MVC5 网站开发之六管理员一、登陆、验证和注销

using System;
using System.ComponentModel.DataAnnotations;

namespace Ninesky.Core
{
    /// <summary>
    /// 管理员模型
    /// </summary>
    public class Administrator
    {
        [Key]
        public int AdministratorID { get; set; }

        /// <summary>
        /// 账号
        /// </summary>
        [Required(ErrorMessage = "必须输入{0}")]
        [StringLength(30, MinimumLength = 4, ErrorMessage ="{0}长度为{2}-{1}个字符")]
        [Display(Name ="账号")]
        public string Accounts { get; set; }

        /// <summary>
        /// 密码
        /// </summary>

        [DataType(DataType.Password)]
        [Required(ErrorMessage = "必须输入{0}")]
        [StringLength(256,ErrorMessage = "{0}长度少于{1}个字符")]
        [Display(Name = "密码")]
        public string Password { get; set; }

        /// <summary>
        /// 登陆IP
        /// </summary>
        [Display(Name = "登陆IP")]
        public string LoginIP { get; set; }

        /// <summary>
        /// 登陆时间
        /// </summary>
        [Display(Name = "登陆时间")]
        public Nullable<DateTime> LoginTime { get; set; }

        /// <summary>
        /// 建立时间
        /// </summary>
        [Display(Name = "建立时间")]
        public DateTime CreateTime { get; set; }
    }
}

三、数据上下文

打开Ninesky.Core->NineskyContext.cs 添加Administrators属性

红框内为添加内容。

四、AdministratorManager管理类

Ninesky.Core【右键】-> 添加->类，输入类名AdministratorManager。

类继承自BaseManager<Administrator>。

为类添加Ninesky.Core.Types引用。

using Ninesky.Core.Types;
using System;

namespace Ninesky.Core
{
    public class AdministratorManager : BaseManager<Administrator>
    {
        /// <summary>
        /// 添加
        /// </summary>
        /// <param name="admin">管理员实体</param>
        /// <returns></returns>
        public override Response Add(Administrator admin)
        {
            Response _resp = new Response();
            if (HasAccounts(admin.Accounts))
            {
                _resp.Code = 0;
                _resp.Message = "账号已存在";
            }
            else _resp = base.Add(admin);
            return _resp;
        }

        /// <summary>
        /// 修改密码
        /// </summary>
        /// <param name="administratorID">主键</param>
        /// <param name="password">新密码【密文】</param>
        /// <returns></returns>
        public Response ChangePassword(int administratorID, string password)
        {
            Response _resp = new Response();
            var _admin = Find(administratorID);
            if (_admin == null)
            {
                _resp.Code = 0;
                _resp.Message = "该主键的管理员不存在";
            }
            else
            {
                _admin.Password = password;
                _resp = Update(_admin);
            }
            return _resp;
        }

        /// <summary>
        /// 删除
        /// </summary>
        /// <param name="administratorID">主键</param>
        /// <returns></returns>
        public override Response Delete(int administratorID)
        {
            Response _resp = new Response();
            if (Count() == 1)
            {
                _resp.Code = 0;
                _resp.Message = "不能删除惟一的管理员账号";
            }
            else _resp = base.Delete(administratorID);
            return _resp;
        }

        /// <summary>
        /// 查找
        /// </summary>
        /// <param name="accounts">账号</param>
        /// <returns></returns>
        public Administrator Find(string accounts)
        {
            return base.Repository.Find(a => a.Accounts == accounts);
        }

        /// <summary>
        /// 账号是否存在
        /// </summary>
        /// <param name="accounts">账号</param>
        /// <returns></returns>
        public bool HasAccounts(string accounts)
        {
            return base.Repository.IsContains(a => a.Accounts.ToUpper() == accounts.ToUpper());
        }

        /// <summary>
        /// 更新登陆信息
        /// </summary>
        /// <param name="administratorID">主键</param>
        /// <param name="ip">IP地址</param>
        /// <param name="time">时间</param>
        /// <returns></returns>
        public Response UpadateLoginInfo(int administratorID, string ip, DateTime time)
        {
            Response _resp = new Response();
            var _admin = Find(administratorID);
            if (_admin == null)
            {
                _resp.Code = 0;
                _resp.Message = "该主键的管理员不存在";
            }
            else
            {
                _admin.LoginIP = ip;
                _admin.LoginTime = time;
                _resp = Update(_admin);
            }
            return _resp;
        }

        /// <summary>
        /// 验证
        /// </summary>
        /// <param name="accounts">账号</param>
        /// <param name="password">密码【密文】</param>
        /// <returns>Code:1-成功;2-账号不存在;3-密码错误</returns>
        public Response Verify(string accounts, string password)
        {
            Response _resp = new Response();
            var _admin = base.Repository.Find(a => a.Accounts == accounts);
            if (_admin == null)
            {
                _resp.Code = 2;
                _resp.Message = "账号为:【" + accounts + "】的管理员不存在";
            }
            else if (_admin.Password == password)
            {
                _resp.Code = 1;
                _resp.Message = "验证经过";
            }
            else
            {
                _resp.Code = 3;
                _resp.Message = "账号密码错误";
            }
            return _resp;
        }
    }
}

2、展现层实现

首先，添加css。

Ninesky.Web->Content【右键】->添加->试样表,输入名称StyleControl。

打开Ninesky.Web->App_Start->BundleConfig.cs。

添加红框内代码。StyleControl.css具体内容这里省略了。

其次，添加对Ninesky.Core的引用。

Ninesky.Web->引用【右键】->添加引用.。在引用管理器中选择项目->解决方案->Ninesky.Core.

处理完这两项内容就继续具体内容了：

一、管理员身份验证类AdminAuthorizeAttribute

AdminAuthorizeAttribute继承自AuthorizeAttribute，重写AuthorizeCore方法，经过Session["AdminID"]来判断管理员是否已经登陆，重写HandleUnauthorizedRequest方法来处理未登陆时的页面跳转。

using System.Web;
using System.Web.Mvc;

namespace Ninesky.Web.Areas.Control
{
    /// <summary>
    /// 管理员身份验证类
    /// </summary>
    public class AdminAuthorizeAttribute : AuthorizeAttribute
    {
        /// <summary>
        /// 重写自定义受权检查
        /// </summary>
        /// <returns></returns>
        protected override bool AuthorizeCore(HttpContextBase httpContext)
        {
            if (httpContext.Session["AdminID"] == null) return false;
            else return true;
        }
        /// <summary>
        /// 重写未受权的 HTTP 请求处理
        /// </summary>
        protected override void HandleUnauthorizedRequest(AuthorizationContext filterContext)
        {
            filterContext.Result = new RedirectResult("~/Control/Admin/Login");
        }
    }
}

Ninesky.Web->Areas->Control【右键】->添加->类，输入控制器名称HomeController。

为HomeController添加[AdminAuthorize]

二、管理员控制器

Ninesky.Web->Areas->Control->Controllers【右键】->添加->控制器。选择 MVC5 控制器 – 空, 输入控制器名称Admin。

在控制器中引用Ninesky.Core、Ninesky.Core.General和Ninesky.Web.Areas.Control.Models命名空间。

添加私有变量private AdministratorManager adminManager = new AdministratorManager();

为AdminController添加[AdminAuthorize]

3.1 管理员登陆

3.1.1 登陆视图模型

Ninesky.Web->Areas->Control->Models【右键】->添加->类，输入类名LoginViewModel。

namespace Ninesky.Web.Areas.Control.Models
{
    /// <summary>
    /// 登陆模型
    /// </summary>
    public class LoginViewModel
    {
        /// <summary>
        /// 账号
        /// </summary>
        [Required(ErrorMessage = "必须输入{0}")]
        [StringLength(30, MinimumLength = 4, ErrorMessage = "{0}长度为{2}-{1}个字符")]
        [Display(Name = "账号")]
        public string Accounts { get; set; }

        /// <summary>
        /// 密码
        /// </summary>
        [DataType(DataType.Password)]
        [Required(ErrorMessage = "必须输入{0}")]
        [StringLength(20,MinimumLength =6, ErrorMessage = "{0}长度{2}-{1}个字符")]
        [Display(Name = "密码")]
        public string Password { get; set; }
    }
}

3.1.2 登陆方法

在AdminController中添加Login()方法

/// <summary>
        /// 登陆
        /// </summary>
        /// <returns></returns>
        [AllowAnonymous]
        public ActionResult Login()
        {
            return View();
        }

3.1.3 登陆视图

在Login()方法上点【右键】->添加视图

模板选Create，模型类选LoginViewModel ，选项选中引用脚本库。完成后代码

@model Ninesky.Web.Areas.Control.Models.LoginViewModel

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>登陆</title>
    @Styles.Render("~/Content/controlcss")
    @Scripts.Render("~/bundles/modernizr")
</head>
<body>
    @Scripts.Render("~/bundles/jquery")
    @Scripts.Render("~/bundles/jqueryval")

    <div class="loginform">


        <div class="form-horizontal">
            <h2 class="text-primary">登陆</h2>
            @using (Html.BeginForm())
            {
                @Html.AntiForgeryToken()
                @Html.ValidationSummary(true, "", new { @class = "text-danger" })
                <div class="form-group form-group-lg">
                    @Html.EditorFor(model => model.Accounts, new { htmlAttributes = new { @class = "form-control", placeholder = "账号" } })
                    @Html.ValidationMessageFor(model => model.Accounts, "", new { @class = "text-danger" })
                </div>
                <div class="form-group form-group-lg">
                    @Html.EditorFor(model => model.Password, new { htmlAttributes = new { @class = "form-control", placeholder = "密码" } })
                    @Html.ValidationMessageFor(model => model.Password, "", new { @class = "text-danger" })
                </div>
                <div class="form-group form-group-lg">
                    <input type="submit" value="登陆" class="btn btn-default pull-right" />
                </div>
            }
        </div>

    </div>
</body>
</html>

在AdminController中添加登陆的处理方法public ActionResult Login(LoginViewModel loginViewModel)

[AllowAnonymous]
        [ValidateAntiForgeryToken]
        [HttpPost]
        public ActionResult Login(LoginViewModel loginViewModel)
        {
            if(ModelState.IsValid)
            {
                string _passowrd = Security.SHA256(loginViewModel.Password);
                var _response = adminManager.Verify(loginViewModel.Accounts, _passowrd);
                if (_response.Code == 1)
                {
                    var _admin = adminManager.Find(loginViewModel.Accounts);
                    Session.Add("AdminID", _admin.AdministratorID);
                    Session.Add("Accounts", _admin.Accounts);
                    _admin.LoginTime = DateTime.Now;
                    _admin.LoginIP = Request.UserHostAddress;
                    adminManager.Update(_admin);
                    return RedirectToAction("Index", "Home");
                }
                else if (_response.Code == 2) ModelState.AddModelError("Accounts", _response.Message);
                else if (_response.Code == 3) ModelState.AddModelError("Password", _response.Message);
                else ModelState.AddModelError("",_response.Message);
            }
            return View(loginViewModel);
        }

四、注销

在AdminController中添加注销的处理方法public ActionResult Logout（)

/// <summary>
        /// 注销
        /// </summary>
        /// <returns></returns>
        public ActionResult Logout()
        {
            Session.Clear();
            return RedirectToAction("Login");
        }

完工能够按F5测试了。

登陆界面，输入账号mzwhj 密码123456，登陆成功。

登陆成功界面。

=====================================================

代码见：https://ninesky.codeplex.com/SourceControl/latest

代码下载：https://ninesky.codeplex.com 点击SOURCE CODE 点击Download下载源文件。

MVC5 网站开发之六 管理员 一、登陆、验证和注销

上次业务逻辑和展现层的架构都写了，能够开始进行具体功能的实现，此次先实现管理员的登陆、验证和注销功能。

1、业务逻辑层

一、实现256散列加密方法。

二、Administrator模型类