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     1     public void downloadfile(string s_fileName)
     2     {
     3         HttpContext.Current.Response.ContentType = "application/ms-download";
     4         string s_path = HttpContext.Current.Server.MapPath("~/") + s_fileName;
     5         System.IO.FileInfo file = new System.IO.FileInfo(s_path);
     6         HttpContext.Current.Response.Clear();
     7         HttpContext.Current.Response.AddHeader("Content-Type", "application/octet-stream");
     8         HttpContext.Current.Response.Charset = "utf-8";
     9 
    10         string filename = file.Name;
    11         string userAgent = HttpContext.Current.Request.ServerVariables["http_user_agent"].ToLower();
    12         //处理firefox保存时文件名乱码的问题  
    13         if (userAgent.IndexOf("firefox") == -1)
    14             filename = HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8);
    15 
    16         HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + filename);
    17         HttpContext.Current.Response.AddHeader("Content-Length", file.Length.ToString());
    18         HttpContext.Current.Response.WriteFile(file.FullName);
    19         HttpContext.Current.Response.Flush();
    20         HttpContext.Current.Response.Clear();
    21         HttpContext.Current.Response.End();
    22     }
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  • 原文地址:https://www.cnblogs.com/imluzhi/p/5038013.html
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