SPA项目开发之首页导航+左侧菜单

文章目录

    • 内容:
    • 1. Mock.js
    • 主页面中引入我们的左边树形菜单和顶部导航

内容:

详解接着以上博客:https://blog.csdn.net/LIN_17970/article/details/99059542

  1. mock.js模拟响应ajax请求

  2. 通过js代码完成路由的跳转

  3. 后台主界面的搭建

  4. 退出功能

  5. 左侧树收缩功能(vue总线的概念)

1. Mock.js

前后端分离开发开发过程当中,经常会遇到以下几个尴尬的场景:

  1. 老大,接口文档还没输出,我的好多活干不下去啊!

  2. 后端小哥,接口写好了没,我要测试啊!

前后端分离之后,前端迫切需要一种机制,不再需要依赖后端接口开发,而今天的主角mockjs就可以做到这一点

Mock.js是一个模拟数据的生成器,用来帮助前端调试开发、进行前后端的原型分离以及用来提高自动化测试效率。

众所周知Mock.js因为两个重要的特性风靡前端:

数据类型丰富

支持生成随机的文本、数字、布尔值、日期、邮箱、链接、图片、颜色等。

拦截Ajax请求

不需要修改既有代码,就可以拦截Ajax请求,返回模拟的响应数据。

更多内容,可以云Mockjs官方查看“http://mockjs.com/”

注1:easy-mock,一个在线模拟后台的数据平台

  1. Mock.js使用步骤

2.1 安装mockjs依赖

  npm install mockjs -D              #只在开发环境使用

2.2 引入

为了只在开发环境使用mock,而打包到生产环境时自动不使用mock,我们可以在env中做一个配置

  (1)dev.env

  module.exports = merge(prodEnv, {

NODE_ENV: '"development"',

MOCK: 'true'

  })

  

  (2)prod.env

  module.exports = {

NODE_ENV: '"production"',

MOCK: 'false'

  }

(3)main.js

  //开发环境下才会引入mockjs

  process.env.MOCK && require('@/mock')
  • 在src目录下创建mock目录,定义mock主文件index.js,并在该文件中定义拦截路由配置
  • index.js
import action from '@/api/action' //引入请求地址

//全局设置:设置所有ajax请求的超时时间,模拟网络传输耗时
Mock.setup({
	// timeout: 400  //延时400s请求到数据
	timeout: 200 - 400 //延时200-400s请求到数据
})

//引登陆的测试数据,并添加至mockjs
import loginInfo from '@/mock/json/login-mock.js'
let s1 = action.getFullPath('SYSTEM_USER_DOLOGIN')
Mock.mock(s1, "post", loginInfo)
// Mock.mock(s1, /post|get/i, loginInfo)

主页面中引入我们的左边树形菜单和顶部导航

  • AppMain.vue
<template>
	<el-container class="main-container">
		<el-aside v-bind:class="asideClass">
			<LeftNav></LeftNav>
		</el-aside>
		<el-container>
			<el-header class="main-header">
				<TopNav></TopNav>
			</el-header>
			<el-main class="main-center">Main</el-main>
		</el-container>
	</el-container>
</template>

<script>
	// 导入组件
	import TopNav from '@/components/TopNav.vue'
	import LeftNav from '@/components/LeftNav.vue'

	// 导出模块
	export default {
		data(){
		  return{
		    asideClass:'main-aside'
		  };
		},
    components:{
      TopNav,LeftNav
    },
    created(){
      this.$root.Bus.$on("collapsed-side",(v)=>{
        this.asideClass = v ? 'main-aside-collapsed' : 'main-aside';
      })
    }
	};
</script>
<style scoped>
	.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;
	}
</style>
  • 左部树形菜单LeftNav.vue
<template>
	<el-menu default-active="2" class="el-menu-vertical-demo" @open="handleOpen" @close="handleClose" background-color="#334157"
	 text-color="#fff" active-text-color="#ffd04b" :collapse="collapsed" :collapse-transition="bb">
		<!-- <el-menu default-active="2" :collapse="collapsed" collapse-transition router :default-active="$route.path" unique-opened class="el-menu-vertical-demo" background-color="#334157" text-color="#fff" active-text-color="#ffd04b"> -->
		<div class="logobox">
			<img class="logoimg" src="../assets/img/logo.png" alt="">
		</div>
		<el-submenu index="1">
			<template slot="title">
				<i class="el-icon-location"></i>
				<span>导航一</span>
			</template>
			<el-menu-item-group>
				<template slot="title">分组一</template>
				<el-menu-item index="1-1">选项1</el-menu-item>
				<el-menu-item index="1-2">选项2</el-menu-item>
			</el-menu-item-group>
			<el-menu-item-group title="分组2">
				<el-menu-item index="1-3">选项3</el-menu-item>
			</el-menu-item-group>
			<el-submenu index="1-4">
				<template slot="title">选项4</template>
				<el-menu-item index="1-4-1">选项1</el-menu-item>
			</el-submenu>
		</el-submenu>
		<el-menu-item index="2">
			<i class="el-icon-menu"></i>
			<span slot="title">导航二</span>
		</el-menu-item>
		<el-menu-item index="3" disabled>
			<i class="el-icon-document"></i>
			<span slot="title">导航三</span>
		</el-menu-item>
		<el-menu-item index="4">
			<i class="el-icon-setting"></i>
			<span slot="title">导航四</span>
		</el-menu-item>
	</el-menu>
</template>
<script>
	export default {
		data(){
      return{
        collapsed:false
      };
    },
    created(){
      this.$root.Bus.$on("collapsed-side",(v)=>{
        this.collapsed = v;
      })
    }
	}
</script>
<style>
	.el-menu-vertical-demo:not(.el-menu--collapse) {
		width: 240px;
		min-height: 400px;
	}

	.el-menu-vertical-demo:not(.el-menu--collapse) {
		border: none;
		text-align: left;
	}

	.el-menu-item-group__title {
		padding: 0px;
	}

	.el-menu-bg {
		background-color: #1f2d3d !important;
	}

	.el-menu {
		border: none;
	}

	.logobox {
		height: 40px;
		line-height: 40px;
		color: #9d9d9d;
		font-size: 20px;
		text-align: center;
		padding: 20px 0px;
	}

	.logoimg {
		height: 40px;
	}
</style>
  • 顶部导航TopNav.vue
<template>
	<!-- <el-menu :default-active="activeIndex2" class="el-menu-demo" mode="horizontal" @select="handleSelect" background-color="#545c64"
	 text-color="#fff" active-text-color="#ffd04b">
		<el-menu-item index="1">处理中心</el-menu-item>
		<el-submenu index="2">
			<template slot="title">我的工作台</template>
			<el-menu-item index="2-1">选项1</el-menu-item>
			<el-menu-item index="2-2">选项2</el-menu-item>
			<el-menu-item index="2-3">选项3</el-menu-item>
			<el-submenu index="2-4">
				<template slot="title">选项4</template>
				<el-menu-item index="2-4-1">选项1</el-menu-item>
				<el-menu-item index="2-4-2">选项2</el-menu-item>
				<el-menu-item index="2-4-3">选项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="https://www.ele.me" target="_blank">订单管理</a></el-menu-item>
	</el-menu> -->
	<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="collapsed?imgshow:imgsq" @click="doToggle()">
		</el-button>
		<el-submenu index="2" class="submenu">
			<template slot="title">超级管理员</template>
			<el-menu-item index="2-1">设置</el-menu-item>
			<el-menu-item index="2-2">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 {
		data(){
		  return{
		    collapsed:false,
        imgshow:require('../assets/img/show.png'),
        imgsq:require('../assets/img/sq.png'),
		  };
		},
    methods:{
      exit(){//退出登录
        this.$router.push({
          path:'/Login'
        });
      },
      doToggle(){
        this.collapsed = !this.collapsed;
        this.$root.Bus.$emit("collapsed-side",this.collapsed);
      }
    }
	}
</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>
  • index.js中配置vue
import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '@/components/HelloWorld'
import Login from '@/views/Login'
import Reg from '@/views/Reg'
import AppMain from '@/components/AppMain'

Vue.use(Router)

export default new Router({
  routes: [
    {
      path: '/',
      name: 'Login',
      component: Login
    },
		{
			path: '/Login',
			name: 'Login',
			component: Login
		},
		{
			path: '/Reg',
			name: 'Reg',
			component: Reg
		},
		 {
    path: '/AppMain',
    name: 'AppMain',
    component: AppMain
  }
		
  ]
})
  • main.js配置导入文件
// 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 'element-ui/lib/theme-chalk/index.css' 
process.env.MOCK && require('@/mock')
import App from './App'
import router from './router'
import ElementUI from 'element-ui' 
import axios from '@/api/http' 
import VueAxios from 'vue-axios'


Vue.use(ElementUI) //配置elementui
Vue.use(VueAxios,axios) //导入axios
Vue.config.productionTip = false

/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  components: { App },
  template: ''
})
  • 实现效果
    SPA项目开发之首页导航+左侧菜单_第1张图片

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