8、Vue 核心技术与实战智慧商城项目 DAY8~10

1、项目演示

2、项目收获

3、创建项目

4、调整初始化目录

1、删掉（1）assets中的文件（2）components中的文件（3）views中的文件
2、(1)修改路由配置，默认的路由是个空数组即可，把路由规则都删掉

import Vue from 'vue'
import VueRouter from 'vue-router'Vue.use(VueRouter)const router = new VueRouter({routes: []
})export default router

(2)修改App.vue，直留路由出口即可

<template><div id="app"><router-view/></div>
</template><style lang="less"></style>

5、vant 组件库

目标：认识第三方 Vue组件库 vant-ui
组件库：第三方封装好了很多很多的组件，整合到一起就是一个组件库。
https://vant-contrib.gitee.io/vant/v2/#/zh-CN/

6、其他 Vue 组件库

目标：了解其他 Vue 组件库
Vue的组件库并不是唯一的，vant-ui 也仅仅只是组件库的一种。
一般会按照不同平台进行分类：
① PC端：支持vue2:element-ui 支持vue3:(element-plus) 支持vue2\3:ant-design-vue
② 移动端：vant-ui、 Mint UI (饿了么)、 Cube UI (滴滴)

7、vant 全部导入和按需导入

目标：明确全部导入和按需导入的区别

7.1 全部导入：

7.2 按需导入：

单独提取到utils - vant-ui.js导入

// 按需导入
import Vue from 'vue'
import { Button, Switch } from 'vant'
Vue.use(Button)
Vue.use(Switch)

main.js

import '@/utils/vant-ui'

8、项目中的 vw 适配

目标：基于 postcss 插件实现项目 vw 适配
官方配置
① 安装插件

yarn add postcss-px-to-viewport@1.1.1 -D

② 根目录新建 postcss.config.js 文件，填入配置

module.exports = {plugins: {'postcss-px-to-viewport': {// vw适配的标准屏的宽度 iponeX//   设计图 750，调成1倍图 => 适配375标准屏幕//   设计图 640，调成1倍图 => 适配320标准屏幕viewportWidth: 375}}
}

9、路由设计配置 - 一级路由

目标：分析项目页面，设计路由，配置一级路由
但凡是单个页面，独立展示的，都是一级路由

`router - index.js```

import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '@/views/login'
import Layout from '@/views/layout'
import Search from '@/views/search'
import SearchList from '@/views/search/list'
import ProDetail from '@/views/prodetail'
import Pay from '@/views/pay'
import MyOrder from '@/views/myorder'Vue.use(VueRouter)const router = new VueRouter({routes: [{ path: '/login', component: Login },{ path: '/', component: Layout },{ path: '/search', component: Search },{ path: '/searchlist', component: SearchList },// 动态路由传参，确定将来哪个是商品，路由参数中携带id{ path: '/prodetail/:id', component: ProDetail },{ path: '/pay', component: Pay },{ path: '/myorder', component: MyOrder }]
})export default router

10、路由设计配置 - 二级路由

10.1 目标：阅读vant组件库文档，实现底部导航 tabbar

tabbar标签页：
① vant-ui.js 按需引入

import { Tabbar, TabbarItem } from 'vant'
Vue.use(Tabbar)
Vue.use(TabbarItem)

② layout.vue 粘贴官方代码测试

<van-tabbar>
<van-tabbar-item icon="home-o">标签</van-tabbar-item>
<van-tabbar-item icon="search">标签</van-tabbar-item>
<van-tabbar-item icon="friends-o">标签</van-tabbar-item>
<van-tabbar-item icon="setting-o">标签</van-tabbar-item>
</van-tabbar>

③ 修改文字、图标、颜色

<van-tabbar active-color="#ee0a24" inactive-color="#000">
<van-tabbar-item icon="wap-home-o">首页</...>
<van-tabbar-item icon="apps-o">分类页</...>
<van-tabbar-item icon="shopping-cart-o">购物车</...>
<van-tabbar-item icon="user-o">我的</...>
</van-tabbar>

10.2 目标：基于底部导航，完成二级路由配置

router - index,js配规则组件

import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '@/views/login'
import Layout from '@/views/layout'
import Search from '@/views/search'
import SearchList from '@/views/search/list'
import ProDetail from '@/views/prodetail'
import Pay from '@/views/pay'
import MyOrder from '@/views/myorder'
import Home from '@/views/layout/home'
import Category from '@/views/layout/category'
import Cart from '@/views/layout/cart'
import User from '@/views/layout/user'Vue.use(VueRouter)const router = new VueRouter({routes: [{ path: '/login', component: Login },{path: '/',component: Layout,children: [{ path: '/home', component: Home },{ path: '/category', component: Category },{ path: '/cart', component: Cart },{ path: '/user', component: User }]},{ path: '/search', component: Search },{ path: '/searchlist', component: SearchList },// 动态路由传参，确定将来哪个是商品，路由参数中携带id{ path: '/prodetail/:id', component: ProDetail },{ path: '/pay', component: Pay },{ path: '/myorder', component: MyOrder }]
})export default router

11、登录页静态布局

目标：基于笔记，快速实现登录页静态布局

准备工作
(1) 新建 styles/common.less 重置默认样式
(2) main.js 导入 common.less
(3) 图片素材拷贝到 assets 目录【备用】
登录页静态布局编写
(1) 头部组件说明 (NavBar)
(2) 通用样式覆盖
(3) 其他静态结构编写

(1) 准备工作

新建 styles/common.less 重置默认样式

// 重置默认样式
* {margin: 0;padding: 0;box-sizing: border-box;
}// 文字溢出省略号
.text-ellipsis-2 {overflow: hidden;-webkit-line-clamp: 2;text-overflow: ellipsis;display: -webkit-box;-webkit-box-orient: vertical;
}

main.js 中导入应用

import '@/styles/common.less'

将准备好的一些图片素材拷贝到 assets 目录【备用】

(2) 登录静态布局

使用组件

van-nav-bar

vant-ui.js 注册

import { NavBar } from 'vant'
Vue.use(NavBar)

Login.vue 使用

<template><div class="login"><van-nav-bar title="会员登录" left-arrow @click-left="$router.go(-1)" /><div class="container"><div class="title"><h3>手机号登录</h3><p>未注册的手机号登录后将自动注册</p></div><div class="form"><div class="form-item"><input class="inp" maxlength="11" placeholder="请输入手机号码" type="text"></div><div class="form-item"><input class="inp" maxlength="5" placeholder="请输入图形验证码" type="text"><img src="@/assets/code.png" alt=""></div><div class="form-item"><input class="inp" placeholder="请输入短信验证码" type="text"><button>获取验证码</button></div></div><div class="login-btn">登录</div></div></div>
</template><script>
export default {name: 'LoginPage'
}
</script><style lang="less" scoped>
.container {padding: 49px 29px;.title {margin-bottom: 20px;h3 {font-size: 26px;font-weight: normal;}p {line-height: 40px;font-size: 14px;color: #b8b8b8;}}.form-item {border-bottom: 1px solid #f3f1f2;padding: 8px;margin-bottom: 14px;display: flex;align-items: center;.inp {display: block;border: none;outline: none;height: 32px;font-size: 14px;flex: 1;}img {width: 94px;height: 31px;}button {height: 31px;border: none;font-size: 13px;color: #cea26a;background-color: transparent;padding-right: 9px;}}.login-btn {width: 100%;height: 42px;margin-top: 39px;background: linear-gradient(90deg,#ecb53c,#ff9211);color: #fff;border-radius: 39px;box-shadow: 0 10px 20px 0 rgba(0,0,0,.1);letter-spacing: 2px;display: flex;justify-content: center;align-items: center;}
}
</style>

添加通用样式

styles/common.less 设置导航条，返回箭头颜色

// 设置导航条 返回箭头 颜色
.van-nav-bar {.van-icon-arrow-left {color: #333;}
}

12、request模块 - axios 封装

目标：将 axios 请求方法，封装到 request 模块

使用 axios 来请求后端接口, 一般都会对 axios 进行 一些配置 (比如: 配置基础地址，请求响应拦截器等)

所以项目开发中, 都会对 axios 进行基本的二次封装, 单独封装到一个 request 模块中, 便于维护使用

接口文档地址：
https://apifox.com/apidoc/shared-12ab6b18-adc2-444c-ad11-0e60f5693f66/doc-2221080
基地址：
http://cba.itlike.com/public/index.php?s=/api/

安装 axios

npm i axios

新建 utils/request.js 封装 axios 模块

利用 axios.create 创建一个自定义的 axios 来使用

http://www.axios-js.com/zh-cn/docs/#axios-create-config

/* 封装axios用于发送请求 */
import axios from 'axios'// 创建一个新的axios实例
const request = axios.create({baseURL: 'http://cba.itlike.com/public/index.php?s=/api/',timeout: 5000
})// 添加请求拦截器
request.interceptors.request.use(function (config) {// 在发送请求之前做些什么return config
}, function (error) {// 对请求错误做些什么return Promise.reject(error)
})// 添加响应拦截器
request.interceptors.response.use(function (response) {// 对响应数据做点什么return response.data
}, function (error) {// 对响应错误做点什么return Promise.reject(error)
})export default request

获取图形验证码，请求测试

import request from '@/utils/request'
export default {name: 'LoginPage',async created () {const res = await request.get('/captcha/image')console.log(res)}
}

13、图形验证码功能完成

遇到的问题：res.data.xxx undefined
（1）关于axios返回结果
前端想引用返回数值里的某一项结果，但是却一直显示引用的结果是undefined
(2)问题分析
在浏览器进行断点调试后知道，之所以访问不到数据，是因为axios返回的时候对返回结果多封装了一层data。而我返回的数据里面也有一个data对象，导致我在点data的时候访问的是其外层封装的data，而不是里面具体的我想要的那层data数据。
(3)处理方法
我们只需要访问data里面的data数据就行啦！

准备数据，获取图形验证码后存储图片路径，存储图片唯一标识

<script>
import request from '@/utils/request'
export default {name: 'LoginPage',data () {return {picCode: '', // 用户输入的图形验证码picKey: '', // 将来请求传递的图形验证码唯一标识picUrl: '' // 存储请求渲染的图片地址}},async created () {this.getPicCode()},methods: {// 获取图形验证码async getPicCode () {// const res = await request.get('/captcha/image')// console.log(res.data)// console.log(res.data.data.base64)const { data: { data: { base64, key } } } = await request.get('/captcha/image')// console.log(base64, key)this.picUrl = base64 // 存储地址this.picKey = key // 存储唯一标识}}
}
</script>

动态渲染图形验证码，并且点击时要重新刷新验证码

<div class="form-item"><input v-model="picCode" class="inp" maxlength="5" placeholder="请输入图形验证码" type="text"><img v-if="picUrl" :src="picUrl" @click="getPicCode" alt=""></div>

14、api 接口模块 -封装图片验证码接口

新建 api/login.js 提供获取图形验证码 Api 函数

import request from '@/utils/request'// 获取图形验证码
export const getPicCode = () => {return request.get('/captcha/image')
}

login/index.vue页面中调用测试

async getPicCode () {const { data: { base64, key } } = await getPicCode()this.picUrl = base64this.picKey = key
},

15、Toast 轻提示

两种使用方式

导入调用 ( 组件内 或 非组件中均可 )

import { Toast } from 'vant';
Toast('提示内容');

通过this直接调用 ( **组件内 **)

main.js 注册绑定到原型

import { Toast } from 'vant';
Vue.use(Toast)

this.$toast('提示内容')

16、短信验证倒计时

(1) 倒计时基础效果

准备 data 数据

data () {return {totalSecond: 60, // 总秒数second: 60, // 倒计时的秒数timer: null // 定时器 id}
},

给按钮注册点击事件

<button @click="getCode">{{ second === totalSecond ? '获取验证码' : second + `秒后重新发送`}}
</button>

开启倒计时时

async getCode () {if (!this.timer && this.second === this.totalSecond) {// 开启倒计时this.timer = setInterval(() => {this.second--if (this.second < 1) {clearInterval(this.timer)this.timer = nullthis.second = this.totalSecond}}, 1000)// 发送请求，获取验证码this.$toast('发送成功，请注意查收')}
}

离开页面销毁定时器

destroyed () {clearInterval(this.timer)
}

(2) 验证码请求校验处理

输入框 v-model 绑定变量

data () {return {mobile: '', // 手机号picCode: '' // 图形验证码}
},<input v-model="mobile" class="inp" maxlength="11" placeholder="请输入手机号码" type="text">
<input v-model="picCode" class="inp" maxlength="5" placeholder="请输入图形验证码" type="text">

methods中封装校验方法

// 校验输入框内容
validFn () {if (!/^1[3-9]\d{9}$/.test(this.mobile)) {this.$toast('请输入正确的手机号')return false}if (!/^\w{4}$/.test(this.picCode)) {this.$toast('请输入正确的图形验证码')return false}return true
},

请求倒计时前进行校验

// 获取短信验证码
async getCode () {if (!this.validFn()) {return}...
}

(3) 封装接口，请求获取验证码

封装接口 api/login.js

// 获取短信验证码
export const getMsgCode = (captchaCode, captchaKey, mobile) => {return request.post('/captcha/sendSmsCaptcha', {form: {captchaCode,captchaKey,mobile}})
}

调用接口，添加提示

// 获取短信验证码
async getCode () {if (!this.validFn()) {return}if (!this.timer && this.second === this.totalSecond) {// 发送请求，获取验证码await getMsgCode(this.picCode, this.picKey, this.mobile)this.$toast('发送成功，请注意查收')// 开启倒计时...}
}

17、登录功能

目标：封装api登录接口，实现登录功能
步骤分析：

阅读接口文档，封装登录接口
登录前的校验 (手机号，图形验证码，短信验证码)
调用方法，发送请求，成功添加提示并跳转

api/login.js 提供登录 Api 函数

// 验证码登录
export const codeLogin = (mobile, smsCode) => {return request.post('/passport/login', {form: {isParty: false,mobile,partyData: {},smsCode}})
}

login/index.vue 登录功能

<input class="inp" v-model="msgCode" maxlength="6" placeholder="请输入短信验证码" type="text">
<div class="login-btn" @click="login">登录</div>data () {return {msgCode: '',}
},
methods: {async login () {if (!this.validFn()) {return}if (!/^\d{6}$/.test(this.msgCode)) {this.$toast('请输入正确的手机验证码')return}await codeLogin(this.mobile, this.msgCode)this.$router.push('/')this.$toast('登录成功')}
}

18、响应拦截器统一处理错误提示

目标：通过响应拦截器，统一处理接口的错误提示

问题：每次请求，都会有可能会错误，就都需要错误提示

说明：响应拦截器是咱们拿到数据的第一个数据流转站，可以在里面统一处理错误。

只要不是 200, 就给默认提示，抛出错误

响应拦截器是咱们拿到数据的 第一个 “数据流转站”，可以在里面统一处理错误，只要不是 200 默认给提示，抛出错误
utils/request.js

import { Toast } from 'vant'...// 添加响应拦截器
request.interceptors.response.use(function (response) {const res = response.dataif (res.status !== 200) {Toast(res.message)return Promise.reject(res.message)}// 对响应数据做点什么return res
}, function (error) {// 对响应错误做点什么return Promise.reject(error)
})

此时res = res.data
所以之前res.data.xxx undefined就不会undefined了，我们需要少包含一层data

19、登录权证信息存储

新建 vuex user 模块 store/modules/user.js

export default {namespaced: true,state () {return {userInfo: {token: '',userId: ''},}},mutations: {},actions: {}
}

挂载到 vuex 上

import Vue from 'vue'
import Vuex from 'vuex'
import user from './modules/user'Vue.use(Vuex)export default new Vuex.Store({modules: {user,}
})

提供 mutations

mutations: {setUserInfo (state, obj) {state.userInfo = obj},
},

页面中 commit 调用

// 登录按钮（校验 & 提交）
async login () {if (!this.validFn()) {return}...const res = await codeLogin(this.mobile, this.msgCode)this.$store.commit('user/setUserInfo', res.data)this.$router.push('/')this.$toast('登录成功')
}

20、storage存储模块 - vuex 持久化处理

新建 utils/storage.js 封装方法

const INFO_KEY = 'hm_shopping_info'// 获取个人信息
export const getInfo = () => {const result = localStorage.getItem(INFO_KEY)return result ? JSON.parse(result) : {token: '',userId: ''}
}// 设置个人信息
export const setInfo = (info) => {localStorage.setItem(INFO_KEY, JSON.stringify(info))
}// 移除个人信息
export const removeInfo = () => {localStorage.removeItem(INFO_KEY)
}

vuex user 模块持久化处理

import { getInfo, setInfo } from '@/utils/storage'
export default {namespaced: true,state () {return {userInfo: getInfo()}},mutations: {setUserInfo (state, obj) {state.userInfo = objsetInfo(obj)}},actions: {}
}

21、添加请求 loading 效果

请求时，打开 loading

// 添加请求拦截器
request.interceptors.request.use(function (config) {// 在发送请求之前做些什么Toast.loading({message: '请求中...',forbidClick: true,loadingType: 'spinner',duration: 0})return config
}, function (error) {// 对请求错误做些什么return Promise.reject(error)
})

响应时，关闭 loading

// 添加响应拦截器
request.interceptors.response.use(function (response) {const res = response.dataif (res.status !== 200) {Toast(res.message)return Promise.reject(res.message)} else {// 清除 loading 中的效果Toast.clear()}// 对响应数据做点什么return res
}, function (error) {// 对响应错误做点什么return Promise.reject(error)
})

22、页面访问拦截

所有的路由一旦被匹配到，都会先经过全局前置守卫
只有全局前置守卫放行，才会真正解析渲染组件，才能看到页面内容
访问权限页面时，拦截或放行的关键点？ → 用户是否有登录权证 token

store - index.js

import Vue from 'vue'
import Vuex from 'vuex'
import user from './modules/user'Vue.use(Vuex)export default new Vuex.Store({state: {},getters: {token (state) {return state.user.userInfo.token}},mutations: {},actions: {},modules: {user}
})

const authUrl = ['/pay', '/myorder']
router.beforeEach((to, from, next) => {const token = store.getters.tokenif (!authUrl.includes(to.path)) {next()return}if (token) {next()} else {next('/login')}
})

23、首页 - 静态结构准备 & 动态渲染

（1）静态结构准备

静态结构和样式 layout/home.vue

<template><div class="home"><!-- 导航条 --><van-nav-bar title="智慧商城" fixed /><!-- 搜索框 --><van-searchreadonlyshape="round"background="#f1f1f2"placeholder="请在此输入搜索关键词"@click="$router.push('/search')"/><!-- 轮播图 --><van-swipe class="my-swipe" :autoplay="3000" indicator-color="white"><van-swipe-item><img src="@/assets/banner1.jpg" alt=""></van-swipe-item><van-swipe-item><img src="@/assets/banner2.jpg" alt=""></van-swipe-item><van-swipe-item><img src="@/assets/banner3.jpg" alt=""></van-swipe-item></van-swipe><!-- 导航 --><van-grid column-num="5" icon-size="40"><van-grid-itemv-for="item in 10" :key="item"icon="http://cba.itlike.com/public/uploads/10001/20230320/58a7c1f62df4cb1eb47fe83ff0e566e6.png"text="新品首发"@click="$router.push('/category')"/></van-grid><!-- 主会场 --><div class="main"><img src="@/assets/main.png" alt=""></div><!-- 猜你喜欢 --><div class="guess"><p class="guess-title">—— 猜你喜欢 ——</p><div class="goods-list"><GoodsItem v-for="item in 10" :key="item"></GoodsItem></div></div></div>
</template><script>
import GoodsItem from '@/components/GoodsItem.vue'
export default {name: 'HomePage',components: {GoodsItem}
}
</script><style lang="less" scoped>
// 主题 padding
.home {padding-top: 100px;padding-bottom: 50px;
}// 导航条样式定制
.van-nav-bar {z-index: 999;background-color: #c21401;::v-deep .van-nav-bar__title {color: #fff;}
}// 搜索框样式定制
.van-search {position: fixed;width: 100%;top: 46px;z-index: 999;
}// 分类导航部分
.my-swipe .van-swipe-item {height: 185px;color: #fff;font-size: 20px;text-align: center;background-color: #39a9ed;
}
.my-swipe .van-swipe-item img {width: 100%;height: 185px;
}// 主会场
.main img {display: block;width: 100%;
}// 猜你喜欢
.guess .guess-title {height: 40px;line-height: 40px;text-align: center;
}// 商品样式
.goods-list {background-color: #f6f6f6;
}
</style>

新建components/GoodsItem.vue

<template><div class="goods-item" @click="$router.push('/prodetail')"><div class="left"><img src="@/assets/product.jpg" alt="" /></div><div class="right"><p class="tit text-ellipsis-2">三星手机 SAMSUNG Galaxy S23 8GB+256GB 超视觉夜拍系统 超清夜景 悠雾紫5G手机 游戏拍照旗舰机s23</p><p class="count">已售104件</p><p class="price"><span class="new">¥3999.00</span><span class="old">¥6699.00</span></p></div></div>
</template><script>
export default {}
</script><style lang="less" scoped>
.goods-item {height: 148px;margin-bottom: 6px;padding: 10px;background-color: #fff;display: flex;.left {width: 127px;img {display: block;width: 100%;}}.right {flex: 1;font-size: 14px;line-height: 1.3;padding: 10px;display: flex;flex-direction: column;justify-content: space-evenly;.count {color: #999;font-size: 12px;}.price {color: #999;font-size: 16px;.new {color: #f03c3c;margin-right: 10px;}.old {text-decoration: line-through;font-size: 12px;}}}
}
</style>

组件按需引入

import { Search, Swipe, SwipeItem, Grid, GridItem } from 'vant'Vue.use(GridItem)
Vue.use(Search)
Vue.use(Swipe)
Vue.use(SwipeItem)
Vue.use(Grid)

首页 - 动态渲染

封装准备接口 api/home.js

import request from '@/utils/request'// 获取首页数据
export const getHomeData = () => {return request.get('/page/detail', {params: {pageId: 0}})
}

页面中请求调用

import GoodsItem from '@/components/GoodsItem.vue'
import { getHomeData } from '@/api/home'
export default {name: 'HomePage',components: {GoodsItem},data () {return {bannerList: [],navList: [],proList: []}},async created () {const { data: { pageData } } = await getHomeData()this.bannerList = pageData.items[1].datathis.navList = pageData.items[3].datathis.proList = pageData.items[6].data}
}

轮播图、导航、猜你喜欢渲染

<!-- 轮播图 -->
<van-swipe class="my-swipe" :autoplay="3000" indicator-color="white"><van-swipe-item v-for="item in bannerList" :key="item.imgUrl"><img :src="item.imgUrl" alt=""></van-swipe-item>
</van-swipe><!-- 导航 -->
<van-grid column-num="5" icon-size="40"><van-grid-itemv-for="item in navList" :key="item.imgUrl":icon="item.imgUrl":text="item.text"@click="$router.push('/category')"/>
</van-grid><!-- 猜你喜欢 -->
<div class="guess"><p class="guess-title">—— 猜你喜欢 ——</p><div class="goods-list"><GoodsItem v-for="item in proList"  :item="item" :key="item.goods_id"></GoodsItem></div>
</div>

商品组件内，动态渲染

<template><div v-if="item.goods_name" class="goods-item" @click="$router.push(`/prodetail/${item.goods_id}`)"><div class="left"><img :src="item.goods_image" alt="" /></div><div class="right"><p class="tit text-ellipsis-2">{{ item.goods_name }}</p><p class="count">已售 {{ item.goods_sales }}件</p><p class="price"><span class="new">¥{{ item.goods_price_min }}</span><span class="old">¥{{ item.goods_price_max }}</span></p></div></div>
</template><script>
export default {props: {item: {type: Object,default: () => {return {}}}}
}
</script>

24、搜索 - 历史记录管理

（1）搜索 - 历史记录 - 基本管理

data 中提供数据，和搜索框双向绑定 (实时获取用户内容)

data () {return {search: ''}
}<van-search v-model="search" show-action placeholder="请输入搜索关键词" clearable><template #action><div>搜索</div></template>
</van-search>

准备假数据，进行基本的历史纪录渲染

data () {return {...history: ['手机', '空调', '白酒', '电视']}
},<div class="search-history" v-if="history.length > 0">...<div class="list"><div v-for="item in history" :key="item" @click="goSearch(item)" class="list-item">{{ item }}</div></div>
</div>

点击搜索，或者下面搜索历史按钮，都要进行搜索历史记录更新 (去重，新搜索的内容置顶)

<div @click="goSearch(search)">搜索</div><div class="list"><div v-for="item in history" :key="item" @click="goSearch(item)" class="list-item">{{ item }}</div>
</div>goSearch (key) {const index = this.history.indexOf(key)if (index !== -1) {this.history.splice(index, 1)}this.history.unshift(key)this.$router.push(`/searchlist?search=${key}`)
}

清空历史

<van-icon @click="clear" name="delete-o" size="16" />clear () {this.history = []
}

（2）搜索 - 历史记录 - 持久化

持久化到本地 - 封装方法

const HISTORY_KEY = 'hm_history_list'// 获取搜索历史
export const getHistoryList = () => {const result = localStorage.getItem(HISTORY_KEY)return result ? JSON.parse(result) : []
}// 设置搜索历史
export const setHistoryList = (arr) => {localStorage.setItem(HISTORY_KEY, JSON.stringify(arr))
}

页面中调用 - 实现持久化

data () {return {search: '',history: getHistoryList()}
},
methods: {goSearch (key) {...setHistoryList(this.history)this.$router.push(`/searchlist?search=${key}`)},clear () {this.history = []setHistoryList([])this.$toast.success('清空历史成功')}
}

25、搜索列表 - 静态布局 & 动态渲染

（1）搜索列表 - 静态布局

<template><div class="search"><van-nav-bar fixed title="商品列表" left-arrow @click-left="$router.go(-1)" /><van-searchreadonlyshape="round"background="#ffffff"value="手机"show-action@click="$router.push('/search')"><template #action><van-icon class="tool" name="apps-o" /></template></van-search><!-- 排序选项按钮 --><div class="sort-btns"><div class="sort-item">综合</div><div class="sort-item">销量</div><div class="sort-item">价格 </div></div><div class="goods-list"><GoodsItem v-for="item in 10" :key="item"></GoodsItem></div></div>
</template><script>
import GoodsItem from '@/components/GoodsItem.vue'
export default {name: 'SearchIndex',components: {GoodsItem}
}
</script><style lang="less" scoped>
.search {padding-top: 46px;::v-deep .van-icon-arrow-left {color: #333;}.tool {font-size: 24px;height: 40px;line-height: 40px;}.sort-btns {display: flex;height: 36px;line-height: 36px;.sort-item {text-align: center;flex: 1;font-size: 16px;}}
}// 商品样式
.goods-list {background-color: #f6f6f6;
}
</style>

（2）搜索列表 - 动态渲染

<1> 搜索关键字搜索

计算属性，基于query 解析路由参数

computed: {querySearch () {return this.$route.query.search}
}

根据不同的情况，设置输入框的值

<van-search...:value="querySearch || '搜索商品'"
></van-search>

api/product.js 封装接口，获取搜索商品

import request from '@/utils/request'// 获取搜索商品列表数据
export const getProList = (paramsObj) => {const { categoryId, goodsName, page } = paramsObjreturn request.get('/goods/list', {params: {categoryId,goodsName,page}})
}

页面中基于 goodsName 发送请求，动态渲染

data () {return {page: 1,proList: []}
},
async created () {const { data: { list } } = await getProList({goodsName: this.querySearch,page: this.page})this.proList = list.data
}<div class="goods-list"><GoodsItem v-for="item in proList" :key="item.goods_id" :item="item"></GoodsItem>
</div>

<2> 分类id搜索

1 封装接口 api/category.js

import request from '@/utils/request'// 获取分类数据
export const getCategoryData = () => {return request.get('/category/list')
}

2 分类页静态结构

<template><div class="category"><!-- 分类 --><van-nav-bar title="全部分类" fixed /><!-- 搜索框 --><van-searchreadonlyshape="round"background="#f1f1f2"placeholder="请输入搜索关键词"@click="$router.push('/search')"/><!-- 分类列表 --><div class="list-box"><div class="left"><ul><li v-for="(item, index) in list" :key="item.category_id"><a :class="{ active: index === activeIndex }" @click="activeIndex = index" href="javascript:;">{{ item.name }}</a></li></ul></div><div class="right"><div @click="$router.push(`/searchlist?categoryId=${item.category_id}`)" v-for="item in list[activeIndex]?.children" :key="item.category_id" class="cate-goods"><img :src="item.image?.external_url" alt=""><p>{{ item.name }}</p></div></div></div></div>
</template><script>
import { getCategoryData } from '@/api/category'
export default {name: 'CategoryPage',created () {this.getCategoryList()},data () {return {list: [],activeIndex: 0}},methods: {async getCategoryList () {const { data: { list } } = await getCategoryData()this.list = list}}
}
</script><style lang="less" scoped>
// 主题 padding
.category {padding-top: 100px;padding-bottom: 50px;height: 100vh;.list-box {height: 100%;display: flex;.left {width: 85px;height: 100%;background-color: #f3f3f3;overflow: auto;a {display: block;height: 45px;line-height: 45px;text-align: center;color: #444444;font-size: 12px;&.active {color: #fb442f;background-color: #fff;}}}.right {flex: 1;height: 100%;background-color: #ffffff;display: flex;flex-wrap: wrap;justify-content: flex-start;align-content: flex-start;padding: 10px 0;overflow: auto;.cate-goods {width: 33.3%;margin-bottom: 10px;img {width: 70px;height: 70px;display: block;margin: 5px auto;}p {text-align: center;font-size: 12px;}}}}
}// 导航条样式定制
.van-nav-bar {z-index: 999;
}// 搜索框样式定制
.van-search {position: fixed;width: 100%;top: 46px;z-index: 999;
}
</style>

3 搜索页，基于分类 ID 请求

async created () {const { data: { list } } = await getProList({categoryId: this.$route.query.categoryId,goodsName: this.querySearch,page: this.page})this.proList = list.data
}

26、商品详情- 静态布局 & 渲染

（1）静态结构和样式

<template><div class="prodetail"><van-nav-bar fixed title="商品详情页" left-arrow @click-left="$router.go(-1)" /><van-swipe :autoplay="3000" @change="onChange"><van-swipe-item v-for="(image, index) in images" :key="index"><img :src="image" /></van-swipe-item><template #indicator><div class="custom-indicator">{{ current + 1 }} / {{ images.length }}</div></template></van-swipe><!-- 商品说明 --><div class="info"><div class="title"><div class="price"><span class="now">￥0.01</span><span class="oldprice">￥6699.00</span></div><div class="sellcount">已售1001件</div></div><div class="msg text-ellipsis-2">三星手机 SAMSUNG Galaxy S23 8GB+256GB 超视觉夜拍系统 超清夜景 悠雾紫 5G手机 游戏拍照旗舰机s23</div><div class="service"><div class="left-words"><span><van-icon name="passed" />七天无理由退货</span><span><van-icon name="passed" />48小时发货</span></div><div class="right-icon"><van-icon name="arrow" /></div></div></div><!-- 商品评价 --><div class="comment"><div class="comment-title"><div class="left">商品评价 (5条)</div><div class="right">查看更多 <van-icon name="arrow" /> </div></div><div class="comment-list"><div class="comment-item" v-for="item in 3" :key="item"><div class="top"><img src="http://cba.itlike.com/public/uploads/10001/20230321/a0db9adb2e666a65bc8dd133fbed7834.png" alt=""><div class="name">神雕大侠</div><van-rate :size="16" :value="5" color="#ffd21e" void-icon="star" void-color="#eee"/></div><div class="content">质量很不错 挺喜欢的</div><div class="time">2023-03-21 15:01:35</div></div></div></div><!-- 商品描述 --><div class="desc"><img src="https://uimgproxy.suning.cn/uimg1/sop/commodity/kHgx21fZMWwqirkMhawkAw.jpg" alt=""><img src="https://uimgproxy.suning.cn/uimg1/sop/commodity/0rRMmncfF0kGjuK5cvLolg.jpg" alt=""><img src="https://uimgproxy.suning.cn/uimg1/sop/commodity/2P04A4Jn0HKxbKYSHc17kw.jpg" alt=""><img src="https://uimgproxy.suning.cn/uimg1/sop/commodity/MT4k-mPd0veQXWPPO5yTIw.jpg" alt=""></div><!-- 底部 --><div class="footer"><div class="icon-home"><van-icon name="wap-home-o" /><span>首页</span></div><div class="icon-cart"><van-icon name="shopping-cart-o" /><span>购物车</span></div><div class="btn-add">加入购物车</div><div class="btn-buy">立刻购买</div></div></div>
</template><script>
export default {name: 'ProDetail',data () {return {images: ['https://img01.yzcdn.cn/vant/apple-1.jpg','https://img01.yzcdn.cn/vant/apple-2.jpg'],current: 0}},methods: {onChange (index) {this.current = index}}
}
</script><style lang="less" scoped>
.prodetail {padding-top: 46px;::v-deep .van-icon-arrow-left {color: #333;}img {display: block;width: 100%;}.custom-indicator {position: absolute;right: 10px;bottom: 10px;padding: 5px 10px;font-size: 12px;background: rgba(0, 0, 0, 0.1);border-radius: 15px;}.desc {width: 100%;overflow: scroll;::v-deep img {display: block;width: 100%!important;}}.info {padding: 10px;}.title {display: flex;justify-content: space-between;.now {color: #fa2209;font-size: 20px;}.oldprice {color: #959595;font-size: 16px;text-decoration: line-through;margin-left: 5px;}.sellcount {color: #959595;font-size: 16px;position: relative;top: 4px;}}.msg {font-size: 16px;line-height: 24px;margin-top: 5px;}.service {display: flex;justify-content: space-between;line-height: 40px;margin-top: 10px;font-size: 16px;background-color: #fafafa;.left-words {span {margin-right: 10px;}.van-icon {margin-right: 4px;color: #fa2209;}}}.comment {padding: 10px;}.comment-title {display: flex;justify-content: space-between;.right {color: #959595;}}.comment-item {font-size: 16px;line-height: 30px;.top {height: 30px;display: flex;align-items: center;margin-top: 20px;img {width: 20px;height: 20px;}.name {margin: 0 10px;}}.time {color: #999;}}.footer {position: fixed;left: 0;bottom: 0;width: 100%;height: 55px;background-color: #fff;border-top: 1px solid #ccc;display: flex;justify-content: space-evenly;align-items: center;.icon-home, .icon-cart {display: flex;flex-direction: column;align-items: center;justify-content: center;font-size: 14px;.van-icon {font-size: 24px;}}.btn-add,.btn-buy {height: 36px;line-height: 36px;width: 120px;border-radius: 18px;background-color: #ffa900;text-align: center;color: #fff;font-size: 14px;}.btn-buy {background-color: #fe5630;}}
}.tips {padding: 10px;
}
</style>

Lazyload``Rate是 Vue 指令，使用前需要对指令进行注册。

import { Lazyload，Rate } from 'vant'Vue.use(Rate)
Vue.use(Lazyload)

（2）商品详情 - 动态渲染介绍

动态路由参数，获取商品 id

computed: {goodsId () {return this.$route.params.id}
},

封装 api 接口 api/product.js

// 获取商品详情数据
export const getProDetail = (goodsId) => {return request.get('/goods/detail', {params: {goodsId}})
}

一进入页面发送请求，获取商品详情数据

data () {return {images: ['https://img01.yzcdn.cn/vant/apple-1.jpg','https://img01.yzcdn.cn/vant/apple-2.jpg'],current: 0,detail: {},}
},async created () {this.getDetail()
},methods: {...async getDetail () {const { data: { detail } } = await getProDetail(this.goodsId)this.detail = detailthis.images = detail.goods_images}
}

动态渲染

<div class="prodetail" v-if="detail.goods_name"><van-swipe :autoplay="3000" @change="onChange"><van-swipe-item v-for="(image, index) in images" :key="index"><img v-lazy="image.external_url" /></van-swipe-item><template #indicator><div class="custom-indicator">{{ current + 1 }} / {{ images.length }}</div></template>
</van-swipe><!-- 商品说明 -->
<div class="info"><div class="title"><div class="price"><span class="now">￥{{ detail.goods_price_min }}</span><span class="oldprice">￥{{ detail.goods_price_max }}</span></div><div class="sellcount">已售{{ detail.goods_sales }}件</div></div><div class="msg text-ellipsis-2">{{ detail.goods_name }}</div><div class="service"><div class="left-words"><span><van-icon name="passed" />七天无理由退货</span><span><van-icon name="passed" />48小时发货</span></div><div class="right-icon"><van-icon name="arrow" /></div></div>
</div><!-- 商品描述 -->
<div class="tips">商品描述</div>
<div class="desc" v-html="detail.content"></div>

（3）商品详情 - 动态渲染评价

封装接口 api/product.js

// 获取商品评价
export const getProComments = (goodsId, limit) => {return request.get('/comment/listRows', {params: {goodsId,limit}})
}

页面调用获取数据

import defaultImg from '@/assets/default-avatar.png'data () {return {...total: 0,commentList: [],defaultImg
},async created () {...this.getComments()
},async getComments () {const { data: { list, total } } = await getProComments(this.goodsId, 3)this.commentList = listthis.total = total
},

动态渲染评价

<!-- 商品评价 -->
<div class="comment" v-if="total > 0"><div class="comment-title"><div class="left">商品评价 ({{ total }}条)</div><div class="right">查看更多 <van-icon name="arrow" /> </div></div><div class="comment-list"><div class="comment-item" v-for="item in commentList" :key="item.comment_id"><div class="top"><img :src="item.user.avatar_url || defaultImg" alt=""><div class="name">{{ item.user.nick_name }}</div><van-rate :size="16" :value="item.score / 2" color="#ffd21e" void-icon="star" void-color="#eee"/></div><div class="content">{{ item.content }}</div><div class="time">{{ item.create_time }}</div></div> </div>
</div>

27、加入购物车 - 唤起弹层

按需导入 van-action-sheet

import { ActionSheet } from 'vant'
Vue.use(ActionSheet)

准备 van-action-sheet 基本结构

<van-action-sheet v-model="showPannel" :title="mode === 'cart' ? '加入购物车' : '立刻购买'">111
</van-action-sheet>data () {return {...mode: 'cart'showPannel: false}
},

注册点击事件，点击时唤起弹窗

<div class="btn-add" @click="addFn">加入购物车</div>
<div class="btn-buy" @click="buyFn">立刻购买</div>addFn () {this.mode = 'cart'this.showPannel = true
},
buyFn () {this.mode = 'buyNow'this.showPannel = true
}

完善结构

<van-action-sheet v-model="showPannel" :title="mode === 'cart' ? '加入购物车' : '立刻购买'"><div class="product"><div class="product-title"><div class="left"><img src="http://cba.itlike.com/public/uploads/10001/20230321/8f505c6c437fc3d4b4310b57b1567544.jpg" alt=""></div><div class="right"><div class="price"><span>¥</span><span class="nowprice">9.99</span></div><div class="count"><span>库存</span><span>55</span></div></div></div><div class="num-box"><span>数量</span>数字框占位</div><div class="showbtn" v-if="true"><div class="btn" v-if="true">加入购物车</div><div class="btn now" v-else>立刻购买</div></div><div class="btn-none" v-else>该商品已抢完</div></div>
</van-action-sheet>

.product {.product-title {display: flex;.left {img {width: 90px;height: 90px;}margin: 10px;}.right {flex: 1;padding: 10px;.price {font-size: 14px;color: #fe560a;.nowprice {font-size: 24px;margin: 0 5px;}}}}.num-box {display: flex;justify-content: space-between;padding: 10px;align-items: center;}.btn, .btn-none {height: 40px;line-height: 40px;margin: 20px;border-radius: 20px;text-align: center;color: rgb(255, 255, 255);background-color: rgb(255, 148, 2);}.btn.now {background-color: #fe5630;}.btn-none {background-color: #cccccc;}
}

动态渲染

<van-action-sheet v-model="showPannel" :title="mode === 'cart' ? '加入购物车' : '立刻购买'"><div class="product"><div class="product-title"><div class="left"><img :src="detail.goods_image" alt=""></div><div class="right"><div class="price"><span>¥</span><span class="nowprice">{{ detail.goods_price_min }}</span></div><div class="count"><span>库存</span><span>{{ detail.stock_total }}</span></div></div></div><div class="num-box"><span>数量</span>数字框组件</div><div class="showbtn" v-if="detail.stock_total > 0"><div class="btn" v-if="mode === 'cart'">加入购物车</div><div class="btn now" v-if="mode === 'buyNow'">立刻购买</div></div><div class="btn-none" v-else>该商品已抢完</div></div>
</van-action-sheet>

28、加入购物车 - 封装数字框组件

封装组件 components/CountBox.vue

<template><div class="count-box"><button @click="handleSub" class="minus">-</button><input :value="value" @change="handleChange" class="inp" type="text"><button @click="handleAdd" class="add">+</button></div>
</template><script>
export default {props: {value: {type: Number,default: 1}},methods: {handleSub () {if (this.value <= 1) {return}this.$emit('input', this.value - 1)},handleAdd () {this.$emit('input', this.value + 1)},handleChange (e) {// console.log(e.target.value)const num = +e.target.value // 转数字处理 (1) 数字 (2) NaN// 输入了不合法的文本 或 输入了负值，回退成原来的 value 值if (isNaN(num) || num < 1) {e.target.value = this.valuereturn}this.$emit('input', num)}}
}
</script><style lang="less" scoped>
.count-box {width: 110px;display: flex;.add, .minus {width: 30px;height: 30px;outline: none;border: none;background-color: #efefef;}.inp {width: 40px;height: 30px;outline: none;border: none;margin: 0 5px;background-color: #efefef;text-align: center;}
}
</style>

使用组件

import CountBox from '@/components/CountBox.vue'export default {name: 'ProDetail',components: {CountBox},data () {return {addCount: 1...}},
}<div class="num-box"><span>数量</span><CountBox v-model="addCount"></CountBox>
</div>

29、加入购物车 - 判断 token 添加登录提示

按需注册 dialog 组件

import { Dialog } from 'vant'
Vue.use(Dialog)

按钮注册点击事件

<div class="btn" v-if="mode === 'cart'" @click="addCart">加入购物车</div>

添加 token 鉴权判断，跳转携带回跳地址

async addCart () {// 判断用户是否有登录if (!this.$store.getters.token) {this.$dialog.confirm({title: '温馨提示',message: '此时需要先登录才能继续操作哦',confirmButtonText: '去登录',cancelButtonText: '再逛逛'}).then(() => {this.$router.replace({path: '/login',query: {backUrl: this.$route.fullPath}})}).catch(() => {})return}console.log('进行加入购物车操作')
}

登录后，若有回跳地址，则回跳页面

// 判断有无回跳地址
const url = this.$route.query.backUrl || '/'
this.$router.replace(url)

30、加入购物车 - 封装接口进行请求

目标：封装接口，进行加入购物车的请求

api/cart.js 中封装接口
页面中调用接口
遇到问题：接口需要传递 token
解决问题：请求拦截器统一携带 token
小图标定制

1.封装接口 api/cart.js

// 加入购物车
export const addCart = (goodsId, goodsNum, goodsSkuId) => {return request.post('/cart/add', {goodsId,goodsNum,goodsSkuId})
}

2.页面中调用请求

data () {return {cartTotal: 0}  
},async addCart () {...const { data } = await addCart(this.goodsId, this.addCount, this.detail.skuList[0].goods_sku_id)this.cartTotal = data.cartTotalthis.$toast('加入购物车成功')this.showPannel = false
},

3.请求拦截器中，统一携带 token

// 自定义配置 - 请求/响应 拦截器
// 添加请求拦截器
instance.interceptors.request.use(function (config) {...const token = store.getters.tokenif (token) {config.headers['Access-Token'] = tokenconfig.headers.platform = 'H5'}return config
}, function (error) {// 对请求错误做些什么return Promise.reject(error)
})

4.准备小图标

<div class="icon-cart"><span v-if="cartTotal > 0" class="num">{{ cartTotal }}</span><van-icon name="shopping-cart-o" /><span>购物车</span>
</div>

5.定制样式

.footer .icon-cart {position: relative;padding: 0 6px;.num {z-index: 999;position: absolute;top: -2px;right: 0;min-width: 16px;padding: 0 4px;color: #fff;text-align: center;background-color: #ee0a24;border-radius: 50%;}
}

31、购物车模块

(1) 购物车 - 静态布局

基本结构

<template><div class="cart"><van-nav-bar title="购物车" fixed /><!-- 购物车开头 --><div class="cart-title"><span class="all">共<i>4</i>件商品</span><span class="edit"><van-icon name="edit" />编辑</span></div><!-- 购物车列表 --><div class="cart-list"><div class="cart-item" v-for="item in 10" :key="item"><van-checkbox></van-checkbox><div class="show"><img src="http://cba.itlike.com/public/uploads/10001/20230321/a072ef0eef1648a5c4eae81fad1b7583.jpg" alt=""></div><div class="info"><span class="tit text-ellipsis-2">新Pad 14英寸 12+128 远峰蓝 M6平板电脑 智能安卓娱乐十核游戏学习二合一 低蓝光护眼超清4K全面三星屏5GWIFI全网通 蓝魔快本平板</span><span class="bottom"><div class="price">¥ <span>1247.04</span></div><div class="count-box"><button class="minus">-</button><input class="inp" :value="4" type="text" readonly><button class="add">+</button></div></span></div></div></div><div class="footer-fixed"><div  class="all-check"><van-checkbox  icon-size="18"></van-checkbox>全选</div><div class="all-total"><div class="price"><span>合计：</span><span>¥ <i class="totalPrice">99.99</i></span></div><div v-if="true" class="goPay">结算(5)</div><div v-else class="delete">删除</div></div></div></div>
</template><script>
export default {name: 'CartPage'
}
</script><style lang="less" scoped>
// 主题 padding
.cart {padding-top: 46px;padding-bottom: 100px;background-color: #f5f5f5;min-height: 100vh;.cart-title {height: 40px;display: flex;justify-content: space-between;align-items: center;padding: 0 10px;font-size: 14px;.all {i {font-style: normal;margin: 0 2px;color: #fa2209;font-size: 16px;}}.edit {.van-icon {font-size: 18px;}}}.cart-item {margin: 0 10px 10px 10px;padding: 10px;display: flex;justify-content: space-between;background-color: #ffffff;border-radius: 5px;.show img {width: 100px;height: 100px;}.info {width: 210px;padding: 10px 5px;font-size: 14px;display: flex;flex-direction: column;justify-content: space-between;.bottom {display: flex;justify-content: space-between;.price {display: flex;align-items: flex-end;color: #fa2209;font-size: 12px;span {font-size: 16px;}}.count-box {display: flex;width: 110px;.add,.minus {width: 30px;height: 30px;outline: none;border: none;}.inp {width: 40px;height: 30px;outline: none;border: none;background-color: #efefef;text-align: center;margin: 0 5px;}}}}}
}.footer-fixed {position: fixed;left: 0;bottom: 50px;height: 50px;width: 100%;border-bottom: 1px solid #ccc;background-color: #fff;display: flex;justify-content: space-between;align-items: center;padding: 0 10px;.all-check {display: flex;align-items: center;.van-checkbox {margin-right: 5px;}}.all-total {display: flex;line-height: 36px;.price {font-size: 14px;margin-right: 10px;.totalPrice {color: #fa2209;font-size: 18px;font-style: normal;}}.goPay, .delete {min-width: 100px;height: 36px;line-height: 36px;text-align: center;background-color: #fa2f21;color: #fff;border-radius: 18px;&.disabled {background-color: #ff9779;}}}}
</style>

按需导入组件

import { Checkbox } from 'vant'
Vue.use(Checkbox)

(2) 购物车 - 构建 vuex 模块 - 获取数据存储

新建 modules/cart.js 模块

export default {namespaced: true,state () {return {cartList: []}},mutations: {},actions: {},getters: {}
}

挂载到 store 上面

import Vue from 'vue'
import Vuex from 'vuex'
import user from './modules/user'
import cart from './modules/cart'Vue.use(Vuex)export default new Vuex.Store({getters: {token: state => state.user.userInfo.token},modules: {user,cart}
})

封装 API 接口 api/cart.js

// 获取购物车列表数据
export const getCartList = () => {return request.get('/cart/list')
}

封装 action 和 mutation

mutations: {setCartList (state, newList) {state.cartList = newList},
},
actions: {async getCartAction (context) {const { data } = await getCartList()data.list.forEach(item => {item.isChecked = true})context.commit('setCartList', data.list)}
},

页面中 dispatch 调用

computed: {isLogin () {return this.$store.getters.token}
},
created () {if (this.isLogin) {this.$store.dispatch('cart/getCartAction')}
},

(3) 购物车 - mapState - 渲染购物车列表

将数据映射到页面

import { mapState } from 'vuex'computed: {...mapState('cart', ['cartList'])
}

动态渲染

<!-- 购物车列表 -->
<div class="cart-list"><div class="cart-item" v-for="item in cartList" :key="item.goods_id"><van-checkbox icon-size="18" :value="item.isChecked"></van-checkbox><div class="show" @click="$router.push(`/prodetail/${item.goods_id}`)"><img :src="item.goods.goods_image" alt=""></div><div class="info"><span class="tit text-ellipsis-2">{{ item.goods.goods_name }}</span><span class="bottom"><div class="price">¥ <span>{{ item.goods.goods_price_min }}</span></div><CountBox :value="item.goods_num"></CountBox></span></div></div>
</div>

(4) 购物车 - 封装 getters - 动态计算展示

封装 getters：商品总数 / 选中的商品列表 / 选中的商品总数 / 选中的商品总价

getters: {cartTotal (state) {return state.cartList.reduce((sum, item, index) => sum + item.goods_num, 0)},selCartList (state) {return state.cartList.filter(item => item.isChecked)},selCount (state, getters) {return getters.selCartList.reduce((sum, item, index) => sum + item.goods_num, 0)},selPrice (state, getters) {return getters.selCartList.reduce((sum, item, index) => {return sum + item.goods_num * item.goods.goods_price_min}, 0).toFixed(2)}
}

页面中 mapGetters 映射使用

computed: {...mapGetters('cart', ['cartTotal', 'selCount', 'selPrice']),
},<!-- 购物车开头 -->
<div class="cart-title"><span class="all">共<i>{{ cartTotal || 0 }}</i>件商品</span><span class="edit"><van-icon name="edit"  />编辑</span>
</div><div class="footer-fixed"><div  class="all-check"><van-checkbox  icon-size="18"></van-checkbox>全选</div><div class="all-total"><div class="price"><span>合计：</span><span>¥ <i class="totalPrice">{{ selPrice }}</i></span></div><div v-if="true" :class="{ disabled: selCount === 0 }" class="goPay">结算({{ selCount }})</div><div v-else  :class="{ disabled: selCount === 0 }" class="delete">删除({{ selCount }})</div></div>
</div>

(5) 购物车 - 全选反选功能

全选 getters

getters: {isAllChecked (state) {return state.cartList.every(item => item.isChecked)}
}...mapGetters('cart', ['isAllChecked']),<div class="all-check"><van-checkbox :value="isAllChecked" icon-size="18"></van-checkbox>全选
</div>

点击小选，修改状态

<van-checkbox @click="toggleCheck(item.goods_id)" ...></van-checkbox>toggleCheck (goodsId) {this.$store.commit('cart/toggleCheck', goodsId)
},mutations: {toggleCheck (state, goodsId) {const goods = state.cartList.find(item => item.goods_id === goodsId)goods.isChecked = !goods.isChecked},
}

点击全选，重置状态

<div @click="toggleAllCheck" class="all-check"><van-checkbox :value="isAllChecked" icon-size="18"></van-checkbox>全选
</div>toggleAllCheck () {this.$store.commit('cart/toggleAllCheck', !this.isAllChecked)
},mutations: {toggleAllCheck (state, flag) {state.cartList.forEach(item => {item.isChecked = flag})},
}

(6)购物车 - 数字框修改数量

封装 api 接口

// 更新购物车商品数量
export const changeCount = (goodsId, goodsNum, goodsSkuId) => {return request.post('/cart/update', {goodsId,goodsNum,goodsSkuId})
}

页面中注册点击事件，传递数据

<CountBox :value="item.goods_num" @input="value => changeCount(value, item.goods_id, item.goods_sku_id)"></CountBox>changeCount (value, goodsId, skuId) {this.$store.dispatch('cart/changeCountAction', {value,goodsId,skuId})
},

提供 action 发送请求， commit mutation

mutations: {changeCount (state, { goodsId, value }) {const obj = state.cartList.find(item => item.goods_id === goodsId)obj.goods_num = value}
},
actions: {async changeCountAction (context, obj) {const { goodsId, value, skuId } = objcontext.commit('changeCount', {goodsId,value})await changeCount(goodsId, value, skuId)},
}

(7)购物车 - 编辑切换状态

data 提供数据, 定义是否在编辑删除的状态

data () {return {isEdit: false}
},

注册点击事件，修改状态

<span class="edit" @click="isEdit = !isEdit"><van-icon name="edit"  />编辑
</span>

底下按钮根据状态变化

<div v-if="!isEdit" :class="{ disabled: selCount === 0 }" class="goPay">去结算（{{ selCount }}）
</div>
<div v-else :class="{ disabled: selCount === 0 }" class="delete">删除</div>

监视编辑状态，动态控制复选框状态

watch: {isEdit (value) {if (value) {this.$store.commit('cart/toggleAllCheck', false)} else {this.$store.commit('cart/toggleAllCheck', true)}}
}

(8)购物车 - 删除功能完成

查看接口，封装 API ( 注意：此处 id 为获取回来的购物车数据的 id )

// 删除购物车
export const delSelect = (cartIds) => {return request.post('/cart/clear', {cartIds})
}

注册删除点击事件

<div v-else :class="{ disabled: selCount === 0 }" @click="handleDel" class="delete">删除({{ selCount }})
</div>async handleDel () {if (this.selCount === 0) returnawait this.$store.dispatch('cart/delSelect')this.isEdit = false
},

提供 actions

actions: {// 删除购物车数据async delSelect (context) {const selCartList = context.getters.selCartListconst cartIds = selCartList.map(item => item.id)await delSelect(cartIds)Toast('删除成功')// 重新拉取最新的购物车数据 (重新渲染)context.dispatch('getCartAction')}
},

(9)购物车 - 空购物车处理

外面包个大盒子，添加 v-if 判断

<div class="cart-box" v-if="isLogin && cartList.length > 0"><!-- 购物车开头 --><div class="cart-title">...</div><!-- 购物车列表 --><div class="cart-list">...</div><div class="footer-fixed">...</div>
</div><div class="empty-cart" v-else><img src="@/assets/empty.png" alt=""><div class="tips">您的购物车是空的, 快去逛逛吧</div><div class="btn" @click="$router.push('/')">去逛逛</div>
</div>

相关样式

.empty-cart {padding: 80px 30px;img {width: 140px;height: 92px;display: block;margin: 0 auto;}.tips {text-align: center;color: #666;margin: 30px;}.btn {width: 110px;height: 32px;line-height: 32px;text-align: center;background-color: #fa2c20;border-radius: 16px;color: #fff;display: block;margin: 0 auto;}
}

32、订单结算台

(1) 静态布局

准备静态页面

<template><div class="pay"><van-nav-bar fixed title="订单结算台" left-arrow @click-left="$router.go(-1)" /><!-- 地址相关 --><div class="address"><div class="left-icon"><van-icon name="logistics" /></div><div class="info" v-if="true"><div class="info-content"><span class="name">小红</span><span class="mobile">13811112222</span></div><div class="info-address">江苏省 无锡市 南长街 110号 504</div></div><div class="info" v-else>请选择配送地址</div><div class="right-icon"><van-icon name="arrow" /></div></div><!-- 订单明细 --><div class="pay-list"><div class="list"><div class="goods-item"><div class="left"><img src="http://cba.itlike.com/public/uploads/10001/20230321/8f505c6c437fc3d4b4310b57b1567544.jpg" alt="" /></div><div class="right"><p class="tit text-ellipsis-2">三星手机 SAMSUNG Galaxy S23 8GB+256GB 超视觉夜拍系统 超清夜景 悠雾紫 5G手机 游戏拍照旗舰机s23</p><p class="info"><span class="count">x3</span><span class="price">¥9.99</span></p></div></div></div><div class="flow-num-box"><span>共 12 件商品，合计：</span><span class="money">￥1219.00</span></div><div class="pay-detail"><div class="pay-cell"><span>订单总金额：</span><span class="red">￥1219.00</span></div><div class="pay-cell"><span>优惠券：</span><span>无优惠券可用</span></div><div class="pay-cell"><span>配送费用：</span><span v-if="false">请先选择配送地址</span><span v-else class="red">+￥0.00</span></div></div><!-- 支付方式 --><div class="pay-way"><span class="tit">支付方式</span><div class="pay-cell"><span><van-icon name="balance-o" />余额支付（可用 ¥ 999919.00 元）</span><!-- <span>请先选择配送地址</span> --><span class="red"><van-icon name="passed" /></span></div></div><!-- 买家留言 --><div class="buytips"><textarea placeholder="选填：买家留言（50字内）" name="" id="" cols="30" rows="10"></textarea></div></div><!-- 底部提交 --><div class="footer-fixed"><div class="left">实付款：<span>￥999919</span></div><div class="tipsbtn">提交订单</div></div></div>
</template><script>
export default {name: 'PayIndex',data () {return {}},methods: {}
}
</script><style lang="less" scoped>
.pay {padding-top: 46px;padding-bottom: 46px;::v-deep {.van-nav-bar__arrow {color: #333;}}
}
.address {display: flex;align-items: center;justify-content: flex-start;padding: 20px;font-size: 14px;color: #666;position: relative;background: url(@/assets/border-line.png) bottom repeat-x;background-size: 60px auto;.left-icon {margin-right: 20px;}.right-icon {position: absolute;right: 20px;top: 50%;transform: translateY(-7px);}
}
.goods-item {height: 100px;margin-bottom: 6px;padding: 10px;background-color: #fff;display: flex;.left {width: 100px;img {display: block;width: 80px;margin: 10px auto;}}.right {flex: 1;font-size: 14px;line-height: 1.3;padding: 10px;padding-right: 0px;display: flex;flex-direction: column;justify-content: space-evenly;color: #333;.info {margin-top: 5px;display: flex;justify-content: space-between;.price {color: #fa2209;}}}
}.flow-num-box {display: flex;justify-content: flex-end;padding: 10px 10px;font-size: 14px;border-bottom: 1px solid #efefef;.money {color: #fa2209;}
}.pay-cell {font-size: 14px;padding: 10px 12px;color: #333;display: flex;justify-content: space-between;.red {color: #fa2209;}
}
.pay-detail {border-bottom: 1px solid #efefef;
}.pay-way {font-size: 14px;padding: 10px 12px;border-bottom: 1px solid #efefef;color: #333;.tit {line-height: 30px;}.pay-cell {padding: 10px 0;}.van-icon {font-size: 20px;margin-right: 5px;}
}.buytips {display: block;textarea {display: block;width: 100%;border: none;font-size: 14px;padding: 12px;height: 100px;}
}.footer-fixed {position: fixed;background-color: #fff;left: 0;bottom: 0;width: 100%;height: 46px;line-height: 46px;border-top: 1px solid #efefef;font-size: 14px;display: flex;.left {flex: 1;padding-left: 12px;color: #666;span {color:#fa2209;}}.tipsbtn {width: 121px;background: linear-gradient(90deg,#f9211c,#ff6335);color: #fff;text-align: center;line-height: 46px;display: block;font-size: 14px;}
}
</style>

(2) 获取收货地址列表

1 封装获取地址的接口

import request from '@/utils/request'// 获取地址列表
export const getAddressList = () => {return request.get('/address/list')
}

2 页面中 - 调用获取地址

data () {return {addressList: []}
},
computed: {selectAddress () {// 这里地址管理不是主线业务，直接获取默认第一条地址return this.addressList[0] }
},
async created () {this.getAddressList()
},
methods: {async getAddressList () {const { data: { list } } = await getAddressList()this.addressList = list}
}

3 页面中 - 进行渲染

computed: {longAddress () {const region = this.selectAddress.regionreturn region.province + region.city + region.region + this.selectAddress.detail}
},<div class="info" v-if="selectAddress?.address_id"><div class="info-content"><span class="name">{{ selectAddress.name }}</span><span class="mobile">{{ selectAddress.phone }}</span></div><div class="info-address">{{ longAddress }}</div>
</div>

33、订单结算台 - 确认订单信息

订单结算 - 封装通用接口

思路分析: 这里的订单结算，有两种情况：

购物车结算，需要两个参数

① mode=“cart”

② cartIds=“cartId, cartId”
立即购买结算，需要三个参数

① mode=“buyNow”

② goodsId=“商品id”

③ goodsSkuId=“商品skuId”

都需要跳转时将参数传递过来

封装通用 API 接口 api/order

import request from '@/utils/request'export const checkOrder = (mode, obj) => {return request.get('/checkout/order', {params: {mode,delivery: 0,couponId: 0,isUsePoints: 0,...obj}})
}

34、订单结算台 - 购物车结算

订单结算 - 购物车结算

1 跳转时，传递查询参数

layout/cart.vue

<div @click="goPay">结算({{ selCount }})</div>goPay () {if (this.selCount > 0) {this.$router.push({path: '/pay',query: {mode: 'cart',cartIds: this.selCartList.map(item => item.id).join(',')}})}
}

2 页面中接收参数, 调用接口，获取数据

data () {return {order: {},personal: {}}
},computed: {mode () {return this.$route.query.mode},cartIds () {return this.$route.query.cartIds}
}async created () {this.getOrderList()
},async getOrderList () {if (this.mode === 'cart') {const { data: { order, personal } } = await checkOrder(this.mode, { cartIds: this.cartIds })this.order = orderthis.personal = personal}
}

3 基于数据进行渲染

<!-- 订单明细 -->
<div class="pay-list" v-if="order.goodsList"><div class="list"><div class="goods-item" v-for="item in order.goodsList" :key="item.goods_id"><div class="left"><img :src="item.goods_image" alt="" /></div><div class="right"><p class="tit text-ellipsis-2">{{ item.goods_name }}</p><p class="info"><span class="count">x{{ item.total_num }}</span><span class="price">¥{{ item.total_pay_price }}</span></p></div></div></div><div class="flow-num-box"><span>共 {{ order.orderTotalNum }} 件商品，合计：</span><span class="money">￥{{ order.orderTotalPrice }}</span></div><div class="pay-detail"><div class="pay-cell"><span>订单总金额：</span><span class="red">￥{{ order.orderTotalPrice }}</span></div><div class="pay-cell"><span>优惠券：</span><span>无优惠券可用</span></div><div class="pay-cell"><span>配送费用：</span><span v-if="!selectAddress">请先选择配送地址</span><span v-else class="red">+￥0.00</span></div></div><!-- 支付方式 --><div class="pay-way"><span class="tit">支付方式</span><div class="pay-cell"><span><van-icon name="balance-o" />余额支付（可用 ¥ {{ personal.balance }} 元）</span><!-- <span>请先选择配送地址</span> --><span class="red"><van-icon name="passed" /></span></div></div><!-- 买家留言 --><div class="buytips"><textarea placeholder="选填：买家留言（50字内）" name="" id="" cols="30" rows="10"></textarea></div>
</div><!-- 底部提交 -->
<div class="footer-fixed"><div class="left">实付款：<span>￥{{ order.orderTotalPrice }}</span></div><div class="tipsbtn">提交订单</div>
</div>

35、订单结算台 - 立即购买结算

订单结算 - 立即购买结算

1 点击跳转传参

prodetail/index.vue

<div class="btn" v-if="mode === 'buyNow'" @click="goBuyNow">立刻购买</div>goBuyNow () {this.$router.push({path: '/pay',query: {mode: 'buyNow',goodsId: this.goodsId,goodsSkuId: this.detail.skuList[0].goods_sku_id,goodsNum: this.addCount}})
}

2 计算属性处理参数

computed: {...goodsId () {return this.$route.query.goodsId},goodsSkuId () {return this.$route.query.goodsSkuId},goodsNum () {return this.$route.query.goodsNum}
}

3 基于请求时携带参数发请求渲染

async getOrderList () {...if (this.mode === 'buyNow') {const { data: { order, personal } } = await checkOrder(this.mode, {goodsId: this.goodsId,goodsSkuId: this.goodsSkuId,goodsNum: this.goodsNum})this.order = orderthis.personal = personal}
}

mixins 复用 - 处理登录确认框的弹出

1 新建一个 mixin 文件 mixins/loginConfirm.js

export default {// 此处编写的就是 Vue组件实例的 配置项，通过一定语法，可以直接混入到组件内部// data methods computed 生命周期函数 ...// 注意点：//   1.如果此处 和 组件内，提供了同名的 data 和 methods ,则组件内优先级更高//   2.如果编写了生命周期函数，则mixins中的生命周期函数 和 页面的生命周期函数，会用数组管理统一执行methods: {// 是否需要弹登录确认框// (1) 需要，返回 true，并直接弹出登录确认框// (2) 不需要，返回 falseloginConfirm () {if (!this.$store.getters.token) {this.$dialog.confirm({title: '温馨提示',message: '此时需要先登录才能继续操作哦',confirmButtonText: '去登陆',cancelButtonText: '再逛逛'}).then(() => {// 如果希望，跳转到登录 => 登录后能回跳回来，需要在跳转去携带参数 (当前的路径地址)// this.$route.fullPath (会包含查询参数)this.$router.replace({path: '/login',query: {backUrl: this.$route.fullPath}})}).catch(() => {})return true}return false}}
}

2 页面中导入，混入方法

import loginConfirm from '@/mixins/loginConfirm'export default {name: 'ProDetail',mixins: [loginConfirm],...
}

3 页面中调用混入的方法

async addCart () {if (this.loginConfirm()) {return}const { data } = await addCart(this.goodsId, this.addCount, this.detail.skuList[0].goods_sku_id)this.cartTotal = data.cartTotalthis.$toast('加入购物车成功')this.showPannel = falseconsole.log(this.cartTotal)
},goBuyNow () {if (this.loginConfirm()) {return}this.$router.push({path: '/pay',query: {mode: 'buyNow',goodsId: this.goodsId,goodsSkuId: this.detail.skuList[0].goods_sku_id,goodsNum: this.addCount}})
}

36、提交订单并支付

目标：封装 API 请求方法，提交订单并支付
核心步骤：

封装通用请求方法
买家留言绑定
注册事件，调用方法提交订单并支付

1 封装 API 通用方法（统一余额支付）

// 提交订单
export const submitOrder = (mode, params) => {return request.post('/checkout/submit', {mode,delivery: 10, // 物流方式  配送方式 (10快递配送 20门店自提)couponId: 0, // 优惠券 idpayType: 10, // 余额支付isUsePoints: 0, // 是否使用积分...params})
}

2 买家留言绑定

data () {return {remark: ''}
},
<div class="buytips"><textarea v-model="remark" placeholder="选填：买家留言（50字内）" name="" id="" cols="30" rows="10"></textarea>
</div>

3 注册点击事件，提交订单并支付

<div class="tipsbtn" @click="submitOrder">提交订单</div>// 提交订单
async submitOrder () {if (this.mode === 'cart') {await submitOrder(this.mode, {remark: this.remark,cartIds: this.cartIds})}if (this.mode === 'buyNow') {await submitOrder(this.mode, {remark: this.remark,goodsId: this.goodsId,goodsSkuId: this.goodsSkuId,goodsNum: this.goodsNum})}this.$toast.success('支付成功')this.$router.replace('/myorder')
}

37、订单管理 & 个人中心 (快速实现)

（1）个人中心 - 基本渲染

1 封装获取个人信息 - API接口

import request from '@/utils/request'// 获取个人信息
export const getUserInfoDetail = () => {return request.get('/user/info')
}

2 调用接口，获取数据进行渲染

<template><div class="user"><div class="head-page" v-if="isLogin"><div class="head-img"><img src="@/assets/default-avatar.png" alt="" /></div><div class="info"><div class="mobile">{{ detail.mobile }}</div><div class="vip"><van-icon name="diamond-o" />普通会员</div></div></div><div v-else class="head-page" @click="$router.push('/login')"><div class="head-img"><img src="@/assets/default-avatar.png" alt="" /></div><div class="info"><div class="mobile">未登录</div><div class="words">点击登录账号</div></div></div><div class="my-asset"><div class="asset-left"><div class="asset-left-item"><span>{{ detail.pay_money || 0 }}</span><span>账户余额</span></div><div class="asset-left-item"><span>0</span><span>积分</span></div><div class="asset-left-item"><span>0</span><span>优惠券</span></div></div><div class="asset-right"><div class="asset-right-item"><van-icon name="balance-pay" /><span>我的钱包</span></div></div></div><div class="order-navbar"><div class="order-navbar-item" @click="$router.push('/myorder?dataType=all')"><van-icon name="balance-list-o" /><span>全部订单</span></div><div class="order-navbar-item" @click="$router.push('/myorder?dataType=payment')"><van-icon name="clock-o" /><span>待支付</span></div><div class="order-navbar-item" @click="$router.push('/myorder?dataType=delivery')"><van-icon name="logistics" /><span>待发货</span></div><div class="order-navbar-item" @click="$router.push('/myorder?dataType=received')"><van-icon name="send-gift-o" /><span>待收货</span></div></div><div class="service"><div class="title">我的服务</div><div class="content"><div class="content-item"><van-icon name="records" /><span>收货地址</span></div><div class="content-item"><van-icon name="gift-o" /><span>领券中心</span></div><div class="content-item"><van-icon name="gift-card-o" /><span>优惠券</span></div><div class="content-item"><van-icon name="question-o" /><span>我的帮助</span></div><div class="content-item"><van-icon name="balance-o" /><span>我的积分</span></div><div class="content-item"><van-icon name="refund-o" /><span>退换/售后</span></div></div></div><div class="logout-btn"><button>退出登录</button></div></div>
</template><script>
import { getUserInfoDetail } from '@/api/user.js'
export default {name: 'UserPage',data () {return {detail: {}}},created () {if (this.isLogin) {this.getUserInfoDetail()}},computed: {isLogin () {return this.$store.getters.token}},methods: {async getUserInfoDetail () {const { data: { userInfo } } = await getUserInfoDetail()this.detail = userInfoconsole.log(this.detail)}}
}
</script><style lang="less" scoped>
.user {min-height: 100vh;background-color: #f7f7f7;padding-bottom: 50px;
}.head-page {height: 130px;background: url("http://cba.itlike.com/public/mweb/static/background/user-header2.png");background-size: cover;display: flex;align-items: center;.head-img {width: 50px;height: 50px;border-radius: 50%;overflow: hidden;margin: 0 10px;img {width: 100%;height: 100%;object-fit: cover;}}
}
.info {.mobile {margin-bottom: 5px;color: #c59a46;font-size: 18px;font-weight: bold;}.vip {display: inline-block;background-color: #3c3c3c;padding: 3px 5px;border-radius: 5px;color: #e0d3b6;font-size: 14px;.van-icon {font-weight: bold;color: #ffb632;}}
}.my-asset {display: flex;padding: 20px 0;font-size: 14px;background-color: #fff;.asset-left {display: flex;justify-content: space-evenly;flex: 3;.asset-left-item {display: flex;flex-direction: column;justify-content: center;align-items: center;span:first-child {margin-bottom: 5px;color: #ff0000;font-size: 16px;}}}.asset-right {flex: 1;.asset-right-item {display: flex;flex-direction: column;justify-content: center;align-items: center;.van-icon {font-size: 24px;margin-bottom: 5px;}}}
}.order-navbar {display: flex;padding: 15px 0;margin: 10px;font-size: 14px;background-color: #fff;border-radius: 5px;.order-navbar-item {display: flex;flex-direction: column;justify-content: center;align-items: center;width: 25%;.van-icon {font-size: 24px;margin-bottom: 5px;}}
}.service {font-size: 14px;background-color: #fff;border-radius: 5px;margin: 10px;.title {height: 50px;line-height: 50px;padding: 0 15px;font-size: 16px;}.content {display: flex;justify-content: flex-start;flex-wrap: wrap;font-size: 14px;background-color: #fff;border-radius: 5px;.content-item {display: flex;flex-direction: column;justify-content: center;align-items: center;width: 25%;margin-bottom: 20px;.van-icon {font-size: 24px;margin-bottom: 5px;color: #ff3800;}}}
}.logout-btn {button {width: 60%;margin: 10px auto;display: block;font-size: 13px;color: #616161;border-radius: 9px;border: 1px solid #dcdcdc;padding: 7px 0;text-align: center;background-color: #fafafa;}
}
</style>

（2）个人中心 - 退出功能

1 注册点击事件

<button @click="logout">退出登录</button>

2 提供方法

methods: {logout () {this.$dialog.confirm({title: '温馨提示',message: '你确认要退出么？'}).then(() => {this.$store.dispatch('user/logout')}).catch(() => {})}
}actions: {logout (context) {context.commit('setUserInfo', {})context.commit('cart/setCartList', [], { root: true })}
},