IApplicationBuilder 不包含 UseIdentity 的定义

Question

我正在按照示例在 AspNet Core 3.0

上配置 AspNet Core Identity

这是 StartUp.cs 文件的代码

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Identity;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Users_WEB_APP.Models;

namespace Users_WEB_APP
{
    public class Startup
    {
        public IConfiguration Configuration { get; }
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddDbContext<AppIdentityDbContext>(options => options.UseSqlServer(Configuration["Data:ASPNET_IDENTITY:ConnectionString"]));
            services.AddIdentity<AppUser, IdentityRole>()
                .AddEntityFrameworkStores<AppIdentityDbContext>();
            services.AddMvc(options => options.EnableEndpointRouting = false);
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            app.UseStatusCodePages();
            app.UseDeveloperExceptionPage();
            app.UseStaticFiles();
            app.UseIdentity();
            app.UseMvcWithDefaultRoute();
        }
    }
}

但在线 app.UseIdentity(); 我收到错误

'IApplicationBuilder' does not contain a definition for 'UseIdentity', and no accessible extension method 'UseIdentity' accepting a first argument of type 'IApplicationBuilder' could be found (are you messing a using directive or an assembly reference?)

我做错了什么？

Answer 1

文档说从 ASP.NET Core 2.2 开始，应该使用 UseIdentity is now obsolete and that UseAuthentication 代替

This method is obsolete and will be removed in a future version. The recommended alternative is UseAuthentication(IApplicationBuilder)

https://docs.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.builder.builderextensions.useidentity?view=aspnetcore-2.2

Answer 2

使用

app.UseAuthentication();

对我有用