Question

我正在使用poi的新版本 - 3.11

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.11</version>
</dependency>

我发现用于设置前景色的旧代码不再编译，但我的新代码也不起作用。下面的代码将Red设置为整个工作表的前景色，但我需要各种单元格颜色。单元格值设置正确。

XSSFWorkbook workbook = new XSSFWorkbook();
XSSFSheet sheet = workbook.createSheet("Calendar");

for (int rowNum=0; rowNum<n; rowNum ++)
{
    Row row = sheet.createRow(rowNum);
    for (int colNum = 0; colNum < m; colNum++) 
    {
        Cell cell = row.createCell(colNum);
        cell.setCellValue(grid[rowNum][colNum]);
        CellStyle cellStyle = cell.getCellStyle();
        cellStyle.setFillPattern(CellStyle.SOLID_FOREGROUND);

        cellStyle.setFillForegroundColor(HSSFColor.WHITE.index);
        if (res[rowNum][colNum] == CellEnum.BUSY.getValue())
        {
            cell.setCellValue(res[rowNum][colNum] + "|" + grid[rowNum][colNum]);
            cellStyle.setFillForegroundColor(HSSFColor.RED.index);
        }
        if (res[rowNum][colNum] == CellEnum.Pass.getValue())
        {
            cell.setCellValue(res[rowNum][colNum] + "|" + grid[rowNum][colNum]);
            cellStyle.setFillForegroundColor(HSSFColor.YELLOW.index);
        }
    }
}

Answer 1

Axel Richter的评论实际上给出了解决方案。所以，精炼的代码如下：

    XSSFWorkbook workbook = new XSSFWorkbook();
    XSSFSheet sheet = workbook.createSheet("Calendar");
    CellStyle styleWhite = workbook.createCellStyle();
    styleWhite.setFillForegroundColor(IndexedColors.WHITE.getIndex());
    styleWhite.setFillPattern(CellStyle.SOLID_FOREGROUND);

    CellStyle styleYellow = workbook.createCellStyle();
    styleYellow.setFillForegroundColor(IndexedColors.YELLOW.getIndex());
    styleYellow.setFillPattern(CellStyle.SOLID_FOREGROUND);

    CellStyle styleRed = workbook.createCellStyle();
    styleRed.setFillForegroundColor(IndexedColors.RED.getIndex());
    styleRed.setFillPattern(CellStyle.SOLID_FOREGROUND);

    for (int rowNum = 0; rowNum < n; rowNum++) {
        Row row = sheet.createRow(rowNum);
        for (int colNum = 0; colNum < m; colNum++) {
            Cell cell = row.createCell(colNum);
            cell.setCellValue(grid[rowNum][colNum]);
            cell.setCellStyle(styleWhite);
            if (res[rowNum][colNum] == CellEnum.BUSY.getValue()) {
                cell.setCellStyle(styleRed);
            } else if (res[rowNum][colNum] == CellEnum.Pass.getValue()) {
                cell.setCellStyle(styleYellow);
            } else {
                cell.setCellStyle(styleWhite);
            }
        }
    }

如何为apache-poi的新版本中的单个单元格设置Excel单元格前景色？

1 个答案: