Vue主页面功能详情

1、首先配置好主页面

Home.vue:

<template>
  <el-container class="home-container">
    
    <el-header>
      <div>
        <img src="../assets/logo.png" alt="" />
        <span>后台管理系统span>
      div>
      <el-button type="info" @click="logout">退出el-button>el-header
    >
    
    <el-container>
      
      <el-aside width="200px">
        
        <el-menu
          background-color="#042a3d"
          text-color="#fff"
          active-text-color="#ffd04b"
        >
          
          <el-submenu index="1">
            <template slot="title">
              <i class="el-icon-location">i>
              <span>导航一span>
            template>
            
            <el-menu-item index="1-1">
              <template slot="title">
                <i class="el-icon-location">i>
                <span>导航一的二级菜单span>
              template>
            el-menu-item>
          el-submenu>
        el-menu>
      el-aside>
      
      <el-main>Mainel-main>
    el-container>
  el-container>
template>

<script>
export default {
  methods: {
    // 退出登陆，清除Token，返回login
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
  },
}
script>

<style lang="less" scoped>
.home-container {
  height: 100%;
}
/* 头部区域 */
.el-header {
  background-color: #363d41;
  display: flex;
  justify-content: space-between; /* 均匀排列每个元素,首个元素放置于起点,末尾元素放置于终点 */
  padding-left: 0;
  align-items: center; /* 上下居中 */
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    img {
      width: 30px;
      height: 30px;
    }
    span {
      margin-left: 15px;
    }
  }
}
.el-aside {
  background-color: #042a3d;
}
.el-main {
  background-color: #e8ebec;
}
style>

element.js:

import Vue from 'vue'
import {
  Button,
  Form,
  FormItem,
  Input,
  Message,
  Container,
  Header,
  Aside,
  Main,
  Menu,
  Submenu,
  MenuItem,
} from 'element-ui'

Vue.use(Button)
Vue.use(Form)
Vue.use(FormItem)
Vue.use(Input)
Vue.use(Container)
Vue.use(Header)
Vue.use(Aside)
Vue.use(Main)
Vue.use(Menu)
Vue.use(Submenu)
Vue.use(MenuItem)
// 把弹框Message挂载到vue的原型对象上
Vue.prototype.$message = Message

2、通过api获取左菜单栏数据,存放到menuList中，然后利用v-for渲染到html中

<template>
  <el-container class="home-container">
    
    <el-header>
      <div>
        <img src="../assets/logo.png" alt="" />
        <span>后台管理系统span>
      div>
      <el-button type="info" @click="logout">退出el-button>el-header
    >
    
    <el-container>
      
      <el-aside width="200px">
        
        <el-menu
          background-color="#042a3d"
          text-color="#fff"
          active-text-color="#ffd04b"
        >
          
          <el-submenu
            v-for="item in menuList"
            :key="item.id"
            :index="item.id + ''"
          >
            
            <template slot="title">
              <i :class="iconsObj[item.id]">i>
              <span>{{ item.authName }}span>
            template>
            
            <el-menu-item
              v-for="subItem in item.children"
              :key="subItem.id"
              :index="subItem.id + ''"
            >
              <template slot="title">
                <i class="el-icon-menu">i>
                <span>{{ subItem.authName }}span>
              template>
            el-menu-item>
          el-submenu>
        el-menu>
      el-aside>
      
      <el-main>Mainel-main>
    el-container>
  el-container>
template>

<script>
export default {
  data() {
    return {
      // 左侧菜单数据
      menuList: [],
      iconsObj: {
        125: 'iconfont icon-iconfontuser',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao',
      },
    }
  },
  // 在模板渲染成html前调用方法获取左侧菜单栏数据
  created() {
    this.getMenuList()
  },
  methods: {
    // 退出登陆，清除Token，返回login
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    // 访问api获取左侧菜单栏数据，把数据添加到menuList中
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) {
        return this.$message.console.error(res.meta.msg)
      }
      this.menuList = res.data
      console.log(res)
    },
  },
}
script>

3、左侧菜单栏折叠（Collapse）

<template>
  <el-container class="home-container">
    
    <el-header>
      <div>
        <img src="../assets/logo.png" alt="" />
        <span>后台管理系统span>
      div>
      <el-button type="info" @click="logout">退出el-button>el-header
    >
    
    <el-container>
      
      <el-aside :width="isCollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="toggleCollapse">|||div>
        
        <el-menu
          background-color="#042a3d"
          text-color="#fff"
          active-text-color="#ffd04b"
          unique-opened
          :collapse="isCollapse"
          :collapse-transition="false"
        >
          
          <el-submenu
            v-for="item in menuList"
            :key="item.id"
            :index="item.id + ''"
          >
            
            <template slot="title">
              <i :class="iconsObj[item.id]">i>
              <span>{{ item.authName }}span>
            template>
            
            <el-menu-item
              v-for="subItem in item.children"
              :key="subItem.id"
              :index="subItem.id + ''"
            >
              <template slot="title">
                <i class="el-icon-menu">i>
                <span>{{ subItem.authName }}span>
              template>
            el-menu-item>
          el-submenu>
        el-menu>
      el-aside>
      
      <el-main>Mainel-main>
    el-container>
  el-container>
template>

<script>
export default {
  data() {
    return {
      // 左侧菜单数据
      menuList: [],
      // 左侧菜单图标数组
      iconsObj: {
        125: 'iconfont icon-iconfontuser',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao',
      },
      // 左侧菜单是否折叠
      isCollapse: false,
    }
  },
  // 在模板渲染成html前调用方法获取左侧菜单栏数据
  created() {
    this.getMenuList()
  },
  methods: {
    // 退出登陆，清除Token，返回login
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    // 访问api获取左侧菜单栏数据，把数据添加到menuList中
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) {
        return this.$message.console.error(res.meta.msg)
      }
      this.menuList = res.data
      console.log(res)
    },
    // 点击按钮，折叠左侧菜单
    toggleCollapse() {
      this.isCollapse = !this.isCollapse
    },
  },
}
script>

<style lang="less" scoped>
.home-container {
  height: 100%;
}
/* 头部区域 */
.el-header {
  background-color: #363d41;
  display: flex;
  justify-content: space-between; /* 均匀排列每个元素,首个元素放置于起点,末尾元素放置于终点 */
  padding-left: 0;
  align-items: center; /* 上下居中 */
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    img {
      width: 30px;
      height: 30px;
    }
    span {
      margin-left: 15px;
    }
  }
}
.el-aside {
  background-color: #042a3d;
  .el-menu {
    border-right: none;
  }
}
.el-main {
  background-color: #e8ebec;
}
.iconfont {
  margin-right: 10px;
}
.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
style>

4、访问Home.vue之后，跳转到子路由welcome.vue页面

router/index.js:

import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/shop_login.vue'
import Home from '../components/shop_home.vue'
import Welcome from '../components/shop_welcome.vue'
Vue.use(VueRouter)

// 路由规则
const routes = [
  // 必须要先登陆
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  {
    path: '/home',
    component: Home,
    // home访问之后重定向welcome
    redirect: '/welcome',
    // welcome以子路由显示
    children: [{ path: '/welcome', component: Welcome }
    ]
  },
]

const router = new VueRouter({
  routes,
})

/*
1、to将要访问的路径
2、from代表从哪个路径跳转过来
3、next是一个函数、表示放行
*/

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  // 判断是否登陆成功过
  if (!tokenStr) return next('/login')
  next()
})

export default router

Home.vue(路由占位符):

      <el-main>
        
        <router-view>router-view>
      el-main>

5、绑定左侧数据栏路由改造

Home.vue:

<template>
  <el-container class="home-container">
    
    <el-header>
      <div>
        <img src="../assets/logo.png" alt="" />
        <span>后台管理系统span>
      div>
      <el-button type="info" @click="logout">退出el-button>el-header
    >
    
    <el-container>
      
      <el-aside :width="isCollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="toggleCollapse">|||div>
        
        <el-menu
          background-color="#042a3d"
          text-color="#fff"
          active-text-color="#ffd04b"
          unique-opened
          :collapse="isCollapse"
          :collapse-transition="false"
          :router="true"
        >
          
          <el-submenu
            v-for="item in menuList"
            :key="item.id"
            :index="item.id + ''"
          >
            
            <template slot="title">
              <i :class="iconsObj[item.id]">i>
              <span>{{ item.authName }}span>
            template>
            
            <el-menu-item
              v-for="subItem in item.children"
              :key="subItem.id"
              :index="'/' + subItem.path"
            >
              <template slot="title">
                <i class="el-icon-menu">i>
                <span>{{ subItem.authName }}span>
              template>
            el-menu-item>
          el-submenu>
        el-menu>
      el-aside>
      
      <el-main>
        
        <router-view>router-view>
      el-main>
    el-container>
  el-container>
template>