Run a method only at Spring Application Context startup?

Question

I need to run a method after the Spring Application Context of my web app has started up. I looked at this question but it refers to Java Servlet startup, and none of the Spring stuff has run at that point.

Is there a "SpringContext.onStartup()" method I can hook into?

Answer 1

Use something like the following code:

@Component
public class StartupListener implements ApplicationListener<ContextRefreshedEvent> {

  @Override
  public void onApplicationEvent(final ContextRefreshedEvent event) {
    // do your stuff here 
  }
}

Of course StartupListener will need to be within the component scan's reach

Take note however that if your application uses multiple contexts (for example a root context and a web context) this method will be run once for each context.