/*路由基本模型*/

/*導入RouterModule，Routes類型*/
import { RouterModule, Routes } from '@angular/router';
import { LoginComponent } from "./login/login.component";

/*定義路由const表示不可改變*/
const routers: Routes = [
 /*
  path：字符串，表示默認登入,
  path為路徑 /login component:組件
  component：組件
  pathMatch：為字符串默認為前綴匹配 "prefix"; "full" 為完全匹配。
  redirectTo：指向為路徑，既path
  outlet：字符串，路由目標，面對多個路由的情況
  children：Routes 子路由相關(guān)
  */
 { path: '', component: LoginComponent },
 // path:路徑 /detail/1 :id代表參數(shù)相關(guān)
 { path: 'detail/:id', component: LoginComponent },
 // 懶加載子模塊, 子模塊需要配置路由設置啟動子組件，如果這樣設置了路由，需要在子模塊中再定義路由
 { path: 'other', loadChildren:"./demo/demo.module#demoModule" },
 // 重定向，路徑為** 表示不能識別的路徑信息，重定向到相關(guān)路徑下
 { path: '**', pathMatch: 'full', redirectTo: '' }
];

/*將路由設置導出,子模塊中的路由使用 forChild 而不是 forRoot*/
export const appRouter = RouterModule.forRoot(routers);

@NgModule({
 declarations: [
 ......
 ],
 imports: [
 ......
  appRouter
 ]
})

<router-outlet></router-outlet>

{ path: 'news', outlet: 'let1', component: NewsComponent },
{ path: 'news', outlet: 'let2', component: News2Cmponent },
//模板中
<router-outlet name="let1"></router-outlet>
<router-outlet name="let2"></router-outlet>

<a routerLink="/detail/1" routerLinkActive="active">detail</a>
<a [routerLink]="['/detail', news.id]">{{news.title}}</a>
<a [routerLink]="[{ outlets: { let2: ['news'] } }]">Contact</a>

this.router.navigate(['/detail', this.news.id])
this.router.navigate([{ outlets: { let2: null }}]);

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

@Injectable()
export class AuthService implements CanActivate {
 canActivate() {
  // 這里判斷登錄狀態(tài), 返回 true 或 false
  return true;
 }
}

{ path: '', component: LoginComponent, canActivate:[LoginComponent] },

import { Injectable }   from '@angular/core';
import { CanDeactivate, ActivatedRouteSnapshot, RouterStateSnapshot }  from '@angular/router';

// CanDeactivateComponent 是定義的接口,見下段代碼
import { CanDeactivateComponent } from './can-deactivate.omponent';

@Injectable()
export class DeacService implements CanDeactivate<CanDeactivateComponent> {
 canDeactivate(
  canDeactivateComponent: CanDeactivateComponent,
  activatedRouteSnapshot: ActivatedRouteSnapshot,
  routerStateSnapshot: RouterStateSnapshot
 ) {
  // 目標路由和當前路由
  console.log(activatedRouteSnapshot);
  console.log(routerStateSnapshot);

  // 判斷并返回
  return canDeactivateComponent.canDeactivate ? canDeactivateComponent.canDeactivate() : true

 }
}

// 接口組件, 返回 true 或 false 如表單發(fā)生改變則調(diào)用對話框服務
export interface CanDeactivateComponent {
 canDeactivate: () => Observable<boolean> | Promise<boolean> | boolean;
}

{
 path: ...,
 canDeactivate: [DeacService],
  component: ...
}

providers: [
 DeactivateGuardService
]