Application.java

package controllers;

import play.*;
import play.mvc.*;
import views.html.*;

import services.*;

import javax.enterprise.context.*;

import javax.inject.*;

@ApplicationScoped
public class Application extends Controller {

    @Inject HelloService helloService;
  
    public Result index() {
    	return ok(index.render(helloService.hello()));
    }
}

Build.scala

import sbt._
import Keys._
import PlayProject._

object ApplicationBuild extends Build {

    val appName         = "play2-cdi"
    val appVersion      = "1.0-SNAPSHOT"

    val appDependencies = Seq(
      // Add your project dependencies here,
      "org.jboss.weld.se" % "weld-se" % "1.1.9.Final"
    )

    val main = PlayProject(appName, appVersion, appDependencies, mainLang = SCALA).settings(
      // Add your own project settings here      
    )

}

Global.java

import play.*;

import org.jboss.weld.environment.se.ShutdownManager;
import org.jboss.weld.environment.se.Weld;
import org.jboss.weld.environment.se.WeldContainer;

public class Global extends GlobalSettings {

    private WeldContainer weld;

    @Override
    public void onStart(Application app) {
        weld = new Weld().initialize();
    }

    @Override
    public void onStop(Application app) {
	shutdown(weld);
    }

    @Override
    public <A> A getControllerInstance(Class<A> clazz) {
        return weld.instance().select(clazz).get();
    }

    private void shutdown(WeldContainer weld) {
        ShutdownManager shutdownManager = weld.instance().select(ShutdownManager.class).get();
        shutdownManager.shutdown();
    }
}

HelloService.java

package services;

import javax.enterprise.context.*;

@ApplicationScoped
public class HelloService {

    public String hello() {
	return "Hello world!";
    }
}

routes

GET    /       @controllers.Application.index()

routes2

GET     /scala                      @controllers.ScalaController.index()

ScalaController.scala

package controllers

import play.api._
import play.api.mvc._

import javax.inject._
import javax.enterprise.context._

import services._

class ScalaController extends Controller {

  @Inject var helloService: HelloService = _

  def index() = Action { implicit request =>
    Ok(	views.html.index( helloService.hello( ) ) )	
  }
}