我的整个数据库都有一个控制器,代码如下:
public class YogaController : DbDataController<Yoga.Models.YOGAEntities>
{
public YogaController()
{
}
public IQueryable<Yoga.Models.Action> GetActions(int BugId)
//GetActions retrieves "actions" table from the db, not Actions in MVC term
{
return DbContext.Actions.Where(x => x.FK_BugsID == BugId);
}
public IQueryable<Yoga.Models.Label> GetRequiredLabels()
{
return DbContext.Labels.Where(x => x.IsRequired == true);
}
public IQueryable<Yoga.Models.Role> GetRoles()
{
return DbContext.Roles;
}
public IQueryable<Role> GetRoles2() //TODO: finish this
{
return DbContext.Roles.Where(x => x.RoleID == 1);
}
public IQueryable<Tag> GetTags(int actionid)
{
return DbContext.Tags.Where(x => x.J_Tags.Any(y => y.FK_ActionID == actionid));
}
}
如您所见,我在一个控制器中有多个IQueryable,每个查询一个不同的表。这是被禁止的吗?因为当我转到localhost/api/Yoga/GetActions
或localhost/api/Yoga/GetRequiredLabels
时,我收到错误消息:
Multiple actions were found that match the request:
System.Linq.IQueryable`1[Yoga.Models.Label] GetRequiredLabels() on type Yoga.Controllers.YogaController
System.Linq.IQueryable`1[Yoga.Models.Role] GetRoles() on type Yoga.Controllers.YogaController
System.Linq.IQueryable`1[Yoga.Models.Role] GetRoles2() on type Yoga.Controllers.YogaController
当我禁用除IQIeryable之外的所有内容时,结果很好。
我搜索了类似的问题并检查了我的路由设置,控制器路径和名称没有冲突。
我的路线(默认生成):
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
//routes.MapRoute(
// name: "Default",
// url: "{controller}/{action}/{id}",
// defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
有什么想法吗?
答案 0 :(得分:3)
MVC4可能会将您的HTTP谓词(Get)与名称以“Get”开头但没有参数的所有方法相匹配。尝试强制操作名称:
[ActionName("GetRequiredLabels")]
public IQueryable<Yoga.Models.Label> GetRequiredLabels()
...
[ActionName("GetActions")]
public IQueryable<Yoga.Models.Action> GetActions(int BugId)
... // etc
修改强>
根据您粘贴的路线和控制器,我认为您的路线应为:
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{action}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
即。它应该有{action}
。如果您只有一个“Get”方法,则默认的MVC4路由将起作用。由于您有多个,因此您必须强制它根据路线选择操作。