Adyen生产环境Web Drop-In无法加载支付表单求助

已基于Adyen官方文档和.NET示例仓库完成集成，测试环境可正常处理卡交易，但切换到生产环境后，调用_checkout.Sessions(sessionsRequest)时触发以下错误：

{System.Net.WebException: The remote name could not be resolved: 'https'" & vbCrLf & "   at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context)" & vbCrLf & "   at System.Net.HttpWebRequest.GetRequestStream()" & vbCrLf & "   at Adyen.HttpClient.HttpUrlConnectionClient.Request(String endpoint, String json, Config config, Boolean isApiKeyRequired, RequestOptions requestOptions)" & vbCrLf & "   at Adyen.Service.ServiceResource.Request(String json, RequestOptions requestOptions)" & vbCrLf & "   at Adyen.Service.Checkout.Sessions(CreateCheckoutSessionRequest createCheckoutSessionRequest)" & vbCrLf & "   at clients_site.Confirm.GetPaymentForm() in C:\www\Confirm.aspx.vb:line 70}

已完成的配置：

• 正确设置liveEndpointUrlPrefix、生产环境API密钥
• 已将站点添加至API凭证的允许来源列表
• 测试环境可正常加载支付表单

相关代码如下：

<WebMethod(EnableSession:=True), ScriptMethod()>
Public Shared Function GetPaymentForm() As Object

    Dim orderId As String = HttpContext.Current.Session("OrderID")

    Dim _connString As String = Config.StrWebConnection()
    Dim cart As New ShoppingCart(_connString)
    Dim dt = cart.GetOrderInfo(orderId)

    Dim isGlobal = IsGlobalSite(Config.SiteUrl)
    Dim liveEndpointUrlPrefix = If(Config.LiveEndpointUrlPrefix = "", Nothing, Config.LiveEndpointUrlPrefix)
    Dim env = If(Int32.Parse(Config.AdyenEnvironment) = 0, Model.Enum.Environment.Test, Model.Enum.Environment.Live)

    Dim clientCheckout = New Client(Config.ApiKey, env, liveEndpointUrlPrefix)
    Dim _checkout = New Checkout(clientCheckout)

    Dim cartTotal = Utilities.SanitizeCurrency(GetCartTotal(orderId, HttpContext.Current.Session("user_name")))

    Dim sessionsRequest = New CreateCheckoutSessionRequest()

    sessionsRequest.MerchantAccount = Config.MerchantAccount(0)
    sessionsRequest.MerchantOrderReference = orderId
    Dim Amount = New Amount("USD", Convert.ToInt64(String.Format("{0:f2}", cartTotal).Replace(".", String.Empty)))
    sessionsRequest.Amount = Amount
    sessionsRequest.DeliverAt = DateTime.Parse(DateTime.Now.AddDays(3).ToString("yyyy-MM-dd"))
    sessionsRequest.ExpiresAt = DateTime.Parse(DateTime.Now.AddDays(1).ToString("yyyy-MM-ddTHH:mm:ssK"))
    sessionsRequest.ShopperEmail = dt.Email
    sessionsRequest.ShopperLocale = "en-us"

    sessionsRequest.ShopperReference = HttpContext.Current.Session("ShopperReference").ToString().ToUpper()
    sessionsRequest.Channel = PaymentRequest.ChannelEnum.Web
    sessionsRequest.Reference = String.Format("ClientSite_{0}", orderId)
    sessionsRequest.RecurringProcessingModel = CreateCheckoutSessionRequest.RecurringProcessingModelEnum.CardOnFile 'req.IsRecurring ? CreateCheckoutSessionRequest.RecurringProcessingModelEnum.Subscription : CreateCheckoutSessionRequest.RecurringProcessingModelEnum.CardOnFile;
    sessionsRequest.EnableRecurring = False 'req.IsRecurring
    sessionsRequest.EnableOneClick = True '!req.IsRecurring

    'required for 3ds2 redirect flow
    sessionsRequest.ReturnUrl = Config.SiteUrl & "/Confirm.aspx?"

    Dim json As String
    Try
        Dim CreateCheckoutSessionResponse = _checkout.Sessions(sessionsRequest)
        json = CreateCheckoutSessionResponse.ToJson()
    Catch ex As Exception
        Console.WriteLine(ex.Message)
        System.Diagnostics.Debug.WriteLine(ex.Message)
        Return 0
    End Try
    Return json
End Function

排查方向 #

• liveEndpointUrlPrefix配置校验：确认该值格式为live-xxxxxx（不含https://或域名），若配置中误加https字符串，会导致客户端拼接出无效的API端点URL，触发DNS解析错误。
• 生产网络连通性：检查服务器是否能访问Adyen生产域名（如live.adyen.com），排查防火墙、代理或DNS解析是否阻止了外部请求。
• 客户端初始化参数：验证env是否正确设置为Model.Enum.Environment.Live，确保客户端切换到生产端点模板；同时确认生产API密钥无误。
• 端点URL日志排查：在代码中添加日志输出客户端生成的完整API端点，确认是否存在格式错误（如https://https/...这类无效地址）。

内容的提问来源于stack exchange，提问作者Intermediary Developer