【发布时间】：2021-12-06 07:51:27
【问题描述】：
这是我的代码，我在这里接受 Excel 文件并读取它。之后我读取行值的 Excel 文件并将它们插入到数据库中，然后插入到相应的列中。最后，我把文件放在电脑上我确定好的文件夹里。但是我在这里遇到了一个问题，当我想在api中多次下载同名文件时，它表明我最初只是第一次将它上传到文件夹，但它会将值打印到数据库中。我无法对此做出任何逻辑，您认为我可以在这里做什么？
@Override
public ResponseEntity<? extends Response> acceptExcelFileAndSenderName(MultipartFile filePath, String senderName) throws IOException {
String fileName = filePath.getOriginalFilename();
if (fileName.substring(fileName.length() - 5).equals(".xlsx")) {
try (InputStream excelFile = filePath.getInputStream()) {
String phoneNumber = "";
String textMessage = "";
Workbook workbook = new XSSFWorkbook(excelFile);
Sheet datatypeSheet = workbook.getSheetAt(0);
Iterator<Row> iterator = datatypeSheet.iterator();
while (iterator.hasNext()) {
Row currentRow = iterator.next();
Iterator<Cell> cellIterator = currentRow.iterator();
while (cellIterator.hasNext()) {
Cell currentCell = cellIterator.next();
if (currentCell.getCellType() == CellType.NUMERIC) {
phoneNumber = NumberToTextConverter.toText(currentCell.getNumericCellValue());
} else if (currentCell.getCellType() == CellType.STRING) {
textMessage = String.valueOf(currentCell.getStringCellValue());
}
}
FileDetail fileDetail = new FileDetail();
fileDetail.setPhoneNumber(phoneNumber);
fileDetail.setTextMessage(textMessage);
fileDetail.setSender(senderName);
this.fileDetailRepository.save(fileDetail);
}
excelFile.close();
String destination = "C:\\Users\\anar.memmedov\\Desktop\\app\\" + filePath.getOriginalFilename();
File file1 = new File(destination);
filePath.transferTo(file1);
return new ResponseEntity<>(new SuccessResponse(MessageCase.FILE_SUCCESSFULLY_WRITTEN_TO_DATABASE.getMessage(), 200), HttpStatus.OK);
} catch (IOException e) {
e.printStackTrace();
}
}
return new ResponseEntity<>(new ErrorResponse(MessageCase.FAILED_HAPPEND_WHEN_FILE_WRITTEN_TO_DATABASE.getMessage(), 400), HttpStatus.BAD_REQUEST);
}
【问题讨论】：