如何在XSSF中获取背景单元格颜色

Question

I am using apache poi 3.9 in my project I need to get XSSF file cell background color.

Workbook myWorkBook = WorkbookFactory.create(new File(filePath));
Sheet mySheet = myWorkBook.getSheetAt(0);
Row currentRow = null;
Iterator<Row> rowIterator = mySheet.iterator();
while (rowIterator.hasNext())
{
currentRow = (Row) rowIterator.next();
totalColumns = currentRow.getPhysicalNumberOfCells();

for (int column = 0; column < totalColumns; column++)
{
Cell cell = currentRow.getCell(column);
CellStyle cellStyle = cell.getCellStyle();
short colorIdx=cellStyle.getFillForegroundColor();
// I am struct in this step  to get XSSF  cell background color

}
}

Answer 1

In binary BIFF ( *.xls ) format ( HSSF in apache poi ), colors can only be indexed colors from the color palette.

But in Office Open XML ( *.xlsx ) format ( XSSF in apache poi ), colors can also be given in RGB form. So in XSSF not all colors will be indexed colors. That's why CellStyle.getFillForegroundColor returns 0 if the fill foreground color (the color of the fill pattern) is not an indexed color.

Do using CellStyle.getFillForegroundColorColor in XSSF . This returns a Color which is a XSSFColor in XSSF .