router 路由和嵌套路由

实现ng2-router路由,嵌套路由

首先配置angular2的时候router模块已经下载,只需要引入即可

import {RouterModule, Routes} from "@angular/router";

我们要创建一个嵌套路由,所以需要创建以下文件

index.html

app.module.ts

app.component.ts

home.component.ts

list.component.ts

list-one.component.ts

list-two.component.ts

实现效果:

路由,单机“首页”加载home.component.ts

单机"列表“加载list.component.ts

列表中包含嵌套路由,tab页

单机"标签一"加载list-one.component.ts

单机"标签二"加载list-one.component.ts

开始配置

index.html界面配置两点

<head>标签中引入 <meta href="https://www.jb51.net/" />

引入路由代码显示标签 引入主组件标签 <my-app></my-app>

就这么简单, index.html界面配置完毕

app.module.ts界面配置路由

import {BrowserModule} from "@angular/platform-browser"; import {NgModule} from "@angular/core"; import {RouterModule, Routes} from "@angular/router"; // 表单 双向数据绑定 import {FormsModule} from "@angular/forms"; import {AppComponent} from "./app.component"; // List中包含两个tab子组件 import {ListComponent} from "./list.component"; import {ListOneComponent} from "./list-one.component"; import {ListTwoComponent} from "./list-two.component"; import {HomeComponent} from "./home.component"; // 定义路由, bootstrap默认加载组件就是AppComponent,所以他就是主页导航页,然后添加的路由都在他的模板中。 // 可以所有代码写在NgModule中, 也可以这样自定义常量,然后使用。 // 定义常量 嵌套自路由 const appChildRoutes: Routes = [ {path: "one", component: ListOneComponent}, {path: "two", component: ListTwoComponent}, // 如果地址栏中输入没有定义的路由就跳转到one路由界面 { path: '**', redirectTo: "one" } ]; // 定义常量 路由 const appRoutes:Routes = [ {path: '', component: HomeComponent}, { path: 'list', component: ListComponent, children: appChildRoutes ]; // 引用定义的路由 @NgModule({ imports: [ BrowserModule, FormsModule, RouterModule.forRoot(appRoutes) ], declarations: [ AppComponent, ListComponent, HomeComponent, ListOneComponent, ListTwoComponent ], bootstrap: [AppComponent] }) export class AppModule { }

这样就完成了嵌套路由的配置

显示路由内容

app.component.ts

import {Component} from "@angular/core"; @Component({ selector: "my-app", // templateUrl: "../views/one.html" template: ` <div> <!--使用了bootstrap样式的导航,routerLinkActive,表示路由激活的时候,谈价active类样式--> <ul> <li routerLinkActive="active"><a routerLink="home">首页</a></li> <li routerLinkActive="active"><a routerLink="contact">联系我们</a></li> <li routerLinkActive="active"><a routerLink="product">产品</a></li> </ul> <!--路由内容显示区域--> <router-outlet></router-outlet> </div> ` }) export class AppComponent { }

list.component.ts

import {Component} from "@angular/core"; @Component({ selector: "my-list", // templateUrl: "../views/list.html" template: ` <div> <!-- 子路由连接 --> <a routerLink="one">one</a> <a routerLink="two">two</a> <!-- 路由内容显示标签 --> <router-outlet></router-outlet> </div> ` }) export class ListComponent { name = "list"; }

list-one.component.ts

import {Component} from "@angular/core" @Component({ selector: "my-list-one", template:` {{name}} ` }) export class ListOneComponent { name = "list-one"; }

list-two.component.ts同理

获取路由参数id (about:id) 添加模块 ActivatedRoute

import {ActivatedRoute} from "@angular/router"; export class AboutList { id: Object; constructor(public route:ActivatedRoute) { this.id = {}; } ngOnInit() { this.route.params.subscribe(params => { this.id = params // {id: "xxx"} }); } }

直接获取id值

this.route.snapshot.params["id"] 补助: 路由中的界面跳转 import {Router} from "@angular/router"; constructor(public router: Router) { // 相当于window.location.href,界面跳转 router.navigateByUrl('home'); }

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