MVC ASP.net 会话为空 [英] MVC ASP.net session is null

问题描述

我有以下代码没问题，直到其他人在网站上放了一些其他代码，现在有点搞砸了.

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

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]);
}

这背后的想法是能够捕获视图的输出并将其呈现为 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，以便我可以将变量分配给它.

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.

我还要补充一点，这是在一个静态类中

i will also add that this is inside a static class

public static class ControllerExtensions

有什么线索吗?

推荐答案

我现在似乎已经解决了这个问题，那就是删除这些行:

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]);
        }

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