.net 核心 JwtBearerAuthentication 未定义答案

【问题标题】：.net core JwtBearerAuthentication not defined.net 核心 JwtBearerAuthentication 未定义
【发布时间】：2018-01-20 22:29:03
【问题描述】：

我第一次在 asp.net 核心中使用基于令牌的系统。我关注了这篇文章：

https://stormpath.com/blog/token-authentication-asp-net-core

我的 startup.cs 如下所示：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using blog.Persistence;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.SpaServices.Webpack;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.EntityFrameworkCore;
using AutoMapper;
using System.Text;
using Microsoft.IdentityModel.Tokens;

namespace WebApplicationBasic
{
    public class Startup
    {
        public Startup(IHostingEnvironment env)
        {
            var builder = new ConfigurationBuilder()
                .SetBasePath(env.ContentRootPath)
                .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
                .AddEnvironmentVariables();
            Configuration = builder.Build();
        }

        public IConfigurationRoot Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddAutoMapper();

            services.AddDbContext<VegaDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("Default")));

            // Add framework services.
            services.AddMvc();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
             // secretKey contains a secret passphrase only your server knows
            var signingKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(Configuration.GetSection("TokenAuthentication:SecretKey").Value));

            var tokenValidationParameters = new TokenValidationParameters
            {
                // The signing key must match!
                ValidateIssuerSigningKey = true,
                IssuerSigningKey = signingKey,

                // Validate the JWT Issuer (iss) claim
                ValidateIssuer = true,
                ValidIssuer = "ExampleIssuer",

                // Validate the JWT Audience (aud) claim
                ValidateAudience = true,
                ValidAudience = "ExampleAudience",

                // Validate the token expiry
                ValidateLifetime = true,

                // If you want to allow a certain amount of clock drift, set that here:
                ClockSkew = TimeSpan.Zero
            };

            app.UseJwtBearerAuthentication(new JwtBearerOptions
            {
                AutomaticAuthenticate = true,
                AutomaticChallenge = true,
                TokenValidationParameters = tokenValidationParameters
            });

            loggerFactory.AddConsole(Configuration.GetSection("Logging"));
            loggerFactory.AddDebug();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseWebpackDevMiddleware(new WebpackDevMiddlewareOptions {
                    HotModuleReplacement = true
                });
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
            }

            app.UseStaticFiles();

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

                routes.MapSpaFallbackRoute(
                    name: "spa-fallback",
                    defaults: new { controller = "Home", action = "Index" });
            });
        }
    }
}

问题是UseJwtBearerAuthentication 和JwtBearerOptions 是未定义的。有什么问题？我需要获取另一个 nuget 包吗？

【问题讨论】：

您是否添加了对正确包的引用？？

标签： c# asp.net asp.net-core jwt

【解决方案1】：

根据@Tseng 的评论，我从 Github 下载了参考代码并删除了 Microsoft.AspNetCore.Authentication.JwtBearer 包，果然我得到了错误“找不到类型或命名空间名称”对于 UseJwtBearerAuthentication 和JwtBearerOptions.

在重新安装软件包时，我注意到最新版本将无法安装 - 我尝试了 1.1.1 版，它安装并成功构建。

【讨论】：