1、在Startup类的Configure方法，添加身份验证的中间件AuthenticationMiddleware
app.UseAuthentication();
2、在Startup类的ConfigureServices方法，添加Cookie验证的服务，使用Cookies验证体系，
CookieAuthenticationDefaults.AuthenticationScheme="Cookies"
services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme) .AddCookie(CookieAuthenticationDefaults.AuthenticationScheme, options => { options.AccessDeniedPath = "/Sys/Home/Index"; options.LoginPath = "/Sys/Home/Login"; options.Cookie.Name = "AuthCookie"; options.Cookie.Path = "/"; options.Cookie.Expiration = TimeSpan.FromMinutes(30); });
3、添加登录action，ClaimsIdentity(string authenticationType)的authenticationType必须和service设置的验证体系一样，才能正常验证，
[HttpPost] [AllowAnonymous] public async Task<ActionResult> Login() { string AdminAccount = Request.Form["AdminAccount"]; string Password = Request.Form["Password"]; if (string.IsNullOrWhiteSpace(AdminAccount)) { return JsonError("账号不能为空"); } if (string.IsNullOrWhiteSpace(Password)) { return JsonError("密码不能为空"); } Admin admin = _context.Admins.FirstOrDefault(c => c.AdminAccount == AdminAccount && c.Password == Password); if (admin == null) { return JsonError("用户名或者密码错误"); } ClaimsIdentity identity = new ClaimsIdentity(CookieAuthenticationDefaults.AuthenticationScheme); identity.AddClaim(new Claim(ClaimTypes.Name, admin.Id.ToString())); await HttpContext.SignInAsync(new ClaimsPrincipal(identity)); return JsonSuccess(); }
4、在需要验证的控制器上加[AuthorizeAttribute]特性，通过HttpContext.User.Identity.IsAuthenticated可判断用户是否已通过验证
5、退出登录Action
/// <summary> /// 退出登录 /// </summary> /// <returns></returns> public async Task<ActionResult> SignOut() { await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme); return JsonSuccess(); }