我已按照documentation中所述在activemq.xml(ActiveMQ版本5.2.0)中配置队列。
<destinations>
<queue physicalName="FOO.BAR" />
<queue physicalName="DUMMY" />
</destinations>
我正尝试使用以下代码从java(在同一主机上)访问它:
Hashtable properties = new Hashtable();
properties.put(Context.INITIAL_CONTEXT_FACTORY,
"org.apache.activemq.jndi.ActiveMQInitialContextFactory");
properties.put(Context.PROVIDER_URL, "tcp://localhost:61616");
context = new InitialContext(properties);
factory = (ConnectionFactory) context.lookup("ConnectionFactory");
connection = factory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
queueName = "DUMMY"; // which can be either FOO.BAR or DUMMY
dest = (Destination) context.lookup(queueName);
我收到了以下错误,虽然队列在jconsole中可见(Tree / org.apache.activemq / Queue):
javax.naming.NameNotFoundException: DUMMY
请告诉我我做错了什么。很多,非常感谢!
答案 0 :(得分:8)
首先,你不必explicitly create any queues in the broker,但它没有任何伤害。
此外,代理中可用的目标不会使用某种JNDI名称自动神奇地映射到JNDI上下文。
您可以执行此操作explicitly as described here。如果您想要自动神奇的JNDI填充,那么使用 dynamicQueues / DUMMY 的JNDI命名约定作为您查找的JNDI名称(如Dynamically creating destinations中所述)
答案 1 :(得分:0)
队列队列;
// Connect to ActiveMQ
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(messageBrokerURL);
connection = factory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
// List to Dummy Queue
queue = session.createQueue("DUMMY");
messageConsumer = session.createConsumer(queue);
messageConsumer.setMessageListener(queueHandler);
// Start the connection
connection.start();
确保您的Handler实现了MessageListener。