Dynamically Adding Route Components

Rather than define each route's component separately, use RouterOutlet which serves as a component placeholder; Angular dynamically adds the component for the route being activated into the <router-outlet></router-outlet> element.

  1. import { Component } from '@angular/core';
  3. @Component({
  4.   selector: 'app',
  5.   template: `
  6.     <nav>
  7.       <a routerLink="/component-one">Component One</a>
  8.       <a routerLink="/component-two">Component Two</a>
  9.     </nav>
  11.     <router-outlet></router-outlet>
  12.     <!-- Route components are added by router here -->
  13.   `
  14. })
  15. export class AppComponent {}

In the above example, the component corresponding to the route specified will be placed after the <router-outlet></router-outlet> element when the link is clicked.

View Example

View examples running in full screen mode to see route changes in the URL.

原文: https://angular-2-training-book.rangle.io/handout/routing/routeroutlet.html