最后案例：
一：创建一个 Vue 应用
打开控制台：
npm init vue@latest
输入你需要创建的项目名称，一路回车
下载需要的包，如下：
"dependencies": {
"@element-plus/icons-vue": "^2.1.0",
"axios": "^1.3.5",
"element-plus": "^2.3.3",
"qs": "^6.11.1",
"vue": "^3.2.47",
"vue-router": "^4.1.6",
"vuex": "^4.0.2"
},
main.js:
import { createApp } from 'vue'
import App from './App.vue'
const app = createApp(App) //创建VUE对象
//导入路由配置
import router from './router'
app.use(router)
// import VueWechatTitle from 'vue-wechat-title';
// app.use(VueWechatTitle)
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
app.use(ElementPlus)
import * as ElementPlusIconsVue from '@element-plus/icons-vue'
for (const [key, component] of Object.entries(ElementPlusIconsVue)) {
app.component(key, component)
}
app.mount('#app')
App.vue
<script setup>
import HelloWorld from './components/HelloWorld.vue'
import TheWelcome from './components/TheWelcome.vue'
</script>
<template>
<!--<header>
<img alt="Vue logo" class="logo" src="./assets/logo.svg" width="125" height="125" />
<div class="wrapper">
<HelloWorld msg="You did it!" />
</div>
</header>
<main>
<TheWelcome />
</main>-->
<router-view v-wechat-title="$route.meta.title" />
</template>
<style scoped>
@import url("./assets/base.css");
header {
line-height: 1.5;
}
.logo {
display: block;
margin: 0 auto 2rem;
}
@media (min-width: 1024px) {
header {
display: flex;
place-items: center;
padding-right: calc(var(--section-gap) / 2);
}
.logo {
margin: 0 2rem 0 0;
}
header .wrapper {
display: flex;
place-items: flex-start;
flex-wrap: wrap;
}
}
</style>
router / index.js
// import Vue from 'vue' //引入Vue
import {
createRouter,
createWebHashHistory
} from 'vue-router' //引入vue-router
// Vue.use(Router) //Vue全局使用Router
import home from '../views/home.vue'
// import login from '../views/login.vue'
import index from '../views/index.vue'
import collect from '../views/collect.vue'
import set from '../views/set.vue'
import img1 from '../views/img1.vue'
const routes = [{
path: '',
redirect: "home"
}, {
path: '/',
redirect: "home"
},
{
path: '/login',
name: 'login',
// component: login,
component: () => import('../views/login.vue'),
meta: {
title: '登录'
}
},
{
path: '/home',
name: 'home',
component: home,
/* 子路由 */
children: [{
path: '/',
redirect: "index"
},{
path: '',
redirect: "index"
}, {
path: '/index',
name: 'index',
component: index,
meta: {
title: '首页',
}
},
{
path: '/collect',
name: 'collect',
component: collect,
meta: {
title: '收藏',
isTab: true
}
},
{
path: '/img1',
name: 'img1',
component: img1,
meta: {
title: '图片1',
isTab: true
}
},
{
path: '/set',
name: 'set',
component: set,
meta: {
title: '设置',
isTab: true
}
}
]
}
];
// 导航守卫
// 使用 router.beforeEach 注册一个全局前置守卫，判断用户是否登陆
/* router.beforeEach((to, from, next) => {
if (to.path === '/login') {
next();
} else {
let token = localStorage.getItem('Authorization');
if (token === null || token === '') {
next('/login');
} else {
next();
}
}
}); */
const router = createRouter({
history: createWebHashHistory(),
routes
})
export default router;
menu.js
var mu = {
longTitle: '管理控制台',
littleTitle: '控制台',
items: [{
iconName: 'home',
name: '首页',
routerName: 'index',
disabled: false
}, {
iconName: 'img',
name: '图片管理',
submenu: [{
iconName: 'img',
name: '图片一',
routerName: 'img1',
disabled: false
}, {
iconName: 'img',
name: '图片二',
routerName: 'img2',
disabled: false
}, {
iconName: 'img',
name: '图片三管理',
submenu: [{
iconName: 'img',
name: '图片三',
routerName: 'img1',
disabled: true
}]
}]
},
{
iconName: 'collection',
name: '收藏管理',
submenu: [{
iconName: 'collection',
name: '收藏',
routerName: 'collect',
disabled: false
}]
},
{
iconName: 'about',
name: '设置',
routerName: 'set',
disabled: false
}
]
}
export default mu;
utils / api.js
/**
* api接口的统一封装
*/
import axios from './request.js';
import Qs from 'qs';
const urlApi = 'http://localhost:3000/';//本地测试
// 登录
export function UserLogin(query) {
return axios({
url: urlApi + 'loginData',//模拟数据接口
method: 'post',
data: Qs.stringify(query)
})
}
request.js
import axios from 'axios'
import router from '../router/index.js'
let loading
// 请求拦截
axios.interceptors.request.use(
(confing) => {
//设置请求头
if (localStorage.Authorization) { //判断本地缓存的token是否存在
confing.headers.Authorization = localStorage.Authorization
}
return confing
},
(error) => { //token不存在，设置为网络报错
return Promise.reject(error)
}
)
//响应拦截
axios.interceptors.response.use(
(res) => { //响应处理
if (res.status === 200) { //响应码200请求成功
if (res.data.code == '200') { //接口请求成功
return Promise.resolve(res.data)
} else if (res.data.code == '10000' || res.data.code == '10001') {//token验证失败，根据自己实际的修改
//清除token
localStorage.removeItem('Authorization')
//跳转到登录页面
router.push('/login')
} else {
//Message.error(res.data.msg);
}
return Promise.reject(res)
} else {
return Promise.reject(res)
}
// return res
},
(error) => {
Message.error('网络出错')
// endLoading()
// 获取状态码
const {
status
} = error.response
if (status === 401) {
//Message.error('请重新登录')
//清楚token
localStorage.removeItem('Authorization')
//跳转到登录页面
router.push('/login')
}
return Promise.reject(error)
}
)
export default axios
hemo.vue
<template v-slot:default>
<div :class="['content',isCollapse?'menu--fold':'menu--unfold']">
<!-- 侧边菜单栏 -->
<div class="menuLeft">
<!--<div class="menu-nav-header">
<span>{{isCollapse?'控制台':'管理控制台'}}</span>
</div>-->
<div class="menu-nav-header">
<span>{{isCollapse?littleTitle:longTitle}}</span>
</div>
<!--todo 菜单栏组件 -->
<el-menu active-text-color="#fff" background-color="#263238" class="el-menu-vertical-demo"
:collapse-transition="false" default-active="2" text-color="#96a4ab " @open="handleOpen"
@close="handleClose" :collapse="isCollapse">
<el-menu-item index="1" @click="$router.push({ name: 'index' })">
<!--<SvgIcon name="home" class="icon-svg" />-->
<el-icon :size="size" :color="color">
<Edit />
</el-icon>
<span slot=""> 首页</span>
</el-menu-item>
<el-sub-menu index="2">
<template #title>
<!--<SvgIcon name="img" class="icon-svg" />-->
<span> 图片管理</span>
</template>
<el-menu-item index="1-1" @click="$router.push({ name: 'img1' })">
<SvgIcon name="img" class="icon-svg" />
<span> 图片1</span>
</el-menu-item>
<el-menu-item index="1-2">
<SvgIcon name="img" class="icon-svg" />
<span> 图片2</span>
</el-menu-item>
<el-sub-menu index="1-4">
<template #title>
<SvgIcon name="img" class="icon-svg" />
<span> 图片3</span>
</template>
<el-menu-item index="1-4-1">
<SvgIcon name="img" class="icon-svg" />
<span> 图片三级子菜单</span>
</el-menu-item>
</el-sub-menu>
</el-sub-menu>
<el-sub-menu index="3">
<template #title>
<SvgIcon name="collection" class="icon-svg" />
<span> 收藏管理</span>
</template>
<el-menu-item index="3" @click="$router.push({ name: 'collect' })">
<SvgIcon name="collection" class="icon-svg" />
<span class="icon-text"> 收藏</span>
</el-menu-item>
</el-sub-menu>
<el-menu-item index="4" @click="$router.push({ name: 'set' })">
<SvgIcon name="about" class="icon-svg" />
<span> 设置</span>
</el-menu-item>
</el-menu>
</div>
<!-- 右边内容 -->
<div class="content-main">
<div class="navTop horizontalView">
<div class="nav_tools horizontalView">
<el-icon :name="isCollapse?'expand':'fold'" class="icon-svg" @click="isCollapse=!isCollapse" />
</div>
<!--<el-breadcrumb separator="/">
<el-breadcrumb-item v-if="!breadcrumbList.size && breadcrumbList[0]!='首页'" :to="{ name: 'index' }">
首页
</el-breadcrumb-item>
<el-breadcrumb-item v-for="it in breadcrumbList">{{it}}</el-breadcrumb-item>
</el-breadcrumb>-->
</div>
<!-- todo 内容组件 -->
<el-tabs v-if="$route.meta.isTab" v-model="mainTabsActiveName" :closable="true"
@tab-click="selectedTabHandle" @tab-remove="removeTabHandle">
<el-scrollbar ref="scroll" :height="siteContentViewHeight+32+'px'" @scroll="scroll">
<el-tab-pane v-for="item in mainTabs" :label="item.title" :name="item.name">
<el-card :style="'min-height:'+siteContentViewHeight + 'px'">
<router-view v-if="item.name === mainTabsActiveName" />
</el-card>
</el-tab-pane>
</el-scrollbar>
</el-tabs>
<div v-else>
<el-scrollbar ref="scroll" :height="siteContentViewHeight+32+'px'" @scroll="scroll">
<!-- 主入口标签页 e -->
<el-card :style="'min-height:'+ siteContentViewHeight + 'px'">
<router-view />
</el-card>
</el-scrollbar>
</div>
<router-view />
</div>
</div>
</template>
<script>
import mu from '../router/menu';
export default {
components: {
},
data: function() {
return {
isCollapse: false,
mainTabs: [],
mainTabsActiveName: '',
menuActiveName: '',
menus: [],
longTitle: '',
littleTitle: '',
breadcrumbObj: {},
breadcrumbList:[]
}
},
created() {
let that = this;
that.routeHandle(that.$route);
that.menus = mu.items;
that.longTitle = mu.longTitle;
that.littleTitle = mu.littleTitle;
that.breadcrumbList = [
that.$route.meta.title
]
//菜单项层级处理，做一个面包屑集合保存
var mus=that.menus
for (let i1 of mus) {
if (i1.submenu) {
for (let i2 of i1.submenu) {
if (i2.submenu) {
for (let i3 of i2.submenu) {
if (!i3.submenu) {
that.breadcrumbObj[i3.name] = [i1.name, i2.name, i3.name];
}
}
} else {
that.breadcrumbObj[i2.name] = [i1.name, i2.name];
console.log(i2.name)
}
}
} else {
that.breadcrumbObj[i1.name] = [i1.name];
console.log(i1.name)
}
}
},
// 监听路由变化
watch: {
$route: {
handler(to, from) {
if (to.path != from.path) {
// 处理路由
this.routeHandle(to);
this.breadcrumbList = this.breadcrumbObj[to.meta.title]
}
}
}
},
methods: {
resetDocumentClientHeight: function() {
this.documentClientHeight = document.documentElement['clientHeight'];
window.onresize = () => {
this.documentClientHeight = document.documentElement['clientHeight'];
this.loadSiteContentViewHeight();
};
},
loadSiteContentViewHeight: function() {
let height = this.documentClientHeight - 52; //减去导航栏高度50
console.log(this.$route.meta.isTab)
if (this.$route.meta.isTab) {
height -= 70; //减去tab栏高度40,减去上下边距30
/* this.siteContentViewHeight = {
'min-height': height + 'px'
}; */
this.siteContentViewHeight = height;
} else {
height -= 30;
//给内容区设置高度
this.siteContentViewHeight = height;
}
},
routeHandle: function(route) {
//每次切换页面，重新计算页面高度和内容区高度
this.resetDocumentClientHeight();
this.loadSiteContentViewHeight();
if (route.meta.isTab) {
// tab选中, 不存在先添加
var tab = this.mainTabs.filter(item => item.name === route.name)[0];
if (!tab) {
if (route.meta.isDynamic) {
route = this.dynamicMenuRoutes.filter(item => item.name === route.name)[0];
if (!route) {
return console.error('未能找到可用标签页!');
}
}
tab = {
menuId: route.meta.menuId || route.name,
name: route.name,
title: route.meta.title,
iframeUrl: route.meta.iframeUrl || '',
params: route.params,
query: route.query
};
this.mainTabs = this.mainTabs.concat(tab);
}
this.menuActiveName = tab.menuId + '';
this.mainTabsActiveName = tab.name;
}
},
mounted: function() {
let that = this;
that.resetDocumentClientHeight();
that.loadSiteContentViewHeight();
},
selectedTabHandle: function(tab, e) {
tab = this.mainTabs.filter(item => item.name === tab.paneName);
if (tab.length >= 1) {
this.$router.push({
name: tab[0].name,
query: tab[0].query,
params: tab[0].params
});
}
},
removeTabHandle: function(tabName) {
this.mainTabs = this.mainTabs.filter(item => item.name !== tabName);
if (this.mainTabs.length >= 1) {
// 当前选中tab被删除
if (tabName === this.mainTabsActiveName) {
var tab = this.mainTabs[this.mainTabs.length - 1];
this.$router.push({
name: tab.name,
query: tab.query,
params: tab.params
},
() => {
this.mainTabsActiveName = this.$route.name;
}
);
}
} else {
this.menuActiveName = '';
this.$router.push({
name: 'Home'
});
}
},
}
}
</script>
<style>
/*@import url('../assets/css/home.css');*/
/* -------侧边栏 折叠 */
.menu--fold .menuLeft {
width: 64px;
}
.menu--fold .content-main {
margin-left: 64px;
}
/* --------------------- */
/* ---------侧边栏 展开 */
.menu--unfold .menuLeft {
width: 230px;
}
.menu--unfold .content-main {
margin-left: 230px;
}
/* ------------- */
.navTop {
position: relative;
width: 100%;
height: 50px;
z-index: 100;
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
box-sizing: border-box;
background: white;
}
.nav_tools {
height: 100%;
/* width: 100%; */
}
.nav_tools .icon-svg {
margin-left: 10px;
color: #5b5b5b;
}
.menuLeft {
position: fixed;
top: 0;
left: 0;
bottom: 0;
z-index: 1020;
overflow: hidden;
background-color: #263238;
}
.content-main {
position: relative;
background: #f1f4f5;
height: 100%;
}
.menu-nav-header {
color: white;
height: 50px;
line-height: 50px;
text-align: center;
font-size: 20px;
font-weight: bold;
/* background-color: #9fbea7; */
background-color: #566f7e;
}
/* 动画 */
.nav_tools,
.menuLeft,
.content-main {
transition: inline-block 0.3s, left 0.3s, width 0.3s, margin-left 0.3s, font-size 0.3s;
}
/* 修改菜单栏样式 */
.menuLeft .el-menu {
border-right: none;
}
.el-menu-vertical-demo:not(.el-menu--collapse) {
border-right: none;
width: 230px;
}
.el-menu .icon-text {
margin-left: 10px;
}
/* 修改标签栏样式 */
.content-main .el-tabs .el-tabs__header {
z-index: 90;
padding: 0 55px 0 15px;
box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.12), 0 0 6px 0 rgba(0, 0, 0, 0.04);
background-color: #fff;
}
.content-main .el-tabs .el-tabs__nav-wrap::after {
width: 0px;
}
.content-main .el-scrollbar .el-card {
margin: 15px 15px;
}
.content-main .el-tabs .el-tabs__header{
margin: unset;
}
.content-main .el-tabs .el-tab-pane{
}
</style>
标签：vue,name,创建,route,router,tab,vue3,后台,import From： https://www.cnblogs.com/weiweiyeyu/p/17305066.html