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511  人参与 | 时间:2018-01-26 | 我要评论

通过制作一个登录小案例来搭建MVC简单三层

在View --Shared下创建一个母版页:

<!DOCTYPE html>  
  
<html>  
<head>  
    <meta name="viewport" content="width=device-width" />  
    <script src="~/Scripts/jquery-1.10.2.min.js"></script>  
    <script src="~/Scripts/jquery.validate.min.js"></script>  
    <script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script>  
    <link href="~/Content/LogIn.css" rel="stylesheet" />  
    <style type="text/css">  
        * {  
            margin: 0;  
            padding: 0;  
        }  
  
        .nav {  
            border: 2px solid border-right:none;  
            overflow: hidden;  
            float: center;  
        }  
  
            .nav ul li {  
                float: left;  
                width: 130px;  
                height: 20px;  
            }  
  
                .nav ul li a {  
                    width: 150px;  
                    height: 30px;  
                    text-align: center;  
                    line-height: 28px;  
                    display: block;  
                    border-right: 2px solid #FFFFFF;  
                    color: #FFF;  
                    width: 150px;  
                    font-weight: bold;  
                }  
  
                    .nav ul li a:hover {  
                        font-weight: bold;  
                        color: #FFFFFF;  
                    }  
  
                .nav ul li ul {  
                    position: absolute;  
                    display: none;  
                }  
  
                    .nav ul li ul li {  
                        float: none;  
                    }  
  
                        .nav ul li ul li a {  
                            width: 150px;  
                            height: 40px;  
                            border-right: none;  
                            border-top: 1px dotted #FFFFFF;  
                            background: #cc6698;  
                        }  
  
                .nav ul li:hover ul {  
                    display: block;  
                }  
  
        .barStyle {  
            color: #FFFFFF;  
            font-weight: bold;  
        }  
  
        .style1 {  
            text-align: center;  
            font-family: "Meiryo UI";  
            font-size: x-large;  
        }  
    </style>  
    <title>@ViewBag.Title</title>  
</head>  
<body>  
    <div id="header" style="background: #a6154c; width: 100%; height: 80px">  
        <p style="color: #ffffff; padding: 23px" class="style1">  
            <strong>User Management System</strong>  
        </p>  
    </div>  
  
  
    @if (Request.IsAuthenticated) <span style="color:#ff6600;"> //如果登陆成功</span>  
    {  
        <center>  
            <div class="nav" style="background: #a6154c; width: 100%; height: 30px">  
                <ul>  
                    <li>@Html.ActionLink("Home", "Index", "Home")</li> //主页  
                    <li>@Html.ActionLink("Log Out", "LogOut", "Account")</li>    //导航栏添加一个  log Out  选项                  
                </ul>  
            </div>  
            <div><span>Current ID: @Context.User.Identity.Name</span> </div>  <span style="color:#ff6600;">//获取当前登录用户</span>  
        </center>  
    }  
    else  <span style="color:#ff6600;">// 未登录状态</span>  
    {  
        <center>  
            <div class="nav" style="background: #a6154c; width: 100%; height: 30px">  
                <ul>  
                    <li>@Html.ActionLink("Home", "Index", "Home")</li>  //主页  
                    <li>@Html.ActionLink("Log In", "login", "Account")</li>   //登陆选项                  
                </ul>  
            </div>  
            <b>Pls login first!</b>  //提示需要先登录  
        </center>  
    }  
  
     
    <div>  
        @RenderBody()  
    </div>  
</body>  
</html>  
母版页

 

注意:需要使用Request.IsAuthenticated身份验证,记得在Web.config下添加如下代码

<authentication mode="Forms">  
      <forms loginUrl="~/Account/Login" protection="All" timeout="60" path="/" />  
</authentication> 

接下来是控制器: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");  
        }  
    }  
AccountController.cs

 

视图:View--Account--Login.cshtml

@using Model  
@model AccountEntity  
@{  
    ViewBag.Title = "Login";  
    Layout = "~/Views/Shared/_LoginPartial.cshtml";  
}  
  
<br />  
<br />  
<br />  
@using (Html.BeginForm("Login", "Account", FormMethod.Post))  
{  
    <div class="full">  
        <div class="box">  
            <div class="title">  
                <span class="titlespan"><b>Log In</b></span>  
            </div>  
            <br />  
            <div class="ID">  
                <div><span>Login ID  </span> @Html.TextBoxFor(u => u.LogID)</div>  
                <div>@Html.ValidationMessageFor(u => u.LogID, "", new { style = "color:#F00;font-size:10px" })</div>  
            </div>  
            <div class="password">  
                <div><span>Password  </span>@Html.PasswordFor(u => u.Password)</div>  
                <div>@Html.ValidationMessageFor(u => u.Password, "", new { style = "color:#F00;font-size:10px" })</div> <span style="color:#ff6600;"> //校验不能为空</span>  
            </div>  
            <div class="btnLogin">  
                <input type="Submit" name="Submit" value="Log In">  
            </div>  
        </div>  
    </div>  
        <div class="full">  
            <br />  
            <span style="color:#F00;font-size:12px;font-weight:bold">@ViewBag.msg</span><br />  
        </div>  
}  
Login.cshtml

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;  
    }  
} 
AccountEntity

【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】

/// <summary>  
/// 获取用户信息  
/// </summary>  
/// <returns></returns>  
public List<AccountEntity> GetAccountInfo()  
{  
    string sqlStr = @"ProcSelAccount";  //存储过程名  
    List<AccountEntity> accountList = new List<AccountEntity>();  
  
    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);  
AccountServiceDal.cs

【BLL业务逻辑层】AccountManagerBLL.cs

public bool LoginCheck(AccountEntity account)  
{  
    bool flag = false;  
    // List<AccountEntity> accountList = new AccountServiceDal().GetAccountInfo();   //校验数据库中用户数据,需使用此代码  
  
    <span style="color:#ff0000;">//Test Account Data</span>  
    List<AccountEntity> accountList = new List<AccountEntity>()  //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;  
}  
AccountManagerBLL.cs

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