首先來(lái)總結(jié)element ui 官方文檔的左側(cè)菜單結(jié)構(gòu),帶有el-submenu
為子級(jí)節(jié)點(diǎn),el-menu-item
表示沒(méi)有下級(jí)。當(dāng)然,菜單不能寫(xiě)死,因?yàn)椴藛我苍S不止兩級(jí),所以我們需要遞歸來(lái)實(shí)現(xiàn)。根據(jù)當(dāng)前節(jié)點(diǎn)是否有下級(jí)去判斷,如果有下級(jí),則繼續(xù)調(diào)用子級(jí),直到?jīng)]有下級(jí)為止,下面我貼上左側(cè)菜單所有的代碼:
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請(qǐng)求數(shù)據(jù)格式
[ { name: "首頁(yè)", id: -1, icon: "el-icon-picture-outline-round", url: "/index", children: [] }, { name: "按鈕", id: 20, icon: "el-icon-message-solid", url: "/button", children: [] }, { name: "測(cè)試1", id: 1, icon: "el-icon-s-claim", url: "", children: [ { id: 4, parentid: 1, name: "測(cè)試1-1", icon: "el-icon-chat-dot-round", url: "", children: [ { id: 8, parentid: 1, name: "測(cè)試1-1-1", icon: "el-icon-cloudy", url: "/test", children: [] }, { id: 9, parentid: 1, name: "測(cè)試1-1-2", icon: "el-icon-files", url: "/test1", children: [] } ] }, { id: 5, parentid: 1, name: "測(cè)試1-2", icon: "el-icon-shopping-cart-1", url: "/test3", children: [] } ] }, { name: "測(cè)試2", id: 2, icon: "el-icon-menu", url: "", children: [ { id: 6, parentid: 2, name: "測(cè)試2-1", icon: "el-icon-folder-checked", url: "", children: [] }, { id: 7, parentid: 2, name: "測(cè)試2-2", icon: "el-icon-folder-remove", url: "", children: [] } ] }, { name: "測(cè)試3", id: 3, icon: "el-icon-monitor", url: "", children: [] } ]
menu.vue
<template> <div class="menu"> <div class="logo-con"> <div class="title" v-show="!collapse"> <span class="title__sider-title is-active">{{logo}}</span> </div> <div class="title" v-show="collapse"> <span class="title__sider-title el-tag--mini">LG</span> </div> </div> <el-menu :background-color="backgroundColor" :text-color="textColor" :default-active="$route.meta.pageId" :collapse="collapse" > <template v-for="item in list"> <router-link :to="item.url" :key="item.id" v-if="item.children.length===0"> <el-menu-item :index="item.id.toString()"> <i :class="item.icon"></i> <span slot="title">{{item.name}}</span> </el-menu-item> </router-link> <subMenu v-else :data="item" :key="item.id"></subMenu> </template> </el-menu> </div> </template> <script> import subMenu from "./subMenu"; export default { name: "menuList", components: { subMenu }, data() { return { collapse: false, //是否折疊 list: [], //當(dāng)行菜單數(shù)據(jù)源 backgroundColor: "#304156", //導(dǎo)航菜單背景顏色 textColor: "#BFCBD9", //導(dǎo)航菜單文字顏色 logo: "LOGO" //logo }; } }; </script> <style lang="scss" scoped> .el-menu { border-right: none; a { text-decoration: none; } } .logo-con { height: 64px; padding: 10px; .title { position: relative; text-align: center; font-size: 20px; height: 64px; line-height: 64px; span { padding: 0 5px 0 0; color: #409eff; font-size: 20px; } } } </style>
submenu.vue
這里有個(gè)知識(shí)點(diǎn)functional,不懂自行百度,文檔地址: https://cn.vuejs.org/v2/guide/render-function.html#search-query-sidebar
5 <!-- * @Description: * @Author: PengYH * @Date: 2019-08-06 --> <template functional> <el-submenu :index="props.data.id.toString()"> <template slot="title"> <i :class="props.data.icon"></i> <span>{{props.data.name}}</span> </template> <template v-for="item in props.data.children"> <router-link :to="item.url" :key="item.id" v-if="item.children.length===0"> <el-menu-item class="subitem" :index="item.id.toString()"> <i :class="item.icon"></i> <span slot="title">{{item.name}}</span> </el-menu-item> </router-link> <sub-menu v-else :data="item" :key="item.id"></sub-menu> </template> </el-submenu> </template> <script> export default { name: "submenu", props: { data: [Array, Object] } }; </script> <style lang="scss" scoped> .el-submenu { .el-menu-item { padding: 0; } } </style>
效果圖
總結(jié)
以上所述是小編給大家介紹的vue element 生成無(wú)線級(jí)左側(cè)菜單的實(shí)現(xiàn)代碼,希望對(duì)大家有所幫助,如果大家有任何疑問(wèn)歡迎給我留言,小編會(huì)及時(shí)會(huì)及時(shí)回復(fù)大家的!
標(biāo)題名稱(chēng):vueelement生成無(wú)線級(jí)左側(cè)菜單的實(shí)現(xiàn)代碼
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