9

I'm running the Angular 2 beta.0 and I'm messing around with routing. Here's what I have

AppComponent:

import {Component, provide} from 'angular2/core';
import {bootstrap} from 'angular2/platform/browser';
import {FORM_DIRECTIVES, CORE_DIRECTIVES} from 'angular2/common';
import {Http, Response, HTTP_PROVIDERS} from 'angular2/http';
import {RouteConfig, Location, LocationStrategy, HashLocationStrategy, ROUTER_DIRECTIVES, ROUTER_PROVIDERS} from 'angular2/router';

import {HomeComponent} from './components/home';
import {RowsComponent} from './components/rows';
import {ColumnsComponent} from './components/columns';
import {TableComponent} from './components/table';

@Component({
  selector: 'app',
  directives: [FORM_DIRECTIVES, CORE_DIRECTIVES, ROUTER_DIRECTIVES],
  templateUrl: '/app/views/root.html',
  providers: [ROUTER_PROVIDERS]
})
@RouteConfig([
  {path:'/',       name: 'Home',     component: HomeComponent},
  {path:'Rows',    name: 'Rows',     component: RowsComponent},
  {path:'Columns', name: 'Columns',  component: ColumnsComponent},
  {path:'Table',   name: 'Table',    component: TableComponent}
])
class AppComponent {
  public title = 'Responsive Layout';
  public SelectedTab = 'Home';

  constructor(location: Location) {
    //location.go('Rows');
  }
}

bootstrap(AppComponent, [
  ROUTER_PROVIDERS,
  provide(LocationStrategy, {useClass: HashLocationStrategy})
]);

Every tutorial and API reference seems to point to me doing it just like I have above. I also have <base href="/app/" /> in the head of my index.html. Here are my RouterLinks

  <ul class="nav navbar-nav">
    <li [class.active]="SelectedTab=='Home'"><a [routerLink]="['Home']" (click)="SelectedTab='Home'">Home</a></li>
    <li [class.active]="SelectedTab=='Rows'"><a [routerLink]="['Rows']" (click)="SelectedTab='Rows'">Rows</a></li>
    <li [class.active]="SelectedTab=='Columns'"><a [routerLink]="['Columns']" (click)="SelectedTab='Columns'">Columns</a></li>
    <li [class.active]="SelectedTab=='Table'"><a [routerLink]="['Table']" (click)="SelectedTab='Table'">Table</a></li>
  </ul>

The routing behaves like it should. I get no errors. When I click on one of these entries in the bootstrap nav-bar I see that the views have switched out and are showing the proper templates and that their Components have run and are being bound to. However, despite using HashLocationStrategy in my bootstrap(...) call, the URLs are still "HTML5 Style": localhost:8080/app/Rows when it should be localhost:8080/app/#/Rows.

I believe I need to use the old # based way if I want my users to be able to bookmark a particular view and come back to it. If I allow for /app/Rows then refreshing the page causes a 404 because Rows doesn't exist in the app folder.

4

2 回答 2

16

我试过你的代码，它有效

我的代码如下：

引导.ts

import {bootstrap}    from 'angular2/platform/browser'
import {provide} from 'angular2/core';
import {AppComponent} from './app.component'
import {ROUTER_PROVIDERS, LocationStrategy, 
        HashLocationStrategy,
        PathLocationStrategy,
        APP_BASE_HREF, } from 'angular2/router'


bootstrap(AppComponent,[
     ROUTER_PROVIDERS,
     provide(APP_BASE_HREF, { useValue: '/' }),
     provide(LocationStrategy, {useClass : HashLocationStrategy})
]);

-

应用程序.ts

import {Component} from 'angular2/core';
import {RouteConfig, ROUTER_DIRECTIVES} from 'angular2/router';

@Component({
  selector:'second',
  template: `<h1>second</h1>`
})

export class SecondComponent{}

@Component({
   selector: 'home',
   template: `<h1>hello</h1>`
})

export class HomeComponent{}

@Component({
   directives : [ROUTER_DIRECTIVES],
   selector: 'my-app',
   template: 
    `<a [routerLink]="['Home']">home</a>
     <a [routerLink]="['Second']">Second</a>
     <router-outlet></router-outlet>
    `
})


 @RouteConfig([
   {path :'/' ,name: 'Home', component: HomeComponent},
   {path :'/second', name : 'Second', component : SecondComponent}

  ])

 export class AppComponent { }

我发现你的问题，删除这一行

providers : [ROUTER_PROVIDERS]

细节我不知道为什么，当你使用 ROUTERPROVIDERS 两次时，也许 angular 无法处理，期待有人可以帮助你

于 2015-12-16T19:12:04.690 回答
3

根据 Angular 2 最终版本，您必须通过将其放入主 @NgModule 的提供者中来包含LocationStrategy使用类HashLocationStrategy{provide: LocationStrategy, useClass: HashLocationStrategy}

app.module.ts

import {Component, NgModule} from '@angular/core';
import {
  LocationStrategy,
  HashLocationStrategy
} from '@angular/common';
@NgModule({
   imports: [...], //put module to import here
   declarations: [...], //put all component, pipe & directive
   exports: [...], //module to export
   //providers should reside here
   providers: [{provide: LocationStrategy, useClass: HashLocationStrategy}]
})
class AppModule {}
于 2016-09-25T15:25:14.933 回答