Spring引导防止错误时生成空文件

我通过设置try-catch块解决了这个问题。

try {
            DateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss");
            String currentDateTime = dateFormatter.format(new Date());
            String headerKey = "Content-Disposition";
            String headerValue = "attachment; filename=" + tableName + "_" + currentDateTime + ".docx";
            response.setHeader(headerKey, headerValue);
            response.setContentType("application/vnd.openxmlformats-officedocument.wordprocessingml.document");
            if (StringUtils.hasLength(search)) {
                describeDatabaseRepository.generateWord(tableName, username, search, searchColumn, response);
            } else {
                describeDatabaseRepository.generateWord(tableName, username, response);
            }
        } catch (Exception e) {
            response.reset();
            response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value());
            response.setContentType("application/json");
            response.setCharacterEncoding("UTF-8");
            ABCError err = new ABCError();
            err.setCode(HttpStatus.INTERNAL_SERVER_ERROR.value());
            err.setDevMessage(e.getMessage());
            err.setMessage("Something went wrong.Could not generate the file.");
            response.getWriter().write(objectMapper.writeValueAsString(err));
        }