如何更改特定单元格apache poi的字体颜色3.9

时间:2013-03-31 13:58:24

标签: java excel apache-poi xls

我可以在apache POI中使用以下代码更改前景色。现在我想更改单个单元格的字体颜色。

CellStyle style = wb.createCellStyle();
                        style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
                        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
                        cell = rowxl.createCell((short) 7);
                        cell.setCellValue(" <<<<ONTRACK>>>>");
                        cell.setCellStyle(style);


                        rowxl.createCell(0).setCellValue(TEAM);

我试过这个,但它没有改变前两列的颜色

代码:

public class fclr {
     public static void main(String[] args)  throws Exception {

         InputStream inp = new FileInputStream("c:/workbook1.xls");
            Workbook wb = WorkbookFactory.create(inp);
            CreationHelper createHelper = wb.getCreationHelper();
            Sheet sheet = wb.getSheetAt(0);
            Row rowxl = sheet.createRow((short)0);


            Cell cell = rowxl.createCell(0);

            //apply some colors from the standard palette,
            // as in the previous examples.
            //we'll use red text on a lime background

            CellStyle style = wb.createCellStyle();


          rowxl.createCell(1).setCellValue("ABC");
        rowxl.createCell(2).setCellValue("aaa");
            Font font = wb.createFont();
            font.setColor(HSSFColor.BLACK.index);
            style.setFont(font);


            cell.setCellStyle(style);

            FileOutputStream fileOut = new FileOutputStream("c:/workbook1.xls");
            wb.write(fileOut);
            fileOut.close();



     }

} 

1 个答案:

答案 0 :(得分:55)

您目前正在创建一些细胞两次,这就是为什么它出错了

首先,我建议您将单元格样式创建移到代码顶部。请记住 - 单元格样式的范围限定为工作簿,因此不要为每个单元格创建一个!

        CellStyle style = wb.createCellStyle();
        Font font = wb.createFont();
        font.setColor(HSSFColor.HSSFColorPredefined.BLACK.getIndex());
        style.setFont(font);
        // Set more colours on the style as needed
        // Set formatting rules on the style as needed

现在,根据您的偏好,您可以像这样创建单元格:

        Cell cell;

        cell = rowxl.createCell(0);
        cell.setCellValue("ABC");
        cell.setCellStyle(style);

        cell = rowxl.createCell(1);
        cell.setCellValue("aaa");
        cell.setCellStyle(style);

或者像这样:

    rowxl.createCell(1).setCellValue("ABC");
    rowxl.createCell(2).setCellValue("aaa");
    rowx1.getCell(1).setCellStyle(style);
    rowx1.getCell(2).setCellStyle(style);

就是不要做你现在所拥有的奇怪混合,因为你最终创造了两次细胞并错过了造型!