ElementUI之首页导航+左侧菜单

一、Mock.js

1.1.什么是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：

• 老大，接口文档还没输出，我的好多活干不下去啊！
• 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。

1.2.安装与配置

npm i mockjs -D 

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config目录中的dev.env.js和prod.env.js做一个配置，如下：

• dev.env.js

 module.exports = merge(prodEnv, {
  NODE_ENV: '"development"',
	MOCK: 'true'
})

• prod.env.js

 module.exports = {
  NODE_ENV: '"production"',
	MOCK: 'false'
}

• main.js

 //开发环境下才会引入mockjs
process.env.MOCK && require('@/mock') 

1.3使用

创建mock目录,mock下创建index.js以及json文件夹,在JSON文件夹中创建login-mock.js

• index.js 将mock与url绑定

import Mock from 'mockjs' //引入mockjs，npm已安装
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400ms请求到数据
	timeout: 200 - 400 //延时200-400ms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)

• login-lock.js code随机0或-1，msg随机3-10个’msg’

//使用mockjs的模板生成随机数据
const loginInfo = {
	'code|-1-0': 0,
	'message|3-10': 'msg'
}
export default loginInfo;

• 修改Login.vue中的doSubmit()的内容

doSubmit: function () {
    let params = {
        username: this.username,
        password: this.password
    };
    console.log(params);
    let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
    this.axios.post(url, params).then(response => {
        console.log(response);
        if (response.data.code == 0) {
            this.$message({
                message: response.data.message,
                type: 'success'
            })
        } else {
            this.$message({
                message: response.data.message,
                type: 'error'
            })
        }
    }).catch(error => {
        console.log(error);
    });
}

二、登录注册跳转

使用this.$router.push({})

2.1.在views中添加Register.vue

<template>
  <div class="login-wrap">
    <el-form class="login-container">
      <h1 class="title">用户注册h1>
      <el-form-item label="">
        <el-input type="text" v-model="username" placeholder="登录账号" autocomplete="off">el-input>
      el-form-item>
      <el-form-item label="">
        <el-input type="password" v-model="password" placeholder="登录密码" autocomplete="off">el-input>
      el-form-item>
      <el-form-item>
        <el-button type="primary" style="width:100%;" @click="doSubmit()">提交el-button>
      el-form-item>
      <el-row style="text-align: center;margin-top:-10px">
        <el-link type="primary">忘记密码el-link>
        <el-link type="primary" @click="gotoLogin()">用户登录el-link>
      el-row>
    el-form>
  div>
template>

<script>

export default {
  name: 'Login',
  data: function () {
    return {
      username: "admin",
      password: "123"
    }
  },
  methods: {
    doSubmit: function () {

    },
    gotoLogin(){
      this.$router.push({path: '/'})
    }
  }
}
script>

<style scoped>
.login-wrap {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  padding-top: 10%;
  /* background-color: #112346; */
  background-repeat: no-repeat;
  background-position: center right;
  background-size: 100%;
}

.login-container {
  border-radius: 10px;
  margin: 0px auto;
  width: 350px;
  padding: 30px 35px 15px 35px;
  background: #fff;
  border: 1px solid #eaeaea;
  text-align: left;
  box-shadow: 0 0 20px 2px rgba(0, 0, 0, 0.1);
}

.title {
  margin: 0px auto 40px auto;
  text-align: center;
  color: #505458;
}
style>

2.2.在Login.vue中的methods中添加gotoRegister方法

gotoRegister(){
    this.$router.push({path: '/register'})
}

2.3.在router/index.js中注册路由

import Register from '@/views/Register'

//以下内容添加到routes中
{
	path: '/register',
	name: 'Register',
	component: Register
}

三、组件通信（总线）

3.1 在main.js中添加内容

//在new Vue中添加
data(){
  return{
      Bus: new Vue({})
  }
}

3.2.在components中添加内容

• 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">Mainel-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 {
	
  components: {LeftNav, TopNav},
  data() {
    return {
      asideClass: 'main-aside'
    }
  },
  created() {
    this.$root.Bus.$on('doCollapsed', v => {
      //v指的是topNav传递过来的this.collapsed
      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;
  transition: width 0.6s ease;
}

.main-aside {
  width: 240px !important;
  height: 100%;
  background-color: #334157;
  margin: 0px;
  transition: width 0.6s ease;
}

.main-header,.main-center {
  padding: 0px;
  border-left: 2px solid #333;
}
style>

• TopNav.vue

<template>
  
  <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: {
    doToggle() {
      this.collapsed = !this.collapsed;
      this.$root.Bus.$emit('doCollapsed', this.collapsed);
    },
    exit(){
      this.$router.push({path:'/'})
    }
  }
}
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>

• LeftNav.vue

<template>
  <el-menu default-active="2" class="el-menu-vertical-demo" background-color="#334157"
           text-color="#fff" active-text-color="#ffd04b" :collapse="collapsed">
    
    <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1el-menu-item>
        <el-menu-item index="1-2">选项2el-menu-item>
      el-menu-item-group>
      <el-menu-item-group title="分组2">
        <el-menu-item index="1-3">选项3el-menu-item>
      el-menu-item-group>
      <el-submenu index="1-4">
        <template slot="title">选项4template>
        <el-menu-item index="1-4-1">选项1el-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('doCollapsed', v => {
        //v指的是topNav传递过来的this.collapsed
      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>

3.3.在router/index.js中配置路由

{
		path: '/appMain',
		name: 'AppMain',
		component: AppMain,
		children: [{
				path: '/TopNav',
				name: 'TopNav',
				component: TopNav
			},{
				path: '/leftNav',
				name: 'LeftNav',
				component: LeftNav
	        }
		]
	}

4.登出

• 修改topNav的内容

//在methods中添加exit()方法
exit(){
	this.$router.push({path:'/login'})
}