学用MVC4做网站六后台管理:6.1管理员(续)

using System.ComponentModel.DataAnnotations;

namespace Ninesky.Areas.Admin.Models
{
/// <summary>
/// 管理员模型
/// </summary>
public class Administrator
{
[Key]
public int AdministratorId { get; set; }
[Display(Name = "系统账号")]
[Required(ErrorMessage = "×")]
public bool IsPreset { get; set; }
[Display(Name="用户名",Description="（必填） 4-20个字符。")]
[Required(ErrorMessage="×")]
[StringLength(20,MinimumLength=4,ErrorMessage="×")]
public string AdminName { get; set; }
[Display(Name = "密码", Description = "（必填） 6-20个字符。")]
[Required(ErrorMessage = "×")]
[StringLength(256, MinimumLength = 6, ErrorMessage = "×")]
public string PassWord { get; set; }
[Display(Name = "姓名", Description = "填写姓名可以更容易识别管理员。")]
[StringLength(20, ErrorMessage = "×")]
public string Name { get; set; }
[Display(Name = "电子邮件", Description = "（必填） 不多于255个字符。")]
[Required(ErrorMessage = "×")]
[EmailAddress()]
[StringLength(256, ErrorMessage = "×")]
public string Email { get; set; }
}
}

using Ninesky.Areas.Admin.Models;
using System.Collections.Generic;

namespace Ninesky.Areas.Admin.Repository
{
public interface IAdministrator
{
/// <summary>
/// 添加管理员
/// </summary>
/// <param name="admin">管理员</param>
/// <returns></returns>
bool Add(Administrator admin);
/// <summary>
/// 更改管理员信息
/// </summary>
/// <param name="admin">管理员</param>
bool Modify(Administrator admin);
/// <summary>
/// 删除管理员
/// </summary>
/// <param name="adminId">管理员Id</param>
bool Delete(int adminId);
/// <summary>
/// 删除管理员
/// </summary>
/// <param name="admin">管理员</param>
bool Delete(Administrator admin);
/// <summary>
/// 验证管理员账号、密码【返回值-1此管理员不存在，0密码错误，1验证通过】
/// </summary>
/// <param name="adminName">用户名</param>
/// <param name="passWord">密码【加密】</param>
int Authentication(string userName, string passWord);
/// <summary>
/// 查找管理员
/// </summary>
/// <param name="adminId">管理员Id</param>
Administrator Find(int adminId);
/// <summary>
/// 查找管理员
/// </summary>
/// <param name="adminName">管理员名称</param>
/// <returns></returns>
Administrator Find(string adminName);
/// <summary>
/// 查找全部管理员
/// </summary>
List<Administrator> Find();
}
}

using Ninesky.Areas.Admin.Models;
using Ninesky.Repository;
using System.Collections.Generic;
using System.Linq;

namespace Ninesky.Areas.Admin.Repository
{
public class AdministratorRepository:IAdministrator
{
private NineskyContext db;
public bool Add(Administrator admin)
{
using (db = new NineskyContext())
{
if (db.Administrators.Any(a => a.AdminName == admin.AdminName)) return false;
db.Administrators.Add(admin);
return db.SaveChanges() > 0;
}

}
public int Authentication(string adminName, string passWord)
{
using (db = new NineskyContext())
{
if (db.Administrators.Any(a => a.AdminName == adminName))
{
var _admin = db.Administrators.SingleOrDefault(a => a.AdminName == adminName);
if (_admin.PassWord == passWord) return 1;
else return 0;
}
else return -1;
}
}
public bool Delete(int adminId)
{
using (db = new NineskyContext())
{
db.Administrators.Remove(db.Administrators.SingleOrDefault(a => a.AdministratorId == adminId));
return db.SaveChanges() > 0;
}
}
public bool Delete(Administrator admin)
{
using (db = new NineskyContext())
{
db.Administrators.Remove(admin);
return db.SaveChanges() > 0;
}
}
public Administrator Find(int adminId)
{
using (db = new NineskyContext())
{
return db.Administrators.SingleOrDefault(a => a.AdministratorId == adminId);
}
}
public Administrator Find(string adminName)
{
using (db = new NineskyContext())
{
return db.Administrators.SingleOrDefault(a => a.AdminName == adminName);
}
}
public List<Administrator> Find()
{
using (db = new NineskyContext())
{
return db.Administrators.ToList();
}
}
public bool Modify(Administrator admin)
{
using (db = new NineskyContext())
{
db.Administrators.Attach(admin);
db.Entry<Administrator>(admin).State = System.Data.EntityState.Modified;
return db.SaveChanges() > 0;
}
}
}
}

using Ninesky.Areas.Admin.Extensions;
using Ninesky.Areas.Admin.Models;
using Ninesky.Areas.Admin.Repository;
using Ninesky.Models;
using System.Linq;
using System.Web.Mvc;

namespace Ninesky.Areas.Admin.Controllers
{
public class AdministratorController : Controller
{
private IAdministrator adminRsy;
public AdministratorController()
{
adminRsy = new AdministratorRepository();
}

}

}

#region 静态属性
/// <summary>
/// 管理员登录名
/// </summary>
public static string AdminName
{
get
{
string _adminName = string.Empty;
if (System.Web.HttpContext.Current.Session["AdminName"] != null) _adminName = System.Web.HttpContext.Current.Session["AdminName"].ToString();
return _adminName;
}
set
{
if (string.IsNullOrEmpty(value)) System.Web.HttpContext.Current.Session.Remove("AdminName");
else
{
System.Web.HttpContext.Current.Session.Timeout = 60;
System.Web.HttpContext.Current.Session.Add("AdminName", value);
}
}
}
/// <summary>
/// 管理员信息
/// </summary>
public static Administrator AdminInfo
{
get
{
AdministratorRepository _adminRsy = new AdministratorRepository();
return _adminRsy.Find(AdministratorController.AdminName);
}
}
#endregion
}

using Ninesky.Areas.Admin.Controllers;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;

namespace Ninesky.Areas.Admin.Extensions
{
/// <summary>
///  管理员权限验证
/// </summary>
public class AdminAuthorizeAttribute:AuthorizeAttribute
{
protected override bool AuthorizeCore(HttpContextBase httpContext)
{
if (string.IsNullOrEmpty(AdministratorController.AdminName)) return false;
else return true;
}
protected override void HandleUnauthorizedRequest(AuthorizationContext filterContext)
{
filterContext.Result = new RedirectToRouteResult("Admin_default", new RouteValueDictionary(new { controller = "Administrator", action = "Login" }));
}
}
}