引言
使用Npoi导出Excel 服务器可以不装任何office组件，昨天在做一个导出时用到Npoi导出Excel，而且所导Excel也符合规范，打开时不会有任何文件损坏之类的提示。但是在做导入时还是使用OleDb的方式，这种方式的导入在服务器端似乎还是需要装office组件的，有没有不需要装组件并且能照常导入的呢？
Npoi导出/下载Excel
public void NpoiExcel(DataTable dt, string title)
{
NPOI.HSSF.UserModel.HSSFWorkbook book = new NPOI.HSSF.UserModel.HSSFWorkbook();
NPOI.SS.UserModel.ISheet sheet = book.CreateSheet("Sheet1"); NPOI.SS.UserModel.IRow headerrow = sheet.CreateRow();
ICellStyle style = book.CreateCellStyle();
style.Alignment = HorizontalAlignment.Center;
style.VerticalAlignment = VerticalAlignment.Center; for (int i = ; i < dt.Columns.Count; i++)
{
ICell cell = headerrow.CreateCell(i);
cell.CellStyle = style;
cell.SetCellValue(dt.Columns[i].ColumnName); } MemoryStream ms = new MemoryStream();
book.Write(ms);
Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.xls", HttpUtility.UrlEncode(title + "_" + DateTime.Now.ToString("yyyy-MM-dd"), System.Text.Encoding.UTF8)));
Response.BinaryWrite(ms.ToArray());
Response.End();
book = null;
ms.Close();
ms.Dispose();
}
Asp.Net导入
导入仍然是用OleDb这种方式，有没有其他方式搞定呢？
/// <summary>
/// 连接Excel 读取Excel数据 并返回DataSet数据集合
/// </summary>
/// <param name="filepath">Excel服务器路径</param>
/// <param name="tableName">Excel表名称</param>
/// <returns></returns>
public static System.Data.DataSet ExcelSqlConnection(string filepath, string tableName)
{ string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties='Excel 8.0;HDR=YES;IMEX=1'";
OleDbConnection ExcelConn = new OleDbConnection(strCon);
try
{
string strCom = string.Format("SELECT * FROM [Sheet1$]");
ExcelConn.Open();
OleDbDataAdapter myCommand = new OleDbDataAdapter(strCom, ExcelConn);
DataSet ds = new DataSet();
myCommand.Fill(ds, "[" + tableName + "$]");
ExcelConn.Close();
return ds;
}
catch
{
ExcelConn.Close();
return null;
}
}