支付宝手机网站接口对接

手机网站支付接口,请参考支付宝官方文档：https://b.alipay.com/signing/productSet.htm?navKey=all

1.需要提供应用ID、应用私钥、支付宝公钥

2.代码实现：

下载官方SDK,并编译引用到项目中去。

初始化对象：private readonly IAopClient _client= new DefaultAopClient("https://openapi.alipay.com/gateway.do", "应用ID", "应用私钥", "json", "1.0", "签名类型", "支付宝公钥", "字符编码格式，支持GBK和UTF-8", false);

支付接口：

1>调用支付宝支付网关

        /// <summary>
        /// 手机网站支付
        /// </summary>
        /// <param name="postProcessPaymentRequest"></param>
        private void AlipayTradeWapPayment(订单实体 order)
        {
            if (order == null)
            {
                Log.Error(this.GetType().ToString(),"订单数据不能为空");
                return;
            }

            Log.Info(this.GetType().ToString(), "AlipayTradeWapPayment Start......");

            string responseText = string.Empty;
            try
            {
                #region 调用支付宝支付接口

                AlipayTradeWapPayRequest request = new AlipayTradeWapPayRequest();
                request.SetReturnUrl(http://XXXXXXXXX/foxconn/AliPayment/AppPaymentReturn);//页面跳转同步通知页面路径
                request.SetNotifyUrl("http://XXXXXXXXX/foxconn/AliPayment/AppPaymentNotify");//服务器异步通知页面路径
                request.BizContent = "{" +
                "    "body":""," +
                "    "subject":"" + order.订单名称述 + ""," +
                "    "out_trade_no":"" + order.订单编号 + ""," +
                "    "timeout_express":"90m"," +
                "    "total_amount":"" + order.订单金额 + ""," +
                "    "seller_id":"" + _alipayPaymentSettings.SellerId + ""," +
                "    "product_code":"QUICK_WAP_PAY"" +
                "  }";
                AlipayTradeWapPayResponse response = _client.pageExecute(request);
                responseText = response.Body;
                _httpContext.Response.Clear();
                _httpContext.Response.Write(responseText);
                _httpContext.Response.End();
                #endregion
            }
            catch (Exception ex)
            {
                Log.Error(this.GetType().ToString(), "Exception: " + ex.Message);
            }

            Log.Info(this.GetType().ToString(), "AlipayTradeWapPayment End......");            
        }

2>接收支付宝同步通知(get)

        /// <summary>
        /// 支付宝手机网站支付同步通知
        /// </summary>
        /// <returns></returns>
        [HttpGet]
        public ActionResult AppPaymentReturn()
        {
            string result = string.Empty;
            Log.Info(this.GetType().ToString(), "AppPaymentReturn End......");

            try
            {
                SortedDictionary<string, string> sPara = GetRequestGet();//将异步通知中收到的所有参数都存放到map中
                if (sPara.Count > 0)//判断是否有带返回参数
                {
                    bool verifyResult = AlipaySignature.RSACheckV1(sPara, _aliPaymentSettings.App_Alipay_Public_Key, _aliPaymentSettings.App_Charset, _aliPaymentSettings.App_SignType, false); //调用SDK验证签名
                    if (verifyResult)
                    {
                        //验签成功后，按照支付结果异步通知中的描述，对支付结果中的业务内容进行二次校验，校验成功后在response中返回success并继续商户自身业务处理，校验失败返回failure
                        //商户订单号
                        string out_trade_no = Request.QueryString["out_trade_no"];
                        //支付宝交易号
                        string trade_no = Request.QueryString["trade_no"];
                        //交易状态
                        string trade_status = Request.QueryString["trade_status"];

                        if (Request.QueryString["trade_status"] == "TRADE_FINISHED" || Request.QueryString["trade_status"] == "TRADE_SUCCESS")
                        {
                            //判断该笔订单是否在商户网站中已经做过处理
                            //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                            //如果有做过处理，不执行商户的业务程序
                        }
                        else
                        {
                            result = "trade_status=" + Request.QueryString["trade_status"];
                        }

                        //打印页面
                        result = "验证成功";
                    }
                    else//验证失败
                    {
                        //验签失败则记录异常日志，并在response中返回failure.
                        result = "验证失败";
                    }
                }
                else
                {
                    result = "无返回参数";
                }
                Log.Info(this.GetType().ToString(), "result:" + result);

            }
            catch (Exception ex)
            {
                Log.Info(this.GetType().ToString(), "Exception:" + ex.Message);
            }
            Log.Info(this.GetType().ToString(), "AppPaymentReturn End......");

            return 跳转页面;
        }

3>接收支付宝异步通知(post)

        /// <summary>
        /// 支付宝手机网站支付异步通知
        /// </summary>
        /// <returns></returns>
        [ValidateInput(false)]
        public ActionResult AppPaymentNotify()
        {
            string result = string.Empty;
            try
            {
                Log.Info(this.GetType().ToString(), "AppPaymentNotify Start......");

                SortedDictionary<string, string> sPara = GetRequestPost();
                if (sPara.Count > 0)//判断是否有带返回参数
                {
                    bool verifyResult = AlipaySignature.RSACheckV1(sPara, _aliPaymentSettings.App_Alipay_Public_Key, _aliPaymentSettings.App_Charset, _aliPaymentSettings.App_SignType, false); //调用SDK验证签名
                    Log.Info(this.GetType().ToString(), "verifyResult:" + verifyResult);

                    if (verifyResult)//验证成功
                    {
                        bool isRefund = false;
                        string batch_no = string.Empty;
                        if(sPara.ContainsKey("out_biz_no"))
                        {
                            isRefund = true;
                            batch_no = sPara["out_biz_no"];
                        }

                        //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"];
                        //交易状态
                        string trade_status = Request.Form["trade_status"];
                        string buyer_id = Request.Form["buyer_id"];
                        string buyer_emial = Request.Form["buyer_logon_id"];
                        if (string.IsNullOrEmpty(out_trade_no))
                        {
                            throw new Exception("商户订单号不能为空");
                        }
                        Log.Debug(this.GetType().ToString(), string.Format("out_trade_no:【{0}】-trade_no:【{1}】-trade_status:【{2}】", out_trade_no, trade_no, trade_status));
                                               
                        if (trade_status == "TRADE_FINISHED")
                        {
                            //判断该笔订单是否在商户网站中已经做过处理
                            //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                            //请务必判断请求时的total_fee、seller_id与通知时获取的total_fee、seller_id为一致的
                            //如果有做过处理，不执行商户的业务程序


                            //处理业务逻辑  


                            //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 (trade_status == "TRADE_SUCCESS")
                        {
                            //判断该笔订单是否在商户网站中已经做过处理
                            //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                            //请务必判断请求时的total_fee、seller_id与通知时获取的total_fee、seller_id为一致的
                            //如果有做过处理，不执行商户的业务程序

                            if (isRefund)
                            {
                                //处理退款业务
                                Log.Info(this.GetType().ToString(), "退款成功");
                            }
                            else
                            {
                                //处理订单业务
                                Log.Info(this.GetType().ToString(), "付款成功");
                            }

                            //注意：
                            //付款完成后，支付宝系统发送该交易状态通知
                        }
                        else if (trade_status == "TRADE_CLOSED")//未付款交易超时关闭，或支付完成后全额退款
                        {
                            if (isRefund)
                            {
                                //处理退款业务
                                Log.Info(this.GetType().ToString(), "退款成功");
                            }
                        }

                        //——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
                        /////////////////////////////////////////////////////////////////////////////////////////////////////////////
                    }
                    else//验证失败
                    {
                        Response.Write("failure");
                    }
                }
                else
                {
                    Response.Write("无通知参数");
                    Log.Info(this.GetType().ToString(), "result:无通知参数");
                }
            }
            catch (Exception ex)
            {
                Response.Write("failure");
                Log.Info(this.GetType().ToString(), "Exception:" + ex.Message);
            }
            Response.End();
            Log.Info(this.GetType().ToString(), "AppPaymentNotify End......");
            return Content("fail");
        }

退款接口： 

        /// <summary>
        /// 退款
        /// </summary>
        /// <param name="refundPaymentRequest"></param>
        /// <returns></returns>
        private bool AlipayTradeWapRefund(退款实体 refundModel)
        {
            var result = false;
            if (refundModel == null)
            {
                Log.Error(this.GetType().ToString(), "退款数据不能为空");            
                return result;
            }
            string responseText = string.Empty;
            try
            {
                #region 调用支付宝退款接口

                AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();//创建API对应的request类
                //request.SetNotifyUrl(_alipayPaymentSettings.App_RefundNotifyUrl);//服务器异步通知页面路径
                string batch_no = refundModel.退款编号;
                request.BizContent = "{" +
                "    "out_trade_no":"" + refundModel.订单编号 + ""," +
                "    "trade_no":"" + refundModel.交易号 + ""," +
                "    "out_request_no":"" + batch_no + ""," +
                "    "refund_amount":"" + refundModel.退款金额 + """ +
                "  }";//设置业务参数
                AlipayTradeRefundResponse response = _client.Execute(request);//通过alipayClient调用API，获得对应的response类                
                //根据response中的结果继续业务逻辑处理

                if (response.Code == "10000")//接口调用成功
                {
                }
                #endregion
            }
            catch (Exception ex)
            {
                responseText = ex.Message;
                Log.Error(this.GetType().ToString(), "Exception: " + ex.Message);
            }
            Log.Info(this.GetType().ToString(), "Refund End......");

            return result;
        }

查询接口：

        /// <summary>
        /// 查询订单在支付宝的状态
        /// </summary>
        /// <param name="queryOrderRequest"></param>
        /// <returns></returns>
        private bool AlipayTradeWapQuery(订单查询实体 queryOrder)
        {
            var result = false;
            if (queryOrder == null)
            {
                Log.Error(this.GetType().ToString(), "查询数据不能为空");
                return result;
            }

            Log.Info(this.GetType().ToString(), "AlipayTradeWapQuery Start......");
            string responseText = string.Empty;
            try
            {
                #region 调用支付宝支付查询接口

                AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();
                request.BizContent = "{" +
                "    "out_trade_no":"" + queryOrder.订单编号 + ""," +
                "    "trade_no":"" + queryOrder.交易号 + """ +
                "  }";
                AlipayTradeQueryResponse response = _client.Execute(request);
                string tradeStatus = response.TradeStatus;
                responseText = tradeStatus;
                if (tradeStatus == "TRADE_SUCCESS" || tradeStatus == "TRADE_CLOSED" || tradeStatus == "TRADE_FINISHED")
                {
                    //处理支付业务
                    result=true;
                    Log.Info(this.GetType().ToString(), "支付成功");
                }
                else
                {
                    Log.Info(this.GetType().ToString(), "支付失败");
                }
                #endregion
            }
            catch (Exception ex)
            {
                responseText = ex.Message;
                Log.Error(this.GetType().ToString(), "Exception: " + ex.Message);
            }
            Log.Debug(this.GetType().ToString(), string.Format("支付宝手机网站支付查询跟踪信息。GetForm：{0}", responseText);
            Log.Info(this.GetType().ToString(), "AlipayTradeWapQuery End......");

            return result;
        }