Asp.Net MVC 5使用Identity之简单的注册和登陆

由于.Net MVC 5登陆和注册方式有很多种，但是Identity方式去实现或许会更简单更容易理解

首先新建一个项目

其次如下选择Empty和MVC的选项

然后打开NuGet包管理器分别安装几个包

EntityFramework
Microsoft.AspNet.Identity.Core
Microsoft.AspNet.Identity.EntityFramework
Microsoft.AspNet.Identity.Owin
Modernizr
Microsoft.Owin.Host.SystemWeb
Bootstrap

然后往Models文件夹里面添加ApplicationUser类，SignInModel类，SignUpModel类，ApplicationDbContext类，当然ApplicationDbContext类你也可以分到DbContext到另一个类库，我这是做演示用的，分层不用么这么明确

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ApplicationUser类

ApplicationDbContext类

SignInModel类

SignUpModel类

然后往App_Start文件夹里面添加ApplicationSignInManager类，ApplicationUserManager类，ApplicationUserStore类

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ApplicationUserManager类

ApplicationSignInManager类

ApplicationUserStore类

然后往Controller文件夹里面添加HomeController控制器，AccountController控制器

先往HomeController控制器里添加index视图

index视图代码

@using Microsoft.AspNet.Identity

@{

    ViewBag.Title = "Index";

}

<h2>Index</h2>

@if (Request.IsAuthenticated)

{

    using (Html.BeginForm("LogOff", "Account", FormMethod.Post, new { id = "logoutForm", @class = "navbar-right" }))

    {

        @Html.AntiForgeryToken()

        <p>Hello @User.Identity.GetUserName()</p>

        <ul>

            <li><a href="javascript:document.getElementById('logoutForm').submit()">Log off</a></li>

        </ul>

    }

}

else

{

    <ul>

        <li>

            @Html.ActionLink("Login", "Login", "Account")

        </li>

        <li>

            @Html.ActionLink("Register", "Register", "Account")

        </li>

    </ul>

}

然后AccountController控制器代码

private ApplicationSignInManager signInManager;

        private ApplicationUserManager userManager;

        public ApplicationSignInManager SignInManager

        {

            get

            {

                return signInManager ?? HttpContext.GetOwinContext().Get<ApplicationSignInManager>();

            }

            private set

            {

                signInManager = value;

            }

        }

        public ApplicationUserManager UserManager

        {

            get { return userManager ?? HttpContext.GetOwinContext().GetUserManager<ApplicationUserManager>(); }

            private set

            {

                userManager = value;

            }

        }

        [AllowAnonymous]

        public ActionResult Login(string returnUrl)

        {

            ViewBag.ReturnUrl = returnUrl;

            return View();

        }

        [HttpPost]

        [AllowAnonymous]

        [ValidateAntiForgeryToken]

        public async Task<ActionResult> Login(SignInModel model, string returnUrl)

        {

            if (!ModelState.IsValid)

            {

                return View(model);

            }

            var result = await SignInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, shouldLockout: false);

            switch (result)

            {

                case SignInStatus.Success:

                    return RedirectToLocal(returnUrl);

                case SignInStatus.Failure:

                default:

                    ModelState.AddModelError("", "登陆无效");

                    return View(model);

            }

        }

        [AllowAnonymous]

        public ActionResult Register()

        {

            return View();

        }

        [HttpPost]

        [AllowAnonymous]

        [ValidateAntiForgeryToken]

        public async Task<ActionResult> Register(SignUpModel model)

        {

            if (ModelState.IsValid)

            {

                var user = new ApplicationUser { UserName = model.Email, Email = model.Email };

                var result = await UserManager.CreateAsync(user, model.Password);

                if (result.Succeeded)

                {

                    await SignInManager.SignInAsync(user, isPersistent: false, rememberBrowser: false);

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

                }

                AddErrors(result);

            }

            return View(model);

        }

        [HttpPost]

        [ValidateAntiForgeryToken]

        public ActionResult LogOff()

        {

            AuthenticationManager.SignOut();

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

        }

        private void AddErrors(IdentityResult result)

        {

            foreach (var error in result.Errors)

            {

                ModelState.AddModelError("", error);

            }

        }

        private ActionResult RedirectToLocal(string returnUrl)

        {

            if (Url.IsLocalUrl(returnUrl))

            {

                return Redirect(returnUrl);

            }

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

        }

        private IAuthenticationManager AuthenticationManager

        {

            get { return HttpContext.GetOwinContext().Authentication; }

        }

然后分别添加生成Login和Register页面

Login页面代码

@model IdentityDemo.Models.SignInModel

@{

    ViewBag.Title = "Login";

}

<h2>Login</h2>

@using (Html.BeginForm("Login", "Account", new { ReturnUrl = ViewBag.ReturnUrl }, FormMethod.Post))

{

    @Html.AntiForgeryToken()

    <div class="form-horizontal">

        <h4>SignInModel</h4>

        <hr />

        @Html.ValidationSummary(true, "", new { @class = "text-danger" })

        <div class="form-group">

            @Html.LabelFor(model => model.Email, htmlAttributes: new { @class = "control-label col-md-2" })

            <div class="col-md-10">

                @Html.TextBoxFor(model => model.Email, new { htmlAttributes = new { @class = "form-control" } })

                @Html.ValidationMessageFor(model => model.Email, "", new { @class = "text-danger" })

            </div>

        </div>

        <div class="form-group">

            @Html.LabelFor(model => model.Password, htmlAttributes: new { @class = "control-label col-md-2" })

            <div class="col-md-10">

                @Html.PasswordFor(model => model.Password, new { htmlAttributes = new { @class = "form-control" } })

                @Html.ValidationMessageFor(model => model.Password, "", new { @class = "text-danger" })

            </div>

        </div>

        <div class="form-group">

            @Html.LabelFor(model => model.RememberMe, htmlAttributes: new { @class = "control-label col-md-2" })

            <div class="col-md-10">

                <div class="checkbox">

                    @Html.CheckBoxFor(model => model.RememberMe)

                    @Html.ValidationMessageFor(model => model.RememberMe, "", new { @class = "text-danger" })

                </div>

            </div>

        </div>

        <div class="form-group">

            <div class="col-md-offset-2 col-md-10">

                <input type="submit" value="SignIn" class="btn btn-default" />

            </div>

        </div>

    </div>

}

<div>

    @Html.ActionLink("注册", "Register")

</div>

Register页面代码

@model IdentityDemo.Models.SignUpModel

@{

    ViewBag.Title = "Register";

}

<h2>Register</h2>

@using (Html.BeginForm("Register", "Account", FormMethod.Post))

{

    @Html.AntiForgeryToken()

    <div class="form-horizontal">

        <h4>SignUpModel</h4>

        <hr />

        @Html.ValidationSummary(true, "", new { @class = "text-danger" })

        <div class="form-group">

            @Html.LabelFor(model => model.Email, htmlAttributes: new { @class = "control-label col-md-2" })

            <div class="col-md-10">

                @Html.TextBoxFor(model => model.Email, new { htmlAttributes = new { @class = "form-control" } })

            </div>

        </div>

        <div class="form-group">

            @Html.LabelFor(model => model.Password, htmlAttributes: new { @class = "control-label col-md-2" })

            <div class="col-md-10">

                @Html.PasswordFor(model => model.Password, new { htmlAttributes = new { @class = "form-control" } })

            </div>

        </div>

        <div class="form-group">

            @Html.LabelFor(model => model.ConfirmPassword, htmlAttributes: new { @class = "control-label col-md-2" })

            <div class="col-md-10">

                @Html.PasswordFor(model => model.ConfirmPassword, new { htmlAttributes = new { @class = "form-control" } })

            </div>

        </div>

        <div class="form-group">

            <div class="col-md-offset-2 col-md-10">

                <input type="submit" value="SignUp" class="btn btn-default" />

            </div>

        </div>

    </div>

}

然后往项目的根目录添加Startup类

然后修改根目录的Web.Config文件

最后我们来测试一下看看效果怎么样，如下图

巴特西

Asp.Net MVC 5使用Identity之简单的注册和登陆

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