使用javascript重定向时，Paypal付款无效？

时间：2015-07-10 13:09:31

标签： c# asp.net-mvc paypal

我在Paypal SDK REST，ASP.NET MVC 5（C＃）和javascript重定向方面遇到了问题。

我正在创建所有必需的组件（ItemList，Address，Details，Amount，...）来为PayPal制作付款对象（不使用信用卡，因此FundingInstruments为空）。在创建之后，我使用带有JavaScript重定向的View到URL Payment对象给我的。但每次我看到“交易无效......”

但是，如果我手动将URL（“https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token= ...”）复制/粘贴到我的浏览器，它就可以了！我疯了......

请你有解决方案吗？ （查找包含c＃文件，json格式的付款和小的html重定向组件）

  1. C＃Payment Class
    2.   

    使用System;       使用System.Collections.Generic;       使用System.Linq;       使用System.Web;       使用PayPal;       使用PayPal.Api;       使用System.Configuration;       使用System.Threading; 

    namespace WizziqWebApp.Paypal
{
    public class PaymentService
    {
        public enum EPaymentMethod { Paypal, CreditCard };
        public static readonly Dictionary<EPaymentMethod, string> PaymentMethods = new Dictionary<EPaymentMethod, string>() {
            { EPaymentMethod.Paypal, "paypal" },
            { EPaymentMethod.CreditCard, "credit_card" }
        };

        private OAuthTokenCredential _authToken;
        private APIContext _api;

        public Payment CreatePayment(Models.OrderModel order, EPaymentMethod paymentMethod, string cancelUrl, string returnUrl)
        {
            ItemList itemList = CreateItemList(order.shoppingCart);            
            //itemList.shipping_address = (ShippingAddress) CreateDeliveryAddress(order.fullRegisterModel);            
            Address InvoicingAddress = CreateInvoiceAddress(order.fullRegisterModel);            
            Details details = CreatePaymentDetails(order.shoppingCart);
            Amount amount = CreateAmount(order.shoppingCart, details);

            Payer payer = null;
            if (paymentMethod == EPaymentMethod.CreditCard)
            {
                CreditCard creditCard = CreateCreditCard(InvoicingAddress);
                FundingInstrument fundingInstrument = CreateCreditCardFundingInstrument(creditCard);
                List<FundingInstrument> lst = new List<FundingInstrument>();
                lst.Add(fundingInstrument);
                payer = CreatePayerCreditCard(lst);
            }
            else if (paymentMethod == EPaymentMethod.Paypal)
            {
                payer = CreatePayerPaypal();
            }

            var transactionList = new List<Transaction>();
            Transaction transaction = CreateTransaction(amount, itemList, order);
            transactionList.Add(transaction);


            var payment = new Payment
            {
                transactions = transactionList,
                intent = "sale",
                payer = payer,
                redirect_urls = new RedirectUrls
                {
                    cancel_url = cancelUrl,
                    return_url = returnUrl
                }
            };

            payment = payment.Create(this.Api);

            System.IO.File.WriteAllText(@"d:\devel\PaymentObject.json",
         

    payment.ConvertToJson()); 

                return payment;
        }

        public Payment ConfirmPayment(string token, string payerId)
        {
            var paymentExecution = new PaymentExecution
            {
                payer_id = payerId
            };

            var payment = new Payment { id = token };

            return payment.Execute(this.Api, paymentExecution);
        }

        private ItemList CreateItemList(Models.ShoppingCart Cart)
        {
            ItemList PaypalItemList = new ItemList();
            List<Item> itms = new List<Item>();

            if (Cart != null)
            {
                foreach (Models.ShoppingCartLine line in Cart.Lines)
                {
                    Item item = new Item();
                    item.name = line.Product.ArticleId;
                    item.currency = line.Currency.ShortCode;
                    item.price = line.UnitPrice.ToString("0.00", Thread.CurrentThread.CurrentCulture);
                    item.quantity = Convert.ToString(line.Quantity);
                    item.sku = line.Product.ArticleId;
                    itms.Add(item);
                }
            }

            PaypalItemList.items = itms;
            return PaypalItemList;
        }

        private Address CreateInvoiceAddress(Models.FullRegisterModel model)
        {
            Address Address = null;

            if (model != null && model.InvoicingAddress != null)
            {
                Address = new Address();
                Address.city = model.InvoicingAddress.City;
                Address.country_code = model.InvoicingAddress.Country;
                Address.line1 = model.InvoicingAddress.StreetAddress;
                Address.postal_code = model.InvoicingAddress.ZipCode;
                Address.state = model.InvoicingAddress.State;
            }

            return Address;
        }

        private ShippingAddress CreateDeliveryAddress(Models.FullRegisterModel model)
        {
            ShippingAddress Address = null;

            if (model != null && model.DeliveryAddress != null)
            {
                Address = new ShippingAddress();
                Address.city = model.DeliveryAddress.City;
                Address.country_code = model.DeliveryAddress.Country;
                Address.line1 = model.DeliveryAddress.StreetAddress;
                Address.postal_code = model.DeliveryAddress.ZipCode;
                Address.state = model.DeliveryAddress.State;
                Address.recipient_name = model.LastName + ", " + model.FirstName;
            }

            return Address;
        }

        private CreditCard CreateCreditCard(Address invoiceAddress) 
        {
            CreditCard creditCard = null;
            {
                creditCard = new CreditCard();
                creditCard.billing_address = invoiceAddress;
                creditCard.cvv2 = "874";  //card cvv2 number
                creditCard.expire_month = 4; //card expire date
                creditCard.expire_year = 2020; //card expire year
                creditCard.first_name = "Aman";
                creditCard.last_name = "Thakur";
                creditCard.number = "4032034438655220"; //enter your credit card number here
                creditCard.type = "visa"; //credit card type here paypal allows 4 types
            }
            return creditCard;
        }

        private Details CreatePaymentDetails(Models.ShoppingCart Cart)
        {
            Details details = null;
            if (Cart != null)
            {
                details = new Details();
                details.shipping = Convert.ToString(Cart.DeliveryFee.Total);
                details.subtotal = Convert.ToString(Cart.GetTotal());
                details.tax = "0";
            }
            return details;
        }

        private Amount CreateAmount(Models.ShoppingCart Cart, Details details)
        {
            var total = Cart.GetTotal() + Cart.DeliveryFee.Total + Convert.ToDecimal(details.tax);

            var amount = new Amount
            {
                currency = Cart.Currency.ShortCode,
                details = details,
                total = total.ToString()
            };

            return amount;
        }

        private Transaction CreateTransaction(Amount amount, ItemList itemList, Models.OrderModel model)
        {
            Transaction transaction = new Transaction();
            if (amount != null && itemList != null)
            {
                transaction.amount = amount;
                transaction.description = "WIZZIQ products";
                transaction.invoice_number = Convert.ToString(model.OrderNumber);
                transaction.item_list = itemList;
                //transaction.notify_url = "";
                //transaction.order_url = "";
            }
            return transaction;
        }

        private FundingInstrument CreateCreditCardFundingInstrument(CreditCard creditCard)
        {
            return new FundingInstrument()
            {
                credit_card = creditCard
            };
        }

        private Payer CreatePayerCreditCard(List<FundingInstrument> listFundingInstruments)
        {
            Payer payer = new Payer();
            if (listFundingInstruments != null)
            {
                payer.funding_instruments = listFundingInstruments;
                payer.payment_method = PaymentMethods[EPaymentMethod.CreditCard];
            }
            return payer;
        }

        private Payer CreatePayerPaypal()
        {
            Payer payer = new Payer();
            payer.payment_method = PaymentMethods[EPaymentMethod.Paypal];
            return payer;
        }

        private OAuthTokenCredential ApiAccessToken
        {
            get
            {
                if (this._authToken != null)
                {
                    return this._authToken;
                }

                var clientId = ConfigurationManager.AppSettings["clientId"];
                var secretToken = ConfigurationManager.AppSettings["secretToken"];
                var config = new Dictionary<string, string> { { "mode", "sandbox" } };

                this._authToken = new OAuthTokenCredential(clientId, secretToken, config);

                return this._authToken;
            }
        }

        private APIContext Api
        {
            get
            {
                return this._api ?? (this._api = new APIContext(this.ApiAccessToken.GetAccessToken()));
            }
        }
    }
}
    1. HTML重定向
      2. @{
    ViewBag.Title = "_Redirect";
    Layout = "~/Views/Shared/Layout/_LayoutEmpty.cshtml";
}

<div class="jumbotron">
    <div class="container">
        <h1>Please wait...</h1>
        <p>        
            <div class="popover-content">                
                    <div class="loading-circle"></div>
                    <div class="loading-circle1"></div>
                    <div class="small-title clr-wizziq text-center"><span>While redirecting to Paypal...</span></div>

            </div>
        </p>
    </div>
</div>

<script>
    setTimeout(function () {
        var url = '@ViewBag.RedirectUrl';
        alert('Redirect to: ' + url);
        window.location.href = url;
    }, 1000);
</script>
      1. JSON付款
        2. {  
   "id":"PAY-14N977666S5313604KWP4CGQ",
   "intent":"sale",
   "payer":{  
      "payment_method":"paypal",
      "payer_info":{  
         "shipping_address":{  

         }
      }
   },
   "transactions":[  
      {  
         "related_resources":[  

         ],
         "amount":{  
            "currency":"EUR",
            "total":"18033.45",
            "details":{  
               "subtotal":"18033.45"
            }
         },
         "description":"WIZZIQ products",
         "invoice_number":"4",
         "item_list":{  
            "items":[  
               {  
                  "quantity":"1",
                  "name":"IQREPAIRKIT",
                  "price":"1500.00",
                  "currency":"EUR",
                  "sku":"IQREPAIRKIT"
               },
               {  
                  "quantity":"3",
                  "name":"IQBUR010",
                  "price":"9.20",
                  "currency":"EUR",
                  "sku":"IQBUR010"
               },
               {  
                  "quantity":"1",
                  "name":"IQBUR016",
                  "price":"9.20",
                  "currency":"EUR",
                  "sku":"IQBUR016"
               },
               {  
                  "quantity":"250",
                  "name":"IQREP20INJ",
                  "price":"49.90",
                  "currency":"EUR",
                  "sku":"IQREP20INJ"
               },
               {  
                  "quantity":"1",
                  "name":"IQPOLISH",
                  "price":"3.75",
                  "currency":"EUR",
                  "sku":"IQPOLISH"
               },
               {  
                  "quantity":"2",
                  "name":"IQTRANSFO",
                  "price":"8.95",
                  "currency":"EUR",
                  "sku":"IQTRANSFO"
               },
               {  
                  "quantity":"5",
                  "name":"IQSTARTERKIT",
                  "price":"800.00",
                  "currency":"EUR",
                  "sku":"IQSTARTERKIT"
               }
            ]
         }
      }
   ],
   "state":"created",
   "create_time":"2015-07-10T12:56:58Z",
   "update_time":"2015-07-10T12:56:58Z",
   "links":[  
      {  
         "href":"https://api.sandbox.paypal.com/v1/payments/payment/PAY-14N977666S5313604KWP4CGQ",
         "rel":"self",
         "method":"GET"
      },
      {  
         "href":"https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-4HC32806NW4529238",
         "rel":"approval_url",
         "method":"REDIRECT"
      },
      {  
         "href":"https://api.sandbox.paypal.com/v1/payments/payment/PAY-14N977666S5313604KWP4CGQ/execute",
         "rel":"execute",
         "method":"POST"
      }
   ]
}

        非常感谢！我真的被卡住了......

1 个答案:

答案 0 :(得分：0)

为了记录，这是我如何解决它：

好的，这是我的错，重定向不是我预期的...要纠正它，不要忘记将RAZOR的URL放在RAW模式中:)。

<script>
    setTimeout(function () {
        var url = '**@Html.Raw(Model.Url)**';
        alert('Redirect to: ' + url);
        window.location.href = url;
    }, 1000);
</script>

无论如何，感谢Paypal团队试图提供帮助但为时已晚：）

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