spring boot 优雅下线

@Endpoint(        id = "shutdownRegister")@Configuration@Slf4jpublic class ShutdownRegisterEndpoint implements ApplicationContextAware {    private static final Map<String, String> NO_CONTEXT_MESSAGE = Collections.singletonMap("message", "No context to shutdownRegister.");    private static final Map<String, String> SHUTDOWN_MESSAGE = Collections.singletonMap("message", "Register Shutting down, bye...");    @Autowired(required = false)    NacosServiceRegistry nacosServiceRegistry;    @Autowired(required = false)    NacosRegistration registration;    private ConfigurableApplicationContext context;    @Autowired(required = false)    private ApplicationContext applicationContext;
    public ShutdownRegisterEndpoint() {        log.info("[组件init]注销服务组件");    }
    @WriteOperation    public Map<String, String> shutdownRegister() {        if (this.context == null) {            return NO_CONTEXT_MESSAGE;        }        if (nacosServiceRegistry != null && registration != null) {            log.info("注销nacos");            nacosServiceRegistry.deregister(registration);        }        if (applicationContext != null) {            applicationContext.publishEvent(new EleServerDownEvent(new Object()));        }        return SHUTDOWN_MESSAGE;    }
    public void setApplicationContext(ApplicationContext context) throws BeansException {        if (context instanceof ConfigurableApplicationContext) {            this.context = (ConfigurableApplicationContext) context;        }
    }}
public class EleServerDownEvent extends ApplicationEvent {
    private static final long serialVersionUID = 1305017141473336210L;
    public EleServerDownEvent(Object source) {        super(source);    }}
然后脚本启动命令如下：curl --connect-timeout 5 -X POST http://$host_ip:18000/actuator/shutdownRegistersleep 10curl --connect-timeout 5 -X POST http://$host_ip:18000/actuator/shutdownsleep 30