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您好所有我读一个xlsx使用文件XSSF的Apche POI.现在我想读取单元格的颜色并在新xlsx文件上应用相同的颜色.我该怎么做 我的代码是:

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 = …