Question

这是我在控制台应用中的工作代码：

作家（工作代码）：

static void Main(string[] args)

    {
        Console.WriteLine("Starting..");

        string connectionString = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.ConnectionString");

        QueueClient Client = QueueClient.CreateFromConnectionString(connectionString, "xxx");

        // Create message, passing a string message for the body.
        BrokeredMessage message = new BrokeredMessage("");

        // Set some addtional custom app-specific properties.
        message.Properties["UserCode"] = "HELLOOO22353";
        message.Properties["UserId"] = "4511";

        try
        {
            // Send message to the queue.
            Client.Send(message);

        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.ToString());
        }


        Console.WriteLine("Complete..");
        //Console.ReadKey();
    }

读者:(工作代码）

static void Main(string[] args)
    {
        Console.WriteLine("Starting");

        string connectionString = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.ConnectionString");

        QueueClient Client = QueueClient.CreateFromConnectionString(connectionString, "xxx");

        OnMessageOptions options = new OnMessageOptions();
        options.AutoComplete = false;
        options.AutoRenewTimeout = TimeSpan.FromMinutes(1);

        Client.OnMessage((message) =>
        {
            try
            {
                string sMessage = " UserCode: " + message.Properties["UserCode"];

                Console.WriteLine("Found new User - " + sMessage);


                // Remove message from queue.
                message.Complete();


            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
                // Indicates a problem, unlock message in queue.
                message.Abandon();
            }
        }, options);

        Console.ReadKey();
    }

现在，这是我在Azure功能中无法使用的代码：

public static void Run(BrokeredMessage myMessage, TraceWriter log)
{
    log.Info($"C# ServiceBus queue trigger function processed message: {myMessage}");

    log.Info("1111");
    log.Info(myMessage.MessageId);  // this works
    myMessage.Complete(); // fails: Microsoft.ServiceBus: Operation is not valid due to the current state of the object.

    log.Info(myMessage.Properties["UserCode"].ToString());  // fails: myMessage.Properties is empty for some reason

}

我无法理解为什么Reader控制台应用程序能够正确读取和完成消息，但Azure功能一（基本上基于相同的想法）不是。这两个代码都使用相同版本的Windows.ServiceBus包。

有人可以帮忙吗？

Answer 1

在Azure Functions中使用ServiceBus触发器时，您不需要自己完成消息。 The ServiceBus trigger automatically uses PeekLock mode and will handle automatically completing, abandoning and renewing the message lock for you。您还可以take control the finer details of this behavior via host.json settings获取您的功能。

Azure功能与服务总线：无法“完成”和访问代理消息的属性

1 个答案: