mvc core2.1 Identity.EntityFramework Core 登录 (三）

Controllers->AccountController.cs 新建

[HttpGet]
        [AllowAnonymous]
        public async Task<IActionResult> Login(string returnUrl = null)
        {
            // Clear the existing external cookie to ensure a clean login process
            await HttpContext.SignOutAsync(IdentityConstants.ExternalScheme);
            ViewData["ReturnUrl"] = returnUrl;
            return View();
        }

        [HttpPost]
        [AllowAnonymous]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Login(LoginViewModel model, string returnUrl = null)
        {
            ViewData["ReturnUrl"] = returnUrl;
            if (ModelState.IsValid)
            {
                // This doesn't count login failures towards account lockout
                // To enable password failures to trigger account lockout, set lockoutOnFailure: true
                var result = await _signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, lockoutOnFailure: false);
                if (result.Succeeded)
                {
                    return RedirectToLocal(returnUrl);
                }
                else
                {
                    ModelState.AddModelError(string.Empty, "Invalid login attempt.");
                    return View(model);
                }
            }
            // If we got this far, something failed, redisplay form
            return View(model);
        }

        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Logout()
        {
            await _signInManager.SignOutAsync();
            return RedirectToAction(nameof(HomeController.Index), "Home");
        }

Models->AccountViewModels->LoginViewModel.cs 新建

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;

namespace IdentityMvc.Models.AccountViewModels
{
    public class LoginViewModel
    {
        [Required]
        [EmailAddress]
        public string Email { get; set; }

        [Required]
        [DataType(DataType.Password)]
        public string Password { get; set; }

        [Display(Name = "Remember me?")]
        public bool RememberMe { get; set; }
    }
}

Views->Account->Login.cshtml 新建

@using System.Collections.Generic
@using System.Linq
@using Microsoft.AspNetCore.Http
@using Microsoft.AspNetCore.Http.Authentication
@model LoginViewModel
@inject SignInManager<ApplicationUser> SignInManager

@{
    ViewData["Title"] = "Log in";
}

<h2>@ViewData["Title"]</h2>
<div class="row">
    <div class="col-md-4">
        <section>
            <form asp-route-returnurl="@ViewData["ReturnUrl"]" method="post">
                <h4>Use a local account to log in.</h4>
                <hr />
                <div asp-validation-summary="All" class="text-danger"></div>
                <div class="form-group">
                    <label asp-for="Email"></label>
                    <input asp-for="Email" class="form-control" />
                    <span asp-validation-for="Email" class="text-danger"></span>
                </div>
                <div class="form-group">
                    <label asp-for="Password"></label>
                    <input asp-for="Password" class="form-control" />
                    <span asp-validation-for="Password" class="text-danger"></span>
                </div>
                <div class="form-group">
                    <div class="checkbox">
                        <label asp-for="RememberMe">
                            <input asp-for="RememberMe" />
                            @Html.DisplayNameFor(m => m.RememberMe)
                        </label>
                    </div>
                </div>
                <div class="form-group">
                    <button type="submit" class="btn btn-default">Log in</button>
                </div>
                <div class="form-group">
                    <p>
                        <a asp-action="ForgotPassword">Forgot your password?</a>
                    </p>
                    <p>
                        <a asp-action="Register" asp-route-returnurl="@ViewData["ReturnUrl"]">Register as a new user?</a>
                    </p>
                </div>
            </form>
        </section>
    </div>
    <div class="col-md-6 col-md-offset-2">
        <section>
            <h4>Use another service to log in.</h4>
            <hr />
            @{
                var loginProviders = (await SignInManager.GetExternalAuthenticationSchemesAsync()).ToList();
                if (loginProviders.Count == 0)
                {
                    <div>
                        <p>
                            There are no external authentication services configured. See <a href="https://go.microsoft.com/fwlink/?LinkID=532715">this article</a>
                            for details on setting up this ASP.NET application to support logging in via external services.
                        </p>
                    </div>
                }
                else
                {
                    <form asp-action="ExternalLogin" asp-route-returnurl="@ViewData["ReturnUrl"]" method="post" class="form-horizontal">
                        <div>
                            <p>
                                @foreach (var provider in loginProviders)
                                {
                                    <button type="submit" class="btn btn-default" name="provider" value="@provider.Name" title="Log in using your @provider.DisplayName account">@provider.Name</button>
                                }
                            </p>
                        </div>
                    </form>
                }
            }
        </section>
    </div>
</div>

@section Scripts {
    @await Html.PartialAsync("_ValidationScriptsPartial")
}

退出登录只有一个方法

post  /Account/logout