vue-router用于实现页面的跳转，例如点击Home按钮，进入Home页面，点击About按钮，进入About页面

一、基本路由

1.在src中新建两个vue文件，分别为home.vue和about.vue

<template>
  <div>
    <h1>Home</h1>
    <p>{{msg}}</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      msg: "这是Home页"
    };
  }
};
</script>

<template>
  <div>
    <h1>About</h1>
    <p>{{msg}}</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      msg: "这是About页"
    };
  }
};
</script>

2.在App.vue中定义<router-link>和<router-view>

<template>
  <div id="app">
    <img src="./assets/logo.png">
    <header>
      <router-link to="/home">Home</router-link>
      <router-link to="/About">About</router-link>
    </header>
    <router-view/>
  </div>
</template>

3.在index.js中定义路由，一组路由包含path和component两部分，vue通过比对path，跳转到相应的component

import Vue from 'vue'
import Router from 'vue-router'

import home from '../components/home.vue'
import about from '../components/about.vue'

Vue.use(Router)

export default new Router({
  routes: [
    {
      path: '/home',
      component: home,
    },
    {
      path: '/about',
      component: about
    }
  ]
})

4.把路由注入到根实例

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

new Vue({
  el: '#app',
  router,
  components: { App },
  template: '<App/>'
})

5.redirect 定义重定向,首次进入页面路径是'/'，页面没有显示任何内容，使用重定向能使页面首次加载就会显示home页面

export default new Router({
  routes: [
    {
      path: '/home',
      component: home,
    },
    {
      path: '/about',
      component: about
    },
    {
      path: '/',
      redirect: '/home'
    }
  ]
})

二、动态路由

1.在App.vue添加两个<router-link>

      <router-link to="/user/123">User123</router-link>
      <router-link to="/user/456">User456</router-link>

2.在index.js中配置动态路由

export default new Router({
  routes: [
    {
      path: '/home',
      component: home,
    },
    {
      path: '/about',
      component: about
    },
    {
      path: '/user/:id',
      component: user
    },
    {
      path: '/',
      redirect: '/home'
    }
  ]
})

记得将组件导入进来

import user from '../components/user.vue'

3.添加user.vue组件

<template>
  <div>
    <h1>User</h1>
    <div>User组件，动态部分是{{dynamicSegment}}</div>
  </div>
</template>

<script>
export default {
  computed: {
    dynamicSegment() {
      return this.$route.params.id;
    }
  }
};
</script>

computed定义dynamicSegment属性，用于获取动态id

三、嵌套路由

1.在home.vue中添加<router-link>

<template>
  <div>
    <h1>Home</h1>
    <!-- <p>{{msg}}</p> -->
    <p>
      <router-link to="/home/phone">手机</router-link>
      <router-link to="/home/tablet">平板</router-link>
      <router-link to="/home/computer">电脑</router-link>
    </p>
    <router-view></router-view>
  </div>
</template>

2.在index.js定义路由

export default new Router({
  routes: [
    {
      path: '/home',
      component: home,
      children:[
        {
          path: 'phone',
          component: phone
        },
        {
          path: 'tablet',
          component: tablet
        },
        {
          path: 'computer',
          component: computer
        },
        //当进入到home时,显示默认组件
        {
          path: '',
          component: phone
        }
      ]
    },
    {
      path: '/about',
      component: about
    },
    {
      path: '/user/:id',
      component: user
    },
    {
      path: '/',
      redirect: '/home'
    }
  ]
})

3.添加phone.vue，tablet.vue，computer.vue组件
以phone.vue为例

<template>
  <div>
    <h2>Phone</h2>
    <p>{{msg}}</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      msg: "这是Phone页"
    };
  }
};
</script>

贴上目录结构图

目录结构.jpg

【参考文章】

vue-router基本使用：https://www.cnblogs.com/SamWeb/p/6610733.html