上传Excel进数据库，实例。

  1using System;
  2using System.Data;
  3using System.Configuration;
  4using System.Web;
  5using System.Web.Security;
  6using System.Web.UI;
  7using System.Web.UI.WebControls;
  8using System.Web.UI.WebControls.WebParts;
  9using System.Web.UI.HtmlControls;
 10using System.Data.OleDb;
 11using System.Data.SqlClient;
 12
 13public partial class InserPosAll : System.Web.UI.Page
 14{
 15    public DataSet ExecleDs(string filenameurl, string table)
 16    {
 17        string strConn = "Provider=Microsoft.Jet.OleDb.4.0;" + "data source=" + filenameurl + ";Extended Properties='Excel 8.0; HDR=YES; IMEX=1'";
 18        OleDbConnection conn = new OleDbConnection(strConn);
 19        OleDbDataAdapter odda = new OleDbDataAdapter("select * from [sheet1$]", conn);
 20        DataSet ds = new DataSet();
 21        odda.Fill(ds, table);
 22        return ds;
 23    }
 24
 25    protected void Page_Load(object sender, EventArgs e)
 26    {
 27
 28    }
 29    protected void Button1_Click(object sender, EventArgs e)
 30    {
 31        if (FileUpload1.HasFile == false)
 32        {
 33            Response.Write("<script>alert('请您选择Excel文件')</script> ");
 34            return;//当无文件时,返回       
 35        }
 36        //string IsXls = System.IO.Path.GetExtension(FileUpload1.FileName).ToString().ToLower();
 37        //if (IsXls != ".xls")
 38        //{
 39        //    Response.Write("<script>alert('只可以选择Excel文件')</script>");
 40        //    return;//当选择的不是Excel文件时,返回       
 41        //}
 42        String serverPath = Server.MapPath("~/") + FileUpload1.FileName;
 43        FileUpload1.SaveAs(serverPath);
 44        string error = null;
 45
 46        SqlConnection conn = new SqlConnection("data source=10.47.0.7;database=pos_inquire;user=sa;password=19730524");
 47        conn.Open();
 48        string Sqlstrl = " Truncate table pos_all";
 49        SqlCommand comd = new SqlCommand(Sqlstrl, conn);
 50        comd.ExecuteNonQuery();
 51
 52        //string strpath = FileUpload1.PostedFile.FileName.ToString();   //获取Execle文件路径       
 53        string filename = FileUpload1.FileName;                       //获取Execle文件名         
 54        //DataSet ds = conn.ExecleDs(strpath,filename);
 55        DataSet ds = ExecleDs(serverPath, filename);
 56        DataRow[] dr = ds.Tables[0].Select();                        //定义一个DataRow数组       
 57        int rowsnum = ds.Tables[0].Rows.Count;
 58        if (rowsnum == 0)
 59        {
 60            Response.Write("<script>alert('Excel表为空表,无数据!')</script>");   //当Excel表为空时,对用户进行提示      
 61        }
 62        else
 63        {
 64
 65            string 商户编号;
 66            string 装机日期;
 67            string 手续费率;
 68            string 商户名;
 69            string 主办行;
 70            string 经办人;
 71            string 装机方;
 72            string 开户行;
 73            string 有效性;
 74            string 装机台数;
 75            string POS类型;
 76
 77            for (int i = 0; i < dr.Length; i++)
 78            {
 79                商户编号 = dr[i][0].ToString();              //string dh = dr[i]["YongHuMiMa"].ToString();        
 80                装机日期 = dr[i][1].ToString();
 81                手续费率 = dr[i][2].ToString();
 82                商户名 = dr[i][3].ToString();
 83                主办行 = dr[i][4].ToString();
 84                经办人 = dr[i][5].ToString();
 85                装机方 = dr[i][6].ToString();
 86                开户行 = dr[i][7].ToString();
 87                有效性 = dr[i][8].ToString();
 88                装机台数 = dr[i][9].ToString();
 89                POS类型 = dr[i][10].ToString();
 90
 91                string insertstr = "insert into pos_all(商户编号,装机日期,手续费率,商户名,主办行,经办人,装机方,开户行,有效性,装机台数,POS类型) values('" + 商户编号 + "','" + 装机日期 + "','" + 手续费率 + "','" + 商户名 + "','" + 主办行 + "','" + 经办人 + "','" + 装机方 + "','" + 开户行 + "','" + 有效性 + "','" + 装机台数 + "','" + POS类型 + "')";
 92                SqlCommand cmd = new SqlCommand(insertstr, conn);
 93                try
 94                {
 95                    cmd.ExecuteNonQuery();
 96                }
 97                catch (MembershipCreateUserException ex) //捕捉异常                    
 98                {
 99                    Response.Write("<script>alert('创建用户:" + ex.Message + "')</script>");
100                }
101            }
102            Response.Write("<script>alert('Excle表导入成功!')</script>");
103            System.IO.File.Delete(serverPath);
104            Response.Redirect("List_Posall.aspx");
105            
106        }
107        conn.Close();
108    }
109    
110}