详解Angular4中路由Router类的跳转navigate

2017-06-16 JavaScript
这篇文章主要介绍了详解Angular4中路由Router类的跳转navigate,具有一定的参考价值,感兴趣的小伙伴们可以参考一下

最近一直在学习angular4,它确实比以前有了很大的变化和改进,好多地方也不是那么容易就能理解,好在官方的文档和例子是中文,对英文不太好的还是有很大帮助去学习。

在学习的过程中路由(router)机制是离不开的,并且好多地方都要用到。

首先路由配置Route:
 

import { NgModule }       from '@angular/core';
import { RouterModule, Routes } from '@angular/router';
  
import { HomeComponent }  from './home.component';
import { LoginComponent }   from './login.component';
import { RegisterComponent } from './register.component';
  
 const routes: Routes = [
  { path: '', redirectTo: '/home', pathMatch: 'full' },
  { path: 'home', component: HomeComponent },
  { path: 'login', component: LoginComponent },
  { path: 'heroes',   component: RegisterComponent }
 ];
  
 @NgModule({
  imports: [ RouterModule.forRoot(routes) ],
  exports: [ RouterModule ]
 })
 export class AppRoutingModule {}

其次路由跳转Router.navigate

navigate(commands: any[], extras?: NavigationExtras) : Promise<boolean>

interface NavigationExtras {
  relativeTo : ActivatedRoute
  queryParams : Params
  fragment : string
  preserveQueryParams : boolean
  queryParamsHandling : QueryParamsHandling
  preserveFragment : boolean
  skipLocationChange : boolean
  replaceUrl : boolean
}

1.以根路由跳转/login

this.router.navigate(['login']);

2.设置relativeTo相对当前路由跳转,route是ActivatedRoute的实例,使用需要导入ActivatedRoute

this.router.navigate(['login', 1],{relativeTo: route});

3.路由中传参数 /login?name=1

this.router.navigate(['login', 1],{ queryParams: { name: 1 } });

4.preserveQueryParams默认值为false,设为true,保留之前路由中的查询参数/login?name=1 to /home?name=1

this.router.navigate(['home'], { preserveQueryParams: true });

5.路由中锚点跳转 /home#top

this.router.navigate(['home'],{ fragment: 'top' });

6.preserveFragment默认为false,设为true,保留之前路由中的锚点/home#top to /role#top

this.router.navigate(['/role'], { preserveFragment: true });

7.skipLocationChange默认为false,设为true,路由跳转时浏览器中的url会保持不变,但是传入的参数依然有效

this.router.navigate(['/home'], { skipLocationChange: true });

8.replaceUrl默认为true,设为false,路由不会进行跳转

this.router.navigate(['/home'], { replaceUrl: true });
原文链接:http://www.cnblogs.com/ZHF/p/6971901.html