本文实例为大家分享了vue+elementui实现选项卡功的具体代码,供大家参考,具体内容如下
用法:
首先自己先在项目中定义三个组件(顶部TopNav,左侧LeftAside,中间Main),这方法三两句话描述不清
我就上我用过的一个项目代码实例(但是这个有点缺陷,没有做像一键清空选项卡,关闭左右侧选项卡的方法)
TopNav
<template> <el-menu class="el-menu-demo" mode="horizontal" background-color="#334157" text-color="#fff" active-text-color="#fff"> <el-button class="buttonimg"> <img class="showimg" :src="https://www.atool.online/article/collapsed?imgshow:imgsq" @click="doToggle()"> <!-- :src="https://www.atool.online/article/collapsed?imgshow:imgsq" @click="doToggle()" --> </el-button> <el-submenu index="2" class="submenu"> <template slot="title">当前用户【{{username}}】身份认证:{{usertype}}</template> <el-menu-item index="2-1">设置</el-menu-item> <el-menu-item index="2-2" @click="mya()">个人中心</el-menu-item> <el-menu-item @click="exit()" index="2-3">退出</el-menu-item> </el-submenu> </el-menu> </template> <script> export default { name: 'LeftAside', data: function() { return { collapsed: false, //是否折叠 imgshow: require('../assets/img/show.png'), imgsq: require('../assets/img/sq.png'), username:sessionStorage.getItem("username"), usertype:sessionStorage.getItem("deptment") }; }, methods: { doToggle() { this.collapsed = !this.collapsed; console.log("TopNav的collapsed=%s", this.collapsed); this.$emit('top-click', this.collapsed); }, exit() { this.$confirm('亲,请不要走,留下好不好?', '提示', { confirmButtonText: '残忍离开', cancelButtonText: '留下~', type: 'warning' }).then(() => { this.$router.push('/'); }).catch(() => {}); }, mya(){ /* this.$router.push('/userCenter'); */ /* this.$router.push('/system/UserCenter'); */ } } } </script> <style scoped> .el-menu-vertical-demo:not(.el-menu--collapse) { border: none; } .submenu { float: right; } .buttonimg { height: 60px; background-color: transparent; border: none; } .showimg { width: 26px; height: 26px; position: absolute; top: 17px; left: 17px; } .showimg:active { border: none; } </style>
LeftAside
<template> <el-menu router :default-active="$route.path" class="el-menu-vertical-demo" background-color="#334157" text-color="#fff" active-text-color="#ffd04b" :collapse="leftCollapsed"> <!-- <el-menu default-active="2" :collapse="collapsed" collapse-transition router :default-active="$route.path" unique-opened class="el-menu-vertical-demo" background-color="#334157" text-color="#fff" active-text-color="#ffd04b"> --> <div class="logobox"> <img class="logoimg" src="https://www.atool.online/assets/img/logo.png" alt=""> </div> <!-- 第一级菜单 el-submenu属性: index:用于菜单折叠,不能重复 key:菜单项的唯一标识,不可重复 --> <el-menu-item index="/Home" key="Home"> <i class="el-icon-house"></i> <span slot="title">首页</span> </el-menu-item> <!-- <el-menu-item index="/Page1" key="Page1"> <i class="el-icon-menu"></i> <span slot="title">Page1</span> </el-menu-item> <el-menu-item index="/Page2" key="Page2"> <i class="el-icon-menu"></i> <span slot="title">Page2</span> </el-menu-item> --> <el-submenu v-for="root in treenode" :index="'index-'+root.dictId" :key="'key-'+root.dictId"> <template slot="title"> <i :class="root.dictIcon"></i> <span slot="title">{{root.dictText}}</span> </template> <!-- 第二级菜单 --> <!-- el-menu-item属性: index:用于跳转页面,不能重复 key:菜单项的唯一标识,不可重复 --> <el-menu-item @click="addTab(node.dictUrl,node.dictText)" v-for="node in root.children" :index="node.dictUrl" :key="'key-'+node.dictId"> <i class="el-icon-menu"></i> <span slot="title">{{node.dictText}}</span> </el-menu-item> </el-submenu> </el-menu> </template> <script> export default { name: 'LeftAside', props: ['leftCollapsed'], data: function() { return { treenode: '' }; }, methods: { addTab: function(url, text) { console.log(url, text); //调用vuex中的addTab方法,将点击的菜单对应的组件信息添加到已打开的openTabs中 this.$store.commit('addTab', { title: text, //Tab页签标题 name: url //组件的路由 }); //设置当前Tab面板为选中状态 this.$store.commit('setTabActive', url); } }, created() { //获取请求路径 /* let url = this.axios.urls.SYSTEM_TREENODE; */ let url = this.axios.urls.SYSTEM_QUERY; /* ,{username:sessionStorage.getItem("username")} */ console.log(url); //发送axios请求 this.axios.post(url, { username: sessionStorage.getItem("username") }).then(resp => { console.log(resp.data); this.treenode = resp.data.data; }).catch(resp => {}); //设置首页默认显示 // this.$router.push('/Home'); } } </script>
Main
<template style="background-color:floralwhite"> <el-container class="main-container"> <el-aside :class="openCollapse"> <LeftAside :open-collapsed="collapsed"></LeftAside> </el-aside> //选项卡控件 <el-container> <el-header class="main-header"> <TopNav @click-collapse="topClick"></TopNav> </el-header> <el-main class="main-center"> <el-tabs class="tabs-panel-fit" v-model="activeTab" type="border-card" closable @tab-remove="removeTab"> <el-tab-pane v-for="item in openTabs" :key="item.name" :label="item.title" :name="item.name"> <component :is="item.content"></component> </el-tab-pane> </el-tabs> </el-main> //时钟效果 <div id="app" style="margin-left: 200px;margin-top: -400px;font-size: 30px;"> {{date}} </div> </el-container> </el-container> </template> <script> import TopNav from '@/components/TopNav' import LeftAside from '@/components/LeftAside' export default { name: 'Main', data: function() { return { collapsed: false, date: new Date() }; }, methods: { topClick: function(collapsed) { this.collapsed = collapsed; }, removeTab: function(targetName) { //获取所有已打开的Tabs选项卡 let tabs = this.$store.getters.openTabs; //获取当前激活的Tab选项卡 let activeName = this.$store.getters.activeTab; //判断当前激活的Tab选项卡和当前被关闭的Tab选项卡是否相同 if (activeName === targetName) { //遍历已打开的选项卡 tabs.forEach((tab, index) => { //判断是否相同,并获取就近需要被激活选项卡 if (tab.name === targetName) { let nextTab = tabs[index + 1] || tabs[index - 1]; if (nextTab) { activeName = nextTab.name; } } }); } //激活选项卡 this.$store.commit('setTabActive', activeName); //删除Tab this.$store.commit('delTab', tabs.filter(tab => tab.name !== targetName)); } }, components: { TopNav, LeftAside }, computed: {//计算属性 openCollapse: function() { return !this.collapsed ? 'main-aside' : 'main-aside-collapsed' }, openTabs: function() { let openTabs = this.$store.getters.openTabs; let tabs = []; if (null == openTabs) return tabs; else { for (let tab of openTabs) { let component = resolve => require.ensure([], () => resolve(require('@/views' + tab.name + '.vue'))); tabs.push({ title: tab.title, name: tab.name, content: component }); } return tabs; } }, activeTab: { get() { return this.$store.getters.activeTab; }, set(val) { this.$store.commit('setTabActive', val); } } }, //展示时钟的方法 mounted() {//挂载完成 console.log(this.$route.path); if (this.$route.path == '/Home') { this.$store.commit('addTab', { title: '首页', name: '/Home' }); this.$store.commit('setTabActive', '/Home'); } let _this = this; // 声明一个变量指向Vue实例this,保证作用域一致 this.timer = setInterval(() => { _this.date = new Date(); // 修改数据date }, 1000) }, beforeDestroy() { if (this.timer) { clearInterval(this.timer); // 在Vue实例销毁前,清除我们的定时器 } } } </script> <style> .main-container { height: 100%; width: 100%; box-sizing: border-box; } .main-aside-collapsed { /* 在CSS中,通过对某一样式声明! important ,可以更改默认的CSS样式优先级规则,使该条样式属性声明具有最高优先级 */ width: 64px !important; height: 100%; background-color: #334157; margin: 0px; } .main-aside { width: 240px !important; height: 100%; background-color: #334157; margin: 0px; } .main-header, .main-center { padding: 0px; border-left: 2px solid #333; height: 100%; object-fit: fill; } .div-pagination { margin: 10px 0px; width: 100%; } /* 设置tabs内容面板100%填充父容器 */ .tabs-panel-fit { margin: 0; padding: 0; /* background-color:#1F2D3D; */ width: 100%; height: 100%; object-fit: fill; } /* 设置tabs内容面板的内边距为0 */ .el-tabs--border-card>.el-tabs__content { padding: 0; } /* 设置tab的表框效果(重要) */ .el-tabs.el-tabs--border-card { box-shadow: none; border-bottom: none; border: 0; } /*设置选项卡中第一个首页选项卡不能关闭*/ .el-tabs>.el-tabs__header .el-tabs__item:first-child>span { display: none; } /* elementUI dialog弹出框样式优化 */ .el-dialog { position: absolute; top: 50%; left: 50%; margin: 0 !important; transform: translate(-50%, -50%); max-height: calc(100% - 30px); max-width: calc(100% - 30px); display: flex; flex-direction: column; /* 圆角效果 */ border-radius: 0.4em; } .el-dialog>.el-dialog__body { overflow: auto; } .el-dialog__header { background-color: #F5F7FA; border-bottom: 1px solid #ccc; font-size: 14px; font-weight: bold; padding: 15px 20px 15px; /* 圆角效果 */ border-radius: 0.4em 0.4em 0em 0em; } .el-dialog__body { padding: 20px 15px; } .el-dialog__footer { background-color: #F5F7FA; border-top: 1px solid #ccc; padding: 15px; /* 圆角效果 */ border-radius: 0em 0em 0.4em 0.4em; } .el-form>.el-form-item:last-child { margin-bottom: 0px; } /* 更改table表格的高亮背景色*/ /* .el-table tr.current-row>td { background: #FFF68F; } */ .el-table .el-table__body tr:hover>td{ background: #FFF68F; font-weight:bold; color:#000000; } /* 分页组件 */ /* .div-pagination { margin: 10px 0px; width: 100%; } */ </style>
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持阿兔在线工具。