mvn archetype:generate -DarchetypeGroupId=com.vertispan.j2cl.archetypes \
-DarchetypeArtifactId=j2cl-archetype-servlet \
-DarchetypeVersion=0.22.0
Creates two Java modules, one for the server, and one for the client. The server module uses Jakarta servlets to host some http static content and offer some services, and the client module provides a simple J2cl-based browser application that is served from, and connects to that server for more content. The parent pom is configured to make it easy to add either shared or client-only modules to the project, and still get a good debugging experience from the browser.
After creating this, you'll need two consoles to start it. First, run mvn j2cl:watch in one
console - as soon as it has started to do any work in the j2cl-maven-plugin, it is safe to run
the next command. In the other console, run mvn jetty:run -pl *-server -am -Denv=dev. Once
Jetty has logged Started Jetty Server and J2cl has logged Build Complete: ready for browser refresh,
open http://localhost:8080/ in a browser to see the app. Refresh the page in the browser after
editing any source file (and seeing the "Build Complete" message in the j2cl:watch log).
The j2cl:watch goal must be started before jetty:run so that the j2cl output directory exists -
if that directory is changed in the root pom, this order may not strictly be necessary.
To deploy a sample to a servlet container, use mvn verify to build a war, then copy it from the
target/ directory to the webapps directory of the servlet container.