onApplicationEvent
onApplicationEvent is a method in the Spring Framework, specifically part of the ApplicationListener interface. It is used to handle application events, which are events that occur within the Spring application context. These events can be custom events created by the developer or built-in events provided by the Spring Framework, such as ContextRefreshedEvent or ContextClosedEvent.
The onApplicationEvent method is called when an event is published to the application context. It takes a
To use onApplicationEvent, a class must implement the ApplicationListener interface. The class must also specify the
public void onApplicationEvent(ApplicationEvent event) {
if (event instanceof ContextRefreshedEvent) {
}
}
It is important to note that the onApplicationEvent method is called synchronously, meaning that the event
Additionally, the onApplicationEvent method can be used to decouple components in a Spring application. By using