在asp.net核心内向用户分配角色将返回此错误“您无权访问此资源". [英] Assigning a user to a Role inside asp.net core will return this error "You do not have access to this resource."

问题描述

我创建了一个新的asp.net核心Web应用程序，该应用程序使用单个用户帐户.现在，我正在尝试实现一个简单的角色分配方案.

I created a new asp.net core web application which uses individual user accounts. now i am trying to implement a simple role assignment scenario.

所以我注册了一个测试用户，该用户被添加到AspNetUser表中:

so i register a test user, where the user got added inside the AspNetUser table:-

然后在AspNetRole中添加一个名为管理员"的新角色:

then i add a new Role named "Administrator" inside the AspNetRole:-

然后我添加了一个新的AspNetUserRole将用户链接到角色:-

then i added a new AspNetUserRole to link the user to the Role:-

然后，我在About动作方法上添加了以下Authorize批注:-

then i added the following Authorize annotation on the About action method:-

[Authorize(Roles = "Administrator")]
        public IActionResult About()
        {
            ViewData["Message"] = "Your application description page.";

            return View();
        }

但是当我尝试使用用户访问关于"操作方法时，出现此错误:-

but when i try to access the About action method using the user, i got this error:-

您无权访问此资源."

You do not have access to this resource."

编辑

这里是startup.cs，我还没有修改，所以我认为它包含内置代码:-

Here is the startup.cs , which i have not modified, so i think it contain the built-in code:-

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using WebApplication2.Data;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;

namespace WebApplication2
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.Configure<CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded = context => true;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });

            services.AddDbContext<ApplicationDbContext>(options =>
                options.UseSqlServer(
                    Configuration.GetConnectionString("DefaultConnection")));
            services.AddDefaultIdentity<IdentityUser>()
                .AddEntityFrameworkStores<ApplicationDbContext>();

            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseDatabaseErrorPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseStaticFiles();
            app.UseCookiePolicy();

            app.UseAuthentication();

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

推荐答案

我猜您是在创建用户后手动在AspNetUserRole表中创建角色和链接角色.请不要忘记注销用户并再次登录，这样角色声明将获取/更新新添加的角色.

I guess you manually create role and link role in AspNetUserRoletable after creating your user . Please don't forget to Logout user and login again , so role claims will get/update the new added role .

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