如何清除用于服务总线主题订阅的消息 [英] How to purge messages for Service Bus Topic Subscription

问题描述

只是想知道从服务总线主题的订阅中清除消息的最佳方法(即使通过Portal，Powershell或C#).

Just wondering the best way (even if via Portal, Powershell, or C#) to purge the messages off of a Service Bus Topic's Subscription.

想象一下，我们有一个包含4个订阅的主题，而我们只想清除其中一个订阅中的消息.

Imagine we have a topic with 4 subscriptions, and we only want to purge the messages from one of the subscriptions.

我觉得唯一的方法可能是在while循环中阅读消息，但是希望有更好的东西.

I have a feeling the only way may be to read the messages in a while loop, but hoping for something better.

更新:

除了使用代码外，您还可以按照答案中的建议使用服务器资源管理器-右键单击订阅并清除消息:

Apart from using code, you can use the Server Explorer as suggested in the answer - right click subscription and purge messages:

推荐答案

您当然可以通过代码来完成.如果您使用的是 Service Bus SDK ，则可以执行以下操作:

You can most certainly do it via code. If you're using Service Bus SDK, you could do something like the following:

    static void PurgeMessagesFromSubscription()
    {
        var connectionString = "Endpoint=sb://account-name.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=access key";
        var topic = "topic-name";
        var subscription = "subscription-name";
        int batchSize = 100;
        var subscriptionClient = SubscriptionClient.CreateFromConnectionString(connectionString, topic, subscription, ReceiveMode.ReceiveAndDelete);
        do
        {
            var messages = subscriptionClient.ReceiveBatch(batchSize);
            if (messages.Count() == 0)
            {
                break;
            }
        }
        while (true);
    }

此代码将执行的操作是以Receive & Delete模式从订阅(一次100条)中获取消息，以便一旦获取消息，它们就会自动从订阅中删除.

What this code will do is fetch messages from the subscription (100 at a time) in Receive & Delete mode so that as soon as messages are fetched, they are deleted from the subscription automatically.

我相信 Service Bus Explorer 工具还具有清除消息的功能.您也可以使用它，而不用编写代码.

I believe Service Bus Explorer tool also has the capability to purge messages. You can use that as well instead of writing the code.

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