通过http输出流的方式从将html写入到Excel

   private void HtmlResponseToExecl()
        {
            //将数据(html)导入到Excel中
            Response.Charset = "gb2312";
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
            string filename = "../Execl/test";
            //解决乱码问题
            filename = HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8);
            Response.AddHeader("Content-Disposition", "attachment;filename=" + filename + ".xls");
            Response.ContentType = "application/vnd.ms-excel";
            Response.Write("<html><head><meta http-equiv=Content-Type content=\"text/html; charset=GB2312\">");
            Response.Write("<body>");
            Response.Write("<table  border=1px>");
          
            //导入Excel表头信息

            Response.Write("<tr style='background-color: gray;'><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr>");
            Response.Write("<tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr>");
            Response.Write("<tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr>");
            Response.Write("<tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr>");
            Response.Write("<tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr>");
            Response.Write("</table>");
            Response.Write("</body></html>");
            Response.Flush();
            Response.End();      
        }