大二下学期每日总结之第一次个人作业(第二阶段:生成excel)

今日实现了第一次个作业的生成个人14天健康表的功能,要生成excel所以需要相关的工具类,通过jxl.jar实现:

首先实现个人14天体温登记健康表要有14天的数据,数据的获取比较简单,获取学生id,通过id查询数据库获取数据。

生成十四天的数据,所以我们只要查询的数据按倒序排列,然后去前14个即可。下面为查询代码:

public List<WenDate> queryDataFor(String querystr, String str)
    {
        String [] strs={str};
        Cursor cursor=sqldb.rawQuery("select * from wendudate where stuid=? order by msec desc",strs);
        if(cursor.moveToFirst())
        {
            do{
                String name=cursor.getString(cursor.getColumnIndex("name"));
                String stuid=cursor.getString(cursor.getColumnIndex("stuid"));
                String address=cursor.getString(cursor.getColumnIndex("address"));
                Float wendu=cursor.getFloat(cursor.getColumnIndex("wendu"));
                String dateandtime=cursor.getString(cursor.getColumnIndex("dateandtime"));
                String special=cursor.getString(cursor.getColumnIndex("special"));
                String stuclass=cursor.getString(cursor.getColumnIndex("stuclass"));
                Long msec=cursor.getLong(cursor.getColumnIndex("msec"));
                System.out.println("wendudate:::"+name+stuid+address+wendu+dateandtime+special+stuclass+msec);
                wenDate =new WenDate(dateandtime,address,wendu,special,stuid,name,stuclass,msec);
                listWenDate.add(wenDate);
            }while(cursor.moveToNext());
        }

数据有了现在需要将数据写入excel, 需要引入jxl.jar包。

步骤也很简单,首先打开一个已存在的excel:

Workbook wb=Workbook.getWorkbook(new File("文件地址"));

WritableWorkbook wbook = wb.createWorkbook(new File("文件地址"),wb);

获取工作区:WritableSheet wsheet = wbook.getSheet(0);序号从0开始。

设置你要插入的行与列,以及内容:Label time = new Label(5, 1, str)//行与列也是从0开始,第一个参数为行。

插入数据:wsheet.addCell(time);最后写入并关闭wbook.write();wbook.close();下面为代码:

  try {
            Workbook wb=Workbook.getWorkbook(new File("/storage/emulated/0/$MuMu共享文件夹/excel1.xls"));
            WritableWorkbook wbook = wb.createWorkbook(new File("/storage/emulated/0/$MuMu共享文件夹/excel1.xls"),wb);
// 创建一个工作表 第一个工作区
            WritableSheet wsheet = wbook.getSheet(0);
            Label time = new Label(5, 1, wenDate.getDateandtime());wsheet.addCell(time);
            Label name = new Label(1, 2, stuDate.getStuName());wsheet.addCell(name );
            Label stuId = new Label(5, 2, stuDate.getStuID());wsheet.addCell(stuId);
            if(wenDate.getWendu()<37){
                Label wendusitu = new Label(1, 3, "良好");wsheet.addCell(wendusitu);
            }else {
                Label wendusitu = new Label(1, 3, "发热");wsheet.addCell(wendusitu);
            }
            Label phone = new Label(5, 3, stuDate.getStuPhone());wsheet.addCell(phone);
            if(listwendate.size()<14){
                for(int i=0;i<listwendate.size();i++){
                    Label Time=new Label(0,6+i,listwendate.get(i).getDateandtime());wsheet.addCell(Time);
                    Label wendu = new Label(1, 6+i, listwendate.get(i).getWendu().toString());wsheet.addCell(wendu);
                    if(listwendate.get(i).getWendu()<37){
                        Label situation = new Label(2, 6+i,"良好");wsheet.addCell(situation);
                    }else{
                        Label situation = new Label(2, 6+i,"发热");wsheet.addCell(situation);
                    }
                    Label address = new Label(3, 6+i,listwendate.get(i).getAddress());wsheet.addCell(address);
                    Label special = new Label(5, 6+i,listwendate.get(i).getSpecial());wsheet.addCell(special);
                }
            }else {
                for(int i=0;i<14;i++){
                    Label Time=new Label(0,6+i,listwendate.get(i).getDateandtime());wsheet.addCell(Time);
                    Label wendu = new Label(1, 6+i, listwendate.get(i).getWendu().toString());wsheet.addCell(wendu);
                    if(listwendate.get(i).getWendu()<37){
                        Label situation = new Label(2, 6+i,"良好");wsheet.addCell(situation);
                    }else{
                        Label situation = new Label(2, 6+i,"发热");wsheet.addCell(situation);
                    }
                    Label address = new Label(3, 6+i,listwendate.get(i).getAddress());wsheet.addCell(address);
                    Label special = new Label(5, 6+i,listwendate.get(i).getSpecial());wsheet.addCell(special);
                }
            }
// 把值加到工作表中
// 写入文件
            wbook.write();
            wbook.close();
            System.out.println("创建成功!");
        } catch (Exception e) {
// TODO: handle exception
            e.printStackTrace();
        }

 

 
原文地址:https://www.cnblogs.com/fengchuiguobanxia/p/14500790.html