1.新建MVC项目
2.找到Models文件夹，新建 LoginCheckFilterAttribute 类
public class LoginCheckFilterAttribute : ActionFilterAttribute
{
public bool IsCheck { get; set; } public override void OnActionExecuting(ActionExecutingContext filterContext)
{
base.OnActionExecuting(filterContext); if (IsCheck)
{
//校验用户是否已经登录
if (filterContext.HttpContext.Session["loginUser"] == null)
{
filterContext.HttpContext.Response.Redirect("/UserLogin/Index");
}
} filterContext.HttpContext.Response.Write("开始时间:" + DateTime.Now.ToString() + "<br/>");
} public override void OnActionExecuted(ActionExecutedContext filterContext)
{
base.OnActionExecuted(filterContext);
var controllerName = filterContext.RouteData.Values["controller"].ToString();
var actionName = filterContext.RouteData.Values["action"].ToString();
filterContext.HttpContext.Response.Write("结束时间:" + DateTime.Now.ToString() + "<br/>");
filterContext.HttpContext.Response.Write("controller:" + controllerName + ",action:" + actionName);
}
}
LoginCheckFilterAttribute
3.找到App_Start下的 FilterConfig.cs 添加以下代码
public class FilterConfig
{
public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
filters.Add(new HandleErrorAttribute()); filters.Add(new LoginCheckFilterAttribute() { IsCheck = true });
}
}
FilterConfig
4.使用方式
[LoginCheckFilter(IsCheck = false)]
public class UserLoginController : BaseController
{
public UserLoginController()
{
this.IsCheckLogin = false;
}
//
// GET: /UserLogin/ [LoginCheckFilter(IsCheck = true)]
public ActionResult Index()
{
return View();
}
}
UserLoginController
End
1.扩展基类进行权限控制
public class BaseController : Controller
{
//在当前控制器所有方法之前执行，都先执行此代码
public bool IsCheckLogin = true; protected override void OnActionExecuting(ActionExecutingContext filterContext)
{
base.OnActionExecuting(filterContext); if (IsCheckLogin)
{
//校验用户是否已经登录
if (filterContext.HttpContext.Session["loginUser"] == null)
{
filterContext.HttpContext.Response.Redirect("/UserLogin/Index");
}
}
}
}
BaseController
2.调用方式
public class UserLoginController : BaseController
{
public UserLoginController()
{
this.IsCheckLogin = false;
}
}
UserLoginController