Activemq获取消费者数量(consumerCount)

import javax.jms.Connection;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.Session;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.advisory.AdvisorySupport;
import org.apache.activemq.command.ActiveMQTopic;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TestAdvisory {
	private static final Logger logger = LoggerFactory.getLogger(TestAdvisory.class);

	@Test
	public void test() {
		// 创建连接本地activemq的ActiveMQConnectionFactory实例
		ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory();
		Connection connection = null;
		try {
			connection = connectionFactory.createConnection();
			connection.start();
			Session session = connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE);
			// 创建 advisory topic : ActiveMQ.Advisory.Consumer.Topic.chat1,用于监控topic消费者的状态变化
			ActiveMQTopic advisoryTopic = AdvisorySupport.getConsumerAdvisoryTopic(new ActiveMQTopic("chat1"));
			MessageConsumer consumer = session.createConsumer(advisoryTopic);
			consumer.setMessageListener(new MessageListener() {
				@Override
				public void onMessage(Message message) {
					try {
						// 获取消费者数量属性
						int consumerCount = message.getIntProperty("consumerCount");
						logger.info("consumerCount = {} ",consumerCount);
					} catch (JMSException e) {
						e.printStackTrace();
					}
				}
			});
			Thread.sleep(20000);
		} catch (Exception e) {
			e.printStackTrace();
		}finally {
			try {
				if(null != connection){
					connection.close();
				}
			} catch (JMSException e) {
				e.printStackTrace();
			}
		}
	}

}