spring-listener

spring 事件/生命周期

可用类型

org.springframework.boot.SpringApplicationRunListener

处理程序启动相关生命周期

需要在spring.factories中定义。

Listener.java

org.springframework.context.ApplicationListener

处理程序运行相关生命周期

可以使用@Component配置。

泛型可限定接收事件类型

RunListener.java

org.springframework.context.SmartLifecycle

处理生命周期，用处不大

可以使用@Component配置

MyLifecycle.java

执行顺序

1. (系统)创建ConfigurableBootstrapContext
2. 创建SpringApplicationRunListener
3. SpringApplicationRunListener#starting
4. SpringApplicationRunListener#environmentPrepared
5. (系统)打印Banner
6. SpringApplicationRunListener#contextPrepared
7. (系统)关闭ConfigurableBootstrapContext
8. SpringApplicationRunListener#contextLoaded
9. BeanFactoryPostProcessor
10. (系统)初始化tomcat
11. 初始化其他组件(其他框架、用户组件)
12. 创建ApplicationListener
13. ApplicationListener接收事件ServletWebServerInitializedEvent
14. SmartLifecycle#start
15. ApplicationListener接收事件ContextRefreshedEvent
16. ApplicationListener接收事件ApplicationStartedEvent
17. ApplicationListener接收事件AvailabilityChangeEvent, state: CORRECT
18. SpringApplicationRunListener#started
19. 执行CommandLineRunner
20. ApplicationListener接收事件ApplicationReadyEvent
21. ApplicationListener接收事件AvailabilityChangeEvent, state: ACCEPTING_TRAFFIC
22. SpringApplicationRunListener#ready
23. (系统)SpringApplication#run方法结束
24. ============================== 程序运行 ==============================
25. (用户)发送http请求结束后: ApplicationListener接收事件ServletRequestHandledEvent
26. (用户)发布自定义事件时: ApplicationListener接收事件
27. ============================== 程序退出 ==============================
28. ApplicationListener接收事件AvailabilityChangeEvent, state: REFUSING_TRAFFIC
29. ApplicationListener接收事件ContextClosedEvent
30. SmartLifecycle#stop
31. 执行DisposableBean#destroy