在ASP.NET Core中的_Layout.cshtml中访问cookie [英] access cookie in _Layout.cshtml in ASP.NET Core

问题描述

登录成功后，我正在尝试将身份验证密钥存储到我的cookie中:

I'm trying to store an authentication-key into my cookies when login succeeded:

HttpContext.Response.Cookies.Append("Bearer", accessToken, cookieMonsterOptions);

因此在控制器类中可以使用.我可以轻松创建和阅读我的cookie. 但是，现在我要检查，如果存在的话，请在我的_Layout.cshtml中读取cookie的值，并显示已登录用户的名称-或登录链接. 但是如何读取部分_Layout.cshtml中的cookie?

So in the controller-class this works. I can easily create and read my cookies. But now I want to check and, if it exists, read the value of a cookie in my _Layout.cshtml and show the name of the logged in user - or the link to login. But how can I read my cookies in the partial _Layout.cshtml?

string value = HttpContext.Request.Cookies.Get("Bearer");

不起作用.它尝试将System.Web添加到我的用法中，或者说HttpContext是静态的，并且需要引用来访问Request.

doesn't work. It tries to add either System.Web to my usings or says HttpContext is static and needs a reference to access Request.

有什么建议或想法吗?

推荐答案

在ASP.NET Core中，不再有静态HttpContext的概念.新的Microsoft Web Framework中的依赖项注入规则.关于视图，有@inject指令用于访问诸如IHttpContextAccessor服务之类的注册服务( https://docs.asp.net/en/latest/mvc/views/dependency-injection.html ).

In ASP.NET Core there is no concept of a static HttpContext any more. Dependency Injection rules in the new Microsoft Web Framework. Regarding views there is the @inject directive for accessing registered services like IHttpContextAccessor service (https://docs.asp.net/en/latest/mvc/views/dependency-injection.html).

使用IHttpContextAccessor，您可以像本例中那样获得HttpContext和cookie信息.

Using the IHttpContextAccessor you can get the HttpContext and the cookie information like in this example.

 @inject Microsoft.AspNetCore.Http.IHttpContextAccessor HttpContextAccessor

 @{
    foreach (var cookie in HttpContextAccessor.HttpContext.Request.Cookies)
    {
        @cookie.Key  @cookie.Value
    }
}

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