不说废话，先上效果图~





具体的实现方法，参照以下步骤~

1. 创建login.vue，绘制login画面，添加跳转事件。

<template>
    <div class="login-container">
        <el-form :model="ruleForm2" :rules="rules2"
         status-icon
         ref="ruleForm2" 
         label-position="left" 
         label-width="0px" 
         class="demo-ruleForm login-page">
            <h3 class="title">登录平台</h3>
            <el-form-item prop="username">
                <el-input type="text" 
                    v-model="ruleForm2.username" 
                    auto-complete="off" 
                    placeholder="用户名"></el-input>
            </el-form-item>
            <el-form-item prop="password">
                <el-input type="password" 
                    v-model="ruleForm2.password" 
                    auto-complete="off" 
                    placeholder="密码"></el-input>
            </el-form-item>
            <el-form-item style="width:100%;">
                <el-button type="primary" style="width:100%;" @click="handleSubmit" :loading="logining">登录</el-button>
            </el-form-item>
            <el-form-item >
                <el-checkbox 
                    v-model="checked"
                    class="rememberme">记住密码</el-checkbox>
                <el-button type="text" @click="forgetpassword">忘记密码</el-button>
            </el-form-item>
            
        </el-form>
    </div>

</template>

<script>
  import { requestLogin } from '../api/api';
  export default {
    data() {
      return {
        logining: false,
        ruleForm2: {
        },
        rules2: {
          account: [
            { required: true, message: '请输入账号', trigger: 'blur' },
          ],
          checkPass: [
            { required: true, message: '请输入密码', trigger: 'blur' },
          ]
        },
        checked: true
      };
    },
    methods: {
      handleReset2() {
        this.$refs.ruleForm2.resetFields();
      },
      handleSubmit(ev) {
        this.$refs.ruleForm2.validate((valid) => {
          if (valid) {
            this.logining = true;
            var loginParams = { username: this.ruleForm2.username, password: this.ruleForm2.password, identifycode: this.ruleForm2.identifycode };
            requestLogin(loginParams).then(data => {
              this.logining = false;
              let { msg, code, user } = data;
              if (code !== 200) {
                this.$message({
                  message: msg,
                  type: 'error'
                });
              } else {
                if (user.type === "admin"){
                    sessionStorage.setItem('user', JSON.stringify(user));
                    this.$router.push({ path: '/homepage' });
                } else if (user.type === "advert") {
                    sessionStorage.setItem('user', JSON.stringify(user));
                    this.$router.push({ path: '/table' });
                }
              }
            });
          } else {
            console.log('error submit!!');
            return false;
          }
        });
      },
      forgetpassword(){
          this.$alert('请联系管理员找回密码，管理员电话：131xxxxxxxx', '提示', {
          confirmButtonText: '确定',
          type: 'warning'
        })
      }
    }
  }
</script>

<style scoped>
    label.el-checkbox.rememberme {
        margin: 0px 0px 15px;
        text-align: left;
    }
    label.el-button.forget {
        margin: 0;
        padding: 0;
        border: 1px solid transparent;
        outline: none;
    }
</style>

2.创建Home.vue菜单栏页面

<template>
    <el-row class="container">
        <el-col :span="24" class="header">
			<el-col :span="18" class="logo" >
                {{sysName}}
			</el-col>
			<el-col :span="4" class="userinfo">
				<el-dropdown trigger="hover">
					<span class="el-dropdown-link userinfo-inner"><img :src="this.sysUserAvatar" /> {{sysUserName}}</span>
					<el-dropdown-menu slot="dropdown">
						<el-dropdown-item>我的消息</el-dropdown-item>
						<el-dropdown-item>设置</el-dropdown-item>
						<el-dropdown-item @click.native="logout">退出登录</el-dropdown-item>
					</el-dropdown-menu>
				</el-dropdown>
			</el-col>
		</el-col>
        <el-col :span="24" class="main">
            <aside>
                <el-menu :default-active="$route.path" class="el-menu el-menu-vertical-demo" @select="handleselect"
                        unique-opened router >
                        <template v-for="(item,index) in $router.options.routes" v-if="!item.hidden">
						<el-submenu :index="index+''" v-if="!item.leaf">
							<template slot="title"><i :class="item.iconCls"></i>{{item.name}}</template>
							<el-menu-item v-for="child in item.children" :index="child.path" :key="child.path" v-if="!child.hidden">{{child.name}}</el-menu-item>
						</el-submenu>
						<el-menu-item v-if="item.leaf&&item.children.length>0" :index="item.children[0].path"><i :class="item.iconCls"></i>{{item.children[0].name}}</el-menu-item>
					</template>
                </el-menu>
            </aside>
			<section class="content-container">
				<div class="grid-content bg-purple-light">
					<el-col :span="24" class="breadcrumb-container">
						<strong class="title">{{$route.name}}</strong>
					</el-col>
					<el-col :span="24" class="content-wrapper">
						<transition name="fade" mode="out-in">
							<router-view></router-view>
						</transition>
					</el-col>
				</div>
			</section>
		</el-col>
    </el-row>
</template>

<script>
export default {
    data() {
			return {
				sysName:'xxx管理平台',
				sysUserName: '',
				sysUserAvatar: '',
				form: {
					name: '',
					region: '',
					date1: '',
					date2: '',
					delivery: false,
					type: [],
					resource: '',
					desc: ''
				}
			}
        },
    methods: {
			//退出登录
			logout: function () {
				var _this = this;
				this.$confirm('确认退出吗?', '提示', {
					//type: 'warning'
				}).then(() => {
					sessionStorage.removeItem('user');
					_this.$router.push('/login');
				}).catch(() => {

				});
			}
		},
    mounted() {
			var user = sessionStorage.getItem('user');
			if (user) {
				user = JSON.parse(user);
				this.sysUserName = user.name || '';
				this.sysUserAvatar = user.avatar || '';
			}

		}
}
</script>

<style scoped lang="scss">
@import '../style/vars.scss';

    .container {
		position: absolute;
		top: 0px;
		bottom: 0px;
		width: 100%;
    }
    .header {
			height: 60px;
            line-height: 60px;
			background: $color-primary;
			color:#fff;
			.userinfo {
				text-align: right;
				padding-right: 35px;
				float: right;
				.userinfo-inner {
					cursor: pointer;
					color:#fff;
					img {
						width: 40px;
						height: 40px;
						border-radius: 20px;
						margin: 10px 0px 10px 10px;
						float: right;
					}
				}
			}
			.logo {
				height:60px;
				font-size: 22px;
				padding-left:20px;
				img {
					width: 40px;
					float: left;
					margin: 10px 10px 10px 0px;
				}
				.txt {
                    color:#fff;
				}
			}
			.logo-width{
				width:230px;
			}
			.logo-collapse-width{
				width:60px
			}
			.title{
                font-size: 22px;
				padding-left:20px;
				line-height: 60px;
				color:#fff;
			}
        }
    .main {
			display: flex;
			position: absolute;
			top: 60px;
			bottom: 0px;
			overflow: hidden;
			aside {
				flex:0 0 230px;
				width: 230px;
				.el-menu{
                    height: 100%;
                    /* width: 34%; */
				}
			}
			.content-container {
				flex:1;
				/* overflow-y: scroll; */
				padding: 20px;
				.breadcrumb-container {
					.title {
						width: 200px;
						float: left;
						color: #475669;
					}
					.breadcrumb-inner {
						float: right;
					}
				}
				.content-wrapper {
					background-color: #fff;
					box-sizing: border-box;
				}
			}
		}
</style>

3.制作子页面

<template>
   <p> homepage</p>
</template>

4. 路由配置

import Login from './views/Login.vue'
import Home from './views/Home.vue'
import Homepage from './views/list/homepage.vue' 
import Table from './views/list/Table.vue'

let routes = [
    {
        path: '/login',
        component: Login,
        name: '',
        hidden: true
    },
    {
        path: '/',
        component: Home,
        name: '',
        leaf: true,//只有一个节点
        iconCls: 'el-icon-menu', //图标样式class
        children: [
            { path: '/homepage', component: Homepage, name: '首页' },
        ]
    },
    {
        path: '/',
        component: Home,
        name: '菜单',
        // leaf: true,//只有一个节点
        iconCls: 'el-icon-message', //图标样式class
        children: [
            { path: '/table', component: Table, name: '子菜单01' }
        ]
    }
];

export default routes;

6.main.js实现

// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import VueRouter from 'vue-router'
import routes from './routes'
import Vuex from 'vuex'
import store from './vuex/store'
import ElementUI from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'
import Mock from './mock'
Mock.bootstrap();
import './style/login.css'

/* Vue.use(VueAxios, axios) */
Vue.use(ElementUI)
Vue.use(VueRouter)
Vue.use(Vuex)
Vue.config.productionTip = false

const router = new VueRouter({
  routes
})

router.beforeEach((to, from, next) => {
  //NProgress.start();
  if (to.path == '/login') {
    sessionStorage.removeItem('user');
  }
  let user = JSON.parse(sessionStorage.getItem('user'));
  if (!user && to.path != '/login') {
    next({ path: '/login' })
  } else {
    next()
  }
})

new Vue({
  router,
  store,
  render: h => h(App)
}).$mount('#app')

这样一个登陆画面就实现了，具体的源码可以参照：
https://download.csdn.net/download/ying940718/11085694