当用户身份认证失败时，会抛出UnauthorizedException，我们可以通过统一异常处理来处理该异常

@RestControllerAdvice
public class UserExceptionHandler {
​
    @ExceptionHandler(UnauthorizedException.class)
    @ResponseStatus(HttpStatus.UNAUTHORIZED)
    public ServerResponseVO UnAuthorizedExceptionHandler(UnauthorizedException e) {
        return ServerResponseVO.error(ServerResponseEnum.UNAUTHORIZED);
    }
}