Paypal 贝宝自动返回不工作

自动返回已启用，捐款将被张贴，但用户必须单击黄色的“返回协调员”按钮才能返回。如果您认为这段代码有任何错误，请告诉我

另外，我不想使用自定义按钮

<form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post">                    
    <!-- Identify your business so that you can collect the payments. -->                    
    <input type="hidden" name="business" value="email@gmail.com">                    
    <!-- Specify a Donate button. -->                    
    <input type="hidden" name="cmd" value="_donations">                    
    <!-- Specify details about the contribution -->                    
    <input type="hidden" name="item_name" value="@Resources.Donations.Strings.ThankYou">                    
    <input type="hidden" name="return" value="http://www.return.com/thankyou"/>                    
    <input type="hidden" name="cancel_return" value="http://www.return.com/cancel"/>                    
    <input type="hidden" name="rm" value="2"/>                    
    <input type="hidden" name="item_number" value="5.00">                     
    <select name="amount" onchange="$('input[name=item_number]').val($(this).val())">                        
        <option value="1.00">$1.00</option>                            
        <option value="5.00" selected>$5.00</option>                        
        <option value="10.00">$10.00</option>                        
        <option value="15.00">$15.00</option>                        
        <option value="25.00">$25.00</option>                        
        <option value="50.00">$50.00</option>                        
        <option value="">@Resources.Donations.Labels.Other</option>                    
    </select>                    
    <input type="hidden" name="currency_code" value="USD">                    
    <!-- Display the payment button. -->                    
    <button type="submit" name="submit" class="btn btn-large btn-paypal"></button>                
</form> 

$1.00                            
$5.00                        
$10.00                        
$15.00                        
$25.00                        
$50.00                        
@资源、捐赠、标签、其他

正如Andrew所建议的，我重构了代码以使用IPN。以下是我开始使用的一些代码。。这是一些带有日志记录的代码，可以帮助您开始

HTML格式：

<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
    <!-- Identify your business so that you can collect the payments. -->
    <input type="hidden" name="business" value="donations@myemail.org">
    <!-- Specify a Donate button. -->
    <input type="hidden" name="cmd" value="_donations">
    <!-- Specify details about the contribution -->
    <input type="hidden" name="item_name" value="@Resources.Donations.Strings.ThankYou">
    <input type="hidden" name="return" value="auto_return_url_here"/>
    <input type="hidden" name="notify_url" value="IPN_notify_url_here"/>
    <input type="hidden" name="cancel_return" value="user_clicked_cancel_url_here"/>
    <input type="hidden" name="rm" value="2" />
    <input type="hidden" name="item_number" value="5.00">
    <select name="amount" onchange="$('input[name=item_number]').val($(this).val())">
        <option value="1.00">$1.00</option>
        <option value="5.00" selected>$5.00</option>
        <option value="10.00">$10.00</option>
        <option value="15.00">$15.00</option>
        <option value="25.00">$25.00</option>
        <option value="50.00">$50.00</option>
        <option value="">Other</option>
    </select>
    <input type="hidden" name="currency_code" value="USD">
    <!-- Display the payment button. -->
    <button type="submit" name="submit" class="btn btn-large btn-paypal"></button>
</form>

以下是具有变量名的PayPalmModel：

public class PayPalModel
    {
        public string mc_gross { get; set; }
        public string protection_eligibility { get; set; }
        public string address_status { get; set; }
        public string payer_id { get; set; }
        public string tax { get; set; }
        public string address_street { get; set; }
        public string payment_date { get; set; }
        public string payment_status { get; set; }
        public string charset { get; set; }
        public string address_zip { get; set; }
        public string first_name { get; set; }
        public string address_country_code { get; set; }
        public string address_name { get; set; }
        public string notify_version { get; set; }
        public string custom { get; set; }
        public string payer_status { get; set; }
        public string address_country { get; set; }
        public string address_city { get; set; }
        public string quantity { get; set; }
        public string payer_email { get; set; }
        public string verify_sign { get; set; }
        public string txn_id { get; set; }
        public string payment_type { get; set; }
        public string payer_business_name { get; set; }
        public string last_name { get; set; }
        public string address_state { get; set; }
        public string receiver_email { get; set; }
        public string pending_reason { get; set; }
        public string txn_type { get; set; }
        public string item_name { get; set; }
        public string mc_currency { get; set; }
        public string item_number { get; set; }
        public string residence_country { get; set; }
        public string test_ipn { get; set; }
        public string transaction_subject { get; set; }
        public string payment_gross { get; set; }
        public string merchant_return_link { get; set; }
        public string auth { get; set; }
        public string ipn_track_id { get; set; }
    }

---

您是否在PayPal帐户中启用了自动返回功能，并在此处包含参数？你确定你等得够久吗？即使启用AR，返回也可能需要5-10秒。请注意，如果您的返回URL上出现任何支付后处理代码，您将希望将其移动到IPN脚本中，以便始终保证运行。嗨，Andrew。是的，AR是启用的（只是检查了一下，它是启用的），并且没有特殊的后处理，除了异步地将事务细节保存在数据库中，这样客户端就不会被延迟。现在我将AR URL更改为其他内容（在域内），但仍然没有发生任何事情。AR URL必须是HTTPS吗？当我点击“返回捐款协调员”按钮时，Firefox向我发出警告，并说连接已加密，“你确定要重定向”之类的话。。

public class PayPalModel
    {
        public string mc_gross { get; set; }
        public string protection_eligibility { get; set; }
        public string address_status { get; set; }
        public string payer_id { get; set; }
        public string tax { get; set; }
        public string address_street { get; set; }
        public string payment_date { get; set; }
        public string payment_status { get; set; }
        public string charset { get; set; }
        public string address_zip { get; set; }
        public string first_name { get; set; }
        public string address_country_code { get; set; }
        public string address_name { get; set; }
        public string notify_version { get; set; }
        public string custom { get; set; }
        public string payer_status { get; set; }
        public string address_country { get; set; }
        public string address_city { get; set; }
        public string quantity { get; set; }
        public string payer_email { get; set; }
        public string verify_sign { get; set; }
        public string txn_id { get; set; }
        public string payment_type { get; set; }
        public string payer_business_name { get; set; }
        public string last_name { get; set; }
        public string address_state { get; set; }
        public string receiver_email { get; set; }
        public string pending_reason { get; set; }
        public string txn_type { get; set; }
        public string item_name { get; set; }
        public string mc_currency { get; set; }
        public string item_number { get; set; }
        public string residence_country { get; set; }
        public string test_ipn { get; set; }
        public string transaction_subject { get; set; }
        public string payment_gross { get; set; }
        public string merchant_return_link { get; set; }
        public string auth { get; set; }
        public string ipn_track_id { get; set; }
    }