ASP.NET MVC使用过滤器进行权限控制

1.新建MVC项目

2.找到Models文件夹，新建 LoginCheckFilterAttribute 类

 1  public class LoginCheckFilterAttribute : ActionFilterAttribute
 2     {
 3         public bool IsCheck { get; set; }
 4 
 5         public override void OnActionExecuting(ActionExecutingContext filterContext)
 6         {
 7             base.OnActionExecuting(filterContext);
 8 
 9             if (IsCheck)
10             {
11                 //校验用户是否已经登录
12                 if (filterContext.HttpContext.Session["loginUser"] == null)
13                 {
14                     filterContext.HttpContext.Response.Redirect("/UserLogin/Index");
15                 }
16             }
17 
18             filterContext.HttpContext.Response.Write("开始时间:" + DateTime.Now.ToString() + "<br/>");
19         }
20 
21         public override void OnActionExecuted(ActionExecutedContext filterContext)
22         {
23             base.OnActionExecuted(filterContext);
24             var controllerName = filterContext.RouteData.Values["controller"].ToString();
25             var actionName = filterContext.RouteData.Values["action"].ToString();
26             filterContext.HttpContext.Response.Write("结束时间:" + DateTime.Now.ToString() + "<br/>");
27             filterContext.HttpContext.Response.Write("controller:" + controllerName + ",action:" + actionName);
28         }
29     }
LoginCheckFilterAttribute

3.找到App_Start下的 FilterConfig.cs 添加以下代码

1     public class FilterConfig
2     {
3         public static void RegisterGlobalFilters(GlobalFilterCollection filters)
4         {
5             filters.Add(new HandleErrorAttribute());
6 
7             filters.Add(new LoginCheckFilterAttribute() { IsCheck = true });
8         }
9     }
FilterConfig

4.使用方式

 1 [LoginCheckFilter(IsCheck = false)]
 2     public class UserLoginController : BaseController
 3     {
 4         public UserLoginController()
 5         {
 6             this.IsCheckLogin = false;
 7         }
 8         //
 9         // GET: /UserLogin/
10 
11         [LoginCheckFilter(IsCheck = true)]
12         public ActionResult Index()
13         {
14             return View();
15         }
16     }
UserLoginController

End

1.扩展基类进行权限控制

 1  public class BaseController : Controller
 2     {
 3         //在当前控制器所有方法之前执行，都先执行此代码
 4         public bool IsCheckLogin = true;
 5 
 6         protected override void OnActionExecuting(ActionExecutingContext filterContext)
 7         {
 8             base.OnActionExecuting(filterContext);
 9 
10             if (IsCheckLogin)
11             {
12                 //校验用户是否已经登录
13                 if (filterContext.HttpContext.Session["loginUser"] == null)
14                 {
15                     filterContext.HttpContext.Response.Redirect("/UserLogin/Index");
16                 }
17             }
18         }
19     }
BaseController

2.调用方式

1  public class UserLoginController : BaseController
2     {
3         public UserLoginController()
4         {
5             this.IsCheckLogin = false;
6         }
7     }
UserLoginController

 

posted @ 2016-04-05 11:36  落叶的瞬间;  阅读(395)  评论(0)  编辑  收藏  举报