Spring Boot FAQ: Top Questions

Global exception handling in Spring Boot can be done using @ControllerAdvice and @ExceptionHandler annotations to manage exceptions across the entire application.

🗺️ Step-by-Step:

1. Create a class annotated with @ControllerAdvice.
2. Define methods using @ExceptionHandler for specific exceptions.

📥 Example:

@ControllerAdvice
public class GlobalExceptionHandler {

  @ExceptionHandler(ResourceNotFoundException.class)
  public ResponseEntity<String> handleNotFound(ResourceNotFoundException ex) {
    return new ResponseEntity<>(ex.getMessage(), HttpStatus.NOT_FOUND);
  }
}

🏆 Expected Output:

Returns 404 status with custom error message for ResourceNotFoundException.

🛠️ Use Cases:

• Custom error responses for different exceptions.
• Centralized exception management.