Re: war plugin ???

Thu, 02 Sep 2004 06:42:13 -0700 

Hi Felipe,

If you want to do this you can create another maven project and have your war project include that as a dependency. The multiproject plugin ties all this together nicely.

There's really good wiki entry and a sample project/sub-projects zip file at http://wiki.codehaus.org/maven/CreatingJ2eeApplications (also see the wiki entry CreatingWebApplications)

This fits with the one-artifact-one-project guideline. Each project (or sub-project) should only create one jar/ear/war file.

So say you have a main project with an id of "myapp-webapp". You could then create a second project "myapp-common". In myapp-webapp you would then include a dependency for myapp-common with the war.bundle property set to true. The just move all your java code into myapp-common/src/java.

Here's a possible directory structure:

mainproject
 - root
   - project.xml
   - project.properties
 - webapp
   - project.xml
   - project.properties
   - src
     - webapp
       - *.jsp
       - *.html
 - common
   - project.xml
   - project.properties
   - src
     - java
       - com/yourcompany/project/*.java

To use multiproject you need to setup a couple things, then you just run "maven multiproject:install" and it will figure out the build order and everything :-)

In the webapp subproject's project.properties put the line:
   maven.multiproject.type=war

Then in webapp subproject's project.xml just include the dependency
       <dependency>
           <groupId>mygroupid</groupId>
           <artifactId>myapp-common</artifactId>
           <version>1.0</version>
           <properties>
             <war.bundle>true</war.bundle>
           </properties>
       </dependency>

Root is pretty much a skeleton.  Here's a simple project.xml:

<?xml version="1.0"?>
<project>
 <pomVersion>3</pomVersion>
 <id>myapp-root</id>
 <groupId>mygroupid</groupId>
 <name>MyApp Root Application</name>
 <currentVersion>1.0</currentVersion>
 <package>com.mycompany.myapp</package>
</project>

And in the root project's project.properties:

maven.multiproject.basedir=${basedir}/../
maven.multiproject.includes=*/project.xml
maven.multiproject.excludes=root/project.xml

Ah, this should be all set. Just cd to the root subproject directory (perhaps ~/cvs/myproject/root) and "maven multiproject:install". You can then find the war file in ~/.maven/repository/mygroupid/wars/myapp-webapp-1.0.war.

We have had very good luck with this process. My group uses maven to build some internal web applications. This has really cleaned up our build process.

Matt


Felipe Leme wrote:

Hi Eric,

On Thu, 2 Sep 2004 20:57:02 +0800, Eric Chow <[EMAIL PROTECTED]> wrote:



Is it possible to create a JAR file for those classes and copy it into
/WEB-INF/lib rather than those classes into /WEB-INF/classes ????



Currently, no. But I've opened an issue about it a couple of weeks ago:

http://jira.codehaus.org/browse/MPWAR-30

If you're interested in that change, please vote for it and put some comments, so we 
can discuss it in the dev list.

-- Felipe

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