android 学习

今天完成了把信息导出到表格中

 private void exportExcel(Context context) {
        String path = Environment.getExternalStorageDirectory().getPath() + "/test3";
        File file = new File(path);
        if (!file.exists()) {
            file.mkdirs();
        }
        File files = new File(file.getPath()+"/"+"text3.xls");
        if (!files.exists()) {// 文件存在返回false
            try {
                files.createNewFile();//创建文件
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        Toast.makeText(MainActivity.this, "存储到"+files.getPath(), Toast.LENGTH_SHORT).show();
        initExcel(files);
    }//创建表格



    public  void initExcel(File filePath){

        try {
            WritableWorkbook workbook = null;
            if (!filePath.exists()) {
                filePath.createNewFile();
            }




            workbook = Workbook.createWorkbook(filePath);
            WritableSheet sheet = workbook.createSheet("test3",0);
            sheet.mergeCells(0,0,6,0);
            Label header = new Label(0,0,"学生14天健康情况登记表");
            sheet.addCell(header);
            sheet.mergeCells(0,1,3,1);
            sheet.addCell(new Label(0,1,"单位名称："+cla));

            sheet.mergeCells(4,1,6,1);
            sheet.addCell(new Label(4,1,"填表日期："+getDate()));

            sheet.addCell(new Label(0,2,"姓名"));
            sheet.addCell(new Label(1,2,name));
            sheet.mergeCells(1,2,3,2);
            sheet.addCell(new Label(4,2,"学号："));
            sheet.addCell(new Label(5,2,xuehao));
            sheet.mergeCells(5,2,6,2);
            sheet.addCell(new Label(0,3,"目前健康状况："));
            sheet.mergeCells(1,3,3,3);
            sheet.addCell(new Label(1,3,"正常"));
            sheet.addCell(new Label(4,3,"手机号"));
            sheet.addCell(new Label(5,3,phone));
            sheet.mergeCells(5,3,6,3);
            sheet.mergeCells(0,4,6,4);
            sheet.addCell(new Label(0,4,"每日体温、健康状况监测（周期14天）"));
            String [] colName = {"日期","每日体温℃","健康状况","当日所在地","备注"};
            sheet.mergeCells(3,5,4,5);
            sheet.mergeCells(5,5,6,5);
            for (int col=0;col<3;col++){
                sheet.addCell(new Label(col, 5, colName[col]));
            }
            sheet.addCell(new Label(3, 5, colName[3]));
            sheet.addCell(new Label(5, 5, colName[4]));

            int j=6;
            dbHelper=new DatabaseHelper(this,"TTList3.db",null,3);
            SQLiteDatabase db2=dbHelper.getWritableDatabase();
            Cursor cursor2 = db2.query("TTList3", null, "姓名=?", new String[]{name}, null, null, null);//读取数据库所有信息
            // Cursor cursor=db.query("tt",null,"专业=?",new String[]{"软件工程"},
            //null,null,null);//读取数据库里面专业是软件工程的所有信息
            if(cursor2.moveToFirst()){
                do{
                    String name=cursor2.getString(cursor2.getColumnIndex("姓名"));
                    String tt=cursor2.getString(cursor2.getColumnIndex("体温"));
                    String time=cursor2.getString(cursor2.getColumnIndex("日期时间"));
                    String location=cursor2.getString(cursor2.getColumnIndex("所在地"));

                    String str = time.substring(0, time.indexOf(" "));
                    sheet.addCell(new Label(0,j,str));
                    sheet.addCell(new Label(1,j,tt));
                    double k = Double.parseDouble(tt);
                    if (k < 37.3 &&k > 35) {
                        sheet.addCell(new Label(2,j,"正常"));
                    } else {
                        sheet.addCell(new Label(2,j,"异常"));
                    }
                    sheet.addCell(new Label(3,j,location));
                    j++;
                }while (cursor2.moveToNext());
            }
            cursor2.close();



            sheet.mergeCells(0,20,6,20);
            sheet.addCell(new Label(0,20,"本人承诺：自觉履行疫情防控责任和义务，保证以上填报信息全部属实，如有隐瞒，自愿承担相应法律后果。"));
            sheet.mergeCells(0,21,1,21);
            sheet.addCell(new Label(0,21,"本人签字："));
            sheet.mergeCells(2,21,3,21);
            sheet.addCell(new Label(4,21,"签字日期："));
            sheet.mergeCells(5,21,6,21);
            workbook.write();
            workbook.close();

        } catch (IOException e) {
            e.printStackTrace();
        } catch (RowsExceededException e) {
            e.printStackTrace();
        } catch (WriteException e) {
            e.printStackTrace();
        }

    }//对表格处理