MVC ASP.net 会话为空

发布于 2024-09-17 20:51:48 字数 860 浏览 5 评论 0原文

我有以下代码，这些代码都可以，直到其他人在网站中添加了一些其他代码，现在有点搞砸了。

这是我的代码：

var existingContext = HttpContext.Current;
var writer = new StringWriter();
var response = new HttpResponse(writer);
var context = new HttpContext(existingContext.Request, response) { User = existingContext.User };
HttpContext.Current = context;
HttpContext.Current.SetSessionStateBehavior(System.Web.SessionState.SessionStateBehavior.Default);
HttpContext.Current.Session["Test"] = "test";
for (Int32 i = 0; i < existingContext.Session.Count; i++)
{
    HttpContext.Current.Session.Add(existingContext.Session.Keys[i], existingContext.Session[i]);
}

其背后的想法是能够捕获视图的输出并将其渲染为 pdf。现在我唯一的问题是，当我将上下文分配回 HttpContext.Current 时，会话为空。我需要能够初始化会话，以便我可以向其中分配变量。

我还要补充一点，这是在静态类中有

public static class ControllerExtensions

任何线索吗？

原文

I have the following code which was ok until someone else put some other code in the site which sorta mucks it up now.

This is my code:

var existingContext = HttpContext.Current;
var writer = new StringWriter();
var response = new HttpResponse(writer);
var context = new HttpContext(existingContext.Request, response) { User = existingContext.User };
HttpContext.Current = context;
HttpContext.Current.SetSessionStateBehavior(System.Web.SessionState.SessionStateBehavior.Default);
HttpContext.Current.Session["Test"] = "test";
for (Int32 i = 0; i < existingContext.Session.Count; i++)
{
    HttpContext.Current.Session.Add(existingContext.Session.Keys[i], existingContext.Session[i]);
}

The idea behind this is to be able to capture the output of a view and render it to pdf. Now my only issue is that when i assign context back to HttpContext.Current, the session is null. I need to be able to initialize the session so that i can assign variables into it.

i will also add that this is inside a static class

public static class ControllerExtensions

Any clues?

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

幻梦 2024-09-24 20:51:48

如果这种情况发生在 HttpHandler 内部，则需要将 IRequiresSessionState 接口添加到处理程序以使会话可用 -

public class HttpPdfWriteHandler : IHttpHandler, IRequiresSessionState {
     [...]
}

http://msdn.microsoft.com/en-us/library/system.web.sessionstate.irequiressessionstate.aspx

If this is occurring inside of an HttpHandler, you need to add the IRequiresSessionState interface to your handler for the session to be available -

public class HttpPdfWriteHandler : IHttpHandler, IRequiresSessionState {
     [...]
}

http://msdn.microsoft.com/en-us/library/system.web.sessionstate.irequiressessionstate.aspx

回复收藏 0 原文

习ぎ惯性依靠 2024-09-24 20:51:48

我现在似乎已经解决了这个问题，那就是删除这些行：

            var context = new HttpContext(existingContext.Request, response) { User = existingContext.User };
        HttpContext.Current = context;
        HttpContext.Current.Request.
        for (Int32 i = 0; i < existingContext.Session.Count; i++)
        {
            HttpContext.Current.Session.Add(existingContext.Session.Keys[i], existingContext.Session[i]);
        }

I seem to have solved the issue for now and that was to remove the lines:

            var context = new HttpContext(existingContext.Request, response) { User = existingContext.User };
        HttpContext.Current = context;
        HttpContext.Current.Request.
        for (Int32 i = 0; i < existingContext.Session.Count; i++)
        {
            HttpContext.Current.Session.Add(existingContext.Session.Keys[i], existingContext.Session[i]);
        }

回复收藏 0 原文