上传Excel表格转List处理

工作中遇到批量导入功能，需要把上传的Excel表格中的数据取出存到数据库中，总结一下：
需要使用到jxl库：

直接上代码：

public static ArrayList<Map> importToExcel(File file)
    {
    ArrayList<Map> arr = new ArrayList<Map>();
        String[] title;
        Workbook wwb = null;
        try
        {
            wwb = Workbook.getWorkbook(file);
            int sheetNumber = wwb.getNumberOfSheets();
            System.out.println("sheetNumber:" + sheetNumber);
            for (int m = 0; m < sheetNumber; m++)
            {
                Sheet ws = wwb.getSheet(m);
                int rowCount = ws.getRows();
                int columeCount = ws.getColumns();
                System.out.println("rowCount:" + rowCount);
                System.out.println("columeCount:" + columeCount);
                if (rowCount > 1 && columeCount > 0)
                {
                    title = new String[columeCount];
                    for (int k = 0; k < columeCount; k++)
                    {
                        title[k] = ws.getCell(k, 0).getContents().trim();
                    }
                    for (int i = 1; i < rowCount; i++)
                    {
                        Map dataMap = new HashMap();
                        for (int j = 0; j < columeCount; j++)
                        {
                            if (ws.getCell(j, i).getType() == CellType.DATE)
                            {
                                Date date = ((DateCell) ws.getCell(j, i)).getDate();
                                long offset = tz.getOffset(date.getTime());
                                date.setTime(date.getTime() - offset);
                                dataMap.put(title[j], date);
                            }
                            else
                            {
                                dataMap.put(title[j], ws.getCell(j, i).getContents());
                            }
                        }
                        arr.add(dataMap);
                    }
                }
            }
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        finally
        {
            if (wwb != null)
            {
                wwb.close();
                wwb = null;
            }
        }
        return arr;
    }