1. 左中右菜单布局

   <template><el-container><el-menu  class="el-menu-vertical-demo" style="width: 80px; height: 100vh;"background-color="#545c64"text-color="#fff"active-text-color="#ffd04b"@select="handleSelect" @open="handleOpen" @close="handleClose" :collapse="isCollapse"><el-menu-item :index="item.path" :key="item.path" v-for="item in sidebarRouters" v-if="item.meta" ><i class="el-icon-menu"><div style="font-size: 14px"><y>{{ item.meta.title.substring(0, 2) }}</y></div></i></el-menu-item></el-menu><el-menu style="width: 200px; height: 100vh;"class="el-menu-vertical-demo"background-color="#545c64"text-color="#fff"routeractive-text-color="#ffd04b"><el-menu-item  :index="item.path" :key="item.path" v-for="(item , index) in menuChildArr"><i class="el-icon-menu"></i><span >{{item.name}}</span></el-menu-item></el-menu><div class="scroll-box"><el-main><router-view></router-view></el-main></div></el-container></template><style>
   .el-menu-vertical-demo:not(.el-menu--collapse) {width: 200px;min-height: 400px;
   }.scroll-box {width: 100%;height: 100vh; /* 占据屏幕高度的 50% */overflow-y: auto; /* 垂直滚动 */box-sizing: border-box;
   }</style><script>
   import store from "@/store";export default {data() {return {sidebarRouters: store.getters.sidebarRouters,countIndex: 0,menuChildMap:{},menuChildArr:  [{name: '用户管理',path: '/system/user'},{name: '角色管理',path: '/system/role'}],isCollapse: true};},methods: {handleOpen(key, keyPath) {},handleSelect(key, keyPath){console.log("AAAAAAA="+ keyPath);console.log(key, keyPath);this.countIndex++;this.menuChildArr=[];let sidebarRouters = this.sidebarRouters;for (let i = 0; i < sidebarRouters.length; i++) {let item = sidebarRouters[i];if (item.meta && item.path==keyPath) {let title = item.meta.title;let children = item.children;for (let j = 0; j < children.length; j++) {let child = children[j];console.log("PPPPP:"+item.path+'/'+child.path);this.menuChildArr.push({name:child.meta.title, path:item.path+'/'+child.path});}}}console.log(JSON.stringify(this.menuChildArr));},handleClose(key, keyPath) {console.log(key, keyPath);}}
   }
   </script>
   

2. 左右菜单布局

   <template><el-container><el-header style="background-color:#545c64;color: #fff;height: 7vh;"><h1>TMS运输管理系统</h1></el-header><el-container><div class="menu-container"><el-menu:default-active="activeIndex2"class="custom-menu"mode="vertical"@select="handleSelect"background-color="#545c64"text-color="#fff"routeractive-text-color="#ffd04b"><el-submenu  style="background-color: #545c64;" :index="item.path" :key="item.path" v-for="item in sidebarRouters" v-if="item.meta"><template slot="title" style="background-color: #545c64;">{{ item.meta.title }}</template><el-menu-item   style="background-color: #545c64;" :key="child.path" :index="item.path+'/'+child.path" v-for="child in item.children" v-if="child.meta" >{{ child.meta.title }}</el-menu-item></el-submenu><!--<el-menu-item index="/bar" >消息中心</el-menu-item><el-menu-item index="/foo" >消息中心2</el-menu-item><el-menu-item index=""><a href="https://www.ele.me" target="_blank">订单管理</a></el-menu-item>--></el-menu></div><div class="scroll-box"><!-- 路由出口 --><!-- 路由匹配到的组件将渲染在这里 --><el-tagstyle="margin: 5px;":key="tag"v-for="(tag ,index) in dynamicTags"closable:disable-transitions="false":effect="tag.effect"@click="handleClick(tag)"@close="handleClose(tag)"><router-link :to="tag.path"> {{tag.name}} </router-link></el-tag><router-view></router-view></div></el-container></el-container></template><script>import {mapState} from "vuex";
   import store from '@/store'
   export default {name: 'Layout',data() {return {effectValue:'plain',dynamicTags: [{name:'首页',path:'/',effect:'plain'}],activeIndex2: '0',menuIndexName:{'/system/user':'用户管理', '/system/role':'角色管理',  '/system/menu':'菜单管理',  '/system/dept':'部门管理', '/system/dict':'字典管理', '/system/post':'岗位管理','/system/job':'任务管理', '/system/config':'参数管理', '/system/notice':'通知公告', '/system/logininfor':'登录日志', '/system/operlog':'操作日志'},sidebarRouters: store.getters.sidebarRouters};},methods: {handleSelect(key, keyPath) {//console.log(JSON.stringify(store.getters.sidebarRouters))console.log(key, keyPath);let menuIndexName1 = new Map();let sidebarRouters = this.sidebarRouters;console.log("PPPPPFull111:"+JSON.stringify(sidebarRouters));for (let i = 0; i < sidebarRouters.length; i++) {let item = sidebarRouters[i];if (item.meta) {let title = item.meta.title;let children = item.children;for (let j = 0; j < children.length; j++) {let child = children[j];let pathFull = item.path+'/'+child.path;let titleChild = child.meta.title;console.log("PPPPP:"+pathFull,titleChild);menuIndexName1.set(pathFull,titleChild); // ={item.path+'/'+child.path:child.meta.title};}}}console.log("PPPPPFull:"+JSON.stringify(menuIndexName1));//置灰其它菜单按钮tagthis.dynamicTags.forEach(item => {item.effect='plain';});//激活当前菜单按钮taglet menuName = menuIndexName1.get(keyPath[1]);let menuNameJson={name:menuName, path:keyPath[1],effect:'dark'};this.dynamicTags.push(menuNameJson);//this.$router.push({path: keyPath});},handleClose(tag) {this.dynamicTags.splice(this.dynamicTags.indexOf(tag), 1);//激活后一个按钮tagif(this.dynamicTags.length>1){let dynamicTagsCur = this.dynamicTags[this.dynamicTags.length-1];dynamicTagsCur.effect='dark';let returnUrl = dynamicTagsCur.path;//刷新路由//this.$router.replace(decodeURIComponent(returnUrl || '/'));this.$router.push({path: returnUrl,query: {...this.$route.query,timestamp: Date.now()}});}},handleClick(tag){//置灰其它菜单按钮tagthis.dynamicTags.forEach(item => {item.effect='plain';});//单击事件激活当前按钮tag.effect='dark';}}
   };</script><style scoped lang="scss">
   .el-tag + .el-tag {margin: 5px;
   }
   .menu-container {display: flex;width:  15vw;height: 93vh; /* 占据整个视口高度 */
   }.custom-menu {flex: 1;height: 100%; /* 高度自适应父容器 */
   }
   .scroll-box {width:  100%;height: 93vh; /* 占据屏幕高度的 50% */overflow-y: auto; /* 垂直滚动 */box-sizing: border-box;
   }</style>
   

3. 上下菜单布局

 

<template><div id="app"><el-menu:default-active="activeIndex2"class="el-menu-demo"mode="horizontal"@select="handleSelect"background-color="#545c64"text-color="#fff"routeractive-text-color="#ffd04b"><el-submenu :index="item.path" :key="item.path" v-for="item in sidebarRouters" v-if="item.meta"><template slot="title" >{{ item.meta.title }}</template><el-menu-item  :key="child.path" :index="item.path+'/'+child.path" v-for="child in item.children" v-if="child.meta" >{{ child.meta.title }}</el-menu-item></el-submenu><!--<el-menu-item index="/bar" >消息中心</el-menu-item><el-menu-item index="/foo" >消息中心2</el-menu-item><el-menu-item index=""><a href="https://www.ele.me" target="_blank">订单管理</a></el-menu-item>--></el-menu><!-- 路由出口 --><!-- 路由匹配到的组件将渲染在这里 --><el-tag:key="tag"v-for="(tag ,index) in dynamicTags"closable:disable-transitions="false":effect="tag.effect"@click="handleClick(tag)"@close="handleClose(tag)"><router-link :to="tag.path"> {{tag.name}} </router-link></el-tag><router-view></router-view></div></template><script>import {mapState} from "vuex";
import store from '@/store'
export default {name: 'Layout',data() {return {effectValue:'plain',dynamicTags: [{name:'首页',path:'/',effect:'plain'}],activeIndex2: '0',menuIndexName:{'/system/user':'用户管理', '/system/role':'角色管理',  '/system/menu':'菜单管理',  '/system/dept':'部门管理', '/system/dict':'字典管理', '/system/post':'岗位管理','/system/job':'任务管理', '/system/config':'参数管理', '/system/notice':'通知公告', '/system/logininfor':'登录日志', '/system/operlog':'操作日志'},sidebarRouters: store.getters.sidebarRouters};},methods: {handleSelect(key, keyPath) {//console.log(JSON.stringify(store.getters.sidebarRouters))console.log(key, keyPath);let menuIndexName1 = new Map();let sidebarRouters = this.sidebarRouters;console.log("PPPPPFull111:"+JSON.stringify(sidebarRouters));for (let i = 0; i < sidebarRouters.length; i++) {let item = sidebarRouters[i];if (item.meta) {let title = item.meta.title;let children = item.children;for (let j = 0; j < children.length; j++) {let child = children[j];let pathFull = item.path+'/'+child.path;let titleChild = child.meta.title;console.log("PPPPP:"+pathFull,titleChild);menuIndexName1.set(pathFull,titleChild); // ={item.path+'/'+child.path:child.meta.title};}}}console.log("PPPPPFull:"+JSON.stringify(menuIndexName1));//置灰其它菜单按钮tagthis.dynamicTags.forEach(item => {item.effect='plain';});//激活当前菜单按钮taglet menuName = menuIndexName1.get(keyPath[1]);let menuNameJson={name:menuName, path:keyPath[1],effect:'dark'};this.dynamicTags.push(menuNameJson);//this.$router.push({path: keyPath});},handleClose(tag) {this.dynamicTags.splice(this.dynamicTags.indexOf(tag), 1);//激活后一个按钮tagif(this.dynamicTags.length>1){let dynamicTagsCur = this.dynamicTags[this.dynamicTags.length-1];dynamicTagsCur.effect='dark';let returnUrl = dynamicTagsCur.path;//刷新路由//this.$router.replace(decodeURIComponent(returnUrl || '/'));this.$router.push({path: returnUrl,query: {...this.$route.query,timestamp: Date.now()}});}},handleClick(tag){//置灰其它菜单按钮tagthis.dynamicTags.forEach(item => {item.effect='plain';});//单击事件激活当前按钮tag.effect='dark';}}
};</script><style scoped lang="scss">
.el-tag {margin: 5px;
}
</style>