java请求处理失败；嵌套的异常是org。springframework。交易非法交易状态例外

Question

你能帮我解决这个错误吗

HTTP Status 500 - Request processing failed; nested exception is org.springframework.transaction.IllegalTransactionStateException: Transaction is already completed - do not call commit or rollback more than once per transaction

密码

@Override
    public String saveTemplatesToPCA(List<FilesTemplateDomain> fileTemplates) {
         TransactionDefinition transactionDefinition = new DefaultTransactionDefinition();
         TransactionStatus status = transactionManager.getTransaction(transactionDefinition);
        try {
            template.saveOrUpdateAll(fileTemplates);
            transactionManager.commit(status);

            return "success";
        } catch (Exception e) {
            transactionManager.rollback(status);
            System.out.println("Exception in saveTemplatesToPCA() : "+e);
            return "fail";
        }
    }

Answer 1

处理此异常

@Override
    public String saveTemplatesToPCA(List<FilesTemplateDomain> fileTemplates) {
         TransactionDefinition transactionDefinition = new DefaultTransactionDefinition();
         TransactionStatus status = transactionManager.getTransaction(transactionDefinition);
        try {
            template.saveOrUpdateAll(fileTemplates);
            transactionManager.commit(status);

            return "success";
        } catch (Exception e) {
            try{
            transactionManager.rollback(status);
            }catch(Exception ee){
                System.out.println("Exception in commit or rollback : "+ee);
            }
            System.out.println("Exception in saveTemplatesToPCA() : "+e);
            return "fail";
        }
    }