java - 什么是热刷新？

Question

这是 1.6.1 的 Spring Framework Core 的一个片段:生命周期回调:

Also, please note that stop notifications are not guaranteed to come before destruction. On regular shutdown, all Lifecycle beans first receive a stop notification before the general destruction callbacks are being propagated. However, on hot refresh during a context’s lifetime or on aborted refresh attempts, only destroy methods are called.

什么是热刷新？跟live reloading有关系吗？

Answer 1

我自己回答问题。

ContextRefreshedEvent is published when the ApplicationContext is initialized or refreshed (for example, by using the refresh() method on the ConfigurableApplicationContext interface). Here, “initialized” means that all beans are loaded, post-processor beans are detected and activated, singletons are pre-instantiated, and the ApplicationContext object is ready for use. As long as the context has not been closed, a refresh can be triggered multiple times, provided that the chosen ApplicationContext actually supports such “hot” refreshes. For example, XmlWebApplicationContext supports hot refreshes, but GenericApplicationContext does not.

AbstractRefreshableWebApplicationContext :

Provides a "configLocations" property, to be populated through the ConfigurableWebApplicationContext interface on web application startup.

它是在不重启应用程序的情况下替换其配置位置属性的 Web 应用程序上下文。