前端路由layout布局处理以及菜单交互(三)

上篇介绍了前端项目部署以及基本依赖的应用，这次主要对于路由以及布局进行模块化处理

一、 创建layout模块

1、新建src/layout/index.vue

<template><el-container class="common-layout"><!-- <el-aside class="aside"><Aside/></el-aside> --><el-container><el-header class="header"><Header/></el-header><el-main class="main"><router-view></router-view></el-main><el-footer class="footer">Copyright © 2020 云风网, All rights reserved. 京ICP备20002789号-1</el-footer></el-container></el-container>
</template><script setup lang="ts">
// import Aside from './components/aside.vue'
import Header from './components/header.vue'</script><style lang="scss" scoped>
@import '@/assets/styles/mixins.scss';
.common-layout{width: 100%;height: 100vh;.aside{height: 100vh;width: 200px;}.header{height: 60px;padding: 0;}.main{@include scrollBar;}.footer{height: 60px;background-color: #343a40;color: #fff;line-height: 60px;}
}</style>

2、新建头部组件src/layout/components/header.vue

<template><el-menu:default-active="activeIndex"class="header-container"mode="horizontal":ellipsis="false"@select="handleSelect"><el-menu-item index="0"><imgclass="logo"src="@/assets/logo.svg"alt="logo"/></el-menu-item><navbar-itemv-for="(route, index) in routerList":key="route.path + index":item="route":base-path="route.path":is-nest="false"/></el-menu>
</template><script setup lang="ts">
import NavbarItem from './navbarItem.vue';
import { useRouter} from 'vue-router';
const router = useRouter();const activeIndex = ref('1')
const routerList = router.getRoutes();
console.log('routerList',routerList);
const handleSelect = (key: string, keyPath: string[]) => {console.log(key, keyPath)
}
</script><style lang="scss" scoped>
.el-menu--horizontal > .el-menu-item:nth-child(1) {margin-right: auto;
}
.header-container{height: 100%;padding: 0 50px;background-color: #fff;box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);.logo{width: 40px;}
}
</style> 

3、新建菜单组件src/layout/components/navbarItem.vue

<template><div v-if="!item.hidden"><template v-if="hasOneShowingChild(item.children, item) && (!onlyOneChild.children || onlyOneChild.noShowingChildren)"><app-link v-if="onlyOneChild.meta.title" :to="resolvePath(onlyOneChild.path, onlyOneChild.query)"><el-menu-item :index="resolvePath(onlyOneChild.path,'')" @click="handleClick(item.path)"><svg-icon :icon-class="onlyOneChild.meta.icon || (item.meta && item.meta.icon)" /><template #title><span class="menu-title" :title="hasTitle(onlyOneChild.meta.title)">{{ onlyOneChild.meta.title }}</span></template></el-menu-item></app-link></template><el-sub-menu v-else ref="subMenu" :index="resolvePath(item.path,'')" teleported><template v-if="item.meta" #title><svg-icon :icon-class="item.meta && item.meta.icon" /><span class="menu-title" :title="hasTitle(item.meta.title)">{{ item.meta.title }}</span></template><app-link v-for="child in item.children" :key="child.path"  :to="resolvePath(child.path, '')"><el-menu-item:item="child"class="nest-menu"@click="handleClick(child.path)"><template #title><span class="menu-title">{{ child.meta.title }}</span></template></el-menu-item></app-link></el-sub-menu></div></template><script setup lang="ts">import { isExternal } from '@/utils/validate.ts'import AppLink from './Link.vue'import { getNormalPath } from '@/utils/mis'interface MenuItem {path: string;meta?: {icon?: string;title?: string;[key: string]: any;};query?: string;children?: MenuItem[];hidden?: boolean;noShowingChildren?: boolean;}const props = defineProps<{item: MenuItem;isNest: boolean;basePath: string;}>();const onlyOneChild = ref<MenuItem>({ path: '', meta: {} });function hasOneShowingChild(children: MenuItem[] = [], parent: MenuItem): boolean {const showingChildren = children.filter(item => {if (item.hidden) {return false;} else {onlyOneChild.value = item;return true;}});if (showingChildren.length === 1) {return true;}if (showingChildren.length === 0) {onlyOneChild.value = { ...parent, path: '', noShowingChildren: true, meta: {} };return true;}return false;}function handleClick(routePath: string) {localStorage.setItem('routePath', routePath);}function resolvePath(routePath: string, routeQuery?: string) {if (isExternal(routePath)) {return routePath;}if (isExternal(props.basePath)) {return props.basePath;}if (routeQuery) {let query = JSON.parse(routeQuery);return { path: getNormalPath(`${props.basePath}/${routePath}`), query };}return getNormalPath(`${props.basePath}/${routePath}`);}function hasTitle(title: string | undefined): string {return title && title.length > 5 ? title : '';}</script>

4、新建菜单组件src/layout/components/Link.vue

<template><component :is="type" v-bind="linkProps()"><slot /></component>
</template><script setup lang="ts">
import { isExternal } from '@/utils/validate.ts'const props = defineProps({to: {type: [String, Object],required: true}
})const isExt = computed(() => {return isExternal(props.to)
})const type = computed(() => {if (isExt.value) {return 'a'}return 'router-link'
})function linkProps() {if (isExt.value) {return {href: props.to,target: '_blank',rel: 'noopener'}}return {to: props.to}
}
</script>

5、新建方法封装文件src/utils/validate.ts

/*** 判断url是否是http或https * @param {string} path* @returns {Boolean}*/export function isHttp(url) {return url.indexOf('http://') !== -1 || url.indexOf('https://') !== -1
}/*** 判断path是否为外链* @param {string} path* @returns {Boolean}*/export function isExternal(path) {return /^(https?:|mailto:|tel:)/.test(path)
}/*** @param {string} str* @returns {Boolean}*/
export function validUsername(str) {const valid_map = ['admin', 'editor']return valid_map.indexOf(str.trim()) >= 0
}/*** @param {string} url* @returns {Boolean}*/
export function validURL(url) {const reg = /^(https?|ftp):\/\/([a-zA-Z0-9.-]+(:[a-zA-Z0-9.&%$-]+)*@)*((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}|([a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(:[0-9]+)*(\/($|[a-zA-Z0-9.,?'\\+&%$#=~_-]+))*$/return reg.test(url)
}/*** @param {string} str* @returns {Boolean}*/
export function validLowerCase(str) {const reg = /^[a-z]+$/return reg.test(str)
}/*** @param {string} str* @returns {Boolean}*/
export function validUpperCase(str) {const reg = /^[A-Z]+$/return reg.test(str)
}/*** @param {string} str* @returns {Boolean}*/
export function validAlphabets(str) {const reg = /^[A-Za-z]+$/return reg.test(str)
}/*** @param {string} email* @returns {Boolean}*/
export function validEmail(email) {const reg = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/return reg.test(email)
}/*** @param {string} str* @returns {Boolean}*/
export function isString(str) {if (typeof str === 'string' || str instanceof String) {return true}return false
}/*** @param {Array} arg* @returns {Boolean}*/
export function isArray(arg) {if (typeof Array.isArray === 'undefined') {return Object.prototype.toString.call(arg) === '[object Array]'}return Array.isArray(arg)
}

二、修改router/index.ts

import { createRouter, createWebHistory } from 'vue-router'
import Layout from '@/layout/index.vue'
//公共路由
export const constantRoutes = [{path: '/',component: Layout,redirect: '/home',hidden: false,children: [{path: 'home',name: 'Home',meta:{ title: '系统知识',routerNum: 0},component: () => import('@/views/Home.vue')}]},{path: '/',redirect: "/article",component: Layout,hidden: false,children: [{path: 'article',name: 'Article',meta:{ title: '插件管理',routerNum: 1},component: () => import('@/views/Article.vue')}]},{path: '/',redirect: "/mix",component: Layout,hidden: false,meta:{ title: '多级菜单',routerNum: 0},children: [{path: 'home',name: 'Home',meta:{ title: '系统知识',routerNum: 0},component: () => import('@/views/Home.vue')},{path: 'article',name: 'Article',meta:{ title: '插件管理',routerNum: 1},component: () => import('@/views/Article.vue')}]},// {//     path: '/article/:id',//     name: 'Article',//     meta:{ title: '插件管理',routerNum: 1},//     component: () => import('@/views/Article.vue')// }
]
const router = createRouter({history: createWebHistory(),routes: constantRoutes
})export default router