spring学习4-生命周期 init 和的destory顺序

Combining lifecycle mechanisms

As of Spring 2.5, you have three options for controlling bean lifecycle behavior: the InitializingBean and DisposableBean callback interfaces; custom init() anddestroy() methods; and the @PostConstruct and @PreDestroy annotations. You can combine these mechanisms to control a given bean.

If multiple lifecycle mechanisms are configured for a bean, and each mechanism is configured with a different method name, then each configured method is executed in the order listed below. However, if the same method name is configured - for example, init() for an initialization method - for more than one of these lifecycle mechanisms, that method is executed once, as explained in the preceding section.

Multiple lifecycle mechanisms configured for the same bean, with different initialization methods, are called as follows:

• Methods annotated with @PostConstruct
• afterPropertiesSet() as defined by the InitializingBean callback interface
• A custom configured init() method

Destroy methods are called in the same order:

• Methods annotated with @PreDestroy
• destroy() as defined by the DisposableBean callback interface
• A custom configured destroy() method