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本篇內容介紹了“如何編寫ASP.NET MVC5網站開發用戶登錄、注銷”的有關知識,在實際案例的操作過程中,不少人都會遇到這樣的困境,接下來就讓小編帶領大家學習一下如何處理這些情況吧!希望大家仔細閱讀,能夠學有所成!
一、創建ClaimsIdentity
ClaimsIdentity(委托基于聲明的標識)是在ASP.NET Identity身份認證系統的登錄時要用到,我們在UserService中來生成它。
1、打開IBLL項目InterfaceUserService接口,添加接口方法ClaimsIdentity CreateIdentity(User user, string authenticationType);
2、打開BLL項目的UserService類,添加CreateIdentity方法的實現代碼
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、獲取AuthenticationManager(認證管理器)
打開Ninesky.Web項目 Member區域的UserController,添加AuthenticationManager屬性,在HttpContext.GetOwinContext()中獲取這個屬性。
#region 屬性 private IAuthenticationManager AuthenticationManager { get { return HttpContext.GetOwinContext().Authentication; } } #endregion
三、創建登錄視圖模型
Member區域的模型文件夾添加視圖模型
using System.ComponentModel.DataAnnotations; namespace Ninesky.Web.Areas.Member.Models { /// <summary> /// 登錄模型 /// <remarks> /// 創建:2014.02.16 /// </remarks> /// </summary> public class LoginViewModel { /// <summary> /// 用戶名 /// </summary> [Required(ErrorMessage = "必填")] [StringLength(20, MinimumLength = 4, ErrorMessage = "{2}到{1}個字符")] [Display(Name = "用戶名")] public string UserName { get; set; } /// <summary> /// 密碼 /// </summary> [Required(ErrorMessage = "必填")] [Display(Name = "密碼")] [StringLength(20, MinimumLength = 6, ErrorMessage = "{2}到{1}個字符")] [DataType(DataType.Password)] public string Password { get; set; } /// <summary> /// 記住我 /// </summary> [Display(Name = "記住我")] public bool RememberMe { get; set; } } }
四、創建登錄頁面
在UserCcontroller中添加(string returnUrl) action
/// <summary> /// 用戶登錄 /// </summary> /// <param name="returnUrl">返回Url</param> /// <returns></returns> public ActionResult Login(string returnUrl) { return View(); }
右鍵添加強類型視圖,模型為LoginViewModel
@model Ninesky.Web.Areas.Member.Models.LoginViewModel @{ ViewBag.Title = "會員登錄"; } @using (Html.BeginForm()) { @Html.AntiForgeryToken() <div class="form-horizontal"> <h5>會員登錄</h5> <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="登錄" class="btn btn-default" /> </div> </div> </div> } @section Scripts { @Scripts.Render("~/bundles/jqueryval") }
效果
五、創建用戶登錄處理action
在UserCcontroller中添加 httppost類型的 Login action中先用ModelState.IsValid看模型驗證是否通過,沒通過直接返回,通過則檢查用戶密碼是否正確。用戶名密碼正確用CreateIdentity方法創建標識,然后用SignOut方法清空Cookies,然后用SignIn登錄。
[ValidateAntiForgeryToken] [HttpPost] public ActionResult Login(LoginViewModel loginViewModel) { if(ModelState.IsValid) { var _user = userService.Find(loginViewModel.UserName); if (_user == null) ModelState.AddModelError("UserName", "用戶名不存在"); 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", "密碼錯誤"); } return View(); }
六、修改用戶注冊代碼
讓用戶注冊成功后直接登錄
七、注銷
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("~/")); }
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