ASP.NET 付款后收到来自paypal的查询字符串

Question

我创建了一个允许用户通过 PayPal 付款的按钮，并且可以使用，然而，当我回到我的页面时，我没有收到 url 查询字符串来捕获 。

这是当前代码：

<form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top">
  <button class="ato4" name="submit" type="image" onmouseover="this.style.backgroundColor='#CCC9BD';return true;" onmouseout="this.style.backgroundColor='rgba(79,129,189,0.5)';return true;" style="cursor:pointer;float:right;margin-right:490px;">
    <input type="hidden" name="cmd" value="_s-xclick">    
    <input type="hidden" name="hosted_button_id" value="V84TB5GYULLYC">
    <font class="shadowfilter">תשלום דרך האינטרנט
      <br>
      <font style="color:green;">PAYPAL</font>
    </font>
  </button>
</form>

如何让 paypal 自动重定向到我的网站，而无需按 PayPal 在其网站上的 return 按钮？

显然有一个选项可以让所有页面自动 return 到 -> url 。好吧，它不如单个页面好，但它给出了结果

Answer 1

您必须在您的 PayPal 帐户中启用自动 return，否则它将忽略 return 字段。

来自文档（已更新以反映新布局）：

Auto Return is turned off by default. To turn on Auto Return:

Log in to your PayPal account at https://www.paypal.com. The My Account Overview page appears.

Click the Profile subtab. The Profile Summary page appears.

Click the My Selling Tools link in the left column.

Under the Selling Online section, click the Update link in the row for Website Preferences. The Website Payment Preferences page appears

Under Auto Return for Website Payments, click the On radio button to enable Auto Return.

In the Return URL field, enter the URL to which you want your payers redirected after they complete their payments. NOTE: PayPal checks the Return URL that you enter. If the URL is not properly formatted or cannot be validated, PayPal will not activate Auto Return.

Scroll to the bottom of the page, and click the Save button.

IPN 用于即时付款通知。它将为您提供比自动 return.

更多的 reliable/useful 信息

IPN 文档在此处：https://www.x.com/sites/default/files/ipnguide.pdf

IPN 联机文档：https://developer.paypal.com/docs/classic/ipn/gs_IPN/

一般的程序是你在请求中传递一个notify_url参数，并设置一个页面来处理和验证IPN通知，PayPal会在[=31]时向该页面发送请求以通知你=].经过。该 IPN 处理程序页面将是更新数据库以将订单标记为已支付的正确位置。

参考：Setting PayPal return URL and making it auto return?

ASP.NET 付款后收到来自paypal的查询字符串

ASP.NET receive a query string from paypal after payment

paypal

return-value

asp-classic

query-string