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Properties가 뭔가요? 🤔Properties는 애플리케이션의 설정 값들을 외부 파일로 분리하여 관리하는 방식입니다.예를 들어볼까요?개발 환경: db.url=localhost:3306운영 환경: db.url=prod.company.com:3306 이렇게 환경별로 다른 설정값들을 손쉽게 관리할 수 있답니다!Properties 설정 방법 💡1. application.properties 생성# src/main/resources/application.propertiesdb.url=localhost:3306db.username=devdb.password=12342. @PropertySource 설정@Configuration@PropertySource("classpath:/application.proper..

안녕하세요! 오늘은 Spring Bean의 초기화와 소멸 시점에 실행되는 콜백 메서드에 대해 알아보겠습니다.Bean 생명주기 콜백이 필요한 이유 🤔데이터베이스 연결, 캐시 초기화, 외부 리소스 로딩 등 Bean이 생성된 직후나 소멸되기 직전에 특별한 작업이 필요한 경우가 있습니다.예를 들어볼까요?애플리케이션 시작 시 필요한 설정 파일 로딩데이터베이스 커넥션 풀 초기화임시 파일 정리리소스 해제@PostConstruct 💫Bean이 생성되고 의존성 주입이 완료된 후 실행되는 메서드입니다.@Servicepublic class UserService { private Cache cache; @PostConstruct public void init() { System.out.prin..

안녕하세요! 오늘은 Spring에서 반복 작업을 자동화하는 Spring 스케줄링 대해 알아보겠습니다.Spring Task가 뭔가요? 🤔매일 아침 알람을 맞춰놓는 것처럼:특정 시간에 자동으로 실행되는 작업주기적으로 반복되는 작업비동기로 처리해야 하는 작업Spring Task는 이런 자동화된 작업을 쉽게 구현할 수 있게 해주는 프레임워크입니다!핵심 기능 💫1. @Scheduled 애노테이션@Componentpublic class ScheduledTasks { // 매일 자정에 실행 @Scheduled(cron = "0 0 0 * * ?") public void dailyTask() { System.out.println("매일 자정에 실행되는 작업"); } // 5초..

The Spring IoC (Inversion of Control) container is a powerful tool in the Spring Framework that handles the creation, configuration, and management of beans, thereby promoting loose coupling and flexibility in your applications.The Big PictureThink of the Spring IoC container as a factory with a highly intelligent management system. In this factory, various components (beans) are produced, assem..

Spring Beans are the backbone of a Spring application, representing objects that are created and managed by the Spring IoC container, ensuring efficient dependency management and configuration.The Big PictureImagine you have a smart home system where different devices (like lights, thermostats, and security cameras) are all controlled by a central hub. The central hub knows how to turn on the li..

Spring's IoC container manages the lifecycle of beans by creating, configuring, and assembling them during application startup, and by managing their states and dependencies through the entire runtime.The Big PictureThink of the IoC container as a sophisticated manager in a large corporation. This manager is responsible for hiring employees (creating beans), assigning them tasks (configuring bea..

Hibernate settings in a Spring Framework web application involve configuring database connection, dialect, and entity management settings to ensure efficient and optimized interaction with the database.The Big PictureHibernate is an ORM (Object-Relational Mapping) framework that maps Java objects to database tables. In a Spring Framework web application, Hibernate settings are crucial for config..

Spring Security is like a security guard for your web applications, ensuring that only authorized users can access certain parts and protecting against various threats.The Big PictureImagine your web application is like a museum. You want to allow visitors to explore certain sections freely, but some areas should be restricted to staff only. Additionally, you need to protect valuable exhibits fr..

To specify the base packages for component scanning in a Spring configuration class, you use the @ComponentScan annotation with the basePackages attribute to indicate which packages should be scanned for components.The Big PictureSpecifying base packages for component scanning in a Spring configuration class is akin to giving precise instructions to a search party on where to look for important ..

Component scanning in Spring is like a search party looking for specific items in a large house, ensuring that every important item is identified, registered, and ready for use when needed.The Big PictureImagine you have a large warehouse filled with various items. Some of these items are essential for your business operations, while others are not. To streamline your workflow, you need a system..