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POUsing JMX / JMS to broadcast a message to all sessions of a web app?
 

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    <p>I have a Spring MVC web app running on my server. Recently I wanted to add a functionality to notify any logged in users that their role has changed, so they can logout and in again.</p> <p>I thought about using JMX, so did a small test and it worked fine, except that its not broadcasting the message. So for example, if i have 2 logged in persons, only 1 is receiving the message.</p> <p>So my question is, is it possible to broadcast a message with JMX to all instances of a web app (active sessions)?</p> <p>Edit - using JMS</p> <p>So I am trying with JMS right now, here is my configuration file:</p> <pre><code>&lt;beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd"&gt; &lt;bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory"&gt; &lt;property name="brokerURL" value="tcp://localhost:61616"/&gt; &lt;/bean&gt; &lt;bean id="msgDestination" class="org.apache.activemq.command.ActiveMQTopic"&gt; &lt;constructor-arg value="userToLogout.topic"/&gt; &lt;/bean&gt; &lt;bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate"&gt; &lt;property name="connectionFactory" ref="connectionFactory"/&gt; &lt;property name="pubSubDomain" value="true"/&gt; &lt;property name="receiveTimeout" value="10000"/&gt; &lt;/bean&gt; &lt;bean id="userNotifier" class="com.cap.messaging.UserNotifier"&gt; &lt;property name="destination" ref="msgDestination"/&gt; &lt;property name="jmsTemplate" ref="jmsTemplate"/&gt; &lt;/bean&gt; &lt;bean id="userNotificationListener" class="com.cap.messaging.UserNotificationListener"&gt; &lt;/bean&gt; &lt;bean class="org.springframework.jms.listener.DefaultMessageListenerContainer"&gt; &lt;property name="connectionFactory" ref="connectionFactory" /&gt; &lt;property name="destinationName" value="userToLogout.topic" /&gt; &lt;property name="messageListener" ref="userNotificationListener" /&gt; &lt;/bean&gt; </code></pre> <p></p> <p>This isnt working right now. However it works if I change the ActiveMQTopic to ActiveMQQueue. what am I missing here, and would this work?</p>
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    1. COIf someone is interested in the solution, I just added an Application scoped bean, and simulated a publish-subscribe communication. kinda did the trick.
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