为什么守卫不保护根路由，只保护孩子？

Question

我有一个包含3个路由的路由模块：

const routes: Routes = [
  {
    path: '',
    component: SystemComponent,
    canActivate: [AuthGuard],
    children: [
      {path: 'vds-list', component: VdsListComponent},
      {path: 'phone-list', component: PhonesListComponent}
    ]
  }
];
@NgModule({
  imports: [
    RouterModule.forChild(routes)
  ],
  exports: [
    RouterModule
  ]
})
export class SystemRoutingModule {
}

，但AuthGuard仅保护子路由vds-list和phone-list。这是一个问题，因为我也需要保护根路由/。

更新1 AuthGuard

@Injectable()
export class AuthGuard implements CanActivate, CanActivateChild {
  constructor(private authService: AuthService, private router: Router) {
  }
  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean {
    if (this.authService.isLoggedIn) {
      return true;
    } else {
      this.router.navigate(['/login'], {
        queryParams: {
          accessDenied: true
        }
      });
      return false;
    }
  }
  canActivateChild(childRoute: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean {
    return this.canActivate(childRoute, state);
  }
}

和AuthService：

@Injectable()
export class AuthService {
  private loggedIn = false;
  get isLoggedIn() {
    return this.loggedIn;
  }
  constructor(private router: Router) {
  }
  login(user: User) {
    this.loggedIn = true;
    window.localStorage.setItem('user', JSON.stringify(user));
    this.router.navigate(['/vds-list']);
  }
  logout() {
    this.loggedIn = false;
    window.localStorage.clear();
    this.router.navigate(['/login']);
  }
}

Answer 1

您必须调整authguard。它既需要为父母进行Canactivate方法，又需要为孩子的Canactivatechild方法。

@Injectable()
export class AuthGuard implements CanActivate, CanActivateChild {
  constructor(private authService: AuthService, private router: Router) {}
  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
      let url: string = state.url;
      return this.check(url);
  }
  canActivateChild(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
      return this.canActivate(route, state);
  }
}