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<%@ WebHandler Language="C#" Class="download" %>using System;using System.Web;public class download : IHttpHandler { public void ProcessRequest (HttpContext context) { string url = HttpContext.Current.Server.UrlDecode(context.Request.QueryString["url"]); downloadfile(url); } public bool IsReusable { get { return false; } } public void downloadfile(string s_fileName) { HttpContext.Current.Response.ContentType = "application/ms-download"; string s_path = HttpContext.Current.Server.MapPath("~/") + s_fileName; System.IO.FileInfo file = new System.IO.FileInfo(s_path); HttpContext.Current.Response.Clear(); HttpContext.Current.Response.AddHeader("Content-Type", "application/octet-stream"); HttpContext.Current.Response.Charset = "utf-8"; string filename = file.Name; string userAgent = HttpContext.Current.Request.ServerVariables["http_user_agent"].ToLower(); //处理firefox保存时文件名乱码的问题 if (userAgent.IndexOf("firefox") == -1) filename = HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8); HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + filename); HttpContext.Current.Response.AddHeader("Content-Length", file.Length.ToString()); HttpContext.Current.Response.WriteFile(file.FullName); HttpContext.Current.Response.Flush(); HttpContext.Current.Response.Clear(); HttpContext.Current.Response.End(); }}
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