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  • ASP.NET MVC5网站开发用户登录、注销(五)
  • 2020/4/20 11:15:29
  • 本文实例为大家分享了ASP.NET MVC5网站开发用户登录、注销的具体方法,供大家参考,具体内容如下

    一、创建ClaimsIdentity

    ClaimsIdentity(委托基于声明的标识)是在ASP.NET Identity身份认证系统的登录时要用到,我们在UserService中来生成它。

    1、打开IBLL项目InterfaceUserService接口,添加接口方法ClaimsIdentity CreateIdentity(User user, string authenticationType);

    2、打开BLL项目的UserService类,添加CreateIdentity方法的实现代码

    public ClaimsIdentity CreateIdentity(User user, string authenticationType)
     {
     ClaimsIdentity _identity = new ClaimsIdentity(DefaultAuthenticationTypes.ApplicationCookie);
     _identity.AddClaim(new Claim(ClaimTypes.Name, user.UserName));
     _identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, user.UserID.ToString()));
     _identity.AddClaim(new Claim("http://schemas.microsoft.com/accesscontrolservice/2010/07/claims/identityprovider", "ASP.NET Identity"));
     _identity.AddClaim(new Claim("DisplayName", user.DisplayName));
     return _identity;
     }

    二、获取AuthenticationManager(认证管理器)

    打开Ninesky.Web项目 Member区域的UserController,添加AuthenticationManager属性,在HttpContext.GetOwinContext()中获取这个属性。

    #region 属性
     private IAuthenticationManager AuthenticationManager { get { return HttpContext.GetOwinContext().Authentication; } }
     #endregion

    三、创建登录视图模型

    Member区域的模型文件夹添加视图模型

    using System.ComponentModel.DataAnnotations;
    
    namespace Ninesky.Web.Areas.Member.Models
    {
     /// <summary>
     /// 登录模型
     /// <remarks>
     /// 创建:2014.02.16
     /// </remarks>
     /// </summary>
     public class LoginViewModel
     {
     /// <summary>
     /// 用户名
     /// </summary>
     [Required(ErrorMessage = "必填")]
     [StringLength(20, MinimumLength = 4, ErrorMessage = "{2}到{1}个字符")]
     [Display(Name = "用户名")]
     public string UserName { get; set; }
    
     /// <summary>
     /// 密码
     /// </summary>
     [Required(ErrorMessage = "必填")]
     [Display(Name = "密码")]
     [StringLength(20, MinimumLength = 6, ErrorMessage = "{2}到{1}个字符")]
     [DataType(DataType.Password)]
     public string Password { get; set; }
    
     /// <summary>
     /// 记住我
     /// </summary>
     [Display(Name = "记住我")]
     public bool RememberMe { get; set; }
     }
    }
    

    四、创建登录页面

    在UserCcontroller中添加(string returnUrl) action

    /// <summary>
     /// 用户登录
     /// </summary>
     /// <param name="returnUrl">返回Url</param>
     /// <returns></returns>
     public ActionResult Login(string returnUrl)
     {
     return View();
     }

    右键添加强类型视图,模型为LoginViewModel

    @model Ninesky.Web.Areas.Member.Models.LoginViewModel
    
    @{
     ViewBag.Title = "会员登录";
    }
    
    @using (Html.BeginForm()) 
    {
     @Html.AntiForgeryToken()
     
     <div class="form-horizontal">
     <h4>会员登录</h4>
     <hr />
     @Html.ValidationSummary(true)
    
     <div class="form-group">
     @Html.LabelFor(model => model.UserName, new { @class = "control-label col-md-2" })
     <div class="col-md-10">
     @Html.EditorFor(model => model.UserName)
     @Html.ValidationMessageFor(model => model.UserName)
     </div>
     </div>
    
     <div class="form-group">
     @Html.LabelFor(model => model.Password, new { @class = "control-label col-md-2" })
     <div class="col-md-10">
     @Html.EditorFor(model => model.Password)
     @Html.ValidationMessageFor(model => model.Password)
     </div>
     </div>
    
     <div class="form-group">
     @Html.LabelFor(model => model.RememberMe, new { @class = "control-label col-md-2" })
     <div class="col-md-10">
     @Html.EditorFor(model => model.RememberMe)
     @Html.ValidationMessageFor(model => model.RememberMe)
     </div>
     </div>
    
     <div class="form-group">
     <div class="col-md-offset-2 col-md-10">
     <input type="submit" value="登录" class="btn btn-default" />
     </div>
     </div>
     </div>
    }
    
    @section Scripts {
     @Scripts.Render("~/bundles/jqueryval")
    }
    

    效果

    五、创建用户登录处理action

    在UserCcontroller中添加 httppost类型的 Login action中先用ModelState.IsValid看模型验证是否通过,没通过直接返回,通过则检查用户密码是否正确。用户名密码正确用CreateIdentity方法创建标识,然后用SignOut方法清空Cookies,然后用SignIn登录。

    [ValidateAntiForgeryToken]
     [HttpPost]
     public ActionResult Login(LoginViewModel loginViewModel)
     {
     if(ModelState.IsValid)
     {
     var _user = userService.Find(loginViewModel.UserName);
     if (_user == null) ModelState.AddModelError("UserName", "用户名不存在");
     else if (_user.Password == Common.Security.Sha256(loginViewModel.Password))
     {
     var _identity = userService.CreateIdentity(_user, DefaultAuthenticationTypes.ApplicationCookie);
     AuthenticationManager.SignOut(DefaultAuthenticationTypes.ApplicationCookie);
     AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = loginViewModel.RememberMe }, _identity);
     return RedirectToAction("Index", "Home");
     }
     else ModelState.AddModelError("Password", "密码错误");
     }
     return View();
     }
    

    六、修改用户注册代码

    让用户注册成功后直接登录

    七、注销

    在UserCcontroller中添加在Logout action

    /// <summary>
     /// 登出
     /// </summary>
     /// <returns></returns>
     public ActionResult Logout()
     {
     AuthenticationManager.SignOut(DefaultAuthenticationTypes.ApplicationCookie);
     return Redirect(Url.Content("~/"));
     }
    

    本文已被整理到了《ASP.NET MVC网站开发教程》,欢迎大家学习阅读,更多内容还可以参考ASP.NET MVC5网站开发专题学习。

    本文主要是用到了ClaimsIdentity(基于声明的标识)、AuthenticationManager的SignOut、SignIn方法。希望对大家实现用户注册和注销有所帮助。