ASP.NET MVC 5 自定义路由执行错误操作

Question

我在使用未正确路由的自定义路由时遇到问题。 @Html.ActionLink 和 @Html.RouteLink 都创建了正确的 url fantasy/1/fantasyleague1/matchups，点击时不会触及 Matchups Action 并且错误地路由到 fantasy/1/fantasyleague1/settings?round=3

RouteDebugger 显示：

Matched Route: Fantasy/{leagueID}/{leagueSlug}/Settings

Generated URL: /fantasy/11/fantasyleague1/matchups/3 using the route "Fantasy/{leagueID}/{leagueSlug}/Matchups/{round}"

RouteConfig.cs

    routes.MapRoute(
        name: "Fantasy League Matchups",
        url: "Fantasy/{leagueID}/{leagueSlug}/Matchups/{round}",
        defaults: new { controller = "Fantasy", action = "Matchups", leagueSlug = UrlParameter.Optional, round = UrlParameter.Optional },
        constraints: new { leagueID = @"\d+" }
    );

    routes.MapRoute(
        name: "Fantasy League Settings",
        url: "Fantasy/{leagueID}/{leagueSlug}/Settings",
        defaults: new { controller = "Fantasy", action = "Settings", leagueSlug = UrlParameter.Optional },
        constraints: new { leagueID = @"\d+" }
    );

FantasyController.cs

    // GET: /Fantasy/{leagueID}/{leagueSlug}/Matchups/{round}
    public ActionResult Matchups(int leagueID, string leagueSlug = null, int round = -1) {
        var fantasyLeague = DataContext.FantasyLeagues.Where(l => l.ID == leagueID).FirstOrDefault();
        if (fantasyLeague != null) {
            if (string.IsNullOrEmpty(leagueSlug) || round == -1) {
                return RedirectToActionPermanent("Matchups", "Fantasy", new { leagueID = leagueID, leagueSlug = fantasyLeague.Slug, round = fantasyLeague.CurrentRound });
            }

            var userInLeague = User != null && User.Identity != null && fantasyLeague.FantasyTeams.Any(t => t.Owner.UserName == User.Identity.Name);
            var fantasyMatches = fantasyLeague.FantasyMatches.Where(fm => fm.Round == round).ToList();

            return View("Matchups", new FantasyMatchupsViewModel {
                FantasyLeague = fantasyLeague,
                FantasyMatches = fantasyMatches,
                Round = round,
                UserInLeague = userInLeague
            });
        }
        return RedirectToAction("Index");
    }

    // GET: /Fantasy/{leagueID}/{leagueSlug}/Settings
    public ActionResult Settings(int leagueID, string leagueSlug = null) {
        var fantasyLeague = DataContext.FantasyLeagues.Where(l => l.ID == leagueID).FirstOrDefault();
        if (fantasyLeague != null) {
            if (string.IsNullOrEmpty(leagueSlug)) {
                return RedirectToActionPermanent("Settings", "Fantasy", new { leagueID = leagueID, leagueSlug = fantasyLeague.Slug });
            }

            var userOwnsLeague = User != null && User.Identity != null && fantasyLeague.Commissioner.UserName == User.Identity.Name;

            return View("Settings", new FantasySettingsViewModel {
                FantasyLeague = fantasyLeague,
                UserOwnsLeague = userOwnsLeague,
                Name = fantasyLeague.Name,
                MaxPlayers = fantasyLeague.MaxPlayers,
                LockoutPeriod = fantasyLeague.LockoutPeriod,
                PasswordProtected = fantasyLeague.PasswordProtected,
                Password = fantasyLeague.Password
            });
        }
        return RedirectToAction("Index");
    }

Answer 1

很可能，这根本不是路由问题。您正在使用 RedirectToActionPermanent，它会产生 301 重定向。大多数浏览器都会缓存 301 重定向，因此您看到的行为很可能来自浏览器缓存的第一次命中。

您应该使用 RedirectToAction，而不是使用 RedirectToActionPermanent，这将生成 "normal" 302 重定向。

301 重定向是为了确保 URL 已经投入使用（也就是说，用户可能已将 and/or 搜索引擎可能已编入索引）更新到新位置。它们通常不应仅用于在您的应用程序中将用户从 URL A 转移到 URL B。

ASP.NET MVC 5 自定义路由执行错误操作

ASP.NET MVC 5 custom route goes to wrong action

c#

asp.net-mvc

url-routing

asp.net-mvc-routing

asp.net-mvc-5