【C#】【Demo】.net的mvc过滤器，ip限制

using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace CommonUtil
{
    /// <summary>
    /// .net的mvc过滤器
    /// ip限制
    /// 使用：
    /// [MvcIPAuth]
    /// public class ApiZanController : Controller
    /// </summary>
    public class MvcIPAuth : AuthorizeAttribute
    {
        /// <summary>
        /// 允许访问的ip<add key="IPS_Zan" value="*.***.**.**,***.*.*.*" />
        /// </summary>
        private static List<string> IPS_Zan= (ConfigurationHelper.AppSetting("IPS_Zan")??"").Split(',').ToList();
        protected override bool AuthorizeCore(HttpContextBase httpContext)
        {
            //获取请求客户端的ip
            var ip=HttpHelper.GetClientIp();
            return IPS_Zan.Exists(x=>x==ip);
        }

        protected override void HandleUnauthorizedRequest(AuthorizationContext filterContext)
        {
            JsonResult data = new JsonResult();
            data.Data = "{\"msg\":\"该IP不允许请求接口\"}";
            data.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
            filterContext.Result = data;

        }
    }
}