支付寶手機網站接口對接

手機網站支付接口,請參考支付寶官方文檔：https://b.alipay.com/signing/productSet.htm?navKey=all

1.需要提供應用ID、應用私鑰、支付寶公鑰

2.代碼實現：

下載官方SDK,並編譯引用到項目中去。

初始化對象：private readonly IAopClient _client= new DefaultAopClient("https://openapi.alipay.com/gateway.do", "應用ID", "應用私鑰", "json", "1.0", "簽名類型", "支付寶公鑰", "字符編碼格式，支持GBK和UTF-8", false);

支付接口：

1>調用支付寶支付網關

        /// <summary>
        /// 手機網站支付
        /// </summary>
        /// <param name="postProcessPaymentRequest"></param>
        private void AlipayTradeWapPayment(訂單實體 order)
        {
            if (order == null)
            {
                Log.Error(this.GetType().ToString(),"訂單數據不能為空");
                return;
            }

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

            string responseText = string.Empty;
            try
            {
                #region 調用支付寶支付接口

                AlipayTradeWapPayRequest request = new AlipayTradeWapPayRequest();
                request.SetReturnUrl(http://XXXXXXXXX/foxconn/AliPayment/AppPaymentReturn);//頁面跳轉同步通知頁面路徑
                request.SetNotifyUrl("http://XXXXXXXXX/foxconn/AliPayment/AppPaymentNotify");//服務器異步通知頁面路徑
                request.BizContent = "{" +
                "    \"body\":\"\"," +
                "    \"subject\":\"" + order.訂單名稱述 + "\"," +
                "    \"out_trade_no\":\"" + order.訂單編號 + "\"," +
                "    \"timeout_express\":\"90m\"," +
                "    \"total_amount\":\"" + order.訂單金額 + "\"," +
                "    \"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>接收支付寶同步通知(get)

        /// <summary>
        /// 支付寶手機網站支付同步通知
        /// </summary>
        /// <returns></returns>
        [HttpGet]
        public ActionResult AppPaymentReturn()
        {
            string result = string.Empty;
            Log.Info(this.GetType().ToString(), "AppPaymentReturn End......");

            try
            {
                SortedDictionary<string, string> sPara = GetRequestGet();//將異步通知中收到的所有參數都存放到map中
                if (sPara.Count > 0)//判斷是否有帶返回參數
                {
                    bool verifyResult = AlipaySignature.RSACheckV1(sPara, _aliPaymentSettings.App_Alipay_Public_Key, _aliPaymentSettings.App_Charset, _aliPaymentSettings.App_SignType, false); //調用SDK驗證簽名
                    if (verifyResult)
                    {
                        //驗簽成功后，按照支付結果異步通知中的描述，對支付結果中的業務內容進行二次校驗，校驗成功后在response中返回success並繼續商戶自身業務處理，校驗失敗返回failure
                        //商戶訂單號
                        string out_trade_no = Request.QueryString["out_trade_no"];
                        //支付寶交易號
                        string trade_no = Request.QueryString["trade_no"];
                        //交易狀態
                        string trade_status = Request.QueryString["trade_status"];

                        if (Request.QueryString["trade_status"] == "TRADE_FINISHED" || Request.QueryString["trade_status"] == "TRADE_SUCCESS")
                        {
                            //判斷該筆訂單是否在商戶網站中已經做過處理
                            //如果沒有做過處理，根據訂單號（out_trade_no）在商戶網站的訂單系統中查到該筆訂單的詳細，並執行商戶的業務程序
                            //如果有做過處理，不執行商戶的業務程序
                        }
                        else
                        {
                            result = "trade_status=" + Request.QueryString["trade_status"];
                        }

                        //打印頁面
                        result = "驗證成功";
                    }
                    else//驗證失敗
                    {
                        //驗簽失敗則記錄異常日志，並在response中返回failure.
                        result = "驗證失敗";
                    }
                }
                else
                {
                    result = "無返回參數";
                }
                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 跳轉頁面;
        }

3>接收支付寶異步通知(post)

        /// <summary>
        /// 支付寶手機網站支付異步通知
        /// </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)//判斷是否有帶返回參數
                {
                    bool verifyResult = AlipaySignature.RSACheckV1(sPara, _aliPaymentSettings.App_Alipay_Public_Key, _aliPaymentSettings.App_Charset, _aliPaymentSettings.App_SignType, false); //調用SDK驗證簽名
                    Log.Info(this.GetType().ToString(), "verifyResult:" + verifyResult);

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

                        //商戶訂單號
                        string out_trade_no = Request.Form["out_trade_no"];
                        //支付寶交易號
                        string trade_no = Request.Form["trade_no"];
                        //交易狀態
                        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("商戶訂單號不能為空");
                        }
                        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")
                        {
                            //判斷該筆訂單是否在商戶網站中已經做過處理
                            //如果沒有做過處理，根據訂單號（out_trade_no）在商戶網站的訂單系統中查到該筆訂單的詳細，並執行商戶的業務程序
                            //請務必判斷請求時的total_fee、seller_id與通知時獲取的total_fee、seller_id為一致的
                            //如果有做過處理，不執行商戶的業務程序


                            //處理業務邏輯  


                            //注意：
                            //退款日期超過可退款期限后（如三個月可退款），支付寶系統發送該交易狀態通知
                        }
                        else if (trade_status == "TRADE_SUCCESS")
                        {
                            //判斷該筆訂單是否在商戶網站中已經做過處理
                            //如果沒有做過處理，根據訂單號（out_trade_no）在商戶網站的訂單系統中查到該筆訂單的詳細，並執行商戶的業務程序
                            //請務必判斷請求時的total_fee、seller_id與通知時獲取的total_fee、seller_id為一致的
                            //如果有做過處理，不執行商戶的業務程序

                            if (isRefund)
                            {
                                //處理退款業務
                                Log.Info(this.GetType().ToString(), "退款成功");
                            }
                            else
                            {
                                //處理訂單業務
                                Log.Info(this.GetType().ToString(), "付款成功");
                            }

                            //注意：
                            //付款完成后，支付寶系統發送該交易狀態通知
                        }
                        else if (trade_status == "TRADE_CLOSED")//未付款交易超時關閉，或支付完成后全額退款
                        {
                            if (isRefund)
                            {
                                //處理退款業務
                                Log.Info(this.GetType().ToString(), "退款成功");
                            }
                        }

                        //——請根據您的業務邏輯來編寫程序（以上代碼僅作參考）——

                        Response.Write("success");  //請不要修改或刪除
                        /////////////////////////////////////////////////////////////////////////////////////////////////////////////
                    }
                    else//驗證失敗
                    {
                        Response.Write("failure");
                    }
                }
                else
                {
                    Response.Write("無通知參數");
                    Log.Info(this.GetType().ToString(), "result:無通知參數");
                }
            }
            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(退款實體 refundModel)
        {
            var result = false;
            if (refundModel == null)
            {
                Log.Error(this.GetType().ToString(), "退款數據不能為空");            
                return result;
            }
            string responseText = string.Empty;
            try
            {
                #region 調用支付寶退款接口

                AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();//創建API對應的request類
                //request.SetNotifyUrl(_alipayPaymentSettings.App_RefundNotifyUrl);//服務器異步通知頁面路徑
                string batch_no = refundModel.退款編號;
                request.BizContent = "{" +
                "    \"out_trade_no\":\"" + refundModel.訂單編號 + "\"," +
                "    \"trade_no\":\"" + refundModel.交易號 + "\"," +
                "    \"out_request_no\":\"" + batch_no + "\"," +
                "    \"refund_amount\":\"" + refundModel.退款金額 + "\"" +
                "  }";//設置業務參數
                AlipayTradeRefundResponse response = _client.Execute(request);//通過alipayClient調用API，獲得對應的response類                
                //根據response中的結果繼續業務邏輯處理

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

            return result;
        }

查詢接口：

        /// <summary>
        /// 查詢訂單在支付寶的狀態
        /// </summary>
        /// <param name="queryOrderRequest"></param>
        /// <returns></returns>
        private bool AlipayTradeWapQuery(訂單查詢實體 queryOrder)
        {
            var result = false;
            if (queryOrder == null)
            {
                Log.Error(this.GetType().ToString(), "查詢數據不能為空");
                return result;
            }

            Log.Info(this.GetType().ToString(), "AlipayTradeWapQuery Start......");
            string responseText = string.Empty;
            try
            {
                #region 調用支付寶支付查詢接口

                AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();
                request.BizContent = "{" +
                "    \"out_trade_no\":\"" + queryOrder.訂單編號 + "\"," +
                "    \"trade_no\":\"" + queryOrder.交易號 + "\"" +
                "  }";
                AlipayTradeQueryResponse response = _client.Execute(request);
                string tradeStatus = response.TradeStatus;
                responseText = tradeStatus;
                if (tradeStatus == "TRADE_SUCCESS" || tradeStatus == "TRADE_CLOSED" || tradeStatus == "TRADE_FINISHED")
                {
                    //處理支付業務
                    result=true;
                    Log.Info(this.GetType().ToString(), "支付成功");
                }
                else
                {
                    Log.Info(this.GetType().ToString(), "支付失敗");
                }
                #endregion
            }
            catch (Exception ex)
            {
                responseText = ex.Message;
                Log.Error(this.GetType().ToString(), "Exception: " + ex.Message);
            }
            Log.Debug(this.GetType().ToString(), string.Format("支付寶手機網站支付查詢跟蹤信息。GetForm：{0}", responseText);
            Log.Info(this.GetType().ToString(), "AlipayTradeWapQuery End......");

            return result;
        }