页面使用角度路由器在浏览器中显示两次？

Question

Angular在默认端口localhost:4200上加载页面，我希望在应用程序构建时将其用作localhost:4200/specialtyquestions，并且该页面可以正常工作，但是在浏览器中显示两次页面，您知道这里的实现有误吗？

app-routing.module.ts

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { AppComponent } from './app.component';


const routes: Routes = [{
  path: 'specialtyquestions',
  component: AppComponent
},
{
  path: '',
  redirectTo: 'specialtyquestions',
  pathMatch: 'full'
}];


@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule]
})
export class AppRoutingModule { }

app.component.html

<app-navbar></app-navbar>
<div class="container-fluid">
    <div class="row">
        <div class="col-sm-5">
            <app-create-questions></app-create-questions>
        </div>
        <div class="col-sm-1">
            <div class="row">
                <button type="button" class="btn btn-primary" data-backdrop='static' (click)="openModal()" style="margin-top: 300px;" data-toggle="modal" data-target="#exampleModalLong">Start Formatting</button>
            </div>
        </div>
        <div class="col-sm-5">
            <app-format-questions></app-format-questions>
        </div>
    </div>
</div>
<h2>
    <router-outlet></router-outlet>
</h2>

图片

Answer 1

删除路由器插座 因为当您最后添加该标签时，它会再次运行该部分。因此，从末端移除该部分并检查

<app-navbar></app-navbar>
<div class="container-fluid">
    <div class="row">
        <div class="col-sm-5">
            <app-create-questions></app-create-questions>
        </div>
        <div class="col-sm-1">
            <div class="row">
                <button type="button" class="btn btn-primary" data-backdrop='static' (click)="openModal()" style="margin-top: 300px;" data-toggle="modal" data-target="#exampleModalLong">Start Formatting</button>
            </div>
        </div>
        <div class="col-sm-5">
            <app-format-questions></app-format-questions>
        </div>
    </div>
</div>

当您要从一页路由到另一页时，需要路由器部分 e.x. 127.0.0.1:4000/学生