为什么我的XSSFSheet没有getDrawingPatriarch方法。官网的api上有啊！！

Question

The method getDrawingPatriarch() is undefined for the type XSSFSheet

 private static List<XSSFTextBox> getTextboxes(XSSFSheet worksheet) {
        List<XSSFTextBox> boxes = new ArrayList<XSSFTextBox>();
        XSSFDrawing a=worksheet.createDrawingPatriarch();
      worksheet.getDrawingPatriarch(); //这儿报错了，方法未定义
        List<XSSFShape> list=a.getShapes(); 
        for(XSSFShape dr:list){
            if(dr instanceof XSSFTextBox){
                boxes.add((XSSFTextBox)dr);
            }
        }
        return boxes;
    }

Answer 1

我用的版本是poi3.8的