c# - 在 Asp Core 2 View 中访问 Session 对象

Question

我想在 View 中显示 session 。那可能吗？ 在我看来，我尝试这样做

<div class="content-header col-xs-12">
   <h1>Welcome, @HttpContext.Session.GetString("userLoggedName")</h1>
</div>

但是我得到一个错误

Severity Code Description Project File Line Suppression State Error CS0120 An object reference is required for the non-static field, method, or property 'HttpContext.Session'

任何帮助，我将不胜感激。谢谢

Answer 1

您可以将IHttpContextAccessor 实现注入(inject)到您的 View 中并使用它来获取 session 对象

@using Microsoft.AspNetCore.Http
@inject IHttpContextAccessor HttpContextAccessor
<h1>@HttpContextAccessor.HttpContext.Session.GetString("userLoggedName")</h1>

假设您已经在 Startup 类中设置了启用 session 的所有设置。

public void ConfigureServices(IServiceCollection services)
{
    services.AddSession(s => s.IdleTimeout = TimeSpan.FromMinutes(30));
    services.AddMvc();
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    app.UseSession();  // This line is needed

    app.UseMvc(routes =>
    {
        routes.MapRoute(
            name: "default",
            template: "{controller=Home}/{action=Index}/{id?}");

    });
}