Jan 18, 2019 · Spring calls the methods annotated with @PostConstruct only once, just after the initialization of bean properties. Keep in mind that these methods will run even if there’s nothing to …

Introduced in Spring 2.5, the support for these annotations offers an alternative to the lifecycle callback mechanism described in initialization callbacks and destruction callbacks.

Sep 14, 2021 · Spring supports the PostConstruct lifecycle hook allowing to perform extra post-initialization actions once a bean has been initialized, i.e., it had all its dependencies injected.

Jul 23, 2025 · So generally, whenever we annotate a method in Spring Bean with @PostConstruct annotation, it gets executed after the spring bean is initialized. We can have only one method …

Aug 23, 2024 · In Spring Framework, @PreConstruct and @PostConstruct are annotations used for managing lifecycle events of beans, but they serve different purposes and are part of different …

Jan 28, 2026 · In this post I’ll walk you through @PostConstruct and @PreDestroy in a practical way, show how they behave in modern Spring (including Spring Boot 3 and Jakarta annotations), and give …

Oct 15, 2025 · Spring Boot 3 changed how beans start and stop — learn the modern lifecycle methods that replace @PostConstruct and @PreDestroy, with clear examples and real use cases.

Dec 18, 2025 · What is @PostConstruct and Why Replace It? @PostConstruct is a JSR-250 annotation that marks a method to run after a bean is constructed and all dependencies are injected. It is widely …

Dec 2, 2024 · The @PostConstruct method can be used to validate properties of bean or initializing any task just after dependency injection is completed. In a bean class, there must be only one method …

When Spring creates a bean, it follows a specific lifecycle sequence: The key advantage here is that @PostConstruct runs after all dependencies are injected, so you can safely use all your autowired …