Where do I put startup code in Play Framework?

Question

I want to run some code on startup to pre-cache some stuff, and would also like to start a Timer to re-cache some things outside the critical path of a web request. Is this possible with Play Framework, and where so I put this code?

Answer 1

You need to create a bootstrap job which will be executed by Play at application start time.

@OnApplicationStart public class Bootstrap extends Job {      public void doJob() {        //do stuff     }     } 

Read more about how to do this in the Play Manual.

Answer 2

For playframework 2.6+, please refer to playframework doc: Eager bindings

For playframework 2.0 to 2.5, use GlobalSettings, as the following code:

import play.*;  public class Global extends GlobalSettings {    @Override   public void onStart(Application app) {     Logger.info("Application has started");   }      @Override   public void onStop(Application app) {     Logger.info("Application shutdown...");   }   } 

more information, go to playframework docs: JavaGlobal