我正在尝试通读 ActiveMQ 消息并根据一些过滤器来处理其中一些消息或将其他消息留在队列中。我使用带有以下代码的 NMS API:
Uri connecturi = new Uri("activemq:tcp://model.net:61616");
IConnectionFactory factory = new NMSConnectionFactory(connecturi);
List<ModelBuilderBase> result = new List<ModelBuilderBase>();
using (IConnection connection = factory.CreateConnection())
using (ISession session = connection.CreateSession())
{
IDestination destination = SessionUtil.GetDestination(session, "queue://cidModelbuilderQ");
using (IMessageConsumer consumer = session.CreateConsumer(destination))
{
connection.Start();
ITextMessage message;
while ((message = consumer.ReceiveNoWait() as ITextMessage) != null)
{
if (message.Properties[MANDATOR] == null || message.Properties[REFCODE] == null)
continue;
var mandator = message.Properties[MANDATOR].ToString();
var refCode = message.Properties[REFCODE].ToString();
result.Add(ModelBuilderFactory.Instance.GetInstance(refCode, mandator));
}
}
问题是收到消息后,该消息被删除。我可以以某种方式更改此行为并仅在成功处理后手动删除消息吗?}