Angular -基于用户登录Id的重定向

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

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

  canActivate(): boolean {
    // 在这里进行用户登录状态和权限的检查
    const isLoggedIn = ...; // 检查用户是否已登录
    const userRole = ...; // 获取用户角色或权限级别

    if (isLoggedIn && userRole === 'admin') {
      return true; // 允许访问
    } else {
      this.router.navigate(['/login']); // 重定向到登录页面
      return false; // 禁止访问
    }
  }
}

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

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

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