如何查看和删除azureservicebus中死信中的消息

Question

我已经创建了一个天蓝色服务总线主题应用程序，它可以查看死信中的所有消息。我查看过的一些特定消息(带有特定消息)需要从死信队列中删除。请提供执行这方面的帮助。

Answer 1

通过调用对从死信队列接收到的代理消息的引用，可以将其从死信队列中删除。

https://msdn.microsoft.com/library/azure/microsoft.servicebus.messaging.brokeredmessage.complete.aspx

Answer 2

首先，如果您需要知道如何创建服务总线主题和订阅：

• 如何使用服务总线主题和订阅

要从订阅中接收消息，需要创建消息接收方：

//Create the messaging factory
var messagingFactory = MessagingFactory.CreateFromConnectionString("ServiceBusConnectionString");

// Get the dead letter path
var deadLetterPath = SubscriptionClient.FormatDeadLetterPath("TopicPath", "subscriptionName");

// Get the message receiver for the deal letter queue.
var messageReceiver = messagingFactory.CreateMessageReceiver(deadLetterPath);

然后你就可以监听到达的信息：

// This is the list of ids that need to be delete
var messageIdsToDelete = new List<long>(...);
messageReceiver.OnMessage((message) =>
{
    // Check if we have to delete the message
    if (messageIdsToDelete.Contains(message.SequenceNumber))
    {
        // Complete and delete the message from the queue.
        message.Complete();
    }

}, new OnMessageOptions());

Answer 3

此代码可帮助您删除Azure服务总线中的死信消息。

MessageReceiver fromQueueClient = null;

        MessagingFactory factory = MessagingFactory.CreateFromConnectionString(connectionString);
        fromQueueClient = await factory.CreateMessageReceiverAsync(_entityName, ReceiveMode.PeekLock);

            BrokeredMessage _message = await fromQueueClient.ReceiveAsync(SequenceNumber);

                await _message.CompleteAsync();