每日一则JavaWeb---Spring的ApplicationEventPublisher的作用

public interface ApplicationEventPublisher {

/**
* Notify all listeners registered with this application of an application
* event. Events may be framework events (such as RequestHandledEvent)
* or application-specific events.
* @param event the event to publish
* @see org.springframework.web.context.support.RequestHandledEvent
*/
void publishEvent(ApplicationEvent event);

}