基于ASP.NET的网盘系统在线文件管理模块开发

using System;
using System.Collections.Generic;
using System.Web;

public static class DownloadFile
{
    public static void ResponseFile（string path HttpContext contextbool hasfileName）
    {
        context = HttpContext.Current;

        System.IO.Stream iStream = null;
        byte[] buffer = new Byte[10000];
        int length;
        long dataToRead;
        string filename;
        if （!hasfileName）
        {
            filename = System.IO.Path.GetFileName（path）;
        }
        else
        {
            filename = “down_“ + DateTime.Now.ToString（“yyyyMMddHHmmss“）+“.zip“;
        }

        try
        {
            iStream = new System.IO.FileStream（path System.IO.FileMode.Open System.IO.FileAccess.Read System.IO.FileShare.Read）;
            dataToRead = iStream.Length;
            context.Response.ContentType = “application/octet-stream“;
            context.Response.AddHeader（“Content-Disposition“ “attachment; filename=“ + HttpUtility.UrlEncode（filename System.Text.Encoding.UTF8））;

            while （dataToRead > 0）
            {
                if （context.Response.IsClientConnected）
                {
                    length = iStream.Read（buffer 0 10000）;
                    context.Response.OutputStream.Write（buffer 0 length）;
                    context.Response.Flush（）;

                    buffer = new Byte[10000];
                    dataToRead = dataToRead - length;
                }
                else
                {
                    dataToRead = -1;
                }
            }
        }
        catch （Exception ex）
        {
            context.Response.Write（ex.Message）;
        }
        finally
        {
            if （iStream != null）
            {
                iStream.Close（）;
            }
        }
    }


}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件     526336  2012-08-17 19:03  在线文件管理模块.ppt

     文件       1281  2012-08-14 20:01  素材#download.zip

     文件       1091  2012-08-14 20:55  素材Ajax.js

     文件       1386  2008-12-25 08:58  素材cssWebExplorer.css

     文件       9315  2012-08-14 20:56  素材Dialog.js

     文件     229376  2008-07-14 15:08  素材dllActiproSoftware.CodeHighlighter.Net20.dll

     文件     229376  2008-07-14 15:02  素材dllActiproSoftware.Shared.Net20.dll

     文件      17408  2008-07-14 15:08  素材dllCodeHighlighterTest.dll

     文件      45056  2008-07-26 14:53  素材dllFredCK.FCKeditorV2.dll

     文件     143360  2008-09-28 18:36  素材dllICSharpCode.SharpZipLib.dll

     文件        236  2008-08-05 11:40  素材fckeditoreditorcssehaviorsdisablehandles.htc

     文件        822  2008-08-05 11:40  素材fckeditoreditorcssehaviorsshowtableborders.htc

     文件       2648  2008-07-15 09:25  素材fckeditoreditorcssfck_editorarea.css

     文件       4145  2008-03-25 10:46  素材fckeditoreditorcssfck_internal.css

     文件       1696  2008-02-24 12:00  素材fckeditoreditorcssfck_showtableborders_gecko.css

     文件        288  2008-08-05 11:40  素材fckeditoreditorcssimageslock_address.png

     文件        293  2008-08-05 11:40  素材fckeditoreditorcssimageslock_blockquote.png

     文件        229  2008-08-05 11:40  素材fckeditoreditorcssimageslock_div.png

     文件        218  2008-08-05 11:40  素材fckeditoreditorcssimageslock_h1.png

     文件        220  2008-08-05 11:40  素材fckeditoreditorcssimageslock_h2.png

     文件        219  2008-08-05 11:40  素材fckeditoreditorcssimageslock_h3.png

     文件        229  2008-08-05 11:40  素材fckeditoreditorcssimageslock_h4.png

     文件        236  2008-08-05 11:40  素材fckeditoreditorcssimageslock_h5.png

     文件        216  2008-08-05 11:40  素材fckeditoreditorcssimageslock_h6.png

     文件        205  2008-08-05 11:40  素材fckeditoreditorcssimageslock_p.png

     文件        223  2008-08-05 11:40  素材fckeditoreditorcssimageslock_pre.png

     文件        184  2008-08-05 11:40  素材fckeditoreditorcssimagesfck_anchor.gif

     文件        599  2008-08-05 11:40  素材fckeditoreditorcssimagesfck_flashlogo.gif

     文件        105  2008-08-05 11:40  素材fckeditoreditorcssimagesfck_hiddenfield.gif

     文件         54  2008-08-05 11:40  素材fckeditoreditorcssimagesfck_pagebreak.gif

............此处省略767个文件信息