Azure ServiceBus在Client.Receive（）

上返回空值我有一个接收来自我在azure中设置的队列的消息的问题。我已经成功地使用了相同的代码，但现在我只是在尝试获取消息时得到空值。当我在azure管理控制台中查看队列时，我清楚地看到队列中包含5条消息。Azure ServiceBus在Client.Receive（）

下面是代码：

ServiceBus SB = new ServiceBus(); 
Microsoft.ServiceBus.Messaging.BrokeredMessage message; 
while (true) 
{ 
    message = SB.ReceiveMessage("orders"); 
    if (message == null) 
    { 
     break; 
    } 
    Procurement.Order order = message.GetBody<Procurement.Order>(); 
    order.id = Guid.NewGuid().ToString(); 
    order.remindercount = 0; 

    using (DbManager db = new DbManager()) 
    { 
     if (db.SetSpCommand("CreateOrderHead", 
      db.Parameter("@companyId", order.companyId), 
      db.Parameter("@orderId", order.orderId), 
      db.Parameter("@suppliercode", order.suppliercode), 
      db.Parameter("@supplierorderId", order.supplierorderId), 
      db.Parameter("@orderdate", order.orderdate), 
      db.Parameter("@desireddate", order.desireddate), 
      db.Parameter("@ordertext", order.ordertext), 
      db.Parameter("@name", order.name), 
      db.Parameter("@street", order.street), 
      db.Parameter("@zip", order.zip), 
      db.Parameter("@city", order.city), 
      db.Parameter("@country", order.country), 
      db.Parameter("@countrycode", order.countrycode), 
      db.Parameter("@deliveryterms", order.deliveryterms), 
      db.Parameter("@reference", order.reference), 
      db.Parameter("@deliveryinstruction", order.deliveryinstruction), 
      db.Parameter("@id", order.id), 
      db.Parameter("@partycode", order.partyCode) 
      ).ExecuteNonQuery() == 1) 
     { 
      message.Complete(); 
      message = null; 
     } 

     db.SetSpCommand("DeleteOrderRows", 
      db.Parameter("@orderid", order.orderId), 
      db.Parameter("@companyId", order.companyId) 
      ).ExecuteNonQuery(); 

     foreach (Procurement.Orderrow r in order.Orderrows) 
     { 
      db.SetSpCommand("CreateOrderRow", 
      db.Parameter("@companyId", r.companyId), 
      db.Parameter("@orderId", r.orderId), 
      db.Parameter("@orderrowId", r.orderrowId), 
      db.Parameter("@itemId", r.itemId), 
      db.Parameter("@itemdesc", r.itemdesc), 
      db.Parameter("@orderqty", r.orderqty), 
      db.Parameter("@desireddate", r.desireddate), 
      db.Parameter("@rowtext", r.rowtext), 
      db.Parameter("@supplieritemId", r.supplieritemId), 
      db.Parameter("@unit", r.unit), 
      db.Parameter("@id", order.id), 
      db.Parameter("@unitprice", r.unitprice), 
      db.Parameter("@rowprice", r.rowprice) 
      ).ExecuteNonQuery(); 
     } 
    } 
} 
Thread.Sleep(new TimeSpan(0, 1, 0));

这是ServiceBus级：

public class ServiceBus 
{ 
    TokenProvider TokenProvider; 
    MessagingFactory Factory; 

    public ServiceBus() 
    { 
     TokenProvider = TokenProvider.CreateSharedSecretTokenProvider(GetIssuerName(), GetSecret()); 
     Factory = MessagingFactory.Create(
      GetURINameSpace(), 
      TokenProvider 
      ); 
    } 

    public void SendMessage(string queue, BrokeredMessage message) 
    { 
     var client = Factory.CreateQueueClient(queue); 
     client.Send(message); 
    } 

    public BrokeredMessage ReceiveMessage(string queue) 
    { 
     var client = Factory.CreateQueueClient(queue, ReceiveMode.ReceiveAndDelete); 
     BrokeredMessage message = client.Receive(); 
     return message; 
    } 

    private static Uri GetURINameSpace() 
    { 
     return ServiceBusEnvironment.CreateServiceUri("sb", GetNamespace(), string.Empty); 
    } 

    private static string GetNamespace() 
    { 
     return "Namespace i have verified its the right one"; 
    } 

    private static string GetIssuerName() 
    { 
     return "Issuer i have verified its the right one"; 
    } 

    private static string GetSecret() 
    { 
     return "Key i have verified its the right one"; 
    } 
}

我想这应该是非常简单的，但我不能找到什么即时通讯做错了。它可能是小事，即时消失...

反正，在此先感谢！

来源

2011-12-29 DOOMDUDEMX

自己解决了！天青管理门户网站显示队列中的消息数量错误或消息仍然在队列中，但标记为“完成”或其他消息。 – DOOMDUDEMX 2011-12-29 20:31:41

这个问题的解决方案是在azure management-portal中的一个错误，它使得它在队列中显示错误的消息数量，或者消息以某种方式被标记以便它们不被读取。换句话说，它一直工作，我只需要添加一些新的消息队列。

来源

2011-12-29 20:35:35 DOOMDUDEMX

您在SubcriptionDescription.MessageCount中看到的那些BrokeredMessage不仅仅是常规消息，还包括$ DeadLetterQueue-sub队列中消息的数量！

使用此代码片段检索该子队列中的所有消息并打印出其详细信息。将[主题]和[订阅]重命名为您的实际版本：

MessagingFactory msgFactory = MessagingFactory.Create(_uri, _tokenProvider); 
     MessageReceiver msgReceiver = msgFactory.CreateMessageReceiver("[topic]/subscriptions/[subscription]/$DeadLetterQueue", ReceiveMode.PeekLock); 

     while (true) 
     { 
      BrokeredMessage msg = msgReceiver.Receive(); 

      if (msg != null) 
      { 
       Console.WriteLine("Deadlettered message."); 

       Console.WriteLine("MessageId:     {0}", msg.MessageId); 
       Console.WriteLine("DeliveryCount:    {0}", msg.DeliveryCount); 
       Console.WriteLine("EnqueuedTimeUtc:   {0}", msg.EnqueuedTimeUtc); 
       Console.WriteLine("Size:      {0} bytes", msg.Size); 
       Console.WriteLine("DeadLetterReason:   {0}", 
        msg.Properties["DeadLetterReason"]); 
       Console.WriteLine("DeadLetterErrorDescription: {0}", 
        msg.Properties["DeadLetterErrorDescription"]); 
       Console.WriteLine(); 
       msg.Complete(); 
      } 
     }

来源

2012-01-25 17:22:34 lamar

Azure ServiceBus在Client.Receive（）

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