如何在注销时清空angular4应用程序的缓存

logout() {
  localStorage.clear();
  sessionStorage.clear();
}

import { HttpClient } from '@angular/common/http';

constructor(private http: HttpClient) {}

logout() {
  this.http.get('/api/logout', { headers: { 'Cache-Control': 'no-cache' } }).subscribe();
}

import { RouteReuseStrategy, DefaultUrlSerializer, ActivatedRouteSnapshot, DetachedRouteHandle } from '@angular/router';

export class NoReuseRouteStrategy implements RouteReuseStrategy {
  shouldDetach(route: ActivatedRouteSnapshot): boolean {
    return false;
  }

  store(route: ActivatedRouteSnapshot, handle: DetachedRouteHandle): void {}

  shouldAttach(route: ActivatedRouteSnapshot): boolean {
    return false;
  }

  retrieve(route: ActivatedRouteSnapshot): DetachedRouteHandle | null {
    return null;
  }

  shouldReuseRoute(future: ActivatedRouteSnapshot, curr: ActivatedRouteSnapshot): boolean {
    return false;
  }
}

import { RouterModule } from '@angular/router';
import { NoReuseRouteStrategy } from './no-reuse-route-strategy';

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  providers: [{ provide: RouteReuseStrategy, useClass: NoReuseRouteStrategy }]
})
export class AppModule {}