Question

我想比较Excel文件，看看它们是否相同。我可以选择我的Excel文件并阅读它们。我有2个Excel表格，内容相同，但一个是.xls，而是.xlsx格式。我使用以下代码来读取我的文件（对于带有HSSFWorkbook的xls等）

private String xlsx(File inputFile) {
        String outputString = "";

        // For storing data into String
        StringBuffer data = new StringBuffer();
        try {
            // Get the workbook object for XLSX file
            XSSFWorkbook wBook = new XSSFWorkbook(new FileInputStream(inputFile));

            // Get first sheet from the workbook
            XSSFSheet sheet = wBook.getSheetAt(0);
            Row row;
            Cell cell;

            // Iterate through each rows from first sheet
            Iterator<Row> rowIterator = sheet.iterator();

            while (rowIterator.hasNext()) {
                row = rowIterator.next();

                // For each row, iterate through each columns
                Iterator<Cell> cellIterator = row.cellIterator();
                while (cellIterator.hasNext()) {

                    cell = cellIterator.next();

                    data.append(cell + ";");
                }
                data.append("\n");
            }
            System.out.println(data.toString());
            outputString = data.toString();
            wBook.close();
        } catch (Exception ioe) {
            ioe.printStackTrace();
        }

        return outputString;
    }

在我的Excel中我有空白单元格 - 当我用xls读取它时我得到DATA;;;;;DATA这是正确的但是当我在xlsx中执行相同操作时我得到DATA;DATA

Code以某种方式跳过空单元格？！我该如何解决这个问题？在此先感谢

Answer 1

经过一些谷歌研究和尝试不同的事情后，我找到了解决问题的方法。 Iterator跳过空单元格，因为它们没有值 - 它们是空的 - 但是在xls文件中看起来它们不是null - 无论

我的代码：

private String xlsx(File inputFile) {
    String outputString = "";
    System.out.println("start");
    // For storing data into String
    StringBuffer data = new StringBuffer();
    try {
        // Get the workbook object for XLSX file
        XSSFWorkbook wBook = new XSSFWorkbook(new FileInputStream(inputFile));

        // Get first sheet from the workbook
        XSSFSheet sheet = wBook.getSheetAt(0);


     // Decide which rows to process
        int rowStart =  0;
        int rowEnd =  sheet.getLastRowNum()+1;

        for (int rowNum = rowStart; rowNum < rowEnd; rowNum++) {
           Row r = sheet.getRow(rowNum);

           int lastColumn = r.getLastCellNum();

           for (int cn = 0; cn < lastColumn; cn++) {
              Cell c = r.getCell(cn);
              if (c == null) {
                 data.append("" + ";");
              } else {
                 data.append(c + ";");
              }
           }
           data.append("\n");
        }

        System.out.println(data.toString());
        outputString = data.toString();
        wBook.close();
    } catch (Exception ioe) {
        ioe.printStackTrace();
    }
    System.out.println("end");
    return outputString;
}

Excel to String xls / xlsx的结果不同

1 个答案: