Tratamento de Exceções

Vá no pacote Controller, e crie um subpacote "exceptions".

Crie:

1. StandardError

public class StandardError implements Serializable {
	private static final long serialVersionUID = 1L;

	private Long timestamp;
	private Integer status;
	private String error;
	private String message;
	private String path;
}

1. ResourceExceptionHandler

@ControllerAdvice
public class ResourceExceptionHandler {

	@ExceptionHandler(ResourceNotFoundException.class)
	public ResponseEntity<StandardError> resourceNotFound(ResourceNotFoundException e, HttpServletRequest request) {
		
		HttpStatus status = HttpStatus.NOT_FOUND;
		
		StandardError error = new StandardError();
		error.setError("Not found");
		error.setMessage(e.getMessage());
		error.setPath(request.getRequestURI());
		error.setStatus(status.value());
		error.setTimestamp(Instant.now());
	
		return ResponseEntity.status(status).body(error);
	}
}