如何使用Java Spring Boot应用程序制作持久性JMS消息？

Question

I am trying to make a queue with activemq and spring boot using this link and it looks fine. What I am unable to do is to make this queue persistent after application goes down. I think that SimpleJmsListenerContainerFactory should be durable to achieve that but when I set factory.setSubscriptionDurable(true) and factory.setClientId("someid") I am unable to receive messages any more. I would be greatfull for any suggestions.

Answer 1

I guess you are embedding the broker in your application. While this is ok for integration tests and proof of concepts, you should consider having a broker somewhere in your infrastructure and connect to it. If you choose that, refer to the ActiveMQ documentation and you should be fine.

If you insist on embedding it, you need to provide a brokerUrl that enables message persistence .

Having said that, it looks like you misunderstand durable subscriber and message persistence. The latter can be achieved by having a broker that actually stores the content of the queue somewhere so that if the broker is stopped and restarted, it can restore the content of its queue. The former is to be able to receive a message even if the listener is not active at a period of time.

Answer 2

you can enable persistence of messages using ActiveMQConnectionFactory.

as mentioned in the spring boot link you provided, this ActiveMQConnectionFactory gets created automatically by spring boot.so you can have this bean in your application configuration created manually and you can set various property as well.

    ActiveMQConnectionFactory cf = new   ActiveMQConnectionFactory("vm://localhost?broker.persistent=true");

Here is the link http://activemq.apache.org/how-do-i-embed-a-broker-inside-a-connection.html