How to gracefully shutdown a Spring Boot application?

Question

Is there any difference between springapplication.registerShutdownhook() () and Springapplication.exit(applicationcontext) ? Will either of them also shut down the JVM gracefully?

Answer 1

If you have a ConfigurableApplicationContext , you can use the method registerShutdownHook() to register a shutdown hook with the JVM runtime. You can see more here. http://docs.oracle.com/javase/8/docs/api/java/lang/Runtime.html?is-external=true#addShutdownHook-java.lang.Thread-

You use Springapplication.exit(applicationcontext) to close the application context an finish the Spring application.