JQuery文件上传插件uploadify在MVC中Session丢失的解决方案
<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);
}
我的uploadify页面
@{
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>
我的global
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";
}
}
}
知识没有高低贵贱之分。
