vue-cli 实战
最近,MVC、MVVM框架越发流行,当然必不可少的,我也趁着最近工作量小,学习了一个多星期的vue.js 2.0版本, 改造了一个购票项目,借此分享下学习心得,希望对一部分人有所帮助,当然,有任何不对的地方还望各路大神指出批评,谢谢啦!
vue.js是一种流行的mvvm模式的框架,其核心思想是 数据驱动 和 组件化,相比于Angular.js , vue.js提供了更加简洁,更易理解的API, 使我们能够快速上手开发。
项目地址: https://github.com/maxiangsai/vue-demo
1、vue-cli 安装(默认你已有node.js环境)
npm install vue-cli -g
2、创建一个以webpack为模板的项目(一直yes就会有单元测试,eslint代码检查等,我的是默认vue init webpack后,一直enter)--我的根目录为m86xq
vue init webpack
npm install
npm install vuex vue-resource mint-ui --save (本项目用到的依赖,vuex管理应用程序的状态;vue-resource为vue的ajax库,现在推荐使用axios;mint-ui为饿了么的移动端ui框架)
npm install sass-loader node-sass --save-dev (vue文件用到sass,需要的依赖)
3、运行项目
npm run dev
4、浏览器自动打开后可以看到vue.js的界面,则运行成功
5、目录结构(由于项目是我做好了一部分的,所以有些文件是你们没有的,后面会说到)
src/store目录下的是vuex的文件;
src/sass目录为各个组件的sass样式以及定义的变量,mixins等
router目录为项目路由设置
static/fonts为移动端的字体图标
static/css为页面初始化css(reset.css),我这是通过index.html直接写在head里
data.json是自定义的假数据
6、main.js
import Vue from 'vue' import App from './App' import VueResource from 'vue-resource' import router from './router' import store from './store' import MintUi from 'mint-ui' import 'mint-ui/lib/style.css' import '../static/css/font-awesome.min.css' Vue.use(MintUi) Vue.use(VueResource) /* eslint-disable no-new */ new Vue({ router, store, render: h => h(App) }).$mount('#app')
a、import为es6的语法,将模块导入进来,在main.js导入的,在全局都能使用
b、外部的一些库,例如mint-ui, vue-resource导入进来后,都需要通过Vue.use()使用
c、创建一个vue实例,挂载路由,数据启动(还不能运行,还要App.vue)
7、router/index.js
import Vue from 'vue' import Router from 'vue-router' Vue.use(Router) import Index from 'components/index' import Home from 'components/home' import Order from 'components/order' export default new Router({ routes: [ { path: '/index', component: Index, children: [ { path: '', component: Home, meta: { hideHeader: true } }, { path: 'order', component: Order, meta: { hideHeader: false } } ] }, { path: '/', redirect: '/index' } ] })
8、App.vue
<template> <div id="app"> <v-menu></v-menu> <router-view></router-view> </div> </template> <script> import menu from 'components/menu' export default { components: { vMenu: menu } } </script> <style lang="scss"> .menu { transition: all 0.2s cubic-bezier(0.55, 0, 0.1, 1); } .slide-left-enter, .slide-right-leave-active { opacity: 0; -webkit-transform: translate(30px, 0); transform: translate(30px, 0); } .slide-left-leave-active, .slide-right-enter { opacity: 0; -webkit-transform: translate(-30px, 0); transform: translate(-30px, 0); } </style>
9、index.vue(作为滑动外层)
<template> <transition :name="transitionName"> <router-view class="view"></router-view> </transition> </template> <script> export default { name: 'index', data () { return { transitionName: 'slide-left' } }, watch: { '$route': function (to, from) { const toDepth = to.path.split('/').length const fromDepth = from.path.split('/').length this.transitionName = toDepth < fromDepth ? 'slide-right' : 'slide-left' } } } </script> <style lang="scss" scoped> .view{ transition: all .2s ease; } </style>
10、home.vue
<template> <div class="home"> <mt-header> <router-link to="/" slot="left" class="logo"></router-link> </mt-header> <!-- icon --> <ul class="service_layer"> <li v-for="(item, index) in service_a" :class="item.cln"> <a :href='item.link' @click="showIndex(index)"> <div class="icon"><img :src="item.imgUrl"></div> <p class="service_txt">{{ item.name }}</p> </a> </li> </ul> <!-- 广告 --> <div class="adv_layer" :class="{ 'hide': !advStatus }"> <span class="fa fa-close" @click="advClose"></span> <a class="adv_inner" href="http://mall.866xq.com/g_43"> <img src="http://img.mall.8666.com/wxshop20170213/5ac796e10c.jpg"> <p class="adv_title"> <span class="text">情人节尊享——买女士养颜谷花香送58元999大罐甘肃特级玫瑰 <small>(小区特供)</small> </span> <span class="adv_btn">马上抢购</span> </p> </a> </div> <div class="bar-title">中海誉城</div> <div class="residents_layer"> <span class="residents_tit"><i></i>小区已入住 6398 人</span> <span class="share_btn">马上邀请邻居入住</span> </div> <!-- 选择时间与方向 --> <div class="line-type"> <span>时间</span> <mt-button type="primary" size="small" :plain="lineDateType != 'workDay'" @click.native="lineDateTypeHandle('workDay')">工作日</mt-button> <mt-button type="primary" size="small" :plain="lineDateType != 'weekend'" @click.native="lineDateTypeHandle('weekend')">周末</mt-button> </div> <div class="line-type"> <span>方向</span> <mt-button type="primary" size="small" :plain="lineDirection !='go'" @click.native="lineDirectionHandle('go')">出门</mt-button> <mt-button type="primary" size="small" :plain="lineDirection !='back'" @click.native="lineDirectionHandle('back')">回家</mt-button> </div> <ul class="route-list"> <li v-for="item in routeList"> <div class="title">{{ item.title }}</div> <div class="content" v-for="con in item.items"> <div class="route-name">{{ con.name }}</div> <div class="route"> <span class="beginPoint">{{ con.beginPoint }}</span> → <span class="endPoint">{{con.endPoint}}</span> </div> <div class="select-time"> <mt-button type="primary" size="small" plain v-for="itemTime in con.time" @click.native="orderTo(con.name, itemTime)" > {{ itemTime }} </mt-button> </div> <div class="price"><span>¥</span>{{ con.price }}</div> </div> </li> </ul> <footer> <p>©2016 xq.xxxx.com</p> <p>我司诚征PHP程序员,详情联系hr@xxxxx.com.cn</p> </footer> </div> </template> <script> import { mapGetters } from 'vuex' export default { name: 'Home', data () { return { service_a: [ { cln: 'serviceLi1', link: '/#/index', name: '88巴士', imgUrl: 'http://css.xxxx.com/xq/images/bus_w.png' }, { cln: 'serviceLi2', link: '/#/my/ticket', name: '我的车票', imgUrl: 'http://css.xxxx.com/xq/images/wodechepiao_w.png' }, { cln: 'serviceLi3', link: '/#/my', name: '我', imgUrl: 'http://css.xxxx.com/xq/images/usericon_w.png' } ], routeList: [] } }, computed: { ...mapGetters(['advStatus', 'lineDateType', 'lineDirection']) }, created () { this.$http.get('../../static/data.json', {foo: 'bar'}).then(response => { response = response.body this.routeList = response.routeList }) }, methods: { advClose () { this.$store.dispatch('advClose') }, lineDateTypeHandle (value) { this.$store.dispatch('lineDateTypeSwitch', value) }, lineDirectionHandle (value) { this.$store.dispatch('lineDirectionSwitch', value) }, orderTo (id, time) { console.log('id: ' + id + 'time:' + time) console.log(this.$store.state.order.lineDateType + ' ' + this.$store.state.order.lineDirection) this.$router.push({ path: '/index/order' }) } } } </script> <style lang='scss' scoped> @import '../sass/home'; </style>
11、menu.vue
<template> <transition :name="transitionName"> <div class="menu" v-if="isMenu"> <div class="inner"> <a href="" class="avatar"> <img :src="user.image"> <div class="name">{{ user.name }}</div> </a> <mt-cell title="886巴士" to="/index" is-link v-if="nowRoute!='/index'"><i slot="icon" class='fa fa-home'></i></mt-cell> <mt-cell title="我的车票" to="/my/ticket" is-link><i slot="icon" class='fa fa-ticket'></i></mt-cell> <mt-cell title="我的优惠券" to="/my/coupons" is-link><i slot="icon" class='fa fa-gift'></i></mt-cell> <mt-cell title="个人中心" to="/my" is-link v-if="nowRoute!='/my'"><i slot="icon" class='fa fa-gear'></i></mt-cell> <mt-cell title="所有小区" to="/" is-link><i slot="icon" class='fa fa-map-signs'></i></mt-cell> </div> <div class="spaceMask" @click="menuToggle"></div> </div> </transition> </template> <script> export default { data () { return { isMenu: true, transitionName: '', user: { name: '曾小闲', image: 'http://wx.qlogo.cn/mmopen/C1SzxNakKfYbL3cb4FOlXWv4WZwd3jc7sevqQx4Ku89ibxmGfVGd9ophyu6dhG6jtPzWvj9VDTHP7YxjaToJ8dscB9icx026X8/0', phone: '135******80', credit: 50 }, nowRoute: this.$route.path } }, methods: { menuToggle () { this.isMenu = !this.isMenu this.transitionName = this.isMenu ? 'slide-left' : 'slide-right' } } } </script> <style lang="scss" scoped> @import '../sass/menu' </style>
12、order.vue
<template> <div class="order-wrap"> <mt-header fixed title="购票"> <router-link to="/" slot="left"> <mt-button icon="back">返回</mt-button> </router-link> </mt-header> <div class="overflow-scroll"> <div class="lineInfo-box"> <div class="carIndicator">上车点<br>指示图</div> <!-- 单个起点/终点info块 --> <div class="info-con"> <div class="title start">起点:岭南雅筑/中海誉城</div> <ul class="routeDetail"> <li><span class="time">07:00</span><span class="routeInfo">[岭南雅筑]正门路边</span></li> <li><span class="time"></span><span class="routeInfo">请在途经点到达时间前候车,仅供参考.)</span></li> <li><span class="time">07:03</span><span class="routeInfo">[金色梦想]中海公寓公交站(靠中海别墅那边)</span></li> <li><span class="time">07:05</span><span class="routeInfo">[中海誉城]洋城一路公交站(南苑扶梯大门对面)</span></li> </ul> </div> <!-- 单个起点/终点info块 --> <div class="info-con"> <div class="title end">终点:岭南雅筑/中海誉城</div> <ul class="routeDetail"> <li><span class="time">07:00</span><span class="routeInfo">[岭南雅筑]正门路边</span></li> <li><span class="time"></span><span class="routeInfo">请在途经点到达时间前候车,仅供参考.)</span></li> <li><span class="time">07:03</span><span class="routeInfo">[金色梦想]中海公寓公交站(靠中海别墅那边)</span></li> <li><span class="time">07:05</span><span class="routeInfo">[中海誉城]洋城一路公交站(南苑扶梯大门对面)</span></li> </ul> </div> <ul class="carRules" v-for="item in rules"> <li>{{item}}</li> </ul> <div class="ticket_price"> <span class="price">¥14.00</span><span class="unit">/座</span> </div> </div> <div class="warning lineInfo-box"> <p>如有更多疑问请联系<i class="fa fa-phone"></i><a href="tel:137-1936-7437">137-1936-7437</a></p> <p>(班车正常情况准点从发车点发车,不接受申请让班车等待乘客,请提前候车。)</p> </div> </div> <footer> <div class="rule-confirm"> <label class="checkbox"> <input type="checkbox" v-model="agreement"> <i></i> 我已阅读 </label> <a class="a_lnk" href="#/index/gtxz">购票退票规则</a> </div> <mt-button type="primary" size="large" :disabled="buttonDisabled" @click.native="orderPop">购票 ¥14.00/座</mt-button> </footer> </div> </template> <script> import { Indicator } from 'mint-ui' export default { data () { return { agreement: true, popupLoading: false, rules: [ '* 占座即需要购票,不设站票,儿童购票票价不变;', '* 车型、车牌号请购票后到【我的车票】页面查看;', '* 请提前5分钟候车,认准车牌号上车,并对号入座;', '* 发车前20分钟不可退票,如因个人原因误车恕不退票;', '* 如需更改班次请尽早退票或者改签,把座位释放给其他乘客购买;', '* 严抓逃票,非上车前购票请统一到首页底部补票窗口补票。' ] } }, computed: { buttonDisabled: function () { return !this.agreement || this.popupLoading } }, methods: { orderPop () { Indicator.open({ spinnerType: 'fading-circle' }) } } } </script> <style lang="scss" scoped> @import '../sass/order'; </style>
13、vuex的使用
目录结构:
index.js为集中所有状态导出去,其中state为数据源,getters为过滤数据源(相当于vue里边的computed),mutations为定义的方法,actions为提交mutations的方法(即调用mutations里的函数)
import Vue from 'vue' import Vuex from 'vuex' import getters from './getters' import mutations from './mutations' import actions from './actions' import adv from './modules/adv' import order from './modules/order' Vue.use(Vuex) export default new Vuex.Store({ modules: { adv, order }, getters, mutations, actions })
mutation-types.js为定义的方法名
export const ADV_CLOSE = 'ADV_CLOSE' // 关闭广告 export const LINE_DATE_TYPE = 'LINE_DATE_TYPE' // 路线时间 export const LINE_DIRECTION = 'LINE_DIRECTION' // 路线方向
modules/adv.js为广告相关代码
import * as types from '../mutation-types' const state = { adv: { data: '', status: true } } const getters = { advStatus: state => state.adv.status } const mutations = { [types.ADV_CLOSE] (state) { state.adv.status = false } } const actions = { advClose ({commit}) { commit(types.ADV_CLOSE) } } export default { state, getters, mutations, actions }
modules/order.js为选择车票的相关操作
import * as types from '../mutation-types' const state = { lineDateType: 'workDay', lineDirection: 'go' //go表示去 back表示回程 } const getters = { lineDateType: state => state.lineDateType, lineDirection: state => state.lineDirection } const mutations = { [types.LINE_DATE_TYPE] (state, value) { state.lineDateType = value === 'workDay' ? 'workDay' : 'weekend' }, [types.LINE_DIRECTION] (state, value) { state.lineDirection = value === 'go' ? 'go' : 'back' } } const actions = { lineDateTypeSwitch ({ commit }, value) { commit(types.LINE_DATE_TYPE, value) }, lineDirectionSwitch ({ commit }, value) { commit(types.LINE_DIRECTION, value) } } export default { state, getters, mutations, actions }
总结:
1、主要难点在于vuex状态管理,对于首次运用mvvm的我来说,这是比较难理解的。现在看看其实很简单,就是把一些全局需要用到的,有影响的数据提取到vuex里边集中管理,这样当在a处修改数据时,b处能及时响应更新
2、由于vue.js是组件化,数据驱动思想,所以在任何时候,需要修改页面内容或者结构时,首先想到的应该是通过操作数据从而达到结构变化的目的。多处用到的可以提取出来作为组件复用
3、由于这边用到了vue-cli + webpack,所以在写scss时,浏览器兼容问题构建工具来处理