从excel中导入数据到table中,并保存到数据库

protected void btnUp_Click(object sender, ImageClickEventArgs e)
    {
        double djid = 0;
        double.TryParse(Request.QueryString["djid"], out djid);
        HttpFileCollection files = Request.Files;//客服端上载文件的集合
        var path = Server.MapPath(ConfigManager.GetWebConfigurationManager("ExceFilePath"));//ExcelFilePath 为文件存放位置在webconfig中进行配置
        if (!Directory.Exists(path))
        {
            Directory.CreateDirectory(path);
        }
        int ifile;//单个文件，变量
        for (ifile = 0; ifile < files.Count; ifile++)//循环取出每一张图片进行操作:大小？扩展名？
        {
            HttpPostedFile postedfile = files[ifile];//posted代表一个上载图片
            if (postedfile.InputStream.Length > 0)
            {
                int index = postedfile.FileName.LastIndexOf('.');
                var ext = postedfile.FileName.Substring(index + 1);
                if (CommonHelper.IsEquals(ext, new string[] { "xls", "xlsx" }))
                {
                    path = path.Trim('/').Trim('\') + "/" + Guid.NewGuid().ToString("N") + "." + ext;
                    postedfile.SaveAs(path);
                    var dt = GetTableData(path);
                    SaveData(djid, dt);//用于保存数据
                    //CommonHelper.DelFile(path);
                }
            }

        }
    }
    private DataTable GetTableData(string sExcelFile)
    {
        DataSet ds = new DataSet();
        try
        {
            string stro = (sExcelFile.Contains(".xlsx") ? "Provider=Microsoft.ACE.OLEDB.12.0;" : "Provider=Microsoft.Jet.OLEDB.4.0;") + "Data source=" + sExcelFile + ";" + "Extended Properties=Excel 8.0";
            //Excel的连接
            OleDbConnection objConn = new OleDbConnection(stro);
            objConn.Open();
            DataTable schemaTable = objConn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, null);
            string tableName = schemaTable.Rows[0][2].ToString().Trim();//获取 Excel 的表名，默认值是sheet1
            string strSql = "select * from [" + tableName + "]";
            OleDbCommand objCmd = new OleDbCommand(strSql, objConn);
            OleDbDataAdapter myData = new OleDbDataAdapter(strSql, objConn);
            myData.Fill(ds, tableName);//填充数据
        }
        catch { }
        return ds != null && ds.Tables.Count > 0 ? ds.Tables[0] : null;
    }

private void SaveData(double djid, DataTable dt)
    {
        bool flag = false;
        if (dt == null || djid < 1) return;
        try
        {
            IList<BCgqdbBase> GoodsList = new List<BCgqdbBase>(); 
            foreach (DataRow dr in dt.Rows)
            {
                if (dr["材料名称"] == DBNull.Value)
                    continue; 
                var cBase = new BCgqdbBase(); 
                cBase.CPMC = dr["物资名称"].ToString();
                cBase.CSJPZ = dr["规格型号"].ToString();
                cBase.DW = dr["单位"].ToString();
                cBase.SL = Convert.ToDouble(dr["数量"] == null || dr["数量"].ToString() == "" ? "0" : dr["数量"]);
                cBase.YSXJ = Convert.ToDouble(dr["不含税单价"] == null || dr["不含税单价"].ToString() == "" ? "0" : dr["不含税单价"]);
                cBase.ZCS = dr["品牌"].ToString(); 
                cBase.BZ = dr["备注"].ToString();
                cBase.CODE = dr["编码"].ToString();
                cBase.SLZ = Convert.ToDouble(dr["税率"] == null || dr["税率"].ToString() == "" ? "0" : dr["税率"]); 
                GoodsList.Add(cBase);
            }
             //数据保存到数据库
        }
        catch { }
        JScript.ExecutionJS(this,"top.window.location=top.window.location.href;");
    }