public <T> List<T> readExcel(File file, Class<T> c) throws Exception {
        //獲取檔名字
        String fileName = file.getName();
        //獲取檔案型別
        String fileType = fileName.substring(fileName.lastIndexOf(".") + 1);
        System.out.println(" **** fileType:" + fileType);
        //獲取輸入流
        InputStream stream = new FileInputStream(file);
        //獲取工作薄
        Workbook xssfWorkbook = null;
        if (fileType.equals("xls")) {
            xssfWorkbook = new HSSFWorkbook(stream);
        } else if (fileType.equals("xlsx")) {
            xssfWorkbook = new XSSFWorkbook(stream);
        } else {
            System.out.println("您輸入的excel格式不正確");
        }
        List<T> list = new ArrayList<T>();
        // Read the Sheet
        Sheet Sheet = xssfWorkbook.getSheetAt(0);
        // Read the Row 從0開始
        for (int rowNum = 0; rowNum <= Sheet.getLastRowNum(); rowNum++) {
            Row Row = Sheet.getRow(rowNum);
            if (Row != null) {
                //判斷這行記錄是否存在
                if (Row.getLastCellNum() < 1 || "".equals(getValue(Row.getCell(1)))) {
                    continue;
                }
                //獲取每一行
                //反射獲取例項
                T t = c.newInstance();
                //獲取私有變數
                Field[] fields = c.getDeclaredFields();
                //迴圈賦值
                for(int i=0;i<fields.length-1;i++){
                    fields[i].setAccessible(true);
                    fields[i].set(t, getValue(Row.getCell(i)));
                }
                list.add(t);
            }
        }
        return list;
    }

    private String getValue(Cell cell){
        int type = CellFormat.ultimateType(cell);
        if(type == Cell.CELL_TYPE_BOOLEAN)
        {
            return String.valueOf(cell.getBooleanCellValue());
        }
        else if(type == Cell.CELL_TYPE_NUMERIC)
        {
            return String.valueOf(cell.getNumericCellValue());
        }
        else if(type == Cell.CELL_TYPE_BLANK)
        {
            return "";
        }
        else
        {
            return cell.getStringCellValue().trim();
        }
    }