[英]Getting 404 on IRouter implementation ASP.NET Core MVC
I'm trying to implement my own dynamic router, my plan is to pull routes from my database and create a set of dynamic landing pages, my issue is that I'm getting 404 after setting up context.RouteData to my new route data. 我正在尝试实现自己的动态路由器,我的计划是从数据库中提取路由并创建一组动态登陆页面,我的问题是,在设置context.RouteData之后,我得到了404到新的路由数据。
I just want to redirect to my LandingPageController and the Index IActionResult everytime I found a route. 每当我找到一条路线时,我只想重定向到我的LandingPageController和Index IActionResult。
using System.Threading.Tasks;
using Microsoft.AspNetCore.Routing;
using System.Collections.Generic;
using System.Linq;
namespace Myproject.Web.Main.Config
{
public class LandingPageRouter : IRouter
{
public VirtualPathData GetVirtualPath(VirtualPathContext context)
{
return null;
}
public Task RouteAsync(RouteContext context)
{
var requestPath = context.HttpContext.Request.Path.Value;
if (!string.IsNullOrEmpty(requestPath) && requestPath[0] == '/')
{
requestPath = requestPath.Substring(1);
}
var pagefound = GetPages().Any(x => x == requestPath);
if (pagefound)
{
//TODO: Handle querystrings
var routeData = new RouteData();
routeData.Values["controller"] = "LandingPage";
routeData.Values["action"] = "Index";
context.RouteData = routeData;
}
return Task.FromResult(0);
}
private IEnumerable<string> GetPages()
{
//TODO: pull from database
return new List<string> { "page-url-title", "another-dynamic-url" };
}
}
}
I looked at this answer but it seems outdated some properties in the context doesn't even exist anymore in RC2. 我看了这个答案,但是在RC2中,上下文中的某些属性似乎已经过时了。
What Am I missing? 我想念什么?
It doesn't seem like the nicest solution but from my testing it should work for your requirements. 这似乎不是最好的解决方案,但从我的测试来看,它应该可以满足您的要求。
I injected the default MVC IRouter
into your LandingPageRouter
. 我将默认的MVC IRouter
注入了您的LandingPageRouter
。 Then, once you have updated the route data, just call the default router and pass in the context: 然后,一旦更新了路由数据,只需调用默认路由器并传递上下文即可:
public class LandingPageRouter : IRouter
{
private readonly IRouter _router;
public LandingPageRouter(IRouter router)
{
_router = router;
}
public VirtualPathData GetVirtualPath(VirtualPathContext context)
{
return null;
}
public Task RouteAsync(RouteContext context)
{
var requestPath = context.HttpContext.Request.Path.Value;
if (!string.IsNullOrEmpty(requestPath) && requestPath[0] == '/')
{
requestPath = requestPath.Substring(1);
}
var pagefound = GetPages().Any(x => x == requestPath);
if (pagefound)
{
//TODO: Handle querystrings
var routeData = new RouteData();
routeData.Values["controller"] = "LandingPage";
routeData.Values["action"] = "Index";
context.RouteData = routeData;
return _router.RouteAsync(context);
}
return Task.FromResult(0);
}
private IEnumerable<string> GetPages()
{
//TODO: pull from database
return new List<string> { "page-url-title", "another-dynamic-url" };
}
}
Then just insert the default route wherever you are adding your route in Startup.Configure
: 然后,只要在Startup.Configure
中添加路由的地方插入默认路由即可:
app.UseMvc(routes =>
{
routes.Routes.Add(new LandingPageRouter(routes.DefaultHandler));
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
Based on this answer and @sock approach, I passed the route builder which is going to pass at the same time the router context 基于此答案和@sock方法,我通过了路由构建器,该构建器将在路由器上下文同时传递
public LandingPageRouter(IRouteBuilder routeBuilder)
{
_routeBuilder = routeBuilder;
}
public Task RouteAsync(RouteContext context)
{
var requestPath = context.HttpContext.Request.Path.Value;
if (!string.IsNullOrEmpty(requestPath) && requestPath[0] == '/')
{
requestPath = requestPath.Substring(1);
}
var pagefound = GetPages().SingleOrDefault(x => x.Name == requestPath);
if (pagefound!=null)
{
//TODO: Handle querystrings
var routeData = new RouteData();
routeData.Values["controller"] = "LandingPage";
routeData.Values["action"] = "Index";
routeData.Values["id"] = pagefound.Id;
context.RouteData = routeData;
return _routeBuilder.DefaultHandler.RouteAsync(context);
}
return Task.FromResult(0);
}
Routes configuration in startup.cs 在startup.cs中的路由配置
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
routes.Routes.Add(new LandingPageRouter(routes));
}
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