[alibaba/easyexcel]文件上传了为什么读不出来？xls可以读取内容，xlsx invoke都进不了,求解

public int bulkInsert(MultipartFile file) { InputStream inputStream = null; try { inputStream = file.getInputStream(); String name = file.getOriginalFilename().toLowerCase(); ExcelReader reader = new ExcelReader(inputStream, name.endsWith(".xls") ? ExcelTypeEnum.XLS : ExcelTypeEnum.XLSX, null, new AnalysisEventListener<List>() { @Override public void invoke(List object, AnalysisContext context) { System.out.println( "当前sheet:" + context.getCurrentSheet().getSheetNo() + " 当前行：" + context.getCurrentRowNum()

• " data:" + object+"\n"); }

                  @Override
                  public void doAfterAllAnalysed(AnalysisContext context) {
  
                  }
              });
  
      reader.read();
  } catch (Exception e) {
      e.printStackTrace();
  
  } finally {
      try {
          inputStream.close();
      } catch (IOException e) {
          e.printStackTrace();
      }
  }
  return 0;

  }