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

开发工具：Vs2017

数据库：Sql Server2012

代码下载：

链接：https://pan.baidu.com/s/1JXxMu36h0SmuxGkl2HwHrA
提取码：6g0u

1、首先新建一个项目

 

 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

 

 2、往Models文件夹新增类：

    public class ApplicationDbContext:IdentityDbContext<ApplicationUser>
    {
        public ApplicationDbContext() : base("IdentityDemo")
        {

        }

        public static ApplicationDbContext Cteate()
        {
            return new ApplicationDbContext();
        }
    }

    public class ApplicationUser:IdentityUser
    {

    }

    public class SignInModel
    {

        [Required]
        [Display(Name ="Email")]
        public string Email { get; set; }

        [Required]
        [Display(Name = "Password")]
        [DataType(DataType.Password)]
        public string Password { get; set; }

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

    }

    public class SignUpModel
    {

        [Required]
        [Display(Name = "邮箱：")]
        public string Email { get; set; }

        [Required]
        [Display(Name = "密码：")]
        [DataType(DataType.Password)]
        public string Password { get; set; }


        [Required]
        [Display(Name = "确认密码：")]
        [DataType(DataType.Password)]
        [Compare("Password", ErrorMessage = "两次密码不一致！")]
        public string ConfirmPassword { get; set; }
    }

3、在App_Start文件夹下添加类

    public class ApplicationSignInManager : SignInManager<ApplicationUser, string>
    {
        public ApplicationSignInManager(ApplicationUserManager userManager, IAuthenticationManager authenticationManager)
            : base(userManager, authenticationManager)
        {
        }

        public static ApplicationSignInManager Cteate(IdentityFactoryOptions<ApplicationSignInManager> options, IOwinContext context)
        {
            return new ApplicationSignInManager(context.GetUserManager<ApplicationUserManager>(), context.Authentication);
        }
    }

    public class ApplicationUserManager:UserManager<ApplicationUser>
    {

        public ApplicationUserManager(IUserStore<ApplicationUser> store) 
            : base(store)
        {

        }

        public static ApplicationUserManager Create(
            IdentityFactoryOptions<ApplicationUserManager> options
            ,IOwinContext context)
        {
            var manager = new ApplicationUserManager(new UserStore<ApplicationUser>(context.Get<ApplicationDbContext>()));

            return manager;
        }

    }

    public class ApplicationUserStore:UserStore<ApplicationUser>
    {
        public ApplicationUserStore(ApplicationDbContext context) 
            : base(context)
        {

        }
    }

4、创建控制器（然后往Controller文件夹里面添加HomeController控制器，AccountController控制器）

（1）先往HomeController控制器里添加index视图

 index试图代码

@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>
}

（2）、然后AccountController控制器代码

    public class AccountController : Controller
    {

        private ApplicationSignInManager _signInManager;
        private ApplicationUserManager _userManager;

        public AccountController()
        {
        }

        public AccountController(ApplicationUserManager userManager,
            ApplicationSignInManager signInManager)
        {
            UserManager = userManager;
            SignInManager = signInManager;
        }

        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.TextBoxFor(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.TextBoxFor(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>
}

5、项目的根目录添加Startup类

    public class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            app.CreatePerOwinContext<ApplicationDbContext>(ApplicationDbContext.Cteate);
            app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
            app.CreatePerOwinContext<ApplicationSignInManager>(ApplicationSignInManager.Cteate);
            app.UseCookieAuthentication(
                new CookieAuthenticationOptions
                {
                    AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
                    LoginPath = new Microsoft.Owin.PathString("/Account/Login")
                });
        }
    }

6、修改根目录的Web.Config文件

<?xml version="1.0" encoding="utf-8"?>
<!--
  有关如何配置 ASP.NET 应用程序的详细信息，请访问
  https://go.microsoft.com/fwlink/?LinkId=301880
  -->
<configuration>
  <connectionStrings>
    
    <add name="IdentityDemo" providerName="System.Data.SqlClient" connectionString="server=LocalHost;Database=SignTest;User Id=sa;Password=`12qwe;"/>
    
  </connectionStrings>
  
  <appSettings>
    <add key="webpages:Version" value="3.0.0.0" />
    <add key="webpages:Enabled" value="false" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
  </appSettings>
  <system.web>
    <compilation debug="true" targetFramework="4.6.1" />
    <httpRuntime targetFramework="4.6.1" />
  </system.web>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-5.2.4.0" newVersion="5.2.4.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <system.codedom>
    <compilers>
      <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:default /nowarn:1659;1699;1701" />
      <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:default /nowarn:41008 /define:_MYTYPE=&quot;Web&quot; /optionInfer+" />
    </compilers>
  </system.codedom>
  <!--<entityFramework>
    <providers>
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
    </providers>
  </entityFramework>-->
</configuration>

7、最后我们来测试一下看看效果怎么样，如下图