C# 使用asp.net将数据从Excel导入数据库

我想使用asp.net将数据从Excel导入数据库。我用VS-2012来做这个

这是我的点击事件代码。但当我上传文件并点击按钮时，页面显示PageNotFound错误

    protected void Button1_Click(object sender, EventArgs e)
    {
        if (FileUpload1.HasFile)
        {
            string path = string.Concat((Server.MapPath("~/temp/" + FileUpload1.FileName)));
            FileUpload1.PostedFile.SaveAs(path);
            OleDbConnection OleDbcon = new OleDbConnection("Provider=Microsoft.Ace.OLEDB.12.0;Data Source=" + path + ";Extended Properties=Excel 12.0;");
            OleDbCommand cmd = new OleDbCommand("select * from [Sheet$]", OleDbcon);
            OleDbDataAdapter objAdapter1 = new OleDbDataAdapter(cmd);

            OleDbcon.Open();
            DbDataReader dr = cmd.ExecuteReader();
            string con_str = "Gems1ConnectionString1";

            SqlBulkCopy bulkInsert = new SqlBulkCopy(con_str);
            bulkInsert.DestinationTableName = "tbl_energy_report";
            bulkInsert.WriteToServer(dr);
            Array.ForEach(Directory.GetFiles((Server.MapPath("~/temp/"))), File.Delete);
            Label1.ForeColor = Color.Green;
            Label1.Text = "Succefully Imported the File";
        }
        else
        {
            Label1.ForeColor = Color.Red;
            Label1.Text = "Please Select A File";
        }
    }

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请提供帮助。

在第一行，尝试手动分配完整路径，而不使用文件上载和本地路径，如：

string path = @"C:\fileName.xls";

看看它是否有效