当路由器激活给定类型的组件时接收通知

import { Injectable } from '@angular/core';
import { CanActivate, Router } from '@angular/router';

@Injectable()
export class ActivateComponentGuard implements CanActivate {
  constructor(private router: Router) {}

  canActivate(): boolean {
    // 在此处判断是否满足条件来决定是否允许激活组件
    const shouldActivateComponent = true; // 根据实际需求进行判断

    if (!shouldActivateComponent) {
      // 如果不满足条件，可以重定向到其他页面或显示错误信息
      this.router.navigate(['/error-page']);
      return false;
    }

    return true;
  }
}

import { NgModule } from '@angular/core';
import { RouterModule, Routes } from '@angular/router';

import { ActivateComponentGuard } from './activate-component.guard';
import { MyComponent } from './my.component';

const routes: Routes = [
  {
    path: 'my-component',
    component: MyComponent,
    canActivate: [ActivateComponentGuard]
  }
];

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