Hallo, ich lese gerade einenxlsx Datei mitXSSF vonApche POI. Jetzt möchte ich die Farbe der Zelle lesen und dieselbe Farbe auf neue anwendenxlsx Datei. wie mache ich das Mein Code ist:

public void readXLSXFile(String filePath) throws FileNotFoundException, IOException
    {
        XSSFRow row;
        XSSFRow new_row;
        XSSFSheet sheet;
        XSSFCell cell;
        XSSFCell new_cell;
        XSSFCellStyle cellStyle;
        XSSFDataFormat dataFormat;
        XSSFColor color;

        XSSFWorkbook xssfWorkbook = new XSSFWorkbook(new FileInputStream(filePath));
        XSSFWorkbook workbook = new XSSFWorkbook();
        XSSFSheet new_sheet = (XSSFSheet) workbook.createSheet();
        for(int i = 0; i < xssfWorkbook.getNumberOfSheets(); i++ )
        {
            sheet = xssfWorkbook.getSheetAt(i);
            for(int j =0; j<sheet.getLastRowNum(); j++)
            {
                row = (XSSFRow) sheet.getRow(j);
                new_row = new_sheet.createRow(j);
                for(int k = 0; k<row.getLastCellNum(); k++)
                {
                    cell = row.getCell(k);
                    new_cell = new_row.createCell(k);
                    cellStyle = workbook.createCellStyle();
                    dataFormat = workbook.createDataFormat();
                    cellStyle.setDataFormat(dataFormat.getFormat(cell.getCellStyle().getDataFormatString()));
                    color = cell.getCellStyle().getFillBackgroundColorColor();
                    cellStyle.setFillForegroundColor(color);
                    new_cell.setCellStyle(cellStyle);
                    System.out.println(cell.getCellStyle().getFillForegroundColor()+"#");
                    switch (cell.getCellType()) {
                    case 0:
                        new_cell.setCellValue(cell.getNumericCellValue());
                        break;
                    case 1:
                        new_cell.setCellValue(cell.getStringCellValue());
                        break;
                    case 2:
                        new_cell.setCellValue(cell.getNumericCellValue());
                        break;
                    case 3:
                        new_cell.setCellValue(cell.getStringCellValue());
                        break;
                    case 4:
                        new_cell.setCellValue(cell.getBooleanCellValue());
                        break;
                    case 5:
                        new_cell.setCellValue(cell.getErrorCellString());
                        break;
                    default:
                        new_cell.setCellValue(cell.getStringCellValue());
                        break;
                    }
                }
            }
        }
        workbook.write(new FileOutputStream("G:\\lalit.xlsx"));
    }

Ich benutze Apche POI 3.8.