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JQuery文件上传插件uploadify在MVC中Session丢失的解决方案

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<script type="text/javascript">
 
    var auth = "@(Request.Cookies[FormsAuthentication.FormsCookieName]==null ? string.Empty : Request.Cookies[FormsAuthentication.FormsCookieName].Value)";
 
    var ASPSESSID = "@Session.SessionID";
 
    $(function () {
 
        $("#file_upload").uploadify({
 
            swf: '/Scripts/uploadify/uploadify.swf',
 
            uploader: '/Project/File/FileUpload',
 
            formData: { ASPSESSID: ASPSESSID, AUTHID: auth },
 
            auto: true,
 
            …
 
     });
 
注意：上面灰底代码很重要！
 
将下面代码放入Global.asax
 
protected void Application_BeginRequest(object sender, EventArgs e)
 
        {
 
            try
 
            {
 
                string session_param_name = "ASPSESSID";
 
                string session_cookie_name = "ASP.NET_SessionId";
 
  
 
                if (HttpContext.Current.Request.Form[session_param_name] != null)
 
                {
 
                    UpdateCookie(session_cookie_name, HttpContext.Current.Request.Form[session_param_name]);
 
                }
 
                else if (HttpContext.Current.Request.QueryString[session_param_name] != null)
 
                {
 
                    UpdateCookie(session_cookie_name, HttpContext.Current.Request.QueryString[session_param_name]);
 
                }
 
            }
 
            catch
 
            {
 
            }
 
  
 
            try
 
            {
 
                string auth_param_name = "AUTHID";
 
                string auth_cookie_name = FormsAuthentication.FormsCookieName;
 
  
 
                if (HttpContext.Current.Request.Form[auth_param_name] != null)
 
                {
 
                    UpdateCookie(auth_cookie_name, HttpContext.Current.Request.Form[auth_param_name]);
 
                }
 
                else if (HttpContext.Current.Request.QueryString[auth_param_name] != null)
 
                {
 
                    UpdateCookie(auth_cookie_name, HttpContext.Current.Request.QueryString[auth_param_name]);
 
                }
 
  
 
            }
 
            catch
 
            {
 
            }
 
        }
 
  
 
        private void UpdateCookie(string cookie_name, string cookie_value)
 
        {
 
            HttpCookie cookie = HttpContext.Current.Request.Cookies.Get(cookie_name);
 
            if (null == cookie)
 
            {
 
                cookie = new HttpCookie(cookie_name);
 
            }
 
            cookie.Value = cookie_value;
 
            HttpContext.Current.Request.Cookies.Set(cookie);
 
        }

　　

回到顶部

我的uploadify页面

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@{
    Layout = null;
}
<!DOCTYPE html>
<html>
<head>
    <link href="../../Content/uploadify/uploadify.css" rel="stylesheet" type="text/css" />
    <script src="../../Scripts/jquery-1.5.1.js" type="text/javascript"></script>
    <script src="../../Content/uploadify/jquery.uploadify.js" type="text/javascript"></script>
    <script src="../../js/jquery.easyui.min.js" type="text/javascript"></script>
    <link href="../../css/themes/default/easyui.css" rel="stylesheet" type="text/css" />
    <style type="text/css">
        *
        {
            font-family: "microsoft yahei" , "Times New Roman" , "宋体" , Times, serif;
        }
    </style>
    <script type="text/javascript">
        var auth = "@(Request.Cookies[FormsAuthentication.FormsCookieName] == null ? string.Empty : Request.Cookies[FormsAuthentication.FormsCookieName].Value)";
        var ASPSESSID = "@Session.SessionID";
        $(function () {
            $('#uploadify').uploadify({
                // debug: false,             //开启调试
                // successTimeout: 99999,            //超时时间
                formData: {                        //附带值
                    'userid': '用户id',
                    ASPSESSID: ASPSESSID,
                    AUTHID: auth
                },
                // queueID: 'some_file_queue',   //文件选择后的容器ID
                uploader: '/User/UploadUserImg',           // 服务器端处理地址
                swf: '../../Content/uploadify/uploadify.swf',    // 上传使用的 Flash
                width: 130,                          // 按钮的宽度
                height: 25,                         // 按钮的高度
                buttonText: "请选择上传的文件",                 // 按钮上的文字
                buttonCursor: 'hand',              // 按钮的鼠标图标
                fileObjName: 'Filedata',            // 上传参数名称
                // 两个配套使用
                fileTypeExts: "*.jpg;*.png",             // 扩展名
                fileTypeDesc: "请选择 jpg png 文件",     // 文件说明
                auto: false,                // 选择之后，自动开始上传
                multi: false,               // 是否支持同时上传多个文件
                queueSizeLimit: 1,          //设置上传队列中同时允许的上传文件数量 允许多文件上传的时候，同时上传文件的个数
                uploadLimit: 1,                         //uploadLimit：设置允许上传的文件数量，默认为999。
                // removeCompleted: false,   //设置已完成上传的文件是否从队列中移除，默认为true
                onQueueComplete: function (queueData) {//队列中全部文件上传完成时触发事件。
                    alert(queueData.uploadsSuccessful + '个文件上传完成，确认后刷新页面' + queueData.uploadsErrored);
                    window.parent.afterUpdateImg();
                },
                //返回一个错误，选择文件的时候触发
                onSelectError: function (file, errorCode, errorMsg) {
                    alert("error");
                    switch (errorCode) {
                        case -100:
                            alert("上传的文件数量已经超出系统限制的" + $('#uploadify').uploadify('settings', 'queueSizeLimit') + "个文件！");
                            break;
                        case -110:
                            alert("文件 [" + file.name + "] 大小超出系统限制的" + $('#uploadify').uploadify('settings', 'fileSizeLimit') + "大小！");
                            break;
                        case -120:
                            alert("文件 [" + file.name + "] 大小异常！");
                            break;
                        case -130:
                            alert("文件 [" + file.name + "] 类型不正确！");
                            break;
                    }
                },
                onFallback: function () {
                    alert("您未安装FLASH控件，无法上传图片！请安装FLASH控件后再试。"); //检测FLASH失败调用
                },
                onUploadSuccess: function (file, data, response) { //上传到服务器，服务器返回相应信息到data里
                }
 
            });
        });
    </script>
    <title>UploadUserImg</title>
</head>
<body>
    <div>
        <span id="uploadify"></span>
    </div>
    <div>
        <button onclick="javascript:$('#uploadify').uploadify('upload','*');">
            上传图片</button>
        <button onclick="javascript:$('#uploadify').uploadify('cancel', '*');">
            取消上传</button>
    </div>
</body>
</html>
回到顶部

我的global

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using System.Text;
using System.IO;
using System.Web.Security;
 
namespace BoYaOA
{
    // 注意: 有关启用 IIS6 或 IIS7 经典模式的说明，
    // 请访问 http://go.microsoft.com/?LinkId=9394801
 
    public class MvcApplication : System.Web.HttpApplication
    {
        public static void RegisterGlobalFilters(GlobalFilterCollection filters)
        {
            filters.Add(new HandleErrorAttribute());
        }
 
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
 
            routes.MapRoute(
                "Default", // 路由名称
                "{controller}/{action}/{id}", // 带有参数的 URL
                new { controller = "Home", action = "Index", id = UrlParameter.Optional } // 参数默认值
            );
 
        }
 
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
 
            RegisterGlobalFilters(GlobalFilters.Filters);
            RegisterRoutes(RouteTable.Routes);
        }
 
        protected void Application_BeginRequest(object sender, EventArgs e)
        {
            try
            {
                string session_param_name = "ASPSESSID";
                string session_cookie_name = "ASP.NET_SessionId";
                if (HttpContext.Current.Request.Form[session_param_name] != null)
                {
                    UpdateCookie(session_cookie_name, HttpContext.Current.Request.Form[session_param_name]);
                }
                else if (HttpContext.Current.Request.QueryString[session_param_name] != null)
                {
                    UpdateCookie(session_cookie_name, HttpContext.Current.Request.QueryString[session_param_name]);
                }
            }
            catch { }
            try
            {
 
                string auth_param_name = "AUTHID";
                string auth_cookie_name = FormsAuthentication.FormsCookieName;
                if (HttpContext.Current.Request.Form[auth_param_name] != null)
                {
                    UpdateCookie(auth_cookie_name, HttpContext.Current.Request.Form[auth_param_name]);
                }
                else if (HttpContext.Current.Request.QueryString[auth_param_name] != null)
                {
                    UpdateCookie(auth_cookie_name, HttpContext.Current.Request.QueryString[auth_param_name]);
                }
            }
            catch { }
        }
        private void UpdateCookie(string cookie_name, string cookie_value)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies.Get(cookie_name);
            if (null == cookie)
            {
                cookie = new HttpCookie(cookie_name);
            }
            cookie.Value = cookie_value;
            HttpContext.Current.Request.Cookies.Set(cookie);
        }
        public void Application_Error()  //Error是管道的事件    也可以从controller类看到   在前面加上Application_ 可以注册方法  放到mvc的GLOBAL
        {
            Exception ex = Server.GetLastError();
            #region Logs
            var fileName = DateTime.Now.ToString("yyyyMMdd") + ".txt";
            var actualLogPath = Server.MapPath("/LogFiles/" + fileName);
            StringBuilder builderLogs = new StringBuilder();
            builderLogs.AppendLine("\r\n");
            builderLogs.AppendLine("------------------------------------" + DateTime.Now.ToString());
            builderLogs.Append(ex.ToString());
            builderLogs.AppendLine("\r\n");
            using (StreamWriter write = new StreamWriter(actualLogPath, true))
            {
                write.Write(builderLogs.ToString());
            }
            #endregion
            //Server.Transfer("/WebError.htm", true);
            //return "error";
        }
 
    }
}

　　

　　

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