Maven: include resource file based on profile

I'm converting an Ant webapp project over to Maven. I have most of it working, but I'm stuck trying to figure out how to copy some resource files from different sources based on the profile.

I have src/main/resources/persistence-{dev, prod}.xml. One of these needs to be included in the war file as WEB-INF/classes/META-INF/persistence.xml.

I would like the dev version to be copied when the dev profile is active, a开发者_如何学JAVAnd the prod version when prod is active.

Just use the maven resources plugin like so http://maven.apache.org/plugins/maven-resources-plugin/examples/include-exclude.html and have a property for the file name or extension set in a profile.

If you are not wedded to the paradigm of having 3 separate persistence.xml files and copying one or the other selectively, you can use maven profiles with filtering like this (just implemented this the other day and today came across your post):

In persistence.xml:

<property name="hibernate.show_sql" value="${hibernate.debug}" />
<property name="hibernate.format_sql" value="${hibernate.debug}" />

In pom.xml create a profile and define the variable:

<profiles>
  <profile>
    <id>hib-debug</id>
    <properties>
      <hibernate.debug>true</hibernate.debug>
    </properties>
  </profile>
</profiles>

define a default for when you build without specifying a profile:

<properties>
  <hibernate.debug>false</hibernate.debug>
</properties>

and.... make sure you turn on resource filtering:

<resources>
  <resource>
    <directory>src/main/resources</directory>
    <filtering>true</filtering>
  </resource>
</resources>

Then you build with mvn -Phib-debug and voila! Substitution is done.