我的ASP.NET MVC严重错误

发布于 2025-02-08 15:51:59 字数 1810 浏览 2 评论 0原文

我已经编程了ASP.NET Web表单已经很长时间了，最近决定学习ASP.NET MVC。

但是，我显然遇到了一些我无法分辨的问题。我在网络中遇到的人没有同样的问题。

＃1：web.config问题

当我第一次在VS2019中创建我的MVC项目时，没有web.config，因此我通过 project＆gt;添加新项目＆gt; Web配置文件。 我所需要的只是存储我的连接字符串。当添加时，它只有两行代码：

<configuration>
</configuration>

我添加了连接字符串，并且文件看起来像这样：

<configuration>
 <connectionStrings>
    <add name="connection" connectionString="myconnectionstringblablabla" />
  </connectionStrings>
</configuration>

在控制器中，我尝试通过执行来获取连接字符串，

string constr = ConfigurationManager.ConnectionStrings["connection"].ConnectionString;

这发生了：

> Web.config的键。 Web.config不适用于ASP.NET MVC吗？

＃2 global.asax

与web.config不同，global.asax文件甚至都不显示在添加新项目菜单：

尝试了此解决方案：如何将global.asax文件添加到ASP.NET MVC5项目也没有工作。

＃3会议＆amp; httpcontext

在asp.net web.forms中，我通常会使用这样的会话变量：

Session["ClientID"] = somevalue;

尽管我已经看到人们这样做，但我无法在ASP.NET MVC中这样做。

另外，我无法从非控制器类访问httpcontext：

HttpContext.Current.Request.Cookies["mycookie"];

它抛出 httpcontext不包含“当前” ...

====================================== ===================== 我的程序有问题。我不知道如何检查我是否正在使用正确的引用或组件，但我认为我缺少一些东西。

请帮忙

原文

I have been programming ASP.NET Web Forms for a long time and recently decided to learn ASP.NET MVC.

However, I am clearly having some issues that I cannot tell how. No one that I have come across in web had the same problems.

#1: Web.config issues

When I first created my MVC project in VS2019, there was no web.config so I added it via project > add new item> Web Configuration File.
All I needed it for was to store my connection string. When added it had only two lines of code:

<configuration>
</configuration>

I added my connection string and the file looked like this:

<configuration>
 <connectionStrings>
    <add name="connection" connectionString="myconnectionstringblablabla" />
  </connectionStrings>
</configuration>

In my controller I tried to fetch the connection string by doing,

string constr = ConfigurationManager.ConnectionStrings["connection"].ConnectionString;

And this happened:

Same things happens when fethcing AppSetting keys from web.config.
Is web.config not meant to be used for ASP.NET MVC?

#2 Global.asax

Unlike web.config, Global.asax file doesn't even show up on the add new item menu:

Tried this solution: How to add a Global.asax file to ASP.NET MVC5 project Didnt work either.

#3 Session & HttpContext

In ASP.NET Web.Forms, I would normally use Session variables like this:

Session["ClientID"] = somevalue;

I can't do that in ASP.NET MVC, although I have seen people doing it.

Also I can't access to HttpContext from a non-controller class:

HttpContext.Current.Request.Cookies["mycookie"];

It throws HttpContext does not contain a definition for 'Current'...

====================================
Is Something wrong with my program. I don't know how to check if I am using correct references or assemblies, but I think I am missing something.

Please help

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