[JAVA]RestControllerAdvice ExceptionHandler设置全局异常返回对象时，始终显示{}

@RestControllerAdvice
@Slf4j
public class GlobalRestExceptionHandler {
    @ExceptionHandler(value = BusinessException.class)
    public String handleException(BusinessException e) {
        return JSON.toJSONString(e);
    }

    @ExceptionHandler(Exception.class)
    public ResponseEntity<JSONObject> handleException(Exception e) {
        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(JSONObject.parseObject(JSON.toJSONString(Response.fail(e.getMessage()))));
    }
}