购物车上的 PayPal 快速结账

Question

我希望实现：

所以在我的购物车页面中我设置会话（“Payment_Amount”）=总计 并下载了向导告诉我的两个 asp 文件。 expresschecout.asp 和 paypalfunctions.asp。并将 API 凭据添加到正确的位置。 我从他们的向导中添加表单：

<form action='expresscheckout.asp' METHOD='POST'>
<input type='image' name='submit' src='https://www.paypal.com/en_US/i/btn/btn_xpressCheckout.gif' border='0' align='top' alt='Check out with PayPal'/>
</form>

但是当我进入购物车并按 paypal 提交按钮时，我会被带到expressheckout.asp，但页面保持白色，状态栏中显示“完成”。我该如何调试呢？ :/

编辑添加我的代码，ASP：

<!-- #include file ="paypalfunctions.asp" -->
<%
' ==================================
' PayPal Express Checkout Module
' ==================================

On Error Resume Next

'------------------------------------
' The paymentAmount is the total value of 
' the shopping cart, that was set 
' earlier in a session variable 
' by the shopping cart page
'------------------------------------
paymentAmount = Session("Payment_Amount")

'------------------------------------
' The currencyCodeType and paymentType 
' are set to the selections made on the Integration Assistant 
'------------------------------------
currencyCodeType = "USD"
paymentType = "Sale"

'------------------------------------
' The returnURL is the location where buyers return to when a
' payment has been succesfully authorized.
'
' This is set to the value entered on the Integration Assistant 
'------------------------------------
returnURL = "http://www.noamsm.co.il/index.asp"

'------------------------------------
' The cancelURL is the location buyers are sent to when they click the
' return to XXXX site where XXX is the merhcant store name
' during payment review on PayPal
'
' This is set to the value entered on the Integration Assistant 
'------------------------------------
cancelURL = "http://www.noamsm.co.il/index.asp"

'------------------------------------
' Calls the SetExpressCheckout API call
'
' The CallShortcutExpressCheckout function is defined in the file PayPalFunctions.asp,
' it is included at the top of this file.
'-------------------------------------------------
Set resArray = CallShortcutExpressCheckout (paymentAmount, currencyCodeType, paymentType, returnURL, cancelURL)

ack = UCase(resArray("ACK"))
If ack="SUCCESS" Then
    ' Redirect to paypal.com
    ReDirectURL( resArray("TOKEN") )
Else  
    'Display a user friendly Error on the page using any of the following error information returned by PayPal
    ErrorCode = URLDecode( resArray("L_ERRORCODE0"))
    ErrorShortMsg = URLDecode( resArray("L_SHORTMESSAGE0"))
    ErrorLongMsg = URLDecode( resArray("L_LONGMESSAGE0"))
    ErrorSeverityCode = URLDecode( resArray("L_SEVERITYCODE0"))
End If
%>

我猜我从底部收到错误之一，但找不到在哪里可以看到 thm..

Answer 1

目前尚不清楚您遇到的具体问题是什么，但以下是您需要完成的事件顺序才能使用 PayPal 快速结账付款方式。这一系列事件的上下文将是您的购物车或快速结帐按钮所在的任何页面。

• 创建 ExpressCheckOut 类的实例

• 设置 ExpressCheckOut 类的 ApiSignature、UserName、Password、Environment、APIVersion、OrderAmount、OrderItemDetails、CancelUrl、ReturnUrl。

  >

• 调用 ExpressCheckout 并获取 ExpressCheckoutResponse。

• 检查 ExpressCheckoutResponse 对象是否成功或失败。

• 如果成功，则使用您从 ExpressCheckoutResponse 对象收到的令牌将用户重定向到正确的 PayPal 端点。

  如果成功，

希望这能让您清楚地了解如何正确使用此 PayPal api。

享受！