Angular - 在应用组件中获取路由数据

Question

我配置了以下路由 app-routing.module.ts

const routes: Routes = [
  {
    path: 'abc/:id', component: AbcComponent, data: { category: 'Public' }
  },
  {
    path: 'xyz/:id/tester/:mapId', component: XyzComponent, data: { category: 'Private' }
  },
  { path: '**', redirectTo: '/page-not-found', pathMatch: 'full'}
]

在app.component.ts我想根据传递的 URL 获取每个路由的类别：

例如：go to http://myapp.com/abc/123 should return category as Public going to http://myapp.com/xyz/123/tester/456 should return category asPrivate

这是我到目前为止所拥有的：

constructor(
    private activatedRoute: ActivatedRoute,
    private router: Router
)
{
  checkRouteAndGetCategory()
}

checkRouteAndGetCategory()
{
  this.router.events.pipe(
        filter(event => event instanceof NavigationEnd),
        map(() => this.activatedRoute),
        map(route => {
          while (route.firstChild) route = route.firstChild
          return route
        }),
        filter(route => route.outlet === 'primary'),
        mergeMap(route => route.data)
      ).subscribe(data =>
        console.log('data', data)
      )
}

上面的代码似乎没有得到正确的路线。例如：如果我在http://myapp.com/abc/123页面上并导航到http://myapp.com/xyz/123/tester/456，它似乎获取了http://myapp.com/abc/123页面的数据 。

Answer 1

这就是我的应用程序组件中的内容

constructor(private route: ActivatedRoute) {
}

ngOnInit(): void {
  this.router.events.pipe(
    filter(event => event instanceof NavigationEnd),
    map(() => this.rootRoute(this.route)),
    filter((route: ActivatedRoute) => route.outlet === 'primary'),
    mergeMap((route: ActivatedRoute) => route.data)
  ).subscribe((event: {[name: string]: any}) => {
    this.titleService.setRouteTitle(event['title']);
  });
}

private rootRoute(route: ActivatedRoute): ActivatedRoute {
  while (route.firstChild) {
    route = route.firstChild;
  }
  return route;
}

我的应用程序路线如下所示：

{ path: 'login', component: LoginComponent, data: { title: 'Login' } }

而我的title service负责设置title。

我和你的唯一区别是你在构造函数中绑定到路由器，而我在ngOnInit. 你能试着调用你所拥有的ngOnInit吗？我不确定这是否会有所作为，但值得一试。