如何在工作组安装上以编程方式清除MSMQ系统队列日志？

Question

我试试这个:MessageQueue mq = new MessageQueue(".\ Journal $"); mq.Purge();

它在XP上运行良好.但是,在Windows 2003服务器上,我总是有这样的错误:"工作组安装计算机不支持该操作."

Answer 1

系统队列的正确格式:

FormatName:Direct=os:.\\System$;JOURNAL

我在Windows 7和Windows 2003上测试过这种格式.

(os之后的点:表示本地主机/本地计算机)

var systemJournalQueue = new MessageQueue("FormatName:Direct=os:.\\System$;JOURNAL");
var systemDeadLetterQueue = new MessageQueue("FormatName:Direct=os:.\\System$;DEADLETTER");
var systemDeadXLetterQueue =new MessageQueue("FormatName:Direct=os:.\\System$;DEADXACT"));

systemJournalQueue.Purge();

或者如果你想保留N天的消息,你可以这样做:

private static void PurgeQueues(int archiveAfterHowManyDays, MessageQueue queue)
{
    queue.Formatter = new XmlMessageFormatter(new Type[] { typeof(System.String) });
    queue.MessageReadPropertyFilter.ArrivedTime = true;

    using (MessageEnumerator messageReader = queue.GetMessageEnumerator2())
    {
        while (messageReader.MoveNext())
        {
            Message m = messageReader.Current;
            if (m.ArrivedTime.AddDays(archiveAfterHowManyDays) < DateTime.Now)
            {
                queue.ReceiveById(m.Id);
            }
        }
    }
}