3
我目前正在從事一項與Exchange集成的項目。其中一個要求是監視新郵件的郵箱，我認爲利用流通知將是一個好主意。訂閱交換流式通知時出現異常
我寫了一個示例應用程序來熟悉如何利用流媒體的通知，但我遇到了以下錯誤：The expected XML node type was Element, but the actual type is Text.
下面是我寫的示例應用程序的源：
using Microsoft.Exchange.WebServices.Data;
using System;
using System.Net;
namespace ExampleProgram
{
class Program
{
public static StreamingSubscriptionConnection streamingConnection;
public static bool RedirectionUrlValidationCallback(string redirectionUrl)
{
bool result = false;
Uri redirectionUri = new Uri(redirectionUrl);
if (redirectionUri.Scheme == "https")
{
result = true;
}
return result;
}
public static void NewMailSubscriptionDisconnect(object sender, SubscriptionErrorEventArgs args)
{
Exception e = args.Exception;
Console.Write("Disconnect: ");
Console.WriteLine(e.Message);
if (streamingConnection != null && !streamingConnection.IsOpen)
{
streamingConnection.Open();
}
}
public static void NewMailSubscriptionError(object sender, SubscriptionErrorEventArgs args)
{
Exception e = args.Exception;
Console.Write("Disconnect: ");
Console.WriteLine(e.Message);
}
public static void NewMailSubscriptionNotification(object sender, NotificationEventArgs args)
{
Console.WriteLine("New message has arrived");
}
static void Main(string[] args)
{
var exchangeService = new ExchangeService(ExchangeVersion.Exchange2013_SP1);
exchangeService.Credentials = new NetworkCredential("username", "password", "domain");
exchangeService.TraceEnabled = true;
exchangeService.TraceFlags = TraceFlags.All;
exchangeService.TraceEnablePrettyPrinting = true;
exchangeService.AutodiscoverUrl("[email protected]", RedirectionUrlValidationCallback);
var newMailSubscription = exchangeService.SubscribeToStreamingNotificationsOnAllFolders(EventType.NewMail);
streamingConnection = new StreamingSubscriptionConnection(exchangeService, 30);
streamingConnection.AddSubscription(newMailSubscription);
streamingConnection.OnNotificationEvent += new StreamingSubscriptionConnection.NotificationEventDelegate(NewMailSubscriptionNotification);
streamingConnection.OnSubscriptionError += new StreamingSubscriptionConnection.SubscriptionErrorDelegate(NewMailSubscriptionError);
streamingConnection.OnDisconnect += new StreamingSubscriptionConnection.SubscriptionErrorDelegate(NewMailSubscriptionDisconnect);
streamingConnection.Open();
do { } while (Console.ReadKey(true).Key != ConsoleKey.Escape);
}
}
}
從上面的源代碼可以看出，我打開了跟蹤。以下就是從這些痕跡產生：
EwsResponseHttpHeader
<Trace Tag="EwsResponseHttpHeaders" Tid="17" Time="2015-10-20 17:42:31Z">
HTTP/1.1 200 OK
Transfer-Encoding: chunked
request-id: <redacted>
X-CalculatedBETarget: EXAMPLE-EXCHANGE-01.example.com
X-NoBuffering: 1
X-DiagInfo: EXAMPLE-EXCHANGE-01
X-BEServer: EXAMPLE-EXCHANGE-01
Cache-Control: private
Set-Cookie: exchangecookie=<redacted>; path=/,X-BackEndCookie=<redacted>; expires=Thu, 19-Nov-2015 17:42:30 GMT; path=/ews; secure; HttpOnly
Server: Microsoft-IIS/8.5
X-AspNet-Version: 4.0.30319
Persistent-Auth: true
X-Powered-By: ASP.NET
X-FEServer: EXAMPLE-EXCHANGE-02
Date: Tue, 20 Oct 2015 17:42:30 GMT
</Trace>
EwsResponse
<Trace Tag="EwsResponse"
Tid="15"
Time="2015-10-20 16:52:07Z"
Version="0.0.0.0">
417 <!-- What is this? -->
<Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/">
<soap11:Header xmlns:soap11="http://schemas.xmlsoap.org/soap/envelope/">
<ServerVersionInfo xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
MajorVersion="15"
MinorVersion="0"
MajorBuildNumber="1130"
MinorBuildNumber="6"
Version="V2_23"
xmlns="http://schemas.microsoft.com/exchange/services/2006/types" />
</soap11:Header>
<soap11:Body xmlns:soap11="http://schemas.xmlsoap.org/soap/envelope/">
<m:GetStreamingEventsResponse xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types"
xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages">
<m:ResponseMessages>
<m:GetStreamingEventsResponseMessage ResponseClass="Success">
<m:ResponseCode>NoError</m:ResponseCode>
<m:ConnectionStatus>OK</m:ConnectionStatus>
</m:GetStreamingEventsResponseMessage>
</m:ResponseMessages>
</m:GetStreamingEventsResponse>
</soap11:Body>
</Envelope>
2 <!-- Not sure what this is either... -->
</Trace>
異常詳細信息
Microsoft.Exchange.WebServices.Data.ServiceXmlDeserializationException occurred
HResult=-2146233088
Message=The expected XML node type was Element, but the actual type is Text.
Source=Microsoft.Exchange.WebServices
StackTrace:
at Microsoft.Exchange.WebServices.Data.EwsXmlReader.Read(XmlNodeType nodeType) in C:\Projects\ews-managed-api\Core\EwsXmlReader.cs:line 187
InnerException:
它看起來像「東西」在前面加上和附加從Exchange服務器的響應：
的EwsXmlReader.cs源可以在這裏找到。這很明顯爲什麼拋出異常，文本數據不應該存在。對我來說不明顯的是爲什麼那些文本數據在那裏。
任何想法？
什麼是異常的堆棧跟蹤？ –
數字417和2總是相同的？它可能是一種來自別的東西的「BOF」和「EOF」嗎？ –
@YacoubMassad我添加了異常細節並引用了異常的來源。 – Tombatron