1. Introduction: In Spring Boot, @Qualifier and @Bean annotations work together to resolve ambiguity when multiple beans of the same type exist in the Spring container. @Qualifier is used to specify the exact bean to be injected, and @Bean is used to define custom beans. 2. @Qualifier Annotation: @Qualifier is used to specify the…
The @PostConstruct and @PreDestroy annotations in Spring Boot are used to indicate methods that need to be executed after bean initialization and before bean destruction, respectively. These annotations are commonly used for initializing and cleaning up resources associated with a Spring bean. 1. Introduction: In Spring Boot, the @PostConstruct annotation is used to annotate…
The @Order annotation in Spring Boot allows you to control the order in which components are loaded or executed within the application context. It is commonly used when you have multiple components of the same type and you want to specify the order in which they should be processed. Below is a tutorial that…
1. Introduction: In Spring Boot, @Scope and @Bean annotations are used to control the lifecycle and scope of a bean in the Spring IoC (Inversion of Control) container. 2. @Bean Annotation: The @Bean annotation is used to declare a method as a producer of a bean. This method is responsible for creating and configuring…
The @Target annotation in Java is a meta-annotation that is used to specify the types of elements to which an annotation can be applied. It is part of the Java Annotation API and allows you to restrict the usage of your custom annotations to specific program elements like classes, methods, fields, etc. In this…
The @Import annotation is used to import one or more configuration classes into the current configuration class or configuration file. This annotation is particularly useful when you want to modularize your configuration and reuse existing configuration classes in different parts of your Spring Boot application. Let's create a simple example to demonstrate the usage…
In Spring Boot, the @Value annotation provides a simple way to inject values from application properties directly into your beans. This tutorial will guide you through using @Value with examples to access and use configuration properties in a Spring Boot application. Prerequisites Ensure you have the following set up: A Spring Boot project (you…
In Spring Boot, @ConfigurationProperties is a convenient way to bind properties defined in your application configuration files (such as application.properties or application.yml) to Java objects. This tutorial will guide you through using @ConfigurationProperties with examples to externalize and manage configuration properties in a Spring Boot application. Prerequisites Ensure you have the following set up:…
1. Introduction: @Configuration and @Bean annotations in Spring Boot provide a way to configure the Spring IoC (Inversion of Control) container. They allow you to define beans explicitly in a Java-based configuration class. 2. Create a Simple Spring Boot Project: Start by creating a new Spring Boot project using your preferred IDE or Spring…
Introduction Logging is a crucial aspect of application development for debugging, monitoring, and troubleshooting. In the Spring Boot ecosystem, logging is commonly handled using SLF4J (Simple Logging Facade for Java) along with an underlying logging implementation, such as Logback. This tutorial will guide you through the process of setting up SLF4J with Logback in…