Spring Event
2023-08-18 12:59:45 2 举报spring
作者其他创作
大纲/内容
EventObject（JDK的类）
# source：Object（ transient ）
+ EventObject(Object source)+ getSource()：Object
ApplicationEvent
+ ApplicationEvent(Object source)
ContextRefreshedEvent
+ ContextRefreshedEvent(Object source)
ApplicationEventMulticaster
+ addApplicationListener(ApplicationListener<?> listener)+ removeApplicationListener(ApplicationListener<?> listener)+ multicastEvent(ApplicationEvent event)
ApplicationEventPublisher
+ publishEvent(ApplicationEvent event)
事件定义者，规范事件接口，定义事件类型，默认定义了 ContextClosedEvent（上下文关闭事件，用于程序结束时的回调通知），ContextRefreshedEvent（上下文刷新事件，用于Spring对所有Bean生成完毕后进行事件通知）
ApplicationContextEvent
+ ApplicationContextEvent(Object source)+ getApplicationContext()：ApplicationContext
ApplicationListener
+ onApplicationEvent(E event)
AbstractApplicationContext
+ APPLICATION_EVENT_MULTICASTER_BEAN_NAME：String- applicationEventMulticaster：ApplicationEventMulticaster
- initApplicationEventMulticaster()- finishRefresh()+ publishEvent(ApplicationEvent event)+ close()
ContextClosedEvent
+ ContextClosedEvent(Object source)
依赖
EventListener（JDK的类）
AbstractApplicationEventMulticaster
+ applicationListeners：Set<ApplicationListener<ApplicationEvent>>
事件监听者，所有监听器要实现ApplicationListener接口
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