java POI batch import

/**
* Read out all data information in
filePath* @param filePath absolute path of excel file
*
*/

public static void getDataFromExcel(String filePath){
        List<Map<String,Integer>> list = new ArrayList<Map<String, Integer>>();
        / / Determine whether it is an excel type file
        if(!filePath.endsWith(".xls")&&!filePath.endsWith(".xlsx")){
            System.out.println("The file is not of excel type");
        }
        
        FileInputStream fis =null;
        Workbook wookbook = null;
        int flag = 0;
        
        try{
            //Get a stream with an absolute address
              fis = new FileInputStream(filePath);
        }catch(Exception e){
            e.printStackTrace ();
        }
       
        try{
            //2003 version of excel, ending with .xls
            wookbook = new HSSFWorkbook(fis);//Get the workbook
             
        }catch (Exception ex){
            try{
            	fis = new FileInputStream(filePath);
                //2007 version of excel, ending with .xlsx
                wookbook = new XSSFWorkbook(filePath);//Get the workbook
            } catch (IOException e){
                // TODO Auto-generated catch block
                e.printStackTrace ();
            }
        }
        
        // get a worksheet
        Sheet sheet = wookbook.getSheetAt(0);
        
        //get header
        Row rowHead = sheet.getRow(0);
        
      //Place different headers according to different data
        Map<Object,Integer> headMap = new HashMap<Object, Integer>();
        
        
        //Determine whether the header is qualified ------------------------ here to see how many columns you have
        if(rowHead.getPhysicalNumberOfCells() != 2){
            System.out.println("The number of header columns does not correspond to the database to be imported");
        }
        
        try{
            //---------------- here according to how many columns your table has
            while (flag < 2){
                Cell cell = rowHead.getCell(flag);
                if (getRightTypeCell(cell).toString().equals("姓名")){
                    headMap.put("personName", flag);
                }
                if (getRightTypeCell(cell).toString().equals("性别")){
                    headMap.put("sex", flag);
                }
                flag++;
            }
        } catch (Exception e){
            e.printStackTrace ();
            System.out.println("The header is not standard, please re-import after modification");
        }
        
        //get the total number of rows of data
        int totalRowNum = sheet.getLastRowNum();
        // to get the property
        String name = "";
        String sex = "";
        List<PiousRegister> listPious = new ArrayList<PiousRegister>();
        List<PiousInfo> listPiousInfo = new ArrayList<PiousInfo>();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        
        if(0 == totalRowNum){
            System.out.println("There is no data in Excel!");
        }
        
        Cell cell_1 = null,cell_2 = null;
        
       // get all data
        for(int i = 1 ; i <= totalRowNum ; i++){
            // get the object in row i
            Row row = sheet.getRow(i);
            
            try{
                cell_1 = row.getCell(headMap.get("personName"));
                cell_2 = row.getCell(headMap.get("sex"));
            } catch (Exception e){
                e.printStackTrace ();
                System.out.println("Get cell error");
            }
            
            try{
            	if(cell_1 != null && cell_2 != null){
            		PiousRegister piousReg = new PiousRegister();
            		name = (String) getRightTypeCell(cell_1);
            		piousReg.setPersonName (name);
            		sex = (String) getRightTypeCell(cell_2);
            		piousReg.setPersonSex(sex.equals("男") ? 0 : 1);
            		System.out.println("Name: "+name+", Gender: "+sex);
            	}
            } catch (ClassCastException e){
                e.printStackTrace ();
                System.out.println("The data is not all numbers or all text!");
            }
            
        }
    }

	/**
     *     
     * @param cell an object of a cell
     * @return returns the value of the corresponding type of the cell
     */
    public static Object getRightTypeCell(Cell cell){
    	DecimalFormat df = new DecimalFormat("#");
        Object object = null;
        switch(cell.getCellType()){
            case Cell.CELL_TYPE_STRING :{
                object=cell.getStringCellValue();
                break;
            }
            case Cell.CELL_TYPE_NUMERIC :{
            	if(HSSFDateUtil.isCellDateFormatted(cell)){
               	 	SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
               	 	return sdf.format(HSSFDateUtil.getJavaDate(cell.getNumericCellValue())).toString();
           	 	}
            	return df.format(cell.getNumericCellValue());
            }
                
            case Cell.CELL_TYPE_FORMULA :{
                cell.setCellType(Cell.CELL_TYPE_NUMERIC);
                object=cell.getNumericCellValue();
                break;
            }
            
            case Cell.CELL_TYPE_BLANK :{
                cell.setCellType(Cell.CELL_TYPE_BLANK);
                object=cell.getStringCellValue();
                break;
            }
        }
        return object;
    }