Common Spring IoC Annotations and Their Usage
@Component
The @Component annotation signals Spring's IoC container to automatically detect and register the class as a bean during component scanning.
@Component
public class UserRole {
@Value("1")
private Long userId;
@Value("user_role_admin")
private String roleName;
@Value("administrative role& ...
Posted on Tue, 29 Sep 2026 16:38:07 +0000 by wesmont
Core Annotations for Bean Management in Spring
Spring provides several annotations to declare components as managed beans with in the container.
@Controller: Designates a class as a Spring MVC controller, typically used in conjunction with @RequestMapping.
@Controller
@RequestMapping("user")
public class UserController {
@GetMapping("get/{id}")
public String get ...
Posted on Thu, 20 Aug 2026 16:09:43 +0000 by mgm_03
How Annotations Work, How to Understand Their Implementation, and a Typical Annotation-driven AOP Workflow
1. The Core Principle of Annotations: "Marker + Parser" Duo
Compare an annotation to a label on a package:
Annotation = label (e.g., "Fragile", "Keep Refrigerated"). It only describes a property; it performs no action.
Parser = courier / warehouse worker. When they see the label, they perform the corresponding act ...
Posted on Sun, 19 Jul 2026 16:22:03 +0000 by quickphp