17.编程式导航（js驱动跳转）和路由的hash模式与History模式

编程式导航

与router-link导航相比，router-link类似于a标签，编程式导航相当于ajax，导航用页面跳转

Home.vue

<template>
    <div>
        <h2>{{msg}}</h2>
        <br>
        <button @click="goNew()">通过js跳转到新闻页面</button>
        <br>
    </div>
</template>
<script>

export default {
  name: 'home',  
  data () {
    return {
        msg:'首页组件'
    }
  },
  methods:{
      goNew(){
        //   this.$router.push({path:'news'})
          this.$router.push({path:'vcontent/0'})
      }

  },
  components:{
  }
}
</script>
<style lang="scss" scoped>
h2{
    color: red;
}
</style>

hash模式与History模式

在main.js中加入：

mode:'history',//hash改为history模式

 main.js

import Vue from 'vue';
import App from './App.vue';

import VueResource from 'vue-resource';
Vue.use(VueResource)


import VueRouter from 'vue-router';
Vue.use(VueRouter)

// 1.创建组件，导入组件
import Home from './components/Home.vue';
import News from './components/News.vue';
import vContent from './components/vContent.vue';

import Good from './components/Goods.vue';

// 2.配置路由
const routes=[
  　　{path:'/home',component:Home},
  　　{path:'/news',component:News},

      {path:'/vcontent/:aid',component:vContent}, //动态路由

      {path:'*',redirect:'/home'}, //默认路由跳转到首页

      {path:'/goods',component:Good},
]
//注意，这里是routes，而不是routers

// 3.实例化VueRouter
const router=new VueRouter({
      mode:'history',//hash改为history模式
  　　routes//(缩写)相当于routers:routers
})

// 4.挂载
new Vue({
  el: '#app',
  router,
  render: h => h(App)
})

// 5.将<router-view></router-view>放在App.vue里面