C# 路由错误访问操作
默认情况下,MVC中的URL路由为{controller}/{action}/{id}。然后我们可以访问mydomain.com/Products/Details/1等 现在,我已经注册了另一条名为CategoryLandingPage的地图路线C# 路由错误访问操作,c#,asp.net-mvc,asp.net-mvc-routing,C#,Asp.net Mvc,Asp.net Mvc Routing,默认情况下,MVC中的URL路由为{controller}/{action}/{id}。然后我们可以访问mydomain.com/Products/Details/1等 现在,我已经注册了另一条名为CategoryLandingPage的地图路线 routes.MapRoute( name: "CategoryLandingPage", url: "category", defaults: new { controller = "Category", action = "Index" });
routes.MapRoute(
name: "CategoryLandingPage",
url: "category",
defaults: new { controller = "Category", action = "Index" });
因此,它将显示页面中的所有类别
然后我注册了另一个叫做CategoryDetails的地图路线
routes.MapRoute(
name: "CategoryDetails",
url: "category/{categoryName}",
defaults: new { controller = "Category", action = "Details", categoryName = UrlParameter.Optional });
当有人访问mydomain.com/category/cars时,它将显示与汽车相关的所有产品
同一控制器还具有另一个操作,如创建、编辑、删除和更多操作
问题是,当我访问mydomain.com/category/create时,它将转到详细操作。它不会转到类别控制器中的创建操作
我怎样才能解决这件事?有两种方法:
使用确保{categoryName}部分与您的类别之一匹配:
//You will have to make this
var categoryRouteConstraint = new CategoryRouteConstraint();
routes.MapRoute(
name: "CategoryDetails",
url: "category/{categoryName}",
constraints: new { categoryName = categoryRouteConstraint }
defaults: new { controller = "Category", action = "Details", categoryName = UrlParameter.Optional });
路由约束示例:
public class CategoryRouteConstraint : IRouteConstraint
{
public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
{
if (routeDirection == RouteDirection.UrlGeneration)
return true;
if (string.Equals(parameterName, "categoryName", StringComparison.OrdinalIgnoreCase))
{
//return true if (string)values[parameterName] == "known category name"
}
return false;
}
}
routes.MapRoute(
name: "CategoryDetails",
url: "Category/{key}",
defaults: new { controller = "Category", action = "Details" },
constraints: new { key = @"[^create|update|delete]" }
);
或者,首先拦截特定操作:
routes.MapRoute(
name: "CategoryDetails",
url: "category/create",
defaults: new { controller = "Category", action = "Create", categoryName = UrlParameter.Optional });
routes.MapRoute(
name: "CategoryDetails",
url: "category/delete",
defaults: new { controller = "Category", action = "Delete", categoryName = UrlParameter.Optional });
//Do one for Edit, Delete
//CategoryDetails route after
routes.MapRoute(
name: "CategoryDetails",
url: "category/{categoryName}",
defaults: new { controller = "Category", action = "Details", categoryName = UrlParameter.Optional });
你不能这样做。您通过url覆盖了默认路由:“category/{categoryName}” 解决路由问题的好方法是将其命名如下:
- 项目/-用于元素列表
- items/{name\u或\u id}/details-显示元素的详细信息
- items/{name\u或\u id}/edit-更新元素
- 项目/创建-创建新元素
routes.MapRoute(
name: "CategoryLandingPage",
url: "categories",
defaults: new { controller = "Category", action = "Index" });
routes.MapRoute(
name: "CategoryDetails",
url: "categories/{categoryName}/details",
defaults: new { controller = "Category", action = "Details" });
routes.MapRoute(
name: "CategoryUpdate",
url: "categories/{categoryName}/edit",
defaults: new { controller = "Category", action = "Edit" });
routes.MapRoute(
name: "CategoryLandingPage",
url: "categories/create",
defaults: new { controller = "Category", action = "Create" });
虽然上面的答案是正确的,但这是一个更简单的解决方案,尽管如果您像Dave的答案那样向控制器添加操作,它不会动态更新 据我所知,如果{key}是一个现有的操作,那么您希望它由默认路由处理,而不是使用Category控制器上的Details操作 为了实现这一点,您可以在关键约束中列出所有可能的操作:
public class CategoryRouteConstraint : IRouteConstraint
{
public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
{
if (routeDirection == RouteDirection.UrlGeneration)
return true;
if (string.Equals(parameterName, "categoryName", StringComparison.OrdinalIgnoreCase))
{
//return true if (string)values[parameterName] == "known category name"
}
return false;
}
}
routes.MapRoute(
name: "CategoryDetails",
url: "Category/{key}",
defaults: new { controller = "Category", action = "Details" },
constraints: new { key = @"[^create|update|delete]" }
);
在此示例中,
categorydeails
路由仅在url不是Category/create
或Category/update
或Category/delete
时匹配。例如,广告/汽车将匹配并使用详细信息
操作。似乎第二种解决方案是直接的方法,但对于第一种解决方案,对性能有任何影响吗?如果使用已知类别的缓存字典查找进行匹配,通常可以。我使用这种方法,它是次毫秒级的,您的代码不是在做相反的事情吗?这不是说CategoryDetails只有在键为create、update或delete时才会匹配吗?我想您在actions名称中遗漏了[]?我试着把那个符号放进去,现在它起作用了……嗯。。我认为这仍然是错误的。例如,car
将与您的正则表达式不匹配。我不确定是否有可能做你想做的事。看看这里:哇,从来没有想过要这样做-很棒的东西