定义但未识别的Angular2 RC1子路线 [英] Angular2 RC1 child routes defined but not recognized

问题描述

过去用于beta/...的东西不再起作用.使用新的新RC1路由器，我该如何进行子级路由?

What used to work for beta /... is no longer working. With the new new RC1 router, how do I do the child routing?

文件夹结构

app
  |--home/
  |    |--home.component.ts
  |--login/
  |    |--login.ts
  |--appShell/
  |    |--app.component.ts
  |--apps/
       |--hero/
            |--hero-shell.component.ts  
            |--horees.component.ts 
            |--hero-detail.component.ts

计划的导航为

app.component -> home.component -> heroshell.component -> heroes.component 

app.component.ts路线

app.component.ts routes

@Routes([
    { path: '/heroshell', component: HeroShellComponent },
    { path: '/home',  component: HomeComponent },
    { path: '/login', component: Login },   
])
export class AppComponent implements OnInit {
  title = 'Apps';       
  constructor(public _auth: Authentication, 
              public router: Router,
              private _dialogService: DialogService
              ) {}      
  ngOnInit() {
    this.router.navigate(['/login']);
  }
  .......

成功登录后，Login类将

Once logged in successful, The Login class will

this.router.navigate(['/home']);

我可以从HomeComponent.ts

From HomeComponent.ts I can do

this.router.navigate(['/heroshell']);

到目前为止，一切都很好，没问题. 在hero-shell.component.ts中，我有子路由

So far so good, no problem. In hero-shell.component.ts I have child route

@Component({
  selector: 'my-app1', 
  templateUrl: 'app/apps/hero/hero-shell.component.html',
  styleUrls: ['app/appshell/app.component.css'],
  directives: [ROUTER_DIRECTIVES],
  providers: [HeroService]
})

@Routes([
    { path: 'heroes', component: HeroesComponent },
    { path: 'dashboard', component: DashboardComponent },
    { path: 'hero/:_id', component: HeroDetailComponent},
    ])
export class HeroShellComponent { // implements OnInit
  title = 'Hero Sample App';

  constructor(public _auth: Authentication, 
              public router: Router
              ) {} 
}

在hero-shell.component.html

in hero-shell.component.html

<my-app1>

<h1>{{title}}</h1>
<!--<button *ngIf="_auth.loggedIn" (click)="onLogout()">Logout</button>-->

<nav>
    <a [routerLink]="['dashboard']">Dashboard</a>
    <a [routerLink]="['heroes']">Heroes</a>
</nav>
<router-outlet></router-outlet>

</my-app1>

请注意，路径只能是'heroes'.如果我将其更改为[routerLink]，将@Routes更改为'/heroes'，将无法使用.可以帮忙解释一下原因吗?

Note that the path can only be 'heroes'. if I change to [routerLink] and @Routes to '/heroes' it won't work. Can some help explain why?

因此它现在可以识别子路由.单击routerLink英雄，将显示英雄列表.但是当我通过

And so it can recognize the child routes now. Click on routerLink heroes will display the hero list. But when I detailed it from HeroesComponent by

this._router.navigate(['hero/'+hero._id]); 

它爆炸了

browser_adapter.ts:78 EXCEPTION: Error: Uncaught (in promise): 
Cannot match any routes. Current segment: 'hero'. 
Available routes: ['/heroshell', '/home', '/login'].

这很奇怪.如果无法识别子路线，我该如何首先进入HeroesComponent?现在子路线刚刚消失了.

This is very strange. If it does not recognize the child routes how can I even get into HeroesComponent in the first place? And now the child routes just disappeared.

如果我使用

this._router.navigate(['hero/'+hero._id],this.currSegment);

它将给出不同的错误

browser_adapter.ts:78 EXCEPTION: 
Error: Uncaught (in promise): Component 'HeroesComponent' does not have route configuration

那么这是否意味着所有子组件都必须在其上反复使用@Routes?

So does that mean all the child components have to have @Routes on them repeatedly?

推荐答案

请注意，路径只能是英雄".如果我将其更改为[routerLink]，将@Routes更改为"/heroes"，则将无法使用.可以帮忙解释一下原因吗?

Note that the path can only be 'heroes'. if I change to [routerLink] and @Routes to '/heroes' it won't work. Can some help explain why?

实际上，子路由器中的路径可以包含"/"作为前缀，但是将routerLink更改为"/heroes"使其无法工作，因为导航路径中的"/"前缀将使用根路由器进行解析，并且确实没有"/heroes"路径.之所以使用英雄"路径是因为它将使用当前路由器来解析，并且您已在当前子路由器中定义了该路径.

Actually paths in child router can contain "/" as prefix but changing routerLink to "/heroes" made it not work because "/" prefix in navigation path will be resolved using root router and does not have "/heroes" path. "heroes" path worked because it will be resolved using current router and you defined that path in current child router.

this._router.navigate(['hero/'+ hero._id]);

this._router.navigate(['hero/'+hero._id]);

不使用段调用导航"将使用根路由器来解决.这意味着您要进行绝对导航.显然这是行不通的.

Calling "navigate" without a segment will be resolved using root router. It means you want to do absolute navigation. Obviously this will not work.

this._router.navigate(['hero/'+ hero._id]，this.currSegment);

this._router.navigate(['hero/'+hero._id],this.currSegment);

这也不起作用，因为您位于HeroesComponent和"heroes"网段，该组件中没有路由器配置.正确的呼叫应为:

This also did not work because you are at HeroesComponent and "heroes" segment, there is no router configuration in the component. The correct call should be:

this._router.navigate(['../hero', {_id: hero._id}], this.currSegment);

这篇关于定义但未识别的Angular2 RC1子路线的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！