在JExcelApi中创建新颜色

import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;

WritableWorkbook workbook = Workbook.createWorkbook(new File("example.xls"));
WritableSheet sheet = workbook.createSheet("Sheet1", 0);

jxl.format.Colour customColor = new jxl.format.Colour(255, 0, 0);

jxl.write.WritableCellFormat customCellFormat = new jxl.write.WritableCellFormat();
customCellFormat.setBackground(customColor);

Label label = new Label(0, 0, "Hello, World!", customCellFormat);
sheet.addCell(label);

workbook.write();
workbook.close();