我有以下示例可以调用 PayPal 的 REST API 进行付款。这很好用，但我想将它用于我的新 MVC 应用程序。我想它需要适应使用 MVC 辅助方法，例如 RedirectToAction 而不是 Server.Transfer 等。
是否有人已经将此示例转换为在 MVC4 控制器操作中运行？
// ###Payer
// A resource representing a Payer that funds a payment
// Payment Method
// as `paypal`
Payer payr = new Payer();
payr.payment_method = "paypal";
Random rndm = new Random();
var guid = Convert.ToString(rndm.Next(100000));
string baseURI = Request.Url.Scheme + "://" + Request.Url.Authority + "/PaymentWithPayPal.aspx?";
// # Redirect URLS
RedirectUrls redirUrls = new RedirectUrls();
redirUrls.cancel_url = baseURI + "guid=" + guid;
redirUrls.return_url = baseURI + "guid=" + guid;
// ###Details
// Let's you specify details of a payment amount.
Details details = new Details();
details.tax = "15";
details.shipping = "10";
details.subtotal = "75";
// ###Amount
// Let's you specify a payment amount.
Amount amnt = new Amount();
amnt.currency = "USD";
// Total must be equal to sum of shipping, tax and subtotal.
amnt.total = "100";
amnt.details = details;
// ###Transaction
// A transaction defines the contract of a
// payment - what is the payment for and who
// is fulfilling it. Transaction is created with
// a `Payee` and `Amount` types
List<Transaction> transactionList = new List<Transaction>();
Transaction tran = new Transaction();
tran.description = "Transaction description.";
tran.amount = amnt;
// The Payment creation API requires a list of
// Transaction; add the created `Transaction`
// to a List
transactionList.Add(tran);
// ###Payment
// A Payment Resource; create one using
// the above types and intent as 'sale'
pymnt = new Payment();
pymnt.intent = "sale";
pymnt.payer = payr;
pymnt.transactions = transactionList;
pymnt.redirect_urls = redirUrls;
try
{
// ###AccessToken
// Retrieve the access token from
// OAuthTokenCredential by passing in
// ClientID and ClientSecret
// It is not mandatory to generate Access Token on a per call basis.
// Typically the access token can be generated once and
// reused within the expiry window
string accessToken = new OAuthTokenCredential(ConfigManager.Instance.GetProperties()["ClientID"], ConfigManager.Instance.GetProperties()["ClientSecret"]).GetAccessToken();
// ### Api Context
// Pass in a `ApiContext` object to authenticate
// the call and to send a unique request id
// (that ensures idempotency). The SDK generates
// a request id if you do not pass one explicitly.
APIContext apiContext = new APIContext(accessToken);
// Use this variant if you want to pass in a request id
// that is meaningful in your application, ideally
// a order id.
// String requestId = Long.toString(System.nanoTime();
// APIContext apiContext = new APIContext(accessToken, requestId ));
// Create a payment by posting to the APIService
// using a valid AccessToken
// The return object contains the status;
Payment createdPayment = pymnt.Create(apiContext);
CurrContext.Items.Add("ResponseJson", JObject.Parse(createdPayment.ConvertToJson()).ToString(Formatting.Indented));
var links = createdPayment.links.GetEnumerator();
while (links.MoveNext())
{
Links lnk = links.Current;
if (lnk.rel.ToLower().Trim().Equals("approval_url"))
{
CurrContext.Items.Add("RedirectURL", lnk.href);
}
}
Session.Add(guid, createdPayment.id);
}
catch (PayPal.Exception.PayPalException ex)
{
CurrContext.Items.Add("Error", ex.Message);
}
}
CurrContext.Items.Add("RequestJson", JObject.Parse(pymnt.ConvertToJson()).ToString(Formatting.Indented));
Server.Transfer("~/Response.aspx");