如何设置单元格的背景色？

Question

I am trying to set the background color of a cell on a excel sheet. I can't get the XSSFColor to work. This is what I have so far:

XSSFCellStyle style = (XSSFCellStyle)workbook.createCellStyle();
byte[] rgb = new byte[3];
rgb[0] = (byte) 100;
rgb[1] = (byte) 150;
rgb[2] = (byte) 200;
XSSFColor color = new XSSFColor(rgb);
style.setFillForegroundColor(color);

The line XSSFColor color = new XSSFColor(rgb); does not compile:

How can I create a custom colored XSSFColor from RGB or Hex?

Answer 1

You should use XSSFColor(byte[] rgb, IndexedColorMap colorMap) constructor to create color instance. You may try to set colorMap as null here:

XSSFColor color = new XSSFColor(rgb, null);

Or use contructor without parameters and set rgb later:

XSSFColor color = new XSSFColor();
color.setRGB(rgb);