vue+elementui搭建後臺管理界面

 

1 會話存儲

使用html5的 sessionStorage 對象臨時保存會話

// 保存會話
sessionStorage.setItem('user', username) // 刪除會話
sessionStorage.removeItem('user', username)

 

2 將全部未登陸會話重定向到 /login

用 vue-router 的 beforeEach 實現
beforeEach 方法接收三個參數：

• to: Route: 即將要進入的目標 路由對象
• from: Route: 當前導航正要離開的路由
• next: Function: 必定要調用該方法來 resolve 這個鉤子。執行效果依賴 next 方法的調用參數。

修改 src/main.js 加入

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

 

3 編寫首頁

使用 elementui 的佈局容器

<el-container>
  <el-aside width="200px">Aside</el-aside>
  <el-container>
    <el-header>Header</el-header>
    <el-main>Main</el-main>
  </el-container>
</el-container>

 

新建 src/container/Container.vue

<template>
  <div class="app">
    <el-container>
      <el-aside class="app-side app-side-left" :class="isCollapse ? 'app-side-collapsed' : 'app-side-expanded'">
        <div class="app-side-logo">
          <img src="@/assets/logo.png" :width="isCollapse ? '60' : '60'" height="60" />
        </div>
        <div>
          <!-- 我是樣例菜單 -->
          <el-menu default-active="1-4-1"
                   class="el-menu-vertical-demo" @open="handleOpen" :collapse="isCollapse">
            <el-submenu index="1">
              <template slot="title">
                <i class="el-icon-location"></i>
                <span slot="title">導航一</span>
              </template>
              <el-menu-item-group>
                <span slot="title">分組一</span>
                <el-menu-item index="1-1">選項1</el-menu-item>
                <el-menu-item index="1-2">選項2</el-menu-item>
              </el-menu-item-group>
              <el-menu-item-group title="分組2">
                <el-menu-item index="1-3">選項3</el-menu-item>
              </el-menu-item-group>
              <el-submenu index="1-4">
                <span slot="title">選項4</span>
                <el-menu-item index="1-4-1">選項1</el-menu-item>
              </el-submenu>
            </el-submenu>
            <el-menu-item index="2">
              <i class="el-icon-menu"></i>
              <span slot="title">導航二</span>
            </el-menu-item>
            <el-menu-item index="3" disabled>
              <i class="el-icon-document"></i>
              <span slot="title">導航三</span>
            </el-menu-item>
            <el-menu-item index="4">
              <i class="el-icon-setting"></i>
              <span slot="title">導航四</span>
            </el-menu-item>
          </el-menu>
        </div>
      </el-aside>

      <el-container>
        <el-header class="app-header">
          <div style="width: 60px; cursor: pointer;" @click.prevent="toggleSideBar">
            <i v-show="!isCollapse" class="el-icon-d-arrow-left"></i>
            <i v-show="isCollapse" class="el-icon-d-arrow-right"></i>
          </div>
          <!-- 我是樣例菜單 -->
          <el-menu default-active="1"
                   class="el-menu-demo tab-page" mode="horizontal" @select="handleSelect" active-text-color="#409EFF">
            <el-menu-item index="1">處理中心</el-menu-item>
            <el-submenu index="2">
              <template slot="title">個人工做臺</template>
              <el-menu-item index="2-1">選項1</el-menu-item>
              <el-menu-item index="2-2">選項2</el-menu-item>
              <el-menu-item index="2-3">選項3</el-menu-item>
              <el-submenu index="2-4">
                <template slot="title">選項4</template>
                <el-menu-item index="2-4-1">選項1</el-menu-item>
                <el-menu-item index="2-4-2">選項2</el-menu-item>
                <el-menu-item index="2-4-3">選項3</el-menu-item>
              </el-submenu>
            </el-submenu>
            <el-menu-item index="3" disabled>消息中心</el-menu-item>
            <el-menu-item index="4">
              <a href="#">訂單管理</a>
            </el-menu-item>
          </el-menu>

          <div class="app-header-userinfo">
            <el-dropdown trigger="hover" :hide-on-click="false">
              <span class="el-dropdown-link"> {{ username }} <i class="el-icon-arrow-down el-icon--right"></i>
              </span>
              <el-dropdown-menu slot="dropdown">
                <el-dropdown-item>個人消息</el-dropdown-item>
                <el-dropdown-item>設置</el-dropdown-item>
                <el-dropdown-item divided @click.native="logout">退出登陸</el-dropdown-item>
              </el-dropdown-menu>
            </el-dropdown>
          </div>
        </el-header>

        <el-main class="app-body">
          <template>
            <router-view/>
          </template>
        </el-main>
      </el-container>
    </el-container>
  </div>
</template>

<script> export default { name: 'Container', data() { return { username: '', isCollapse: false } }, methods: { toggleSideBar() { this.isCollapse = !this.isCollapse }, logout: function () { this.$confirm('確認退出?', '提示', {}) .then(() => { sessionStorage.removeItem('user'); this.$router.push('/login'); }) .catch(() => { }); }, handleOpen(key, keyPath) { console.log(key, keyPath); }, handleClose(key, keyPath) { console.log(key, keyPath); }, handleSelect(key, keyPath) { console.log(key, keyPath); }, }, mounted: function () { let user = sessionStorage.getItem('user'); if (user) { this.username = user; } }, } </script>

<style>
</style>

 

4 在 router 導入容器組件

修改 src/router/index.js 爲

import Vue from 'vue' import Router from 'vue-router' import Login from '@/views/TheLogin' import Container from '@/container/Container' Vue.use(Router) export default new Router({ routes: [ { path: '/', name: 'Container', component: Container }, { path: '/login', name: 'Login', component: Login }, ] })

 

因爲容器使用了自定義類，要取消默認的 css 和 圖片渲染
再修改 src/App.vue :

<template>
  <router-view/>
</template>

<script> export default { name: 'App' } </script>

<style>
</style>

 

5 編寫 css

此時的頁面：

頁面骨架已經搭好，接下來就是裝飾
先安裝 node-sass sass-loader 模塊

npm install node-sass sass-loader --save-dev

新建 src/styles/index.scss

html { height: 100%; } body { position: relative; top: 0; left: 0; margin: 0; padding: 0; -webkit-box-sizing: border-box; box-sizing: border-box; width: 100%; height: 100%; overflow: hidden; } .app { $solidBorder: 1px solid #eee; $sideCollapsedWidth: 66px; $sideExpandedWidth: 230px; font-family: "Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微軟雅黑",Arial,sans-serif; font-size: 1em; width: 100%; height: 100%; min-width: 900px; border: $solidBorder; display: flex; display: -webkit-flex; flex-flow: row nowrap; &-side { width: 230px; height: 100%; font-weight: 700; border-right: $solidBorder; &-left { background-color: rgb(238, 241, 246); } &-logo { height: 60px; text-align: center; } &-collapsed { width: 66px!important; } &-expanded { width: 230px!important; } } &-header { width: 100%; height: 60px; display: flex; flex-flow: row nowrap; justify-content: flex-start; align-items: center; border-bottom: $solidBorder; &-userinfo { position: absolute; right: 0; margin-right: 25px; display: flex; flex-flow: row nowrap; height: 60px; justify-content: flex-start; align-items: center; } } &-body { font-size: 1em; width: 100%; height: 100%; padding: 20px; overflow-y: scroll; } &-footer { width: 100%; height: 60px; } } .inline-block { display: inline-block; }

 

在 src/main.js 中引入該文件

import '@/styles/index.scss'

 

頁面效果: