2005/06/06/using-activemq-with-the-spring-jmstemplate.xml

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<p>Spring supports a useful JMS abstraction called JmsTemplate which makes sending and consuming messages a little simpler than using the JMS APIs directly. The only downside of this abstraction is that each send() will create a connection, session, producer, send the message, then close them all down. This is a really inefficient operation with most JMS providers as each create of a connection, session, producer ends up being an RPC with the broker, if nothing else, for security reasons.</p>

<p>In 3.1-M2 or later of ActiveMQ there's a <link><page ri:content-title="Spring Support"></page><link-body>simple solution</link-body></link> using the org.activemq.pool.PooledConnectionFactory which will perform  pooling of JMS resources (connection, session, producer) to make sending messages efficiently. The same thing is true if you wanna use a similar pattern to the JmsTemplate to send messages from inside EJBs.</p>

<p>Here's an example of it in use inside a Spring config file.</p>

<structured-macro ac:macro-id="7b9bb11a-30f0-4e85-aa75-6895f8975cf1" ac:name="code" ac:schema-version="1"><plain-text-body>
  &lt;!-- a pooling based JMS provider --&gt;
  &lt;bean id="jmsFactory" class="org.activemq.pool.PooledConnectionFactory"&gt;
    &lt;property name="connectionFactory"&gt;
      &lt;bean class="org.activemq.ActiveMQConnectionFactory"&gt;
        &lt;property name="brokerURL"&gt;
          &lt;value&gt;tcp://localhost:61616&lt;/value&gt;
        &lt;/property&gt;
      &lt;/bean&gt;
    &lt;/property&gt;
  &lt;/bean&gt;

  &lt;!-- Spring JMS Template --&gt;
  &lt;bean id="myJmsTemplate" class="org.springframework.jms.core.JmsTemplate"&gt;
    &lt;property name="connectionFactory"&gt;
      &lt;ref local="jmsFactory"/&gt;
    &lt;/property&gt;
  &lt;/bean&gt;
</plain-text-body></structured-macro></div>