java创建、操作表格

@Test
    public void test1() throws RowsExceededException, WriteException, IOException, InterruptedException {
        File file=new File("E:\\1.xlsx");//文件名不能出现时间格式
        OutputStream os =new FileOutputStream(file);
        //创建工作薄
        WritableWorkbook workbook = Workbook.createWorkbook(os);
        //创建新的一页
        WritableSheet sheet = workbook.createSheet("First Sheet",0);
        //创建要显示的内容,创建一个单元格，第一个参数为列坐标，第二个参数为行坐标，第三个参数为内容
        Label xuexiao = new Label(0,0,"学校");
        sheet.addCell(xuexiao);
        Label zhuanye = new Label(1,0,"专业");
        sheet.addCell(zhuanye);
        Label jingzhengli = new Label(2,0,"专业竞争力");
        sheet.addCell(jingzhengli);
        
        Label qinghua = new Label(0,1,"清华大学");
        sheet.addCell(qinghua);
        Label jisuanji = new Label(1,1,"计算机专业");
        sheet.addCell(jisuanji);
        Label gao = new Label(2,1,"高");
        sheet.addCell(gao);
        
        Label beida = new Label(0,2,"北京大学");
        sheet.addCell(beida);
        Label falv = new Label(1,2,"法律专业");
        sheet.addCell(falv);
        Label zhong = new Label(2,2,"中");
        sheet.addCell(zhong);
        
        Label ligong = new Label(0,3,"北京理工大学");
        sheet.addCell(ligong);
        Label hangkong = new Label(1,3,"航空专业");
        sheet.addCell(hangkong);
        Label di = new Label(2,3,"低");
        sheet.addCell(di);
        
        //把创建的内容写入到输出流中，并关闭输出流
        workbook.write();
        workbook.close();
        os.close();
    }