ASP.NET 文件下载

来源：互联网发布：struts2 demo源码下载编辑：程序博客网时间：2024/04/30 02:09

<%@ 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";
       HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(file.Name, System.Text.Encoding.UTF8));
       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();
    }
}

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/wwfgu00ing/archive/2010/07/30/5773842.aspx