How to build an EAR project with EJB and WAR using Maven?

Question

I tried to create EAR Project with EJB and WAR but I have some problem. I created the main project from the Java EE 6 EAR Archetype:

Answer 1

I highly suggest that you understand how multi-module builds work. The Sonatype book has a great chapter describing in great detail.

To build an EAR with an EJB and a WAR, you actually need three modules, for the EJB, WAR and EAR. The parent POM just holds everything together and has a packaging type of POM.

So the parent pom.xml should look like this:

    4.0.0

    org.sonatype.mavenbook.multi
    simple-parent
    pom
    1.0
    Multi Chapter Simple Parent Project

    
        ejb-module
        war-module
        ear-module
    

Then, each of the child POMs would look like this:

ejb-module/pom.xml:

    4.0.0
    
        org.sonatype.mavenbook.multi
        simple-parent
      1.0
    
    ejb-module
    ejb

war-module/pom.xml

    4.0.0
    
        org.sonatype.mavenbook.multi
        simple-parent
        1.0
    

    war-module
    war
    simple-webapp Maven Webapp
    
        
            org.sonatype.mavenbook.multi
            ejb-module
            1.0
        
    

ear-module/pom.xml:

    4.0.0
    
        org.sonatype.mavenbook.multi
        simple-parent
        1.0
    

    ear-module
    ear
    EAR module
    
        
            
                org.apache.maven.plugins
                maven-ear-plugin
                2.10.1
                
                    
                        org.sonatype.mavenbook.multi
                        ejb-module
                        ejb-module.jar
                    
                    
                        org.sonatype.mavenbook.multi
                        war-module
                        /foo