mirror of
https://github.com/apache/activemq-artemis.git
synced 2025-02-06 18:18:43 +00:00
8db56b73b8
Also gave them all a profile so they wouldn't actually run during the build. fixed some of the comilation errors in the Rest example module
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<html>
<head>
<title>ActiveMQ JMS Context Example</title>
<link rel="stylesheet" type="text/css" href="../common/common.css" />
<link rel="stylesheet" type="text/css" href="../common/prettify.css" />
<script type="text/javascript" src="../common/prettify.js"></script>
</head>
<body onload="prettyPrint()">
<h1>JMS Context Example</h1>
<p>This example shows you how to send and receive a message to a JMS Queue using ActiveMQ by using a JMS Context</p>
<p>A JMSContext is part of JMS 2.0 and combines the JMS Connection and Session Objects into a simple Interface</p>
<h2>Example step-by-step</h2>
<p><i>To run the example, simply type <code>mvn verify -Pexample</code> from this directory</i></p>
<ol>
<li>First we need to get an initial context so we can look-up the JMS connection factory and destination objects from JNDI. This initial context will get it's properties from the <code>client-jndi.properties</code> file in the directory <code>../common/config</code></li>
<pre class="prettyprint">
<code>InitialContext initialContext = getContext();</code>
</pre>
<li>We look-up the JMS queue object from JNDI</li>
<pre class="prettyprint">
<code>Queue queue = (Queue) initialContext.lookup("/queue/exampleQueue");</code>
</pre>
<li>We look-up the JMS connection factory object from JNDI</li>
<pre class="prettyprint">
<code>ConnectionFactory cf = (ConnectionFactory) initialContext.lookup("/ConnectionFactory");</code>
</pre>
<li>We create a JMS context</li>
<pre class="prettyprint">
<code>jmsContext = cf.createContext();</code>
</pre>
<li>We create a JMS Producer, set the delivery mode and send a message all in one line. Note that we don't pass
a message to the send method but just a String.</li>
<pre class="prettyprint">
<code>jmsContext.createProducer().setDeliveryMode(DeliveryMode.PERSISTENT).send(queue, "this is a string")</code>
</pre>
<li>We create a JMS message consumer and receive the payload of the message directly</li>
<pre class="prettyprint">
<code>String payLoad = jmsContext.createConsumer(queue).receiveBody(String.class);</code>
</pre>
<li>We create a JMS text message that we are going to send.</li>
<pre class="prettyprint">
<code>TextMessage message = session.createTextMessage("This is a text message");</code>
</pre>
<li>And finally, <b>always</b> remember to close your JMS connections and resources after use, in a <code>finally</code> block. Closing a JMS connection will automatically close all of its sessions, consumers, producer and browser objects</li>
<pre class="prettyprint">
<code>finally
{
if (initialContext != null)
{
initialContext.close();
}
if (jmsContext != null)
{
jmsContext.close();
}
}</code>
</pre>
</ol>
</body>
</html>