function call after the deployement of the app

I wanna know if there is a function that is called directly after the deployment of the server. This functions co开发者_如何学运维uld be called as an initialisation function of the deployment. Thanks

If this is for a single app, you can implement a ServletContextListener, listening on the contextInitialized() event. You can register an implementation through the <listener> tag in your web.xml.