Angular 4应用程序主页未显示登录屏幕

对于我正在处理的Angular 4应用程序之一，我有以下app.component.html：

<app-layout-header></app-layout-header>

<router-outlet></router-outlet>

<app-layout-footer></app-layout-footer>

这是我的app.routing.ts：

import { Routes, RouterModule } from '@angular/router';

import { HomeComponent } from './home/index';
import { LoginComponent } from './login/index';
import { RegisterComponent } from './register/index';
import { AuthGuard } from './shared/index';

const appRoutes: Routes = [
    { path: '', component: HomeComponent, canActivate: [AuthGuard] },
    { path: 'login', component: LoginComponent },
    { path: 'register', component: RegisterComponent },

    // otherwise redirect to home
    { path: '**', redirectTo: '' }
];

export const routing = RouterModule.forRoot(appRoutes);

app.module.ts是：

import { BrowserModule } from '@angular/platform-browser';
import { ModuleWithProviders, NgModule } from '@angular/core';
import { RouterModule } from '@angular/router';

import { AppComponent } from './app.component';
import {
  ApiService,
  AuthGuard,
  FooterComponent,
  HeaderComponent,
  JwtService,
  ProfilesService,
  SharedModule,
  UserService
} from './shared';
import { LoginComponent } from './login/login.component';
import { RegisterComponent } from './register/register.component';

import { routing } from './app.routing';

@NgModule({
  declarations: [
    AppComponent,
    FooterComponent,
    HeaderComponent,
    LoginComponent,
    RegisterComponent,
  ],
  imports: [
    SharedModule,
    BrowserModule,
    routing
  ],
  providers: [
    ApiService,
    AuthGuard,
    JwtService,
    ProfilesService,
    UserService
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

我希望当用户在http://localhost:4200/访问应用程序时显示这个html（这实际上是我的login.component.html）

<div class="auth-page">
  <div class="container page">
    <div class="row">

      <div class="col-md-6 col-md-offset-3">
        <h2>Login</h2>
        <form name="form" (ngSubmit)="f.form.valid && login()" #f="ngForm" novalidate>
          <div class="form-group" [ngClass]="{ 'has-error': f.submitted && !username.valid }">
            <label for="username">Username</label>
            <input type="text" class="form-control" name="username" [(ngModel)]="model.username" #username="ngModel" required />
            <div *ngIf="f.submitted && !username.valid" class="help-block">Username is required</div>
          </div>
          <div class="form-group" [ngClass]="{ 'has-error': f.submitted && !password.valid }">
            <label for="password">Password</label>
            <input type="password" class="form-control" name="password" [(ngModel)]="model.password" #password="ngModel" required />
            <div *ngIf="f.submitted && !password.valid" class="help-block">Password is required</div>
          </div>
          <div class="form-group">
            <button [disabled]="loading" class="btn btn-primary">Login</button>
            <img *ngIf="loading" src="data:image/gif;base64,R0lGODlhEAAQAPIAAP///wAAAMLCwkJCQgAAAGJiYoKCgpKSkiH/C05FVFNDQVBFMi4wAwEAAAAh/hpDcmVhdGVkIHdpdGggYWpheGxvYWQuaW5mbwAh+QQJCgAAACwAAAAAEAAQAAADMwi63P4wyklrE2MIOggZnAdOmGYJRbExwroUmcG2LmDEwnHQLVsYOd2mBzkYDAdKa+dIAAAh+QQJCgAAACwAAAAAEAAQAAADNAi63P5OjCEgG4QMu7DmikRxQlFUYDEZIGBMRVsaqHwctXXf7WEYB4Ag1xjihkMZsiUkKhIAIfkECQoAAAAsAAAAABAAEAAAAzYIujIjK8pByJDMlFYvBoVjHA70GU7xSUJhmKtwHPAKzLO9HMaoKwJZ7Rf8AYPDDzKpZBqfvwQAIfkECQoAAAAsAAAAABAAEAAAAzMIumIlK8oyhpHsnFZfhYumCYUhDAQxRIdhHBGqRoKw0R8DYlJd8z0fMDgsGo/IpHI5TAAAIfkECQoAAAAsAAAAABAAEAAAAzIIunInK0rnZBTwGPNMgQwmdsNgXGJUlIWEuR5oWUIpz8pAEAMe6TwfwyYsGo/IpFKSAAAh+QQJCgAAACwAAAAAEAAQAAADMwi6IMKQORfjdOe82p4wGccc4CEuQradylesojEMBgsUc2G7sDX3lQGBMLAJibufbSlKAAAh+QQJCgAAACwAAAAAEAAQAAADMgi63P7wCRHZnFVdmgHu2nFwlWCI3WGc3TSWhUFGxTAUkGCbtgENBMJAEJsxgMLWzpEAACH5BAkKAAAALAAAAAAQABAAAAMyCLrc/jDKSatlQtScKdceCAjDII7HcQ4EMTCpyrCuUBjCYRgHVtqlAiB1YhiCnlsRkAAAOwAAAAAAAAAAAA==" />
          </div>
        </form>
      </div>
    </div>
  </div>
</div>

但奇怪的是，当我访问网址http://localhost:4200时，我看到以下屏幕：

所以有两个问题：

• 为什么网址http://localhost:4200/#/而不是http://localhost:4200/

• 我正在做什么有什么问题，以便我可以显示Login html？

请帮忙！