Angular 区分空路径和无参数

我想创建一个有两条路线的角度SPA：

http://mydomain/       <- Shows homepage
http://mydomain/2017   <- Shows results for 2017
http://mydomain/2018   <- Shows results for 2018

但是，访问

http://mydomain

将呈现

结果组件

；路由参数将只是空的

---

如果参数

：resultId

存在，我如何通知路由器它应该只与

ResultComponent

匹配？

使用

pathMatch:full

空路径路由配置，如下所示：

export const MyAppRoutes: Routes = [ 
    { path: "",  component: HomepageComponent, pathMatch: full },
    { path: ":resultId",  component: ResultComponent },
];

---

将

pathMatch:full

与空路径路由配置一起使用，如下所示：

export const MyAppRoutes: Routes = [ 
    { path: "",  component: HomepageComponent, pathMatch: full },
    { path: ":resultId",  component: ResultComponent },
];