在angular2中，如果用户未登录，因此无法访问已登录的视图组件代码，我如何重定向该用户？

ng generate service auth-guard

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

@Injectable({
  providedIn: 'root'
})
export class AuthGuard implements CanActivate {

  constructor(private router: Router) { }

  canActivate(): boolean {
    // 检查用户是否已登录，这里假设有一个名为isLoggedIn的布尔变量来表示登录状态
    const isLoggedIn = false; // 根据实际情况设置登录状态

    if (!isLoggedIn) {
      // 未登录，重定向到登录页面
      this.router.navigate(['/login']);
      return false;
    }

    return true;
  }
}

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { HomeComponent } from './home.component';
import { LoginComponent } from './login.component';
import { AuthGuard } from './auth.guard';

const routes: Routes = [
  { path: '', component: HomeComponent, canActivate: [AuthGuard] },
  { path: 'login', component: LoginComponent },
];

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

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { AuthGuard } from './auth.guard';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule
  ],
  providers: [AuthGuard], // 添加AuthGuard服务到providers数组中
  bootstrap: [AppComponent]
})
export class AppModule { }