MVC使用uploadify3.1 IE下正常 firefox、chrome出現HTTPERROR 302錯誤解決辦法

jquery uploadify在ie下可以正常上傳，在實現異步上傳的時候，每一個文件在上傳時都會提交給服務器一個請求。每個請求都需要安全驗證，session 和cookie的校驗。是的，就是這樣。由於jquery uploadify是借助flash來實現上傳的，每一次向后台發送數據流請求時，ie會自動把本地cookie存儲捆綁在一起發送給服務器。但 firefox、chrome不會這樣做，他們會認為這樣不安全。

首先需要對global.asxa添加如下內容

 

        protected void Application_BeginRequest(object sender, EventArgs e)
        {
            /* we guess at this point session is not already retrieved by application so we recreate cookie with the session id... */
            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);
        }

 

初始化頁面上傳插件代碼如下

    <script type="text/javascript">
        var auth = "@(Request.Cookies[FormsAuthentication.FormsCookieName]==null ? string.Empty : Request.Cookies[FormsAuthentication.FormsCookieName].Value)";
        var ASPSESSID = "@Session.SessionID";

        $(function () {
            $('#upload').uploadify({
                'formData': { 'folder': '/Upload', 'ASPSESSID': ASPSESSID, 'AUTHID': auth },
                'buttonText': '瀏覽',
                'buttonClass': 'browser',
                'fileSizeLimit' : '100KB',
                'fileTypeExts': '*.xls;*.xlsx',
                'removeCompleted': false,
                'swf': '@Url.Content("~/Scripts/Uploadify/uploadify.swf")',
                'uploader': '/Upload',
                'onUploadSuccess': function (file, data, response) {}
            });
        });
    </script>