[JavaScript知识库] Vue_08_Spa项目2开发之首页导航and左侧菜单

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[JavaScript知识库]Vue_08_Spa项目2开发之首页导航and左侧菜单

Mock.js介绍：

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

一、mock.js模拟响应ajax请求

首先要去cmd黑窗口运行：安装mockjs依赖

npm install mockjs -D

里面有：

index.js:

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)

json文件下面有login-mock.js

// const loginInfo = {
// 	code: -1,
// 	message: '密码错误'
// }

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

继做天修改的还有：

config文件夹里面的

dev.env.js: 这里添加了MOCK: 'true'

'use strict'
const merge = require('webpack-merge')
const prodEnv = require('./prod.env')

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

})

prod.env.js: 这里相反MOCK: 'false'

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

以及main.js里面的： process.env.MOCK && require('@/mock')

// 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'
process.env.MOCK && require('@/mock')
import 'element-ui/lib/theme-chalk/index.css' //?新添加?2?
import App from './App'
import router from './router'
import ElementUI from 'element-ui' //?新添加?1
import axios from '@/api/http' ?//#vue项目对axios的全局配置
// import axios from 'axios'?????
import VueAxios from 'vue-axios'

Vue.use(ElementUI) ??//?新添加?3
Vue.use(VueAxios,axios)
Vue.config.productionTip = false

/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  components: { App },
  template: '<App/>'
})

二、总线及组件通信

拷入AppMain、LeftNav、TopNav页面到components公共资源里面

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 {
		
	};
</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>

?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 {
		
	}
</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>

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 {
		
	}
</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>

配置到index里面：

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'
import LeftNav from '@/components/LeftNav'
import TopNav from '@/components/TopNav'

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,
      children: [{
          path: '/LeftNav',
          name: 'LeftNav',
          component: LeftNav
        },
        {
          path: '/TopNav',
          name: 'TopNav',
          component: TopNav
        }
      ]
    }
  ]
})

在longin.vue里面<script>写入跳转路径：this.$router.push({path:'/AppMain'});

<script>
  // import qs from 'qs'
  export default {
    name: 'Login',
    data() {
      return {
        ruleForm: {
          uname:'',
          pwd:''
        }
      };
    },
    methods: {
      toReg() {
        this.$router.push({
          path: '/Reg'
        });
      },
      submitForm() {
        /* alert("提交"); */
        // let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
        let url = 'http://localhost:8080/T216_SSH/vue/userAction_login.action';
        /* 箭头函数解决了this指针污染问题*/
        /* stringify 将里面那个对象转成字符串*/
        this.axios.post(url, this.ruleForm).then((resp) =>{
          console.log(resp);
          if (resp.data.code == 1){
            this.$message({
              message: resp.data.msg,
              type: 'success'
            });
            this.$router.push({path:'/AppMain'});
          } else {
            this.$message({
              message: resp.data.msg,
              type: 'warning'
            });
          }

        }).catch(function(error) {
          console.log(error);
        });
      }
    }
  }
</script>

?配置AppMian.vue:

<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,
      }
	};
</script>

?在TopNav.vue里面修改<script>

<script>
	export default {
		data(){
      return{
        collapsed:false,
        imgshow:require('@/assets/img/show.png'),
        imgsq:require('@/assets/img/sq.png')
      }
    }
	}
</script>

?LeftNav.vue写入：

<script>
	export default {
		data(){
      return{
        collapsed:false
      }
    }
	}
</script>

main.js:

// 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'
process.env.MOCK && require('@/mock')
import 'element-ui/lib/theme-chalk/index.css' //?新添加?2?
import App from './App'
import router from './router'
import ElementUI from 'element-ui' //?新添加?1
import axios from '@/api/http' ?//#vue项目对axios的全局配置
// import axios from 'axios'?????
import VueAxios from 'vue-axios'

Vue.use(ElementUI) ??//?新添加?3
Vue.use(VueAxios,axios)
Vue.config.productionTip = false

/* eslint-disable no-new */
new Vue({
  el: '#app',
  data(){
    return {
      Bus:new Vue({
      /*这里不用写东西  */
      })

    }
  },
  router,
  components: { App },
  template: '<App/>'
})

?TopNav.vue里<script>中写入methods方法：

<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("collapsed-aside",this.collapsed);
      },
      exit(){/*退出：返回登录页面方法 */
        this.$router.push({path:'/Login'});
      }
    }
	}
</script>

LefTNav.vue:

<script>
	export default {
		data(){
      return{
        collapsed:false
      }
    },
    created(){/* 钩子函数 :只要组件被访问了，就执行这里面*/
      this.$root.Bus.$on("collapsed-aside",(v)=>{
        this.collapsed = v;
      });
    }
	}
</script>

AppMain.vue

<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(){/* 钩子函数 :只要组件被访问了，就执行这里面*/
      this.$root.Bus.$on("collapsed-aside",(v)=>{
        this.collapsed = v ? 'main-aside-collapsed' : 'main-aside';
      });
    }

	};
</script>

三、退出功能

在TopNav.vue的<script>里面：

将

exit(){
        this.$router.push({path:'/Login'});
      }

写入：?

<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("collapsed-aside",this.collapsed);
      },
      exit(){
        this.$router.push({path:'/Login'});
      }
    }
	}
</script>