MVC + 三层 + ASP.NET 简单登陆验证

 通过制作一个登陆小案例搭建 MVC + 三层

【VIEWS】--【Shared】下创建一个母版页： _LoginPartial.cshtml

    
    
    
    
    
    
    


    

        

            User Management System
        
    


    @if (Request.IsAuthenticated)  //如果登陆成功
    {
        
            

                

                    
@Html.ActionLink("Home", "Index", "Home")
 //主页
                    
@Html.ActionLink("Log Out", "LogOut", "Account")
    //导航栏添加一个  log Out  选项                
                
            
            
Current ID: @Context.User.Identity.Name 
  //获取当前登录用户
        
    }
    else  // 未登录状态
    {
        
            

                

                    
@Html.ActionLink("Home", "Index", "Home")
  //主页
                    
@Html.ActionLink("Log In", "login", "Account")
   //登陆选项                
                
            
            Pls login first!  //提示需要先登录
        
    }

   
    

        @RenderBody()
    

  注意：需要使用Request.IsAuthenticated 身份验证，需要在Web.Config 下添加如下代码

  

控制器：  AccountController.cs

public class AccountController : Controller
    {
        // GET: Account
        public ActionResult Index()
        {
            return View();
        }

        public ActionResult Login()
        {
            return View();
        }

        [HttpPost]
        public ActionResult Login(AccountEntity account)
        {
            if (new Bll.AccountManageBll().LoginCheck(account))
            {
                FormsAuthentication.SetAuthCookie(account.LogID, true);
                return RedirectToAction("Index", "Home");
            }
            else
            {
                ViewBag.msg = "LogID or Password error.";
                return View();
            }
        }

        public ActionResult LogOut()
        {
            FormsAuthentication.SignOut();
            return RedirectToAction("Index","Home");
        }
    }

视图：【Views】--【Account】 Login.cshtml

@using Model
@model AccountEntity
@{
    ViewBag.Title = "Login";
    Layout = "~/Views/Shared/_LoginPartial.cshtml";
}







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

        

            

                Log In
            
            

            

                
Login ID   @Html.TextBoxFor(u => u.LogID)
                
@Html.ValidationMessageFor(u => u.LogID, "", new { style = "color:#F00;font-size:10px" })
            
            

                
Password  @Html.PasswordFor(u => u.Password)
                
@Html.ValidationMessageFor(u => u.Password, "", new { style = "color:#F00;font-size:10px" })
  //校验不能为空
            
            

                
            
        
    
        

            

            @ViewBag.msg

        
}

实体：【Model】层新建一个 AccountEntity  实体模型

    public class AccountEntity
    {
        [Required(ErrorMessage ="LogID cann't be empty!")] //Required 验证
        public string LogID { get; set; }

        [Required(ErrorMessage = "Password cann't be empty!")]   //Required 验证
        public string Password { get; set; }

        public AccountEntity() { } //无参构造函数
        public AccountEntity(string ID,string Pwd)  //有参构造函数 为了测试数据
        {
            LogID = ID;
            Password = Pwd;
        }
    }

【DAL】数据访问层  AccountServiceDal.cs   

【使用数据库才需要使用  本实例测试数据在BLL层】

        /// 

        /// 获取用户信息
        /// 
        /// 
        public List GetAccountInfo()
        {
            string sqlStr = @"ProcSelAccount";  //存储过程名
            List accountList = new List();

            using (SqlDataReader reader = SqlHelper.ExecReader(sqlStr))   //SqlHelper： SQL帮助类
            {
                while (reader.Read())
                {
                    AccountEntity account = BuildSubject(reader);
                    accountList.Add(account);
                }
            }
            return accountList;
        }

        public AccountEntity BuildSubject(SqlDataReader reader)
        {
            AccountEntity account = new AccountEntity();
            account.LogID = reader.GetString(0);
            account.Password = reader.GetString(1);
           

【BLL】业务逻辑层 AccountManageBll.cs

        public bool LoginCheck(AccountEntity account)
        {
            bool flag = false;
            // List accountList = new AccountServiceDal().GetAccountInfo();   //校验数据库中用户数据，需使用此代码

            //Test Account Data
            List accountList = new List()  //增加两条用户数据
            {
                new AccountEntity("Jarvis","ABC123"),   
                new AccountEntity("Admin","admin123")
            };

            foreach (AccountEntity accountInfo in accountList)
            {
                if(accountInfo.LogID == account.LogID && accountInfo.Password == account.Password)
                {
                    flag = true;
                }
            }
            return flag;
        }

最终测试实现：

1.未登录状态

2. 验证

3.正确登陆

4.登陆成功

作为初学者，纯分享一些小案例，有不足之处还望高人指点迷津。