导出比较大excel出现"与服务器的连接被重置问题"

[下载一定要设昵称]

导出按钮方法,ISS已经把连接超时设大了,executionTimeout也设大了 但没效果.请问该怎么解决
excel大概会有100M 下载速度也不理想 50k左右 所以很慢

page.Response.Clear();
page.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");//采用中文简体的编码方式，确保不出现乱码
page.Response.AppendHeader("content-disposition", "attachment;filename=\"" + System.Web.HttpUtility.UrlEncode(Filename + DateTime.Now.ToShortDateString(), System.Text.Encoding.UTF8) + ".xls\"");
System.IO.StringWriter sw = new System.IO.StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
gridview.AllowPaging = false;
BindData();

gridview.RenderControl(htw);

page.Response.Write(sw.ToString());
page.Response.End();

gridview.AllowPaging = true;
BindData();

[haa17]

 /// <summary>
    /// 导出Execl（带表头）
    /// </summary>
    /// <param name="dt"></param>
    /// <param name="FileName"></param>
    /// <param name="response"></param>
    public void CreateExcel(DataTable dt, string FileName, HttpResponse response)
    {
        HttpResponse resp;
        resp = response;
        FileName = System.Web.HttpUtility.UrlEncode(System.Text.Encoding.UTF8.GetBytes(FileName));
        resp.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
        resp.AppendHeader("Content-Disposition", "attachment;filename=" + FileName + ".xls");
        string colHeaders = "", ls_item = "";
        //定义表对象与行对象，同时用DataSet对其值进行初始化
        DataRow[] myRow = dt.Select();//可以类似dt.Select("id>10")之形式达到数据筛选目的
        int i = 0;
        int cl = dt.Columns.Count;
        //取得数据表各列标题，各标题之间以t分割，最后一个列标题后加回车符 
        for (i = 0; i < cl; i++)
        {
            if (i == (cl - 1))//最后一列，加n
            {
                colHeaders += dt.Columns[i].Caption.ToString().Replace("\n", " ").Replace("\"", "\"\"") + "\n";
            }
            else
            {
                colHeaders += dt.Columns[i].Caption.ToString().Replace("\n", " ").Replace("\"", "\"\"") + "\t";
            }
        }
        resp.Write(colHeaders.Replace("\r", " "));
        //向HTTP输出流中写入取得的数据信息
        //逐行处理数据   
        foreach (DataRow row in myRow)
        {
            //当前行数据写入HTTP输出流，并且置空ls_item以便下行数据     
            for (i = 0; i < cl; i++)
            {
                if (i == (cl - 1))//最后一列，加n
                {
                    ls_item += row[i].ToString().Replace("\n", " ").Replace("\"", "\"\"") + "\n";
                }
                else
                {
                    ls_item += row[i].ToString().Replace("\n", " ").Replace("\"", "\"\"") + "\t";
                }
            }
            resp.Write(ls_item.Replace("\r", " "));
            ls_item = "";
        }
        resp.End();
    }

试试这个，之前用的，没出现什么问题。

[haa17]

调用

CreateExcel(DataTable,"21.xlsx"dataPage.Response);

[laokaizzz]

提高下载速度~