐使用支付宝提供的SDK来快速开发

我使用的是SDK开发

引用命名空间

using Aop.Api;using Aop.Api.Request;using Aop.Api.Response;using Aop.Api.Util;

首页需要定义一些常量

 static string serverUrl = "https://openapi.alipaydev.com/gateway.do";    static string app_id = "**";  //开发者的应用ID    static string format = "JSON";    static string charset = "utf-8";    static string sign_type = "RSA2"; //签名格式    static string version = "1.0";    string UID = "2088102169707816";//卖家支付宝账户号    //商户私钥    static string merchant_private_key = "***";    //支付宝公钥    static string alipay_public_key = "***";

这里的app_id,merchant_private_key,alipay_public_key 我就没有列出来了，获取的方法需要自己去支付宝平台完成一些操作进行获取

在用户点击网站付款时，我们需要唤醒支付宝，来进行支付

public string H5RequestPayWay(OrderPO order)    {      IAopClient client = new DefaultAopClient(serverUrl, app_id, merchant_private_key, format, version, sign_type, alipay_public_key, charset, false);      AlipayTradeWapPayRequest request = new AlipayTradeWapPayRequest();      string address= "http://m." + PathLogic1.RootDomain;      request.SetReturnUrl(address+ "/WebPay/AlipayPayResult");//同步请求      request.SetNotifyUrl(address + "/WebPay/AsyncPay");//异步请求      var lstDetail = Context.Data.OrderDetail.Where(x => x.OrderNo == order.OrderNo).ToSelectList(x=>new { x.SkuName});      StringBuilder sb = new StringBuilder();      for (int i = 0; i < lstDetail.Count(); i++)      {        sb.Append(lstDetail[i].SkuName + ",");      }      request.BizContent = "{" +  "\"body\":\""+sb.ToString().Substring(0,sb.Length-1)+"\"," +  "\"subject\":\"袋鼠巴巴商品支付\"," +  "\"out_trade_no\":\""+order.OrderNo+"\"," +  "\"timeout_express\":\"90m\"," +  "\"total_amount\":"+(order.TotalAmount.Value+order.TotalFreight.Value)+"," +  "\"product_code\":\"QUICK_WAP_PAY\"" +  " }";      AlipayTradeWapPayResponse response = client.pageExecute(request);       return response.Body;    }

具体发送给支付宝的参数，自行去查看

执行方法后，买家输入自己的支付宝账号密码进行支付，支付成功的结果，支付宝会以post的方式异步请求你的SetNotifyUrl的地址

这个SetNotifyUrl的地址必须要外网可以访问，支付宝的请求才能进来

买家支付成功，商家修改订单状态和数据库的操作，都在异步请求中执行

同步请求

public ActionResult AlipayPayResult()    {      ViewBag.result = "success";      return View("PayResult");    }

     /// <summary>    /// 验证通知数据的正确性    /// </summary>    /// <param name="out_trade_no"></param>    /// <param name="total_amount"></param>    /// <param name="seller_id"></param>    /// <returns></returns> private SortedDictionary<string, string> GetRequestPost()    {      int i = 0;      SortedDictionary<string, string> sArray = new SortedDictionary<string, string>();      NameValueCollection coll;      //Load Form variables into NameValueCollection variable.      coll = Request.Form;      // Get names of all forms into a string array.      String[] requestItem = coll.AllKeys;      for (i = 0; i < requestItem.Length; i++)      {        sArray.Add(requestItem[i], Request.Form[requestItem[i]]);      }      return sArray;    }

 /// <summary>    /// 验签    /// </summary>    /// <param name="inputPara"></param>    /// <returns></returns>    public Boolean Verify(SortedDictionary<string, string> inputPara)    {      Dictionary<string, string> sPara = new Dictionary<string, string>();          Boolean verifyResult = AlipaySignature.RSACheckV1(inputPara, alipay_public_key, charset,sign_type,false);      return verifyResult;    }

异步请求：

 [HttpPost]    public void AsyncPay()    {      SortedDictionary<string, string> sPara = GetRequestPost();//将post请求过来的参数传化为SortedDictionary      if (sPara.Count > 0)      {        AlipayTradeWayPayServer pay = new AlipayTradeWayPayServer();        Boolean VerifyResult = pay.Verify(sPara);//验签if (VerifyResult)        {          try          {             //商户订单号            string out_trade_no = Request.Form["out_trade_no"];            //支付宝交易号            string trade_no = Request.Form["trade_no"];            //支付金额            decimal total_amount = Request.Form["total_amount"].ConvertType(Decimal.Zero);            //实收金额            //decimal receipt_amount = Request.Form["receipt_amount"].ConvertType(Decimal.Zero);            //交易状态            string trade_status = Request.Form["trade_status"];            //卖家支付宝账号            string seller_id = Request.Form["seller_id"];            //商品描述            string body = Request.Form["body"];            //交易创建时间            DateTime gmt_create = DateTime.Parse(Request.Form["gmt_create"]);            //交易付款时间            DateTime gmt_payment = DateTime.Parse(Request.Form["gmt_payment"]);            string appid = Request.Form["app_id"];            WriteError("验证参数开始");            Boolean DataValidity = pay.CheckInform(out_trade_no, total_amount, seller_id, appid);//商家判断参数时候是否匹配if (DataValidity)            {              if (Request.Form["trade_status"] == "TRADE_FINISHED")              {                AlipayWayPayPO model = CreateAlipayWayPay(out_trade_no, trade_no, trade_status, gmt_create, gmt_payment);                pay.PaySuccess(out_trade_no, model, Server.MapPath("~/" + DateTime.Today.ToString("yyMMdd") + ".txt"));//修改订单                //注意：                //退款日期超过可退款期限后（如三个月可退款），支付宝系统发送该交易状态通知              }              else if (Request.Form["trade_status"] == "TRADE_SUCCESS")              {                AlipayWayPayPO model = CreateAlipayWayPay(out_trade_no, trade_no, trade_status, gmt_create, gmt_payment);                pay.PaySuccess(out_trade_no, model, Server.MapPath("~/" + DateTime.Today.ToString("yyMMdd") + ".txt"));//修改订单                //注意：                //付款完成后，支付宝系统发送该交易状态通知              }              else              {              }              //——请根据您的业务逻辑来编写程序（以上代码仅作参考）——              Response.Write("success"); //请不要修改或删除              /////////////////////////////////////////////////////////////////////////////////////////////////////////////            }          }          catch (Exception ex)          {                      }        }        else//验证失败        {          Response.Write("fail");        }      }      else      {        Response.Write("无通知参数");      }    }

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