> router-link 最后会转成 标签， 有时候页面不是a标签就不能用router-link来写
9.编程式路由导航
-
作用：不借助
<router-link>实现路由跳转，让路由跳转更加灵活 -
具体编码：
//$router的两个API this.$router.push({ name:'xiangqing', params:{ id:xxx, title:xxx } }) this.$router.replace({ name:'xiangqing', params:{ id:xxx, title:xxx } }) this.$router.forward() //前进 this.$router.back() //后退 this.$router.go() //可前进也可后退
> Banner.vue Message.vue
components
Banner.vue
<template>
<div class="col-xs-offset-2 col-xs-8">
<div class="page-header">
<h2>Vue Router Demo</h2>
<button @click="back">后退</button>
<button @click="forward">前进</button>
<button @click="test">测试一下go</button>
</div>
</div>
</template>
pages
About.vue
<template>
<h2>我是About的内容</h2>
</template>
Detail.vue
<template>
<ul>
<li>消息编号：{{id}}</li>
<li>消息标题：{{title}}</li>
</ul>
</template>
Home.vue
<template>
<div>
<h2>Home组件内容</h2>
<div>
<ul class="nav nav-tabs">
<li>
<router-link class="list-group-item" active-class="active" to="/home/news">News</router-link>
</li>
<li>
<router-link class="list-group-item" active-class="active" to="/home/message">Message</router-link>
</li>
</ul>
<router-view></router-view>
</div>
</div>
</template>
Message.vue
<template>
<div>
<ul>
<li v-for="m in messageList" :key="m.id">
<!-- 跳转路由并携带params参数，to的字符串写法 -->
<!-- <router-link :to="`/home/message/detail/${m.id}/${m.title}`">{{m.title}}</router-link> -->
<!-- 跳转路由并携带params参数，to的对象写法 -->
<router-link :to="{
name:'xiangqing',
query:{
id:m.id,
title:m.title
}
}">
{{m.title}}
</router-link>
<button @click="pushShow(m)">push查看</button>
<button @click="replaceShow(m)">replace查看</button>
</li>
</ul>
<hr>
<router-view></router-view>
</div>
</template>
News.vue
<template>
<ul>
<li>news001</li>
<li>news002</li>
<li>news003</li>
</ul>
</template>
router
index.js
// 该文件专门用于创建整个应用的路由器
import VueRouter from 'vue-router'
//引入组件
import About from '../pages/About'
import Home from '../pages/Home'
import News from '../pages/News'
import Message from '../pages/Message'
import Detail from '../pages/Detail'
//创建并暴露一个路由器
export default new VueRouter({
routes:[
{
name:'guanyu',
path:'/about',
component:About
},
{
path:'/home',
component:Home,
children:[
{
path:'news',
component:News,
},
{
path:'message',
component:Message,
children:[
{
name:'xiangqing',
path:'detail',
component:Detail,
//props的第一种写法，值为对象，该对象中的所有key-value都会以props的形式传给Detail组件。
// props:{a:1,b:'hello'}
//props的第二种写法，值为布尔值，若布尔值为真，就会把该路由组件收到的所有params参数，以props的形式传给Detail组件。
// props:true
//props的第三种写法，值为函数
props($route){
return {
id:$route.query.id,
title:$route.query.title,
a:1,
b:'hello'
}
}
}
]
}
]
}
]
})
App.vue
<template>
<div>
<div class="row">
<banner>
</banner></div>
<div class="row">
<div class="col-xs-2 col-xs-offset-2">
<div class="list-group">
<!-- 原始html中我们使用a标签实现页面的跳转 -->
<!-- <a class="list-group-item active" href="./about.html">About</a> -->
<!-- <a class="list-group-item" href="./home.html">Home</a> -->
<!-- Vue中借助router-link标签实现路由的切换 -->
<router-link class="list-group-item" active-class="active" to="/about">About</router-link>
<router-link class="list-group-item" active-class="active" to="/home">Home</router-link>
</div>
</div>
<div class="col-xs-6">
<div class="panel">
<div class="panel-body">
<!-- 指定组件的呈现位置 -->
<router-view></router-view>
</div>
</div>
</div>
</div>
</div>
</template>
main.js
//引入Vue
import Vue from 'vue'
//引入App
import App from './App.vue'
//引入VueRouter
import VueRouter from 'vue-router'
//引入路由器
import router from './router'
//关闭Vue的生产提示
Vue.config.productionTip = false
//应用插件
Vue.use(VueRouter)
//创建vm
new Vue({
el:'#app',
render: h => h(App),
router:router
})