How to exclude jars from ear

问题

I am bundling EAR from a WAR file. The JARS are placed both in WARFile/WEB-INF/lib folder as well as EARFile/lib folder with duplication.

Do we need the JARS again in EARFile/lib folder inspite of having in WARFile/WEB-INF/lib?

If we do not need in EAR/lib filder, How can we remove them? The EAR file size became double due to duplication JARs presence in both WAR and EAR.

Please help me.

Thanks

回答1:

Good read here on "skinny" wars. Basically, you put the jars in the ear, but not the war files:

http://maven.apache.org/plugins/maven-war-plugin/examples/skinny-wars.html

回答2:

You have to define the dependency to your war project in the following way:

<dependency>
  <groupId>${project.groupId}</groupId>
  <artifactId>xyz-web</artifactId>
  <version>${project.version}</version>
  <type>war</type>
</dependency>

and furthermore you have to configure the ear plugin like the following:

  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-ear-plugin</artifactId>
    <configuration>
      <version>6</version>
      <modules>
        <!-- Register our War as a web module, and set the context root -->
        <webModule>
          <groupId>${project.groupId}</groupId>
          <artifactId>xyz-web</artifactId>
          <contextRoot>/xyz</contextRoot>
        </webModule>
      </modules>
    </configuration>
  </plugin>

来源：https://stackoverflow.com/questions/9500289/how-to-exclude-jars-from-ear