Asp.net MVC通过自定义特性实现Action日志记录

一、自定义特性

/// <summary>
    /// 描述特性
    /// </summary>
    [AttributeUsage(AttributeTargets.Method)]
    public sealed class DescribeAttribute : Attribute
    {
        private string _funDescribe;

        public DescribeAttribute() { }

        public DescribeAttribute(string funDescribe)
        {
            this._funDescribe = funDescribe;
        }

        public string FunDescribe
        {
            get { return _funDescribe; }
        }
    }

二、在Action上面加入特性

[Describe("系统主页面")]
        public ActionResult Index()
        {
            return View();
        }

三、继承ActionFilterAttribute实现LogFilter日志

public sealed class LogFilter : ActionFilterAttribute
    {
        public override void OnActionExecuted(ActionExecutedContext filterContext)
        {
            if (filterContext == null)
            {
                throw new ArgumentNullException(nameof(filterContext));
            }

            object[] attrs = filterContext.ActionDescriptor.GetCustomAttributes(typeof(DescribeAttribute), false);
            if (attrs.Length > 0)
            {
                string funDescribe = ((DescribeAttribute)attrs[0]).FunDescribe;
            }
            base.OnActionExecuted(filterContext);
        }
    }

四、在App_Start文件夹下面加入全局日志过滤器

public class FilterConfig
    {
        public static void RegisterGlobalFilters(GlobalFilterCollection filters)
        {
            filters.Add(new AuthorizeAttribute());
            filters.Add(new HandleErrorAttribute());
            filters.Add(new LogFilter());
        }
    }