1.通过超链接导航
使用一下命令新建一个项目:
ng new router --routing // 不加-routing参数,可以在app.module.ts配置路由
生成项目时添加了–routing参数后,会多生成一个app-routing.module.ts文件:
import { NgModule } from '@angular/core'; import { Routes,RouterModule } from '@angular/router'; const routes: Routes = [ { path:'',children: [] } ]; @NgModule({ imports: [RouterModule.forRoot(routes)],exports: [RouterModule],providers:[] }) export class AppRoutingModule { }
在app.module.ts中也会多引入AppRoutingModule:
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import {FormsModule} from '@angular/forms'; import {HttpModule} from '@angular/http'; import { AppRoutingModule } from './app-routing.module'; import { AppComponent } from './app.component'; @NgModule({ declarations: [ AppComponent ],imports: [ BrowserModule,FormsModule,HttpModule,AppRoutingModule ],providers: [],bootstrap: [AppComponent] }) export class AppModule { }
在app.component.html中会加入router-outlet
<h1> {{title}} </h1> <router-outlet></router-outlet>
新生成两个组件ng g component home,ng g component product
然后修改app-routing.modules.ts,为了保证通用性,这里写地址的时候不要在前面加上/
const routes: Routes = [ {path:'',component:HomeComponent},{path:'product',component:ProductComponent} ];
修改app.component.html
<a [routerLink]="['/']">主页</a> <a [routerLink]="['/product']">商品详情</a> <router-outlet></router-outlet>
此时,当你访问localhost:4200的时候显示的是home works!,当你点击商品详情,会显示product works!并且地址变成了localhost:4200/product
2.通过触发事件导航
修改app.component.html和app.component.ts
<a [routerLink]="['/']">主页</a> <a [routerLink]="['/product']">商品详情</a> <input type="button" value="商品详情" (click)="toProductDetails()"> <router-outlet></router-outlet>
import { Component } from '@angular/core'; import {Router} from "@angular/router"; @Component({ selector: 'app-root',templateUrl: './app.component.html',styleUrls: ['./app.component.css'] }) export class AppComponent { title = 'app'; constructor(private router: Router){} toProductDetails(){ this.router.navigate(['/product']); } }
运行程序,点击按钮,下边就会显示product works!
3.配置404页面路由
新生成一个组件ng g component code404
修改app-routing.module.ts
const routes: Routes = [ {path:'',component:ProductComponent},{path:'**',component:Code404Component} ];
显示路由是从上往下匹配地址,如果把{path:’**’,component:Code404Component}放到前面不管访问那个页面都会显示code404了。所以具有通用性的路由要放到最后边。
原文链接:https://www.f2er.com/angularjs/145201.html