设置背景自定义颜色，XSSFWorkbook

Question

I use this code to change the font in excel to color, which I define

        Color sColor = new Color (value,0,0);
        XSSFColor userColor = new XSSFColor(sColor);

        CellStyle style = wb.createCellStyle();
        XSSFFont font = wb.createFont();

        font.setColor(userColor);
        style.setFont(font);
        cell.setCellStyle(style);

Can I change the cell's Background same way.

I saw the question here Setting background custom color not working for XSSF in Apache POI And I used the code:

        XSSFCellStyle cellStyle = wb.createCellStyle();
        XSSFColor color = new XSSFColor(new java.awt.Color(value, 0, 0));
        ((XSSFCellStyle)cellStyle).setFillBackgroundColor(color);

        cell.setCellStyle(cellStyle);

The background still always white.

Am sure that all other parts of the code written properly, because it works when I changed the font.

I have office 2010 on my computer

Answer 1

Thanks all I found solution now

        XSSFCellStyle cellStyle = wb.createCellStyle();

        XSSFColor color = new XSSFColor(new java.awt.Color(value, 0, 0));

        ((XSSFCellStyle)cellStyle).setFillBackgroundColor(color);
        cellStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        cellStyle.setFillForegroundColor(color); 
        cell.setCellStyle(cellStyle);

Answer 2

Create cell style object:

CellStyle backgroundStyle = workbook.createCellStyle(); 

Set custom color:

backgroundStyle.setFillForegroundColor(IndexedColors.YELLOW.getIndex());

Add style to the cell:

cell.setCellStyle(backgroundStyle);