9)What is used for @Component & @Bean annotation in Spring Boot?
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YouTube Shorts Video: Understanding @Component & @Bean Annotations in Spring Boot
In this short video, we explore the roles of the `@Component` and `@Bean` annotations in Spring Boot:
1. @Component Annotation:
Usage: Applied at the class level, indicating to the Spring container that the class should be treated as a Spring bean.
Example:
```java
@Component
public class DateUtils {
// Class definition
}
```
Purpose: Typically used for utility classes or components that don't fall into specific categories.
2. @Bean Annotation:
Usage: Applied at the method level, typically used in conjunction with the `@Configuration` annotation.
Example:
```java
@Configuration
public class SecurityConfig {
@Bean
public SecurityFilterChain securityFilterChain(HttpSecurity http) {
// Method logic to create and configure the SecurityFilterChain
}
}
```
Purpose: Used to explicitly declare a bean and provide configuration for that bean. Often employed in scenarios like security configuration.
Tags: #SpringBoot #JavaAnnotations #Programming #DevByteSchool
In summary, `@Component` is employed for class-level bean declaration, while `@Bean` is used at the method level within configuration classes. Each serves a distinct purpose in the Spring Boot framework.
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