AX2009使用NPOI导入数据-方法一

Excel2003-97

static void NPOI_ImportExcel2003(Args _args)
{
    System.IO.FileStream                file=new System.IO.FileStream("D:\test.xls", System.IO.FileMode::Open,System.IO.FileAccess::Read);
    NPOI.HSSF.UserModel.HSSFWorkbook    workBook= new NPOI.HSSF.UserModel.HSSFWorkbook(file);
    NPOI.SS.UserModel.ISheet            sheet=workBook.GetSheetAt(0);
    System.Collections.IEnumerator      rows = sheet.GetRowEnumerator();
    NPOI.SS.UserModel.IRow              row;
    NPOI.SS.UserModel.ICell             cell;
    int                                 i,t;
    ;
    t=timenow();
    while (rows.MoveNext())
    {
        row = rows.get_Current();
        for(i=0;i<=175;i++)
        {
            cell = row.GetCell(i);
            if(cell)
              print cell.get_StringCellValue();
        }
    }
    file.Close();
    info(int2str(timenow()-t));
}

Excel2007

跟2003-97版本差不多，只是workBook引用的class不一样（红色部分）

static void NPOI_ImportExcel2007(Args _args)
{
    System.IO.FileStream                file=new System.IO.FileStream("D:\test.xlsx", System.IO.FileMode::Open,System.IO.FileAccess::Read);
    NPOI.XSSF.UserModel.XSSFWorkbook    workBook= new NPOI.XSSF.UserModel.XSSFWorkbook(file);
    NPOI.SS.UserModel.ISheet            sheet=workBook.GetSheetAt(0);
    System.Collections.IEnumerator      rows = sheet.GetRowEnumerator();
    NPOI.SS.UserModel.IRow              row;
    NPOI.SS.UserModel.ICell             cell;
    int                                 i,t;
    ;
    t=timenow();
    while (rows.MoveNext())
    {
        row = rows.get_Current();
        for(i=0;i<=175;i++)
        {
            cell = row.GetCell(i);
            if(cell)
              print cell.get_StringCellValue();
        }
    }
    file.Close();
    info(int2str(timenow()-t));
}

两个版本导入读取Excel耗时几乎相同，用的是之前导出的数据，全部读取并print耗时3秒，如果不print，耗时1秒