Spring's life cycle

Spring's life cycle

• 1. Call the Bean's constructor (or factory method) to instantiate the Bean.
• 2. Assign values ​​to the member variables of the Bean.
• 3. If the Bean implements BeanNameAware, call the Bean's setBeanName method.
• 4. If the Bean implements BeanFactoryAware, call the Bean's setBeanFactory method.
• 5. If the Bean implements ApplicationContextAware, call the Bean's setApplicationContext method.
• 6. If a BeanPostProcessor is configured in the container, call the postProcessBeforeInitialization method of the BeanPostProcessor (if there are multiple BeanPostProcessors, call the postProcessBeforeInitialization method of each BeanPostProcessor).
• 6. If the Bean implements InitializingBean, call the Bean's afterPropertiesSet method.
• 7. If the Bean is configured with the init-method method, call the Bean method configured by the init-method.
• 8. If a BeanPostProcessor is configured in the container, call the postProcessAfterInitialization method of the BeanPostProcessor. (If there are multiple BeanPostProcessors, call the postProcessAfterInitialization method of each BeanPostProcessor).
• 9, Bean is in a ready-to-use state.
• 10. The Spring container is closed.
• 11. If the Bean implements DisposableBean, call the destroy method of the Bean.
• 12. If the Bean is configured with the destroy-method method, call the method of the Bean configured by the destroy-method.