Asp.net Core Web Mvc项目添加Jwt验证

1、新建Asp.net Core Web Mvc项目

 2、项目目录结构如下：

 3、修改launchSettings.json

{
  "profiles": {   
    "WebApplication3": {
      "commandName": "Project",
      "dotnetRunMessages": "true",
      "launchBrowser": true,
      "applicationUrl": "http://localhost:5000",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }
  }
}

4、Nuget包下载安装

Microsoft.AspNetCore.Authentication.JwtBearer

5、添加JwtManage.cs

public class JwtManage
    {
        public static string CreateToken(string name)
        {
            var secretKey = "qwertyuiop123456";
            var securityKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(secretKey));
            var credentials = new SigningCredentials(securityKey, SecurityAlgorithms.HmacSha256);
            var claims = new[] {
                new Claim(ClaimTypes.Name,name),
                new Claim(JwtRegisteredClaimNames.Jti,Guid.NewGuid().ToString())
            };
            var token = new JwtSecurityToken(
                "myToken",
                "aaaa",
                claims,
                expires: DateTime.Now.AddMinutes(90),
                signingCredentials:credentials
                );
            return new JwtSecurityTokenHandler().WriteToken(token);
        }
    }

6、添加UserController.cs

 public class UserController : Controller
    {
        public IActionResult Index()
        {
            return View();
        }

        [HttpPost]
        public IActionResult Login()
        {
            var userName = Request.Form["Name"];
            var password = Request.Form["Password"];
            if (userName == "admin" && password =="admin")
            {
                var token = JwtManage.CreateToken(userName);
                Response.Cookies.Append("access_token", token);

                return RedirectToAction("Index", "Home");

            }
            else
            {
                return RedirectToAction("Error", "Home");
            }

            
        }
    }

7、修改Startup.cs

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.AddControllersWithViews();

            services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
                .AddJwtBearer(options =>
                {
                    options.Events = new JwtBearerEvents()
                    {
                        OnMessageReceived=context=>
                        {
                            context.Token = context.Request.Cookies["access_token"];
                            return Task.CompletedTask;
                        }
                    };
                    options.TokenValidationParameters = new Microsoft.IdentityModel.Tokens.TokenValidationParameters
                    {
                        ValidateIssuer = true,
                        ValidateAudience = true,
                        ValidateLifetime = true,
                        ValidateIssuerSigningKey = true,
                        ValidIssuer = "myToken",
                        ValidAudience = "aaaa",
                        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes("qwertyuiop123456"))
                    };

                });
        }

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

            app.UseAuthentication();
            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllerRoute(
                    name: "default",
                    pattern: "{controller=User}/{action=Index}/{id?}");
            });
        }
    }

8、修改HomeController.cs

 [Authorize]
    public class HomeController : Controller
    {
        private readonly ILogger<HomeController> _logger;

        public HomeController(ILogger<HomeController> logger)
        {
            _logger = logger;
        }

        public IActionResult Index()
        {
            return View();
        }

        public IActionResult Privacy()
        {
            return View();
        }

        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
        public IActionResult Error()
        {
            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
        }
    }

9、Views文件下添加User文件夹并添加index.cshtml

@{
    ViewData["Title"] = "Login Page";
}

<form asp-controller="user" asp-action="login" method="post">
    <input type="text" name="name" value=""/>
    <input type="password" name="password" value=""/>

    <input type="submit" name="登录" value="登录"/>


</form>

10、启动运行，输入admin，admin