我正在尝试使用Notifications Api实施Google Checkout，因为我想获取并将订单信息存储在我自己的数据库中。 Google Checkout已实施，订单已下达且付款已完成，但我无法收到来自Google Checkout的通知。 我已尝试过Google Checkout的商家帐户中的所有设置 http://surinder.computing-studio.com/ 并完成上面文章中列出的代码，但仍无法获取通知。 我在Merchant帐户的集成控制台中遇到的错误是：
我们在http://www.techieticket.co.uk/Notifications.aspx尝试访问您的服务器时遇到错误 - 我们得到的错误是
Send failed with code: 500. Response body was: <html> <head> <title>Data at the root level is invalid. Line 1, position 1.</title> <style> body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;} p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px} b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px} H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red } H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon } pre {font-family:"Lucida Console";font-size: .9em} .marker {font-weight: bold; color: black;text-decoration: none;} .version {color: gray;} .error {margin-bottom: 10px;} .expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; } </style> </head> <body bgcolor="white"> <span><H1>Server Error in '/' Application.<hr width=100% size=1 color=silver></H1> <h2> <i>Data at the root level is invalid. Line 1, position 1.</i> </h2></span> <font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif "> <b> Description: </b>An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. <br><br> <b> Exception Details: </b>System.Xml.XmlException: Data at the root level is invalid. Line 1, position 1.<br><br> <b>Source Error:</b> <br><br> <table width=100% bgcolor="#ffffcc"> <tr> <td> <code><pre> Line 14: RequestStream.Close(); Line 15: // Act on the XML. <font color=red>Line 16: switch (EncodeHelper.GetTopElement(RequestXml)) { </font>Line 17: case "new-order-notification": Line 18: NewOrderNotification N1 = (NewOrderNotification) EncodeHelper.Deserialize(RequestXml, typeof(NewOrderNotification));</pre></code> </td> </tr> </table> <br> <b> Source File: </b> d:\Sites\tech2\Notifications.aspx<b> Line: </b> 16 <br><br> <b>Stack Trace:</b> <br><br> <table width=100% bgcolor="#ffffcc"> <tr> <td> <code><pre> [XmlException: Data at the root level is invalid. Line 1, position 1.] System.Xml.XmlTextReaderImpl.Throw(Exception e) +76 System.Xml.XmlTextReaderImpl.Throw(String res, String arg) +126 System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace() +3975494 System.Xml.XmlTextReaderImpl.ParseDocumentContent() +187 System.Xml.XmlTextReaderImpl.Read() +151 System.Xml.XmlTextReader.Read() +15 GCheckout.Util.EncodeHelper.GetTopElement(Stream Xml) in C:\Work\googlecode\gcheckout\lib\Util\EncodeHelper.cs:148 GCheckout.Util.EncodeHelper.GetTopElement(Byte[] Xml) in C:\Work\googlecode\gcheckout\lib\Util\EncodeHelper.cs:88 GCheckout.Util.EncodeHelper.GetTopElement(String Xml) in C:\Work\googlecode\gcheckout\lib\Util\EncodeHelper.cs:114 ASP.notifications_aspx.Page_Load(Object sender, EventArgs e) in d:\Sites\tech2\Notifications.aspx:16 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +50 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627 </pre></code> </td> </tr> </table> <br> <hr width=100% size=1 color=silver> <b>Version Information:</b> Microsoft .NET Framework Version:2.0.50727.3623; ASP.NET Version:2.0.50727.5053 </font> </body> </html> <!-- [XmlException]: Data at the root level is invalid. Line 1, position 1. at System.Xml.XmlTextReaderImpl.Throw(Exception e) at System.Xml.XmlTextReaderImpl.Throw(String res, String arg) at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace() at System.Xml.XmlTextReaderImpl.ParseDocumentContent() at System.Xml.XmlTextReaderImpl.Read() at System.Xml.XmlTextReader.Read() at GCheckout.Util.EncodeHelper.GetTopElement(Stream Xml) in C:\Work\googlecode\gcheckout\lib\Util\EncodeHelper.cs:line 148 at GCheckout.Util.EncodeHelper.GetTopElement(Byte[] Xml) in C:\Work\googlecode\gcheckout\lib\Util\EncodeHelper.cs:line 88 at GCheckout.Util.EncodeHelper.GetTopElement(String Xml) in C:\Work\googlecode\gcheckout\lib\Util\EncodeHelper.cs:line 114 at ASP.notifications_aspx.Page_Load(Object sender, EventArgs e) in d:\Sites\tech2\Notifications.aspx:line 16 at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) [HttpUnhandledException]: Exception of type 'System.Web.HttpUnhandledException' was thrown. at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.notifications_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\d4056d14\8cf5e5c6\App_Web_sascrtij.0.cs:line 0 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --><!-- This error page might contain sensitive information because ASP.NET is configured to show verbose error messages using <customErrors mode="Off"/>. Consider using <customErrors mode="On"/> or <customErrors mode="RemoteOnly"/> in production environments.-->
答案 0 :(得分：0)
Integration Console中的错误提示您的服务器未正确确认通知：
有些事情要尝试：
确认您正确解析通知并正确发回确认。
验证XML响应是否已正确格式化。与HTML不同，XML解析器在空格方面很挑剔，一般都是低级大写，一般是正确的语法。