相关疑难解决方法(0)

如何从父组件获取RouteParams？

App.ts:

@Component({
  ...
})

@RouteConfig([
  {path: '/', component: HomeComponent, as: 'Home'},
  {path: '/:username/...', component: ParentComponent, as: 'Parent'}
])

export class HomeComponent {
  ...
}

然后,在中ParentComponent,我可以轻松获取用户名参数并设置子路由.

Parent.ts:

@Component({
  ...
})

@RouteConfig([
  { path: '/child-1', component: ChildOneComponent, as: 'ChildOne' },
  { path: '/child-2', component: ChildTwoComponent, as: 'ChildTwo' }
])

export class ParentComponent {

  public username: string;

  constructor(
    public params: RouteParams
  ) {
    this.username = params.get('username');
  }

  ...
}

但是,如何在这些子组件中获得相同的"用户名"参数？做与上面相同的技巧,不会这样做.因为这些参数是在ProfileComponent中定义的还是什么？

@Component({
  ...
})

export class ChildOneComponent {

  public …