Vue中的嵌套路由

一、Vue中的嵌套路由

1.App.vue中的代码

<template>
  <div id="app">
    <router-view/>
  </div>
</template>

2.router/index.js:   children中的子路由，path 不加  '/',访问main,先获取main对应的组件，对应的路由出口在App.vue中，redirect的属性值为访问 父组件时，会强制访问父组件下某个子组件，该组件对应的路由出口在父组件中

import Vue from 'vue'
import VueRouter from 'vue-router'
import HomeView from '../views/HomeView.vue'

Vue.use(VueRouter)

// 路由中的文件加载对应的是app.vue的路由出口
// 路由中的文件的子文件加载对应的是该文件中的路由出口
//      如：main下面的news的加载，是在main中的routerview中显示的
const routes = [
  {
    path: '/login',
    component:  () => import( '../views/LoginView.vue')
  },
  {
    path: '/main',
    component:  () => import( '../views/MainView.vue'),
    redirect:'/main/news',
    children:[
      {
        path: 'home',
        name: 'home',
        component: HomeView
      },
      {
        path: 'about',
        name: 'about',
        component: () => import( '@/views/AboutView.vue')
      },
      {
        path: 'news',
        component: () => import('@/views/NewsView.vue')
      },
      {
        path: 'editor',
        component: () => import('@/views/EditorView.vue')
      },
      {
        path: 'product',
        component: () => import('@/views/ProductView.vue')
      },
      {
        path: 'case',
        component: () => import('@/views/CaseView.vue')
      }
    ]
  }
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})

export default router

3.LoginView.vue

<template>
    <div>
        <h1>登录</h1>
        {{ $store.state.token }}
        <el-form ref="form" :rules="rules"  :model="form" label-width="80px">
            <el-form-item label="账号" prop="username">
                <el-input v-model.trim="form.username" ></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
                <el-input type="password" v-model="form.password" ></el-input>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" @click="onSubmit">登录</el-button>
            </el-form-item>
       </el-form>
    </div>
</template>

<script>
    export default {
        methods:{
            onSubmit(){
                this.$refs.form.validate((valid) => {
                    if (valid) {
                        this.$store.dispatch('setTokenAsync',this.form);
                    } else {
                        console.log('error submit!!');
                        return false;
                    }
                });
            }
        },
        data(){
            return {
                form:{},
                rules: {
                    username: [
                        { required: true, message: '请输入账号', trigger: 'blur' },
                        { min: 2, max: 20, message: '长度在 2 到 20 个字符', trigger: 'blur' }
                    ],
                    password: [
                        { required: true, message: '请输入密码', trigger: 'blur' }
                    ]
                 }
            }
        }
    }
</script>

<style lang="scss" scoped>

</style>

4.MainView.vue： 在MainView.vue中，访问对应的子路由时，to='/父组件访问时对应的path/子组件对应的path',此时访问的子组件  ，显示对应的路由出口在MainView.vue文件中。

<template>
    <div>
        <!-- MainView.vue页面对应的路由出口在app.vue -->
        <nav>
            <router-link to="/main/home">Home</router-link> |
            <router-link to="/main/about">About</router-link> |
            <router-link to="/main/news">新闻列表</router-link> |
            <router-link to="/main/product">产品列表</router-link> |
            <router-link to="/main/case">案例列表</router-link>|
            <router-link to="/main/editor">编辑器</router-link> 
        </nav>
        <!-- 点击MainView.vue页面上的链接，对应的视图对应的路由出口在这里 -->
        <router-view></router-view>
    </div>
</template>

<script>
    export default {
        
    }
</script>

5.页面效果

访问login

访问main