Question

我们已将Angular 2项目升级为Release Candidate 4.

我们正在使用HashLocationStrategy来刷新浏览器中的页面（使用BrowserSync）。但是对于RC4，这不再适用。没有组件被加载到routeroutlet中。但是，使用菜单项的routerlink确实有效。

RC4的HashLocationStrategy是否已损坏，或者我们是否正确使用它？我们还没有在互联网上找到任何信息。（现在只是试图通过Angular2源代码找到我们的方法来找出发生了什么）

更新：这是代码。

此外，我们似乎无法找到一种方法来使默认路由正常工作。尝试如下所示的空路径，尝试重定向...似乎没有触发将组件加载到路由出口的默认路由。

// boot:

import {bootstrap} from '@angular/platform-browser-dynamic';

import {AppComponent} from './app.component';

bootstrap(AppComponent)
    .catch(err => console.log(err));


// AppComponent:

import {Component, provide, ExceptionHandler} from '@angular/core';
import {HTTP_PROVIDERS, XHRBackend} from '@angular/http';
import {CORE_DIRECTIVES, LocationStrategy, HashLocationStrategy} from '@angular/common';
import {TranslatePipe, TranslateService, TRANSLATE_PROVIDERS} from 'ng2-translate/ng2-translate';

import {SideMenuComponent} from './navigatie/index';
import {AppSettingsService, Auth, MockBackendToggle} from './shared/index';
import {EssStorage} from './shared/ess-storage';
import {EssHttp} from './shared/ess-http';
import {DienstverbandService} from './dienstverband/shared/dienstverband.service';
import {HeaderMenuComponent} from './navigatie/headermenu/headermenu.component';
import {WerknemerService} from './werknemer/werknemer.service';
import {PersoonService} from './werknemer/persoon/shared/persoon.service';
import {RouterOutlet} from '@angular/router';
import {APP_ROUTER_PROVIDER} from './navigatie/routes';
import {AuthGuard} from './shared/auth/auth-guard';
import {EssExceptionHandler} from './shared/ess-exception-handler';


@Component({
    selector: 'ess-app',
    pipes: [TranslatePipe],
    directives: [CORE_DIRECTIVES, SideMenuComponent, HeaderMenuComponent, RouterOutlet],
    providers: [TRANSLATE_PROVIDERS, TranslateService, HTTP_PROVIDERS, EssHttp, WerknemerService, APP_ROUTER_PROVIDER, AuthGuard,
                AppSettingsService, Auth, DienstverbandService, PersoonService, provide(XHRBackend, {useClass: MockBackendToggle}),
                provide(LocationStrategy, {useClass: HashLocationStrategy}), provide(ExceptionHandler, {useClass: EssExceptionHandler})],
    template: `
    <div id='main'>
        <div class='header  hidden-xs' *ngIf="_auth !== undefined && _auth.isLoggedIn()">
            <header>
                <ess-headermenu></ess-headermenu>
            </header>
       </div>

        <div class='ess-sidemenu-container visible-lg' *ngIf="_auth !== undefined && _auth.isLoggedIn()">
            <ess-sidemenu></ess-sidemenu>
        </div>

        <div class='main-content-container col-lg-12'>
            <section> 
                <section id='content'>
                    <div>
                        <router-outlet></router-outlet>
                    </div>
                </section>
            </section>
        </div>
    </div>`
})
export class AppComponent { //..}

// routes:

import {provideRouter, RouterConfig} from '@angular/router';
import {DashboardComponent} from '../dashboard/index';
import {PersonaliaComponent} from '../werknemer/index';
import {LoginComponent} from '../login/index';
import {AuthGuard} from '../shared/auth/auth-guard';

export const appRoutes: RouterConfig = [
    {path: '',                      component: LoginComponent},
    {path: 'login/:url',            component: LoginComponent},
    {path: 'dashboard',             component: DashboardComponent},
    {path: 'personalia',            component: PersonaliaComponent,             canActivate: [AuthGuard]}
];

export const APP_ROUTER_PROVIDER = provideRouter(appRoutes);

更新：

当我通过点击链接并使用[routerLink]导航到视图时，路由器插座将填充正确的组件。例如，当导航到'auto'时。

<li class="submenuitem" [routerLink]="['auto']"><a href="#"><span>{{'AUTO' | translate}}</span></a></li>

但是当我例如刷新“自动”页面时，路由器插座变空了。

Answer 1

在Angular 2 rc4中，似乎LocationStrategy已从路由器移动到公共端。你必须从那里导入它。

另请注意＆＃39;周围的花括号提供＆＃39;线。

rc4：main.ts

// Imports for loading & configuring the in-memory web api
import { XHRBackend } from '@angular/http';

// The usual bootstrapping imports
import { bootstrap }      from '@angular/platform-browser-dynamic';
import { HTTP_PROVIDERS } from '@angular/http';

import { AppComponent }         from './app.component';
import { APP_ROUTER_PROVIDERS } from './app.routes';
import { Location, LocationStrategy, HashLocationStrategy} from '@angular/common';

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

rc5：app.module.ts

在rc.5中，由于main.ts的重大变化，这又被改变了。现在，在导入RouterModule时，Hashlocationstrategy在app.module.ts中实现。

@NgModule({
imports: [routing, RouterModule.forRoot(routing,{ useHash: true })],

2.0.0：app.module.ts

在Angular 2.0.0（=发布版本）中，Hashlocationstrategy停留在app.module.ts中，但语法略有改变。它现在和供应商坐在一起。

...
import { LocationStrategy, HashLocationStrategy } from '@angular/common';
...  

@NgModule({
  bootstrap: [AppComponent],
  imports: [
    //all your modules
  ],
  declarations: [
    //all your components
  ],
  providers: [
    //all your services
    {provide: LocationStrategy, useClass: HashLocationStrategy},
  ]
})

Angular 2 RC 4 - hashlocationstrategy不再工作

1 个答案: