POI 使用顏色字符串生成XSSFColor對象

public static int[] hexToRgb(String hex) {
    String colorStr = hex;
    if (hex.startsWith("#")) {
        colorStr = hex.substring(1);
    }
    if (StringUtils.length(colorStr) == 8) {
        colorStr = hex.substring(2);
    }
    int  r=  Integer.valueOf( colorStr.substring( 0, 2 ), 16 );
    int  g=  Integer.valueOf( colorStr.substring( 2, 4 ), 16 );
    int  b=  Integer.valueOf( colorStr.substring( 4, 6 ), 16 );
    
    return new int[] { r, g, b }; 
}

private XSSFColor createXssfColor(String color) {
    int[] rgbColor = hexToRgb(color);
    XSSFColor xssfColor = new XSSFColor(new java.awt.Color(rgbColor[0], rgbColor[1], rgbColor[2]), new DefaultIndexedColorMap());
    return xssfColor;
}