SpringBootContextLoaderListener Class — spring-boot Architecture

Source Code

core/spring-boot/src/main/java/org/springframework/boot/web/servlet/support/SpringBootServletInitializer.java lines 260–289

	private class SpringBootContextLoaderListener extends ContextLoaderListener {

		private final ServletContext servletContext;

		SpringBootContextLoaderListener(WebApplicationContext applicationContext, ServletContext servletContext) {
			super(applicationContext);
			this.servletContext = servletContext;
		}

		@Override
		public void contextInitialized(ServletContextEvent event) {
			// no-op because the application context is already initialized
		}

		@Override
		public void contextDestroyed(ServletContextEvent event) {
			try {
				super.contextDestroyed(event);
			}
			finally {
				// Use original context so that the classloader can be accessed
				deregisterJdbcDrivers(this.servletContext);
				// Shut down shared reactor schedulers tied to this classloader
				if (REACTOR_PRESENT) {
					shutDownSharedReactorSchedulers(this.servletContext);
				}
			}
		}

	}