ASP.NET MVC使用ActionFilterAttribute實(shí)現(xiàn)權(quán)限限制的方法(附demo源碼下載)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using MvcTest.Models;
namespace MvcTest.Controllers
{
  public class HomeController : Controller
  {
    //
    // GET: /Home/
    public ActionResult Index()
    {
      return View();
    }
    [AuthorizeFilter]
    public ActionResult test()
    {
      return Content("有權(quán)訪問");
    }
  }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace MvcTest.Models
{
  /// summary>
  ///　權(quán)限攔截
  /// /summary>
  [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false)]
  public class AuthorizeFilterAttribute : ActionFilterAttribute
  {
    filterContextInfo fcinfo;
    // OnActionExecuted 在執(zhí)行操作方法后由 ASP.NET MVC 框架調(diào)用。
    // OnActionExecuting 在執(zhí)行操作方法之前由 ASP.NET MVC 框架調(diào)用。
    // OnResultExecuted 在執(zhí)行操作結(jié)果后由 ASP.NET MVC 框架調(diào)用。
    // OnResultExecuting 在執(zhí)行操作結(jié)果之前由 ASP.NET MVC 框架調(diào)用。
    /// summary>
    /// 在執(zhí)行操作方法之前由 ASP.NET MVC 框架調(diào)用。
    /// /summary>
    /// param name="filterContext">/param>
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
      fcinfo = new filterContextInfo(filterContext);
      //fcinfo.actionName;//獲取域名
      //fcinfo.controllerName;獲取 controllerName 名稱
      bool isstate = true;
      //islogin = false;
      if (isstate)//如果滿足
      {
        //邏輯代碼
        // filterContext.Result = new HttpUnauthorizedResult();//直接URL輸入的頁面地址跳轉(zhuǎn)到登陸頁 
        // filterContext.Result = new RedirectResult("http://www.baidu.com");//也可以跳到別的站點(diǎn)
        //filterContext.Result = new RedirectToRouteResult(new System.Web.Routing.RouteValueDictionary(new { Controller = "product", action = "Default" }));
      }
      else
      {
        filterContext.Result = new ContentResult { Content = @"抱歉,你不具有當(dāng)前操作的權(quán)限！" };// 直接返回 return Content("抱歉,你不具有當(dāng)前操作的權(quán)限！")
      }
    }
    /// summary>
    /// 在執(zhí)行操作方法后由 ASP.NET MVC 框架調(diào)用。
    /// /summary>
    /// param name="filterContext">/param>
    public override void OnActionExecuted(ActionExecutedContext filterContext)
    {
      base.OnActionExecuted(filterContext);
    }
    /// summary>
    /// OnResultExecuted 在執(zhí)行操作結(jié)果后由 ASP.NET MVC 框架調(diào)用。
    /// /summary>
    /// param name="filterContext">/param>
    public override void OnResultExecuted(ResultExecutedContext filterContext)
    {
      base.OnResultExecuted(filterContext);
    }
    /// summary>
    /// OnResultExecuting 在執(zhí)行操作結(jié)果之前由 ASP.NET MVC 框架調(diào)用。
    /// /summary>
    /// param name="filterContext">/param>
    public override void OnResultExecuting(ResultExecutingContext filterContext)
    {
      base.OnResultExecuting(filterContext);
    }
  }
  public class filterContextInfo
  {
    public filterContextInfo(ActionExecutingContext filterContext)
    {
      #region 獲取鏈接中的字符
      // 獲取域名
      domainName = filterContext.HttpContext.Request.Url.Authority;
      //獲取模塊名稱
      // module = filterContext.HttpContext.Request.Url.Segments[1].Replace('/', ' ').Trim();
      //獲取 controllerName 名稱
      controllerName = filterContext.RouteData.Values["controller"].ToString();
      //獲取ACTION 名稱
      actionName = filterContext.RouteData.Values["action"].ToString();
      #endregion
    }
    /// summary>
    /// 獲取域名
    /// /summary>
    public string domainName { get; set; }
    /// summary>
    /// 獲取模塊名稱
    /// /summary>
    public string module { get; set; }
    /// summary>
    /// 獲取 controllerName 名稱
    /// /summary>
    public string controllerName { get; set; }
    /// summary>
    /// 獲取ACTION 名稱
    /// /summary>
    public string actionName { get; set; }
  }
}