Master Spring Boot Lifecycle: Init & Destroy Callbacks Explained

This article explains Spring Boot’s bean lifecycle callbacks, covering InitializingBean and DisposableBean interfaces, @PostConstruct and @PreDestroy annotations, initMethod and destroyMethod configurations, as well as alternative approaches like SmartInitializingSingleton, ContextRefreshedEvent, and AutoCloseable, with code examples and execution order details.

DisposableBeanInitializingBeanLifecycle

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Master Spring Boot Lifecycle: Init & Destroy Callbacks Explained

Spring Full-Stack Practical Cases

Jan 23, 2025 · Backend Development

Master Spring Boot Bean Destruction: From DisposableBean to AutoCloseable

This article explains Spring Boot 3 bean destruction techniques—including DisposableBean, @PreDestroy, @Bean destroyMethod, AutoCloseable, and custom inference—provides complete code examples, and announces a continuously updated Spring Boot 3 case collection PDF for developers.

DisposableBeanPreDestroySpring Boot

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Master Spring Boot Bean Destruction: From DisposableBean to AutoCloseable

Programmer DD

Sep 22, 2018 · Backend Development

Why kill -9 vs kill -15? Mastering Graceful Shutdown in Spring Boot

This article explains the difference between kill -9 and kill -15 signals, how Spring Boot processes the TERM signal, and provides practical code examples for implementing graceful shutdown, including shutdown hooks, DisposableBean, and proper thread‑pool termination strategies.

DisposableBeanGraceful ShutdownLinux signals

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Why kill -9 vs kill -15? Mastering Graceful Shutdown in Spring Boot