嵌套路由

实际生活中的应用界面，通常由多层嵌套的组件组合而成。同样地，URL 中各段动态路径也按某种结构对应嵌套的各层组件，例如：

index.js, 实现首页嵌套了 user/profile 和 user/list

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

import Main from '../views/Main'
import Login from '../views/Login'

import Profile from "../views/user/Profile"
import List from "../views/user/List"

Vue.use(Router);

export default new Router({
    routes: [
      {
        path: '/main',
        name: 'main',
        component: Main,    //嵌套路由
        children: [
          {
            path: '/user/profile',
            name: 'profile',
            component: Profile
          },
          {
            path: '/user/list',
            name: 'list',
            component: List
          }
        ]
      },

      {
        path: '/login',
        name: 'login',
        component: Login
      }
    ]
});

完整代码

Main.vue(利用了Element-UI的设计)

<template>
  <div>
    <el-container>
      <el-aside width="200px">

        <el-menu :default-openeds="['1']">

          <el-submenu index="1">
            <template slot="title"><i class="el-icon-caret-right"></i>用户管理</template>
            <el-menu-item-group>
              <el-menu-item index="1-1">
                <router-link to="/user/profile">个人信息</router-link>
              </el-menu-item>
              <el-menu-item index="1-2">
                <router-link to="/user/list">用户列表</router-link>
              </el-menu-item>
            </el-menu-item-group>
          </el-submenu>

          <el-submenu index="2">
            <template slot="title"><i class="el-icon-caret-right"></i>内容管理</template>
            <e1-menu-item-group>
              <el-menu-item index="2-1">分类管理</el-menu-item>
              <el-menu-item index="2-2">内容列表</el-menu-item>
            </e1-menu-item-group>
          </el-submenu>

          <el-submenu index="3">
            <template slot="title"><i class="el-icon-caret-right"></i>用户管理</template>
            <e1-menu-item-group>
              <el-menu-item index="3-1">用户设置</el-menu-item>
              <el-menu-item index="2-2">内容列表</el-menu-item>
            </e1-menu-item-group>
          </el-submenu>

        </el-menu>

      </el-aside>
    <el-container>
      <el-header style="text-align: right; font-size: 12px">
        <el-dropdown>
          <i class="el-icon-setting" style="margin-right:15px"></i>
          <el-dropdown-menu slot="dropdown">
            <el-dropdown-item>个人信息</el-dropdown-item>
            <el-dropdown-item>退出登录</el-dropdown-item>
          </el-dropdown-menu>
        </el-dropdown>
      </el-header>

      <el-main>
        <router-view/>
      </el-main>

    </el-container>
    </el-container>
  </div>
</template>

<script>
    export default {
        name: "Main"
    }
</script>

<style scoped>
  .el-header {
    background-color: #048bd1;
    color: #333;
    line-height: 60px;
  }

  .el-aside {
    color: #333;
  }
</style>

Login.vue(不变)

<template>
  <div>
    <el-card class="box-card">
          <el-form ref="loginForm" :model="form" :rules="rules" label-width="80px" class="login-box">
              <h3 class="login-title">欢迎登录</h3>
              <el-form-item label="账号" prop="username">
                <el-input type="text" placeholder="请输入账号" v-model="form.username"/>
              </el-form-item>
              <el-form-item label="密码" prop="password">
                <el-input type="password" placeholder="请输入密码" v-model="form.password"/>
              </el-form-item>
              <el-form-item>
                <el-button type="primary" v-on:click="onSubmit('loginForm')">登录</el-button>
              </el-form-item>
          </el-form>
      </el-card>

    <el-dialog
      title="温馨提示"
      :visible.sync="dialogVisible"
      width="30%"
      :before-close="handleClose">
      <span>请输入账号和密码</span>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="dialogVisible = false">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>


<script>
  export  default {
    name:"Login",
    data(){
      return {
        form:{
          username: '',
          password: ''
        },
        //表单验证，需要再el-form-item 元素中增加prop属性
        rules:{
          username: [
            {required:true,message:'账号不能为空',trigger:'blur'}
          ],
          password: [
            {required: true,message: '密码不能为空',trigger:'blur'}
          ]
        },
        //对话框显示和隐藏
        dialogVisible:false
      }
    },
    methods:{
      onSubmit(formName) {
        //为表单绑定验证功能
        this.$refs[formName].validate((valid) =>{
          if (valid){
            //使用 vue-router路由到指定页面，该方式称之为编程式导航
            this.$router.push("/main");
          } else {
            this.dialogVisible = true;
            return false;
          }
        });
      },
      handleClose: function () {
          console.log("Handle Close，空函数");
      }
    }
  }
</script>

<style scoped>.box-card {width: 480px;margin: auto;}</style>；

index.js（导入路由并嵌套）

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

import Main from '../views/Main'
import Login from '../views/Login'

import Profile from "../views/user/Profile"
import List from "../views/user/List"

Vue.use(Router);

export default new Router({
    routes: [
      {
        path: '/main',
        name: 'main',
        component: Main,    //嵌套路由
        children: [
          {
            path: '/user/profile',
            name: 'profile',
            component: Profile
          },
          {
            path: '/user/list',
            name: 'list',
            component: List
          }
        ]
      },

      {
        path: '/login',
        name: 'login',
        component: Login
      }
    ]
});

main.js(不变)

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

import router from './router'
//导入 element-ui 及 css
import Element from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'

Vue.use(Element);

/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  render: h => h(App)  //ElementUI
});

App.vue(不变)

<template>
  <div id="app">
    <router-link to="login">登录</router-link>
    <router-link to="main">首页</router-link>
    <router-view></router-view>
  </div>
</template>

<script>

export default {
  name: 'App',
}
</script>

<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>

新增 Profile.vue

<template>
  <h1>个人信息</h1>
</template>

<script>
    export default {
        name: "userProfile"
    }
</script>

<style scoped>

</style>

新增 List.vue

<template>
  <h1>用户列表</h1>
</template>

<script>
    export default {
        name: "userList"
    }
</script>

<style scoped>

</style>