开发准备在上篇文章已经介绍 >>看这里 << 这篇文章说下Demo示例。
1. 开发流程图这里再贴一下（很重要）：
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2. 前端页面
2.1 代码
PayPal支付SandBox演示
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2.2 选择PayPal支付后，JS提交支付信息给BratinTree服务器获取nonce及相关信息，页面如下：
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2.3 JS中获取nonce及相关信息调试截图如下：
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2.4 这里确认信息后选择PayPal支付，会转到后端去进行支付操作。
3. 后端
3.1 PayPalController
public class PayPalController : Controller
{
PayPalAPI payPalAPI = new PayPalAPI();
public ActionResult Index()
{
return View();
}//获取TOKEN
public string GetPayPalClienToken()
{
ViewBag.ClientToken = payPalAPI.GetPayPalClientToken();
return payPalAPI.GetPayPalClientToken();
}public string SendNonce()
{
decimal amount=0.0m;
//获取收货地址信息
ShippingAddress shippingAddress = new ShippingAddress();
try
{
amount =Convert.ToDecimal(Request["amount"]);
shippingAddress = new ShippingAddress {
FirstName = Request["FirstName"],
LastName= Request["LastName"],
Email= Request["Email"],
City= Request["City"],
Line1= Request["Line1"],
Line2= Request["Line2"],
PostalCode= Request["PostalCode"]
};
}
catch (FormatException e)
{
return e.Message;
}//获取nonce
var nonce = Request["payment_method_nonce"];
return payPalAPI.SendNonce(amount, nonce, shippingAddress);
}
}
3.2 PayPalAPI
public class PayPalAPI
{
#region Files
private string Environment { get;
set;
}
private string MerchantId { get;
set;
}
private string PublicKey { get;
set;
}
private string PrivateKey { get;
set;
}
#endregion//Create Braintree Gateway Braintree网关初始化
public BraintreeGateway CreateGateway()
{
Environment = System.Environment.GetEnvironmentVariable("BraintreeEnvironment");
MerchantId = System.Environment.GetEnvironmentVariable("BraintreeMerchantId");
PublicKey = System.Environment.GetEnvironmentVariable("BraintreePublicKey");
PrivateKey = System.Environment.GetEnvironmentVariable("BraintreePrivateKey");
if (MerchantId == null || PublicKey == null || PrivateKey == null)
{
Environment = ConfigurationManager.AppSettings["BraintreeEnvironment"];
MerchantId = ConfigurationManager.AppSettings["BraintreeMerchantId"];
PublicKey = ConfigurationManager.AppSettings["BraintreePublicKey"];
PrivateKey = ConfigurationManager.AppSettings["BraintreePrivateKey"];
}
return new BraintreeGateway(Environment, MerchantId, PublicKey, PrivateKey);
}//Get PayPal TOKEN
public string GetPayPalClientToken()
{
BraintreeGateway gateway = CreateGateway();
string ClientToken = gateway.ClientToken.Generate();
return ClientToken;
}//支付
public string SendNonce(decimal amount, string nonce, ShippingAddress shippingAddress)
{
BraintreeGateway gateway = CreateGateway();
var request = new TransactionRequest
{
Amount = amount,
PaymentMethodNonce = nonce,
Options = new TransactionOptionsRequest
{
SubmitForSettlement = true
},
ShippingAddress = new AddressRequest
{
FirstName = shippingAddress.FirstName,
LastName = shippingAddress.LastName,
PostalCode= shippingAddress.PostalCode,
StreetAddress= shippingAddress.Line1+ shippingAddress.Line2,
}
};
//网关支付
Result result = gateway.Transaction.Sale(request);
//支付成功
if (result.IsSuccess())
{
Transaction transaction = result.Target;
}
else if (result.Transaction != null)
{
return "Transaction is null,Id=" + result.Transaction.Id;
}
else
{
string errorMessages = "";
foreach (ValidationError error in result.Errors.DeepAll())
{
errorMessages += "Error: " + (int)error.Code + " - " + error.Message + "\n";
}
return errorMessages;
}
return "支付完成！";
}
}
【Braintree PayPal 支付网关开发（二）】4. 整体流程
5. Braintree sandbox中的交易记录：
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6. 源码：https://github.com/wangqilong1225/BratinTree_PayPal_Demo
