activeMQ性能优化--对象池管理connection

   activeMQ的某个应用场景，消费者和服务器只需建立一个长连接，而生产者的情况集中在服务器,需要对服务器端的生产者连接进行优化。

首先maven引入jar包依赖

     <dependency>            <groupId>org.activemq</groupId>            <artifactId>activemq-all</artifactId>            <version>5.9.0</version>        </dependency>        <dependency>            <groupId>org.apache.activemq</groupId>            <artifactId>activemq-pool</artifactId>            <version>5.9.0</version>            <exclusions>                <exclusion>                    <groupId>org.apache.geronimo.specs</groupId>                    <artifactId>geronimo-jms_1.1_spec</artifactId>                </exclusion>            </exclusions>        </dependency>

下面是实现代码

import org.apache.activemq.ActiveMQConnectionFactory;import org.apache.activemq.pool.PooledConnection;import org.apache.activemq.pool.PooledConnectionFactory;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import javax.jms.*;public class MQProductHelper {  public static final Logger LOG = LoggerFactory.getLogger(MQProductHelper.class);  private static PooledConnectionFactory poolFactory;  /**   * 获取单例的PooledConnectionFactory   *  @return   */  private static synchronized PooledConnectionFactory getPooledConnectionFactory() {    LOG.info("getPooledConnectionFactory");    if (poolFactory != null) return poolFactory;    LOG.info("getPooledConnectionFactory create new");    IConfigService configService = ServiceManager.getService(IConfigService.class);    String userName = configService.getConfig("MQ_USER_NAME", ShopConstant.BC_SHOP_ID);    String password = configService.getConfig("MQ_USER_PASS", ShopConstant.BC_SHOP_ID);    String url = configService.getConfig("MQ_BROKER_URL", ShopConstant.BC_SHOP_ID);    ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(userName, password, url);    poolFactory = new PooledConnectionFactory(factory);          // 池中借出的对象的最大数目    poolFactory.setMaxConnections(100);    poolFactory.setMaximumActiveSessionPerConnection(50);          //后台对象清理时，休眠时间超过了3000毫秒的对象为过期    poolFactory.setTimeBetweenExpirationCheckMillis(3000);    LOG.info("getPooledConnectionFactory create success");    return poolFactory;  }  /**   * 1.对象池管理connection和session,包括创建和关闭等   * 2.PooledConnectionFactory缺省设置MaxIdle为1，   *  官方解释Set max idle (not max active) since our connections always idle in the pool.   *   *  @return   * @throws JMSException   */  public static Session createSession() throws JMSException {    PooledConnectionFactory poolFactory = getPooledConnectionFactory();    PooledConnection pooledConnection = (PooledConnection) poolFactory.createConnection();    //false 参数表示 为非事务型消息，后面的参数表示消息的确认类型（见4.消息发出去后的确认模式）    return pooledConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);  }  public static void produce(String subject, String msg) {    LOG.info("producer send msg: {} ", msg);    if (StringUtil.isEmpty(msg)) {      LOG.warn("发送消息不能为空。");      return;    }    try {      Session session = createSession();      LOG.info("create session");      TextMessage textMessage = session.createTextMessage(msg);      Destination destination = session.createQueue(subject);      MessageProducer producer = session.createProducer(destination);      producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);      producer.send(textMessage);      LOG.info("create session success");    } catch (JMSException e) {      LOG.error(e.getMessage(), e);    }  }  public static void main(String[] args) {    MQProductHelper.produce("test.subject", "hello");  }}