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    copied!<blockquote> <p>Is there a standard way to define a JDBC datasource and deploy it?</p> </blockquote> <p>Yes, there is. It's done via the <code>&lt;data-source&gt;</code> element, which you can put in <code>web.xml</code>, <code>ejb-jar.xml</code> and <code>application.xml</code>. If you don't like XML, you can also use an annotation for this instead: <a href="http://docs.oracle.com/javaee/6/api/javax/annotation/sql/DataSourceDefinition.html" rel="noreferrer">@DataSourceDefinition</a></p> <p>Example of a web.xml entry</p> <pre><code>&lt;data-source&gt; &lt;name&gt;java:app/myDS&lt;/name&gt; &lt;class-name&gt;org.postgresql.xa.PGXADataSource&lt;/class-name&gt; &lt;server-name&gt;pg.myserver.com&lt;/server-name&gt; &lt;database-name&gt;my_db&lt;/database-name&gt; &lt;user&gt;foo&lt;/user&gt; &lt;password&gt;bla&lt;/password&gt; &lt;transactional&gt;true&lt;/transactional&gt; &lt;isolation-level&gt;TRANSACTION_READ_COMMITTED&lt;/isolation-level&gt; &lt;initial-pool-size&gt;2&lt;/initial-pool-size&gt; &lt;max-pool-size&gt;10&lt;/max-pool-size&gt; &lt;min-pool-size&gt;5&lt;/min-pool-size&gt; &lt;max-statements&gt;0&lt;/max-statements&gt; &lt;/data-source&gt; </code></pre> <p>Further reading:</p> <ul> <li><a href="https://weblogs.java.net/blog/lancea/archive/2009/12/10/introducing-datasourcedefinition-annotation" rel="noreferrer">Introducing the DataSourceDefinition Annotation</a></li> <li><a href="http://henk53.wordpress.com/2012/06/30/the-state-of-datasourcedefinition-in-java-ee" rel="noreferrer">The state of @DataSourceDefinition in Java EE</a></li> <li><a href="http://jdevelopment.nl/open-source/java-ee-kickoff-app" rel="noreferrer">Example application use standard data source</a></li> </ul> <p><em>p.s. I'm surprised all other answers say this doesn't exist, while it clearly does, even at the time this question was originally asked.</em></p>
 

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