在 ASP.NET Core 2.2 类库中访问 HttpContext

Question

我需要HttpContext.Current在 ASP.NET Core 2.2 的类库中访问HttpContext.Current.Request.Url.ToString().Contains("SAMLart")当我尝试仅尝试使用 HomeController 中的方法时，我正在尝试将代码移植过来，HttpContext甚至在主 Web 项目中都没有。Current

Answer 1

注册班级IHttpContextAccessor如下Startup：

public void ConfigureServices(IServiceCollection services)

{

    services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>();

    // Or you can also register as follows

    services.AddHttpContextAccessor();

}

然后在你的类库中

public class Test 

{

    private IHttpContextAccessor _httpContextAccessor;

    public Test(IHttpContextAccessor httpContextAccessor)

    {

         _httpContextAccessor = httpContextAccessor;

    }

    public void Foo()

    {

        _httpContextAccessor.HttpContext.Request.Path..

    }

}