可以创建一个 Map 来存储组件实例，使用自定义路由重用策略进行处理，并在销毁时调用其 ngOnDestroy 方法。

下面是示例代码：

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

export class CustomRouteReuseStrategy implements RouteReuseStrategy {
  private handlers: Map = new Map();

  shouldDetach(route: ActivatedRouteSnapshot): boolean {
    return true;
  }

  store(route: ActivatedRouteSnapshot, handle: DetachedRouteHandle): void {
    this.handlers.set(route.routeConfig.path, handle);
  }

  shouldAttach(route: ActivatedRouteSnapshot): boolean {
    return this.handlers.has(route.routeConfig.path);
  }

  retrieve(route: ActivatedRouteSnapshot): DetachedRouteHandle {
    return this.handlers.get(route.routeConfig.path);
  }

  shouldReuseRoute(future: ActivatedRouteSnapshot, curr: ActivatedRouteSnapshot): boolean {
    return future.routeConfig === curr.routeConfig && JSON.stringify(future.params) === JSON.stringify(curr.params);
  }

  ngOnDestroy() {
    for (let handle of this.handlers.values()) {
      handle['componentRef'].instance.ngOnDestroy();
    }
  }
}

在上述代码中，我们创建了一个 handlers Map，它存储了路由路径和 DetachedRouteHandle 的键值对。该方案会在应用销毁时枚举存储的 DetachedRouteHandle，并在它的 componentRef 上调用 ngOnDestroy。

要使用该自定义路由重用策略，只需在 app.module 中进行注册：

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

import { AppComponent } from './app.component';
import { CustomRouteReuseStrategy } from './custom-route-reuse-strategy';

@NgModule({
  imports: [
    BrowserModule,
    RouterModule.forRoot([...]),
  ],
  providers: [
    { provide: RouteReuseStrategy, useClass: CustomRouteReuseStrategy }
  ],
  declarations: [
    AppComponent,
  ],
  bootstrap: [