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  • 框架技术细节

    1.全局异常判别

    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = false)]
        public class EwHandleErrorAttribute : HandleErrorAttribute
        {
            public override void OnException(ExceptionContext filterContext)
            {
                if (ICTConfiguration.Debug)
                {
                    base.OnException(filterContext);
                    return;
                }
    
                if (filterContext.ExceptionHandled)
                {
                    return;
                }
                if (filterContext.HttpContext.Response.IsRequestBeingRedirected)
                {
                    return;
                }
                var httpCode = new HttpException(null, filterContext.Exception).GetHttpCode();
                if (!ExceptionType.IsInstanceOfType(filterContext.Exception))
                {
                    return;
                }
                if (new HttpException(null, filterContext.Exception).GetHttpCode() != 500)
                {
                    return;
                }
                ExceptionHelper.LogException(filterContext.Exception, HttpContext.Current);
                bool isAjaxCall = string.Equals("XMLHttpRequest", filterContext.HttpContext.Request.Headers["x-requested-with"],
                                           StringComparison.OrdinalIgnoreCase);
                if (isAjaxCall)
                {
                    string message = filterContext.Exception.Message;
                    if (filterContext.Exception is HttpRequestValidationException)
                    {
                        message = "包含非法字符";
                    }
    
                    filterContext.Result = new JsonResult()
                    {
                        JsonRequestBehavior = JsonRequestBehavior.AllowGet,
                        Data = new
                        {
                            succeed = false,
                            ret = httpCode,
                            msg = message
                        }
                    };
                }
                else
                {
                    var controllerName = (string)filterContext.RouteData.Values["controller"];
                    var actionName = (string)filterContext.RouteData.Values["action"];
                    var model = new HandleErrorInfo(filterContext.Exception, controllerName, actionName);
                    filterContext.Result = new ViewResult()
                     {
                         ViewName = View,
                         MasterName = Master,
                         ViewData = new ViewDataDictionary(model),
                         TempData = filterContext.Controller.TempData
                     };
                    filterContext.HttpContext.Response.Redirect("/500.html");
                }
                filterContext.ExceptionHandled = true;
                filterContext.HttpContext.Response.Clear();
                filterContext.HttpContext.Response.TrySkipIisCustomErrors = true;
                filterContext.HttpContext.Server.ClearError();
            }
        }

    2.判别当前注册用户是否加入企业(包括是否登录):过滤器

        [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = false)]
        public class JoinEnterpriseAttribute : TokenAuthorizeAttribute
        {
            public WorkContext WorkContext
            {
                get
                {
                    var workContext = (WorkContext)System.Web.HttpContext.Current.Items["__current__workcontext"];
                    if (workContext == null)
                    {
                        workContext = new WorkContext();
                        System.Web.HttpContext.Current.Items["__current__workcontext"] = workContext;
                    }
                    return workContext;
                }
            }
    
            public override void OnAuthorization(System.Web.Mvc.AuthorizationContext filterContext)
            {
                base.OnAuthorization(filterContext);
                if (!filterContext.HttpContext.Response.IsRequestBeingRedirected)
                {
                    var entAuths = (EntAuthAttribute[])filterContext.ActionDescriptor.GetCustomAttributes(typeof(EntAuthAttribute), false);
                    var centAuths = filterContext.ActionDescriptor.ControllerDescriptor.GetCustomAttributes(typeof(EntAuthAttribute), true);
                    if (entAuths.Length == 0 && centAuths.Length == 0)
                    {
                        if (WorkContext != null && WorkContext.UserInfo != null && (WorkContext.CompanyId == 0 || string.IsNullOrWhiteSpace(WorkContext.UserInfo.Name)))
                        {
                            filterContext.HttpContext.Response.Redirect("/auth", true);
                        }
                    }
                }
            }
    
        }
     [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = false)]
        public class TokenAuthorizeAttribute : AuthorizeAttribute
        {
            public WorkContext WorkContext
            {
                get
                {
                    var workContext = (WorkContext)System.Web.HttpContext.Current.Items["__current__workcontext"];
                    if (workContext == null)
                    {
                        workContext = new WorkContext();
                        System.Web.HttpContext.Current.Items["__current__workcontext"] = workContext;
                    }
                    return workContext;
                }
            }
    
            public override void OnAuthorization(System.Web.Mvc.AuthorizationContext filterContext)
            {
                if (WorkContext == null || WorkContext.UserInfo == null || WorkContext.UserInfo.UserID == 0)
                {
                    if (filterContext == null)
                    {
                        throw new ArgumentNullException("filterContext");
                    }
                    if (filterContext.HttpContext.Request.IsAjaxRequest())
                    {
                        filterContext.HttpContext.Response.StatusCode = 401;
                        string strUrl = ConfigurationManager.AppSettings.Get("PassportDoMain");
                        if (filterContext.HttpContext.Request.Url != null)
                        {
                            string path = filterContext.HttpContext.Request.Url.ParserUrl();
                            strUrl += "?returnUrl=" + path;
                        }
                        filterContext.Result = Ajax.Json(new { succeed = false, ret = 401, url = strUrl }, JsonRequestBehavior.AllowGet);
                        return;
                    }
                    if (filterContext.HttpContext.Request.Url != null)
                    {
                        string path = filterContext.HttpContext.Request.Url.ParserUrl();
                        string strUrl = ConfigurationManager.AppSettings.Get("PassportDoMain") + "?returnUrl={0}";
                        filterContext.HttpContext.Response.Redirect(string.Format(strUrl, HttpUtility.UrlEncode(path)), true);
                        filterContext.HttpContext.Response.End();
                    }
                }
            }
    
        }

     3.AUTOMAPPER 

     public static class AutoMapperExtension
        {
            /// <summary>
            ///  类型映射
            /// </summary>
            public static T MapperTo<T>(this object obj)
            {
                if (obj == null) return default(T);
                Mapper.CreateMap(obj.GetType(), typeof(T));
                return Mapper.Map<T>(obj);
            }
    
            /// <summary>
            /// 集合列表类型映射
            /// </summary>
            public static List<TDestination> MapperToToList<TDestination>(this IEnumerable source)
            {
                foreach (var first in source)
                {
                    var type = first.GetType();
                    Mapper.CreateMap(type, typeof(TDestination));
                    break;
                }
                return Mapper.Map<List<TDestination>>(source);
            }
    
            /// <summary>
            /// 集合列表类型映射
            /// </summary>
            public static List<TDestination> MapperToToList<TSource, TDestination>(this IEnumerable<TSource> source)
            {
                Mapper.CreateMap<TSource, TDestination>();
                return Mapper.Map<List<TDestination>>(source);
            }
    
            /// <summary>
            /// 类型映射
            /// </summary>
            public static TDestination MapperTo<TSource, TDestination>(this TSource source, TDestination destination)
                where TSource : class
                where TDestination : class
            {
                if (source == null) return destination;
                Mapper.CreateMap<TSource, TDestination>();
                return Mapper.Map(source, destination);
            }
        }
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  • 原文地址:https://www.cnblogs.com/kingCpp/p/4671265.html
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