我遇到404错误,当我尝试调用我的WebAPI控制器没有可选参数。我尝试在Global.asax.cs中重新排序路由初始化命令无济于事。 WebAPI位于一个区域内,我将该区域的路由信息注释掉,以便它找不到该路由。下面是我有:WebAPI路由与区域 - 404错误时丢失可选参数
在WebApiConfig.cs:
public static void Register(HttpConfiguration configuration)
{
configuration.Routes.MapHttpRoute("DefaultAPI",
"API/{controller}/{action}/{id}",
new { id = RouteParameter.Optional });
// From http://weblogs.asp.net/fbouma/how-to-make-asp-net-webapi-serialize-your-llblgen-pro-entities-to-json
var json = configuration.Formatters.JsonFormatter;
json.SerializerSettings.PreserveReferencesHandling = Newtonsoft.Json.PreserveReferencesHandling.Objects;
json.SerializerSettings.ContractResolver = new DefaultContractResolver()
{
IgnoreSerializableInterface = true,
IgnoreSerializableAttribute = true
};
var appXmlType = configuration.Formatters.XmlFormatter.SupportedMediaTypes.FirstOrDefault(t => t.MediaType == "application/xml");
configuration.Formatters.XmlFormatter.SupportedMediaTypes.Remove(appXmlType);
}
在APIAreaRegistration.cs :
public override void RegisterArea(AreaRegistrationContext context)
{
//context.MapRoute(
// "API_default",
// "API/{controller}/{action}/{id}",
// new { action = "Index", id = UrlParameter.Optional }
//);
}
在Global.asax.cs中:
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
GlobalConfiguration.Configure(WebApiConfig.Register);
//WebApiConfig.Register(GlobalConfiguration.Configuration);
WebApiConfig.RegisterSiteMap();
RouteConfig.RegisterRoutes(RouteTable.Routes);
}
(请注意:我使用注释掉的行与一个它上面并没有什么区别试过)
这里是我的问题的控制器:
[HttpGet]
public IEnumerable<LocationFilterViewModel> GetLocations(int? id)
{
LocationFilterCollection Locations = LocationFilterCollection.GetLocations(id.HasValue ? id.Value : 0);
List<LocationFilterViewModel> myList = new List<LocationFilterViewModel>();
foreach (LocationFilterEntity myEntity in Locations)
{
LocationFilterViewModel myModel = new LocationFilterViewModel();
InitializeModel(myEntity, myModel);
myList.Add(myModel);
}
return myList;
}
最后,在这里在我看来代码:
@Html.Kendo().TreeView().Name("Locations").LoadOnDemand(false).DataTextField("LocationName").DragAndDrop(false).Checkboxes(true).AutoBind(true).ExpandAll(true).DataSource(dataSource => dataSource
.Model(model => model
.Id("LocationId")
.HasChildren("HasChildren"))
.Read(read => read.Url(@Url.HttpRouteUrl("DefaultAPI", new { controller="LocationFilterAPI", action="GetLocations" }))))
如果我添加ID = 0后的行动=语句,它不再返回404错误,但而不是返回当前节点的孩子,我t一直返回0节点。如果我省略了ID = 0,则返回404错误,即
/API/LocationFilterAPI /的getLocations/0 - 正常工作
/API/LocationFilterAPI /的getLocations - 返回404
每隔API调用我在这个控制器中有一个必需的参数或根本没有参数,并且所有这些工作都很好。整个下午我一直在抨击这件事。任何有识之士将不胜感激。
谢谢!
劳瑞
附:为了回应发表评论,下面,这里是我的RegisterRoutes方法:
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
name: "LibraryCategoryList",
url: "Library/List/{id}/{id2}",
defaults: new { controller = "Library", action = "List", id = UrlParameter.Optional,id2=UrlParameter.Optional }
);
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
namespaces: new[] { "BFRDP.Controllers" }
);
}
我猜不会对最终的参数,它是治疗'GetLocations'作为其他路由的参数。你的'Application_Start'也注册了MVC路由 - 你只显示了API路由。其他路线是什么样的? –