org.springframework.dao.InvalidDataAccessApiUsage

Question

Resource.java    @RequestMapping(value = "/updateDetails", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE)    @PreAuthorize("hasRole('" + ROLE_BPM_EAUTH_WF_CLIENT + "')")    public ResponseEntity<UpdateStatus> updateDetails(@RequestBody updateRequest updateRequest) throws ServiceException {        UpdateStatus response = null;        try{             response = controlService.updateDetails(updateRequest);        }catch (ControlServiceException controlServiceException) {            if(ErrorCodes.ERROR_CODE.FAILED_TO_UPDATE_DETAILS.getCode().equals(controlServiceException.getErrorCode())                    || ErrorCodes.ERROR_CODE.FAILED_TO_UPDATE_DETAILS_STALE_DATA_ISSUE.getCode().equals(controlServiceException.getErrorCode())) {                    final int maxRetryCount = controlService.getMaxRetryCountFromConfig();                     response = retryUpdateDetails(updateRequest, 1, maxRetryCount);            } else{                throw controlServiceException;                }            }        return new ResponseEntity<>(response, HttpStatus.OK);    } Service.java @Override@Transactional(propagation = Propagation.REQUIRED, rollbackFor = { ServiceException.class })public UpdateStatus updateDetails(UpdateRequest updateRequest) throws ServiceException { Object object = updateRequest.getObject(); updateDetailActions(updateRequest); return InformationTransformer.transformStatus(object, true);} private void updateDetailActions(updateRequest updateRequest) throws ServiceException { DefaultDetails defaultDetails = null; if (updateRequest.getEventType().equals(EventTypeEnum.A.getValue())) { updateStatusToA(updateRequest); }   

Answer 1

你如何访问你的Service班级？对于要创建的 Spring 事务，您需要通过 Spring Application Context 访问您的类，然后而不是通过例如创建一个新实例（new Service()将不起作用），也不会通过变量访问实例或此类（即使变量它的值最初是由 spring 设置的）

Answer 2

当您在非事务上下文中执行数据库事务时，通常会发生此异常。对于执行数据库事务的方法，您在 spring 中使用 @Transactional 注释。有关事务管理的详细信息，您可以参考 https://docs.spring.io/spring/docs/4.2.x/spring-framework-reference/html/transaction.html