对asp.net原理性的东西掌握比较好的前辈进来下

Question

使用过Flash上传的同学都知道,Flash有一个Bug  
在非IE浏览器下的时候 Session会“丢失”  其实也不算丢失 这里不做详解现在的问题是.
前不久在网上找到了相关解决方案，自己也测试写了个例子。可以成功。
需要添加Global.asax全局应用程序.然而问题来了 在项目中添加Global.asax  这个时候在这个站点下的每个页面应该都会执行
protected void Application_BeginRequest(object sender, EventArgs e)
{
}
这个事件  
但是现在的问题是，我从这个站点打开了一个新的连接地址
这个时候调试一下 在打开新的地址中 是不会走刚才那个事件的新的页面正是上传页面 session丢失了 这如何处理？
Global文件有没有办法共享？ASP.NETFlash应用浏览器测试

Answer 1

HttpContext.Current.Session["SITEINFO"]这样会丢失?

Answer 2

\实际上不是丢失了 是Flash上传的时候会生成新的Session 这个时候没办法通过验证的。
而Flash的处理机制又不能将Cookie添加到HttpRequst的标头中  这是Flash的BUG 没有办法
解决办法网上有。目前我遇到的  简而言之就是  我打开新连接地址的页面 相当于又开启了一次回话状态这个时候不知道该怎么去比较两个Seesion值因为解决方案中需要在Gloab文件中处理

Answer 3

应该和Global.asax无关吧
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.SessionState;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using Galsun.Common;
using Galsun.Gzln.Content;
using Galsun.Gzln.Mode;namespace Galsun.Gzln.Web.UI
{
    public class Upload : IHttpHandler, IRequiresSessionState
    {
        gl_MagazineContent _magazine = new gl_MagazineContent();
        public Upload()
        {        }        #region IHttpHandler Members        public bool IsReusable
        {
            get { return true; }
        }        public void ProcessRequest(HttpContext context)
        {
            // Example of using a passed in value in the query string to set a categoryId
            // Now you can do anything you need to witht the file.
            //int categoryId = 0;
            //if (!string.IsNullOrEmpty(context.Request.QueryString["CategoryID"]))
            //{
            //    int.TryParse(context.Request.QueryString["CategoryID"],out categoryId);
            //}
            //if (categoryId > 0)
            //{
            //}            //string temp = context.Session["temp"].ToString();
            if (Galsun.Gzln.Global.Current.UserID == "")
            {
                HttpContext.Current.Response.Write("用户未登陆!");
                return;
            }
            //string EncryptString = context.Request.QueryString["User"];
            //FormsAuthenticationTicket UserTicket = FormsAuthentication.Decrypt(EncryptString);            if (context.Request.Files.Count > 0)
            {
                // get the applications path
                int docid = DNTRequest.GetInt("docid", 0);
                
                if (docid <= 0)
                {
                    docid = Utils.StrToInt(HttpContext.Current.Session["docid"], -9999);
                }                string mypath = "/UploadFile/magazine/" + DateTime.Now.ToString("yyyyMM");
                string uploadPath = context.Server.MapPath(context.Request.ApplicationPath + mypath);
                if (!Directory.Exists(uploadPath))
                {
                    Directory.CreateDirectory(uploadPath);
                }
                // loop through all the uploaded files
                for (int j = 0; j < context.Request.Files.Count; j++)
                {
                    // get the current file
                    HttpPostedFile uploadFile = context.Request.Files[j];
                    // if there was a file uploded
                    if (uploadFile.ContentLength > 0)
                    {
                        // save the file to the upload directory                        //use this if testing from a classic style upload, ie.                         // <form action="Upload.axd" method="post" enctype="multipart/form-data">
                        //    <input type="file" name="fileUpload" />
                        //    <input type="submit" value="Upload" />
                        //</form>                        // this is because flash sends just the filename, where the above 
                        //will send the file path, ie. c:\My Pictures\test1.jpg
                        //you can use Test.thm to test this page.
                        //string filename = uploadFile.FileName.Substring(uploadFile.FileName.LastIndexOf("\\"));
                        //uploadFile.SaveAs(string.Format("{0}{1}{2}", tempFile, "Upload\\", filename));                        // use this if using flash to upload
                        string fileName = DateTime.Now.ToString("yyyyMMddHHmmss") + Galsun.Common.Rand.Number(4) + System.IO.Path.GetExtension(uploadFile.FileName);
                        uploadFile.SaveAs(Path.Combine(uploadPath, fileName));
                        gl_magazine_pageinfo info = new gl_magazine_pageinfo();
                        info.mid = docid;
                        info.PageNum = j + 1;
                        info.title = uploadFile.FileName;
                        info.url = mypath + "/" + fileName;
                        //info.T_05007 = FormatSize(uploadFile.ContentLength);
                        _magazine.AddPage(info);
                        // HttpPostedFile has an InputStream also.  You can pass this to 
                        // a function, or business logic. You can save it a database:                        //byte[] fileData = new byte[uploadFile.ContentLength];
                        //uploadFile.InputStream.Write(fileData, 0, fileData.Length);
                        // save byte array into database.                        // something I do is extract files from a zip file by passing
                        // the inputStream to a function that uses SharpZipLib found here:
                        // http://www.icsharpcode.net/OpenSource/SharpZipLib/
                        // and then save the files to disk.                    
                    }
                }
            }
            // Used as a fix for a bug in mac flash player that makes the 
            // onComplete event not fire
            HttpContext.Current.Response.Write(" ");
        }
        private string FormatSize(int size)
        {
if(size < 1024)
        return ((size*100)/100).ToString("N0") + " bytes";
    if(size < 1048576)
        return (((size / 1024)*100)/100).ToString("N0") + "KB";
    if(size < 1073741824)
       return (((size / 1048576)*100)/100).ToString("N0") + "MB";
     return (((size / 1073741824)*100)/100).ToString("N0") + "GB";
        }        #endregion
    }
}//======================================================
//==     (c)2008 aspxcms inc by NeTCMS v1.0              ==
//==          Forum:bbs.aspxcms.com                   ==
//==         Website:www.aspxcms.com                  ==
//======================================================
using System;
using System.Web;
using System.Text;
using Galsun.Gzln.Mode;
using Galsun.Gzln.Content;namespace Galsun.Gzln.Global
{
    public class Current
    {
        /// <summary>
        /// 帐号
        /// </summary>
        public static string UserID
        {
            get
            {
                return GetInfo().userid;
            }
        }
        /// <summary>
        /// 姓名
        /// </summary>
        public static string UserName
        {
            get
            {
                return GetInfo().userName;
            }
        }
        /// <summary>
        /// 用户可操作菜单
        /// </summary>
        public static string UserPower
        {
            get
            {
                return GetInfo().power_list;
            }
        }
        /// <summary>
        /// 返回用户组信息
        /// </summary>
        public static gl_usergroupinfo UserGroup
        {
            get
            {
                gl_UserGroupContent ug = new gl_UserGroupContent();
                return ug.getInfo(GetInfo().group_code);
            }
        }
        /// <summary>
        /// 管理范围
        /// </summary>
        public static int UserRange
        {
            get
            {
                return GetInfo().Range;
            }
        }
        /// <summary>
        /// 获取客户端IP
        /// </summary>
        public static string ClientIP
        {
            get
            {
                return HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
            }
        }
        public static bool IsTimeout()
        {
            try
            {
                gl_userinfo info = new gl_userinfo();
                return false;
            }
            catch
            {
                return true;
            }
        }
        public static void Set(gl_userinfo info)
        {
            HttpContext.Current.Session["SITEINFO"] = info;
            HttpContext.Current.Session.Timeout = 90;
        }
        private static gl_userinfo GetInfo()
        {
            if (HttpContext.Current.Session["SITEINFO"] == null)
                throw new Exception("您没有登录系统或会话已过期,请重新登录");
                //return (GlobalUserInfo)HttpContext.Current.Session["SITEINFO"];
            else
                return (gl_userinfo)HttpContext.Current.Session["SITEINFO"];        }
    }
}

Answer 4

    <httpHandlers>
      <add verb="POST,GET" path="Upload.axd" type="Galsun.Gzln.Web.UI.Upload"/>
    </httpHandlers>
        <FlashUpload:FlashUpload ID="flashUpload" runat="server" 
            UploadPage="Upload.axd" OnUploadComplete="UploadComplete()" 
            FileTypeDescription="所有文件(*.*)" FileTypes="*.*" 
            UploadFileSizeLimit="2000000000" TotalUploadSizeLimit="20000000000" />

Answer 5

还是谢谢前辈  我找到了  
查了下  httpmodule 里面可以代替 呵呵 谢谢