Can some code run when we first deploy a WAR file?

Question

Is there any method or API that I can use so that whenever I deploy a new WAR file, a part of code should execute or perhaps when Tomcat starts, the respective servlet should s

Answer 1

You can include a "ContextListener" in web.xml. An instance of this class would be created when Webb application WAR is about to be deployed/started.

This code can start a thread that would keep running till app is deployed.

Example : http://www.javafaq.nu/java-example-code-233.html