[解決済み] Angular 2 ルーターベースなし href = "/stock/stock_detail.html?

質問

エラーが発生し、原因がわかりません。以下がそのエラーです。

EXCEPTION: Error during instantiation of LocationStrategy! (RouterOutlet -> Router -> Location -> LocationStrategy).
    angular2.dev.js:23514 EXCEPTION: Error during instantiation of LocationStrategy! (RouterOutlet -> Router -> Location -> LocationStrategy).BrowserDomAdapter.logError @ angular2.dev.js:23514BrowserDomAdapter.logGroup @ angular2.dev.js:23525ExceptionHandler.call @ angular2.dev.js:1145(anonymous function) @ angular2.dev.js:14801NgZone._notifyOnError @ angular2.dev.js:5796collection_1.StringMapWrapper.merge.onError @ angular2.dev.js:5700run @ angular2-polyfills.js:141(anonymous function) @ angular2.dev.js:5719zoneBoundFn @ angular2-polyfills.js:111lib$es6$promise$$internal$$tryCatch @ angular2-polyfills.js:1511lib$es6$promise$$internal$$invokeCallback @ angular2-polyfills.js:1523lib$es6$promise$$internal$$publish @ angular2-polyfills.js:1494(anonymous function) @ angular2-polyfills.js:243microtask @ angular2.dev.js:5751run @ angular2-polyfills.js:138(anonymous function) @ angular2.dev.js:5719zoneBoundFn @ angular2-polyfills.js:111lib$es6$promise$asap$$flush @ angular2-polyfills.js:1305
    angular2.dev.js:23514 ORIGINAL EXCEPTION: No base href set. Please provide a value for the APP_BASE_HREF token or add a base element to the document.BrowserDomAdapter.logError @ angular2.dev.js:23514ExceptionHandler.call @ angular2.dev.js:1154(anonymous function) @ angular2.dev.js:14801NgZone._notifyOnError @ angular2.dev.js:5796collection_1.StringMapWrapper.merge.onError @ angular2.dev.js:5700run @ angular2-polyfills.js:141(anonymous function) @ angular2.dev.js:5719zoneBoundFn @ angular2-polyfills.js:111lib$es6$promise$$internal$$tryCatch @ angular2-polyfills.js:1511lib$es6$promise$$internal$$invokeCallback @ angular2-polyfills.js:1523lib$es6$promise$$internal$$publish @ angular2-polyfills.js:1494(anonymous function) @ angular2-polyfills.js:243microtask @ angular2.dev.js:5751run @ angular2-polyfills.js:138(anonymous function) @ angular2.dev.js:5719zoneBoundFn @ angular2-polyfills.js:111lib$es6$promise$asap$$flush @ angular2-polyfills.js:1305
    angular2.dev.js:23514 ORIGINAL STACKTRACE:BrowserDomAdapter.logError @ angular2.dev.js:23514ExceptionHandler.call @ angular2.dev.js:1157(anonymous function) @ angular2.dev.js:14801NgZone._notifyOnError @ angular2.dev.js:5796collection_1.StringMapWrapper.merge.onError @ angular2.dev.js:5700run @ angular2-polyfills.js:141(anonymous function) @ angular2.dev.js:5719zoneBoundFn @ angular2-polyfills.js:111lib$es6$promise$$internal$$tryCatch @ angular2-polyfills.js:1511lib$es6$promise$$internal$$invokeCallback @ angular2-polyfills.js:1523lib$es6$promise$$internal$$publish @ angular2-polyfills.js:1494(anonymous function) @ angular2-polyfills.js:243microtask @ angular2.dev.js:5751run @ angular2-polyfills.js:138(anonymous function) @ angular2.dev.js:5719zoneBoundFn @ angular2-polyfills.js:111lib$es6$promise$asap$$flush @ angular2-polyfills.js:1305
    angular2.dev.js:23514 Error: No base href set. Please provide a value for the APP_BASE_HREF token or add a base element to the document.
        at new BaseException (angular2.dev.js:8080)
        at new PathLocationStrategy (router.dev.js:1203)
        at angular2.dev.js:1380
        at Injector._instantiate (angular2.dev.js:11923)
        at Injector._instantiateProvider (angular2.dev.js:11859)
        at Injector._new (angular2.dev.js:11849)
        at InjectorDynamicStrategy.getObjByKeyId (angular2.dev.js:11733)
        at Injector._getByKeyDefault (angular2.dev.js:12048)
        at Injector._getByKey (angular2.dev.js:12002)
        at Injector._getByDependency (angular2.dev.js:11990)

なぜルーターがこれを投げるのか、誰か知っていますか？私はangular2 betaを使用しています。

以下は私のコードです。

import {Component} from 'angular2/core';
import { RouteConfig, ROUTER_DIRECTIVES } from 'angular2/router';
import {LoginComponent} from './pages/login/login.component';
import {DashboardComponent} from './pages/dashboard/dashboard.component';
@Component({
    selector: 'app',
    directives:[ROUTER_DIRECTIVES],
    template:`
        <div class="wrapper">
            <router-outlet></router-outlet>
        </div>`
})
@RouteConfig([
    { path: '/',redirectTo: '/dashboard' },
    { path: '/login',name:'login',component: LoginComponent },
    { path: '/dashboard',name:'dashboard',component: DashboardComponent,}
])
export class AppComponent {
}

解決方法は？

https://angular.io/docs/ts/latest/guide/router.html

の直後に base 要素を追加します。 <head> タグを使用します。もし app フォルダがアプリケーションのルートである場合、このアプリケーションのように href 値 まさに このように

は <base href="/"> は、URLの静的な部分をAngularルータに伝えます。ルーターはURLの残りの部分のみを変更します。

<head>
  <base href="/">
  ...
</head>

または

>= Angular2 RC.6

import {APP_BASE_HREF} from '@angular/common';

@NgModule({
  declarations: [AppComponent],
  imports: [routing /* or RouterModule */], 
  providers: [{provide: APP_BASE_HREF, useValue : '/' }]
]); 

をブートストラップに入れてください。

古いバージョンでは、インポートは以下のようにする必要がありました。

< Angular2 RC.6

import {APP_BASE_HREF} from '@angular/common';
bootstrap(AppComponent, [
  ROUTER_PROVIDERS, 
  {provide: APP_BASE_HREF, useValue : '/' });
]); 

RC.0

import {provide} from 'angular2/core';
bootstrap(AppComponent, [
  ROUTER_PROVIDERS, 
  provide(APP_BASE_HREF, {useValue : '/' });
]); 

< beta.17

import {APP_BASE_HREF} from 'angular2/router';

>=ベータ.17

import {APP_BASE_HREF} from 'angular2/platform/common';

参照 ベータ16でLocationとHashLocationStrategyが動作しなくなりました。