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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>
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"); } }
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> }
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】
/// <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);
【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; }
登录状态:
验证:
正确登录:
登录成功:
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