Angular中的路由 路由概述 配置路由 路由重定向 路由選中 默認路由

1.命令創建項目，不按照依賴：

ng new angualrdemo08 --skip-install
安裝依賴：
cnpm install

2. 創建需要的組件

ng g component home
ng g component news
ng g component newscontent

3. 找到 app-routing.module.ts 配置路由

引入組件
import { HomeComponent } from './home/home.component';
import { NewsComponent } from './news/news.component';
import { NewscontentComponent } from './newscontent/newscontent.component';

配置路由

const routes: Routes = [
{path: 'home', component: HomeComponent},
{path: 'news', component: NewsComponent},
{path: 'newscontent/:id', component: NewscontentComponent},
{
path: '',
redirectTo: '/home',
pathMatch: 'full'
}
];

4. 找到 app.component.html 根組件模板，配置 router-outlet 顯示動態加載的路由

<h1>
<a routerLink="/home">首頁</a>
<a routerLink="/news">新聞</a>
</h1>
<router-outlet></router-outlet>

二、Angular routerLink 跳轉頁面 默認路 由

<a routerLink="/home">首頁</a>
<a routerLink="/news">新聞</a>

//匹配不到路由的時候加載的組件 或者跳轉的路由
{
path: '**', /*任意的路由*/
// component:HomeComponent
red

三、Angular routerLinkActive 設 置 routerLink 默認選中路由

<h1>
<a routerLink="/home" routerLinkActive="active">首頁</a>
<a routerLink="/news" routerLinkActive="active">新聞</a>
</h1>

<h1>
<a [routerLink]="[ '/home' ]" routerLinkActive="active">首頁</a>
<a [routerLink]="[ '/news' ]" routerLinkActive="active">新聞</a>
</h1>

.active{
color:red;
}

四、動態路由

1.配置動態路由
const routes: Routes = [
{path: 'home', component: HomeComponent},
{path: 'news', component: NewsComponent},
{path: 'newscontent/:id', component: NewscontentComponent},
{
path: '',
redirectTo: '/home',
pathMatch: 'full'
}
];
2.跳轉傳值
<a [routerLink]="[ '/newscontent/',aid]">跳轉到詳情</a>
<a routerLink="/newscontent/{{aid}}">跳轉到詳情</a>
3.獲取動態路由的值

import { ActivatedRoute} from '@angular/router';
constructor( private route: ActivatedRoute) {
}
ngOnInit() {
console.log(this.route.params);
this.route.params.subscribe(data=>this.id=data.id);
}

 

五、動態路由的 js 跳轉

1. 引入
import { Router } from '@angular/router';
2.初始化
export class HomeComponent implements OnInit {
constructor(private router: Router) {
}
ngOnInit() {
}
goNews(){
// this.router.navigate(['/news', hero.id]);
this.router.navigate(['/news']);
}
}
3.路由跳轉
this.router.navigate(['/news', hero.id]);

六、路由 get 傳值 js 跳轉

1. 引入 NavigationExtras
import { Router ,NavigationExtras} from '@angular/router';
2.定義一個 goNewsContent 方法執行跳轉，用 NavigationExtras 配置傳參。
goNewsContent(){
let navigationExtras: NavigationExtras = {
queryParams: { 'session_id': '123' },
fragment: 'anchor'
};
this.router.navigate(['/news'],navigationExtras);
}
3.獲取 get 傳值
constructor(private route: ActivatedRoute) {
console.log(this.route.queryParams);
}

七、父子路由

1. 創建組件引入組件
import { NewsaddComponent } from './components/newsadd/newsadd.component';
import { NewslistComponent } from './components/newslist/newslist.component';

2. 配置路由
{
path: 'news',
component:NewsComponent,
children: [
{
path:'newslist',
component:NewslistComponent
},
{
path:'newsadd',
component:NewsaddComponent
}
]
}
3. 父組件中定義 rout