登录跳转-路由导航守卫
修改 src/main.js 加入
router.beforeEach((to, from, next) => {
if(to.path === '/login'){
sessionStorage.removeItem('user');
}
var user = sessionStorage.getItem('user');
if(!user && to.path !== '/login'){
next({
path: '/login'
})
}else{
next();
}
})
后台整体框架
src/components/Container.vue
<template>
<div class="app">
<el-container>
<el-aside class="app-side app-side-left" :class="isCollapse ? 'app-side-collapsed' : 'app-side-expanded'">
<div class="app-side-logo">
<img src="@/assets/logo.png"/>
</div>
<div class="app-side-content">
<el-menu default-active="1-4-1"
class="el-menu-vertical-demo"
@open="handleOpen"
:collapse="isCollapse">
<el-submenu index="1">
<template slot="title">
<i class="el-icon-location"></i>
<span slot="title">导航一</span>
</template>
<el-menu-item-group>
<span slot="title">分组一</span>
<el-menu-item index="1-1">选项1</el-menu-item>
<el-menu-item index="1-2">选项2</el-menu-item>
</el-menu-item-group>
<el-menu-item-group title="分组2">
<el-menu-item index="1-3">选项3</el-menu-item>
</el-menu-item-group>
<el-submenu index="1-4">
<span slot="title">选项4</span>
<el-menu-item index="1-4-1">选项1</el-menu-item>
</el-submenu>
</el-submenu>
<el-menu-item index="2">
<i class="el-icon-menu"></i>
<span slot="title">导航二</span>
</el-menu-item>
<el-menu-item index="3"
disabled>
<i class="el-icon-document"></i>
<span slot="title">导航三</span>
</el-menu-item>
<el-menu-item index="4">
<i class="el-icon-setting"></i>
<span slot="title">导航四</span>
</el-menu-item>
</el-menu>
</div>
</el-aside>
<el-container>
<el-header class="app-header">
<div class="app-side-fold"
@click.prevent="toggleSideBar">
<i v-show="!isCollapse" class="el-icon-s-fold"></i>
<i v-show="isCollapse" class="el-icon-s-unfold"></i>
</div>
<el-menu default-active="1"
class="el-menu-demo tab-page"
mode="horizontal"
@select="handleSelect"
active-text-color="#409EFF">
<el-menu-item index="1">处理中心</el-menu-item>
<el-submenu index="2">
<template slot="title">我的工作台</template>
<el-menu-item index="2-1">选项1</el-menu-item>
<el-menu-item index="2-2">选项2</el-menu-item>
<el-menu-item index="2-3">选项3</el-menu-item>
<el-submenu index="2-4">
<template slot="title">选项4</template>
<el-menu-item index="2-4-1">选项1</el-menu-item>
<el-menu-item index="2-4-2">选项2</el-menu-item>
<el-menu-item index="2-4-3">选项3</el-menu-item>
</el-submenu>
</el-submenu>
<el-menu-item index="3"
disabled>消息中心</el-menu-item>
<el-menu-item index="4">
<a href="#">订单管理</a>
</el-menu-item>
</el-menu>
<div class="app-header-userinfo">
<el-dropdown trigger="hover"
:hide-on-click="false">
<span class="el-dropdown-link">
{{ username }}
<i class="el-icon-caret-bottom el-icon--right"></i>
</span>
<el-dropdown-menu slot="dropdown">
<el-dropdown-item>我的消息</el-dropdown-item>
<el-dropdown-item>设置</el-dropdown-item>
<el-dropdown-item divided
@click.native="logout">退出登录</el-dropdown-item>
</el-dropdown-menu>
</el-dropdown>
</div>
</el-header>
<el-main class="app-body">
<template>
<router-view/>
</template>
</el-main>
</el-container>
</el-container>
</div>
</template>
<script>
export default {
name: 'Container',
data () {
return {
username: '',
isCollapse: false
}
},
methods: {
toggleSideBar () {
this.isCollapse = !this.isCollapse
},
logout () {
this.$confirm('确认退出?', '提示', {})
.then(() => {
sessionStorage.removeItem('user');
this.$router.push('/login');
})
.catch(() => { });
},
handleOpen (key, keyPath) {
console.log(key, keyPath);
},
handleClose (key, keyPath) {
console.log(key, keyPath);
},
handleSelect (key, keyPath) {
console.log(key, keyPath);
},
},
mounted () {
let user = sessionStorage.getItem('user');
if (user) {
this.username = user;
}
},
}
</script>
<style lang='scss'>
.app {
$solidBorder: 1px solid #eee;
$sideCollapsedWidth: 66px;
$sideExpandedWidth: 230px;
font-family: "Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑",Arial,sans-serif;
font-size: 1em;
width: 100%;
height: 100%;
min-width: 900px;
border: $solidBorder;
display: flex;
display: -webkit-flex;
flex-flow: row nowrap;
&-side {
width: 230px;
height: 100%;
&-left {
background-color: rgb(238, 241, 246);
}
&-logo {
background: #00A4FF;
height: 60px;
text-align: center;
}
&-fold {
padding-right: 15px;
font-size: 24px;
}
&-collapsed {
width: 66px!important;
.app-side-logo {
width: 66px;
}
}
&-expanded {
width: 230px!important;
}
}
&-header {
width: 100%;
height: 60px;
display: flex;
flex-flow: row nowrap;
justify-content: flex-start;
align-items: center;
border-bottom: $solidBorder;
&-userinfo {
position: absolute;
right: 0;
margin-right: 25px;
display: flex;
flex-flow: row nowrap;
height: 60px;
justify-content: flex-start;
align-items: center;
}
}
&-body {
font-size: 1em;
width: 100%;
height: 100%;
padding: 20px;
overflow-y: scroll;
}
&-footer {
width: 100%;
height: 60px;
}
}
</style>
在 router 导入容器组件
修改 src/router/index.js 为
import Vue from 'vue'
import Router from 'vue-router'
import Login from '../views/Login.vue'
import Container from '../components/Container.vue'
Vue.use(Router)
export default new Router({
routes: [
{
path: '/',
name: 'Container',
component: Container
},
{
path: '/login',
name: 'Login',
component: Login
},
]
})
修改 src/App.vue:
<template>
<router-view />
</template>
<style lang="scss">
</style>
自定义css
新建 src/assets/css/index.scss
html {
height: 100%;
}
body {
position: relative;
top: 0;
left: 0;
margin: 0;
padding: 0;
-webkit-box-sizing: border-box;
box-sizing: border-box;
width: 100%;
height: 100%;
overflow: hidden;
}
.inline-block {
display: inline-block;
}
在 src/main.js 中引入该文件
import './assets/css/index.scss'
页面效果:
1.png
2.png
知识点
1 会话存储
使用html5的 sessionStorage 对象临时保存会话
// 保存会话
sessionStorage.setItem('user', username)
// 删除会话
sessionStorage.removeItem('user', username)
2 将所有未登录会话重定向到 /login
用 vue-router 的 beforeEach 实现
beforeEach 方法接收三个参数：
- to: Route: 即将要进入的目标 路由对象
- from: Route: 当前导航正要离开的路由
- next: Function: 一定要调用该方法来 resolve 这个钩子。执行效果依赖 next 方法的调用参数。
文章改编自大神博客：https://www.cnblogs.com/wbjxxzx/p/9942867.html，仅作为学习实践。
