温馨提示：这个黑马的视频在b占可以找到，里面有完整的教学过程

然后这个项目有完整的代码，我已经上传了，如果审核成功大家就可以看了，但是需要审核多久我也不是很确定

1.项目演示

2. 项目收获

3. 创建项目

4. 调整初始化目录

5. vant 组件库

6. 其他 Vue 组件库

7. vant 全部导入 和 按需导入

全部导入：

按需导入：

8. 项目中的 vw 适配

记得执行yarn serve

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

9. 路由设计配置

一：

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'import store from '@/store'Vue.use(VueRouter)const router = new VueRouter({routes: [{ path: '/login', component: Login },{path: '/',component: Layout,redirect: '/home',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，确认将来是哪个商品，路由参数中携带 id{ path: '/prodetail/:id', component: ProDetail },{ path: '/pay', component: Pay },{ path: '/myorder', component: MyOrder }]
})// 所有的路由在真正被访问到之前(解析渲染对应组件页面前)，都会先经过全局前置守卫
// 只有全局前置守卫放行了，才会到达对应的页面// 全局前置导航守卫
// to:   到哪里去，到哪去的完整路由信息对象 (路径，参数)
// from: 从哪里来，从哪来的完整路由信息对象 (路径，参数)
// next(): 是否放行
// (1) next()     直接放行，放行到to要去的路径
// (2) next(路径)  进行拦截，拦截到next里面配置的路径// 定义一个数组，专门用户存放所有需要权限访问的页面
const authUrls = ['/pay', '/myorder']router.beforeEach((to, from, next) => {// console.log(to, from, next)// 看 to.path 是否在 authUrls 中出现过if (!authUrls.includes(to.path)) {// 非权限页面，直接放行next()return}// 是权限页面，需要判断tokenconst token = store.getters.tokenif (token) {next()} else {next('/login')}
})export default router

二：

引入：

引用：

三

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'import store from '@/store'Vue.use(VueRouter)const router = new VueRouter({routes: [{ path: '/login', component: Login },{path: '/',component: Layout,//重定向redirect: '/home',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，确认将来是哪个商品，路由参数中携带 id{ path: '/prodetail/:id', component: ProDetail },{ path: '/pay', component: Pay },{ path: '/myorder', component: MyOrder }]
})// 所有的路由在真正被访问到之前(解析渲染对应组件页面前)，都会先经过全局前置守卫
// 只有全局前置守卫放行了，才会到达对应的页面// 全局前置导航守卫
// to:   到哪里去，到哪去的完整路由信息对象 (路径，参数)
// from: 从哪里来，从哪来的完整路由信息对象 (路径，参数)
// next(): 是否放行
// (1) next()     直接放行，放行到to要去的路径
// (2) next(路径)  进行拦截，拦截到next里面配置的路径// 定义一个数组，专门用户存放所有需要权限访问的页面
const authUrls = ['/pay', '/myorder']router.beforeEach((to, from, next) => {// console.log(to, from, next)// 看 to.path 是否在 authUrls 中出现过if (!authUrls.includes(to.path)) {// 非权限页面，直接放行next()return}// 是权限页面，需要判断tokenconst token = store.getters.tokenif (token) {next()} else {next('/login')}
})export default router

<template><div><!-- 二级路由出口：二级组件展示的位置 --><router-view></router-view><van-tabbar route active-color="#ee0a24" inactive-color="#000"><van-tabbar-item to="/home" icon="wap-home-o">首页</van-tabbar-item><van-tabbar-item to="/category" icon="apps-o">分类页</van-tabbar-item><van-tabbar-item to="/cart" icon="shopping-cart-o">购物车</van-tabbar-item><van-tabbar-item to="/user" icon="user-o">我的</van-tabbar-item></van-tabbar></div>
</template><script>
export default {name: 'LayoutIndex'
}
</script><style></style>

10. 登录页静态布局

10.1准备工作

// 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;
}

import Vue from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
import '@/utils/vant-ui'
import '@/styles/common.less'// import { Toast } from 'vant'
// Toast('嘿嘿，你好哇')
// 全部导入
// import Vant from 'vant'
// import 'vant/lib/index.css'
// // 插件安装初始化：内部会将所有的vant所有组件进行导入注册
// Vue.use(Vant)Vue.config.productionTip = falsenew Vue({router,store,render: h => h(App)
}).$mount('#app')

10.2静态布局编写

10.21头部组件

10.22通用样式的覆盖

把箭头变成灰黑色

// 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;
}// 添加导航的通用样式
.van-nav-bar {.van-nav-bar__arrow {color: #333;}
}

10.23其他静态结构的编写

<template><div class="login"><van-nav-bar title="会员登录" left-arrow @click-left="$router.go(-1)" /><div class="container"><div class="title"><h3>手机号登录</h3><p>未注册的手机号登录后将自动注册</p></div><div class="form"><div class="form-item"><input v-model="mobile" class="inp" maxlength="11" placeholder="请输入手机号码" type="text"></div><div class="form-item"><input v-model="picCode" class="inp" maxlength="5" placeholder="请输入图形验证码" type="text"><img v-if="picUrl" :src="picUrl" @click="getPicCode" alt=""></div><div class="form-item"><input v-model="msgCode" class="inp" placeholder="请输入短信验证码" type="text"><button @click="getCode">{{ second === totalSecond ? '获取验证码' : second + '秒后重新发送'}}</button></div></div><div @click="login" class="login-btn">登录</div></div></div>
</template><script>
import { codeLogin, getMsgCode, getPicCode } from '@/api/login'
// import { Toast } from 'vant'export default {name: 'LoginPage',data () {return {picKey: '', // 将来请求传递的图形验证码唯一标识picUrl: '', // 存储请求渲染的图片地址totalSecond: 60, // 总秒数second: 60, // 当前秒数，开定时器对 second--timer: null, // 定时器 idmobile: '', // 手机号picCode: '', // 用户输入的图形验证码msgCode: '' // 短信验证码}},async created () {this.getPicCode()},methods: {// 获取图形验证码async getPicCode () {const { data: { base64, key } } = await getPicCode()this.picUrl = base64 // 存储地址this.picKey = key // 存储唯一标识// Toast('获取图形验证码成功')// this.$toast('获取成功')// this.$toast.success('成功文案')},// 校验 手机号 和 图形验证码 是否合法// 通过校验，返回true// 不通过校验，返回falsevalidFn () {if (!/^1[3-9]\d{9}$/.test(this.mobile)) {this.$toast('请输入正确的手机号')return false}if (!/^\w{4}$/.test(this.picCode)) {this.$toast('请输入正确的图形验证码')return false}return true},// 获取短信验证码async getCode () {if (!this.validFn()) {// 如果没通过校验，没必要往下走了return}// 当前目前没有定时器开着，且 totalSecond 和 second 一致 (秒数归位) 才可以倒计时if (!this.timer && this.second === this.totalSecond) {// 发送请求// 预期：希望如果响应的status非200，最好抛出一个promise错误，await只会等待成功的promiseawait getMsgCode(this.picCode, this.picKey, this.mobile)this.$toast('短信发送成功，注意查收')// 开启倒计时this.timer = setInterval(() => {this.second--if (this.second <= 0) {clearInterval(this.timer)this.timer = null // 重置定时器 idthis.second = this.totalSecond // 归位}}, 1000)}},// 登录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}console.log('发送登录请求')const res = await codeLogin(this.mobile, this.msgCode)this.$store.commit('user/setUserInfo', res.data)this.$toast('登录成功')// 进行判断，看地址栏有无回跳地址// 1. 如果有   => 说明是其他页面，拦截到登录来的，需要回跳// 2. 如果没有 => 正常去首页const url = this.$route.query.backUrl || '/'this.$router.replace(url)}},// 离开页面清除定时器destroyed () {clearInterval(this.timer)}
}
</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>

11. request模块 - axios 封装

wiki - 智慧商城-实战项目

import store from '@/store'
import axios from 'axios'
import { Toast } from 'vant'// 创建 axios 实例，将来对创建出来的实例，进行自定义配置
// 好处：不会污染原始的 axios 实例
const instance = axios.create({baseURL: 'http://cba.itlike.com/public/index.php?s=/api/',timeout: 5000
})// 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) {// 在发送请求之前做些什么// 开启loading，禁止背景点击 (节流处理，防止多次无效触发)Toast.loading({message: '加载中...',forbidClick: true, // 禁止背景点击loadingType: 'spinner', // 配置loading图标duration: 0 // 不会自动消失})// 只要有token，就在请求时携带，便于请求需要授权的接口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)
})// 添加响应拦截器
instance.interceptors.response.use(function (response) {// 2xx 范围内的状态码都会触发该函数。// 对响应数据做点什么 (默认axios会多包装一层data，需要响应拦截器中处理一下)const res = response.dataif (res.status !== 200) {// 给错误提示, Toast 默认是单例模式，后面的 Toast调用了，会将前一个 Toast 效果覆盖// 同时只能存在一个 ToastToast(res.message)// 抛出一个错误的promisereturn Promise.reject(res.message)} else {// 正确情况，直接走业务核心逻辑，清除loading效果Toast.clear()}return res
}, function (error) {// 超出 2xx 范围的状态码都会触发该函数。// 对响应错误做点什么return Promise.reject(error)
})// 导出配置好的实例
export default instance

12. 图形验证码功能完成

<template><div class="login"><van-nav-bar title="会员登录" left-arrow @click-left="$router.go(-1)" /><div class="container"><div class="title"><h3>手机号登录</h3><p>未注册的手机号登录后将自动注册</p></div><div class="form"><div class="form-item"><input v-model="mobile" class="inp" maxlength="11" placeholder="请输入手机号码" type="text"></div><div class="form-item">//用户提交了也可以收集数据<input v-model="picCode" class="inp" maxlength="5" placeholder="请输入图形验证码" type="text"><img v-if="picUrl" :src="picUrl" @click="getPicCode" alt="">//点击图片，然后可以刷新</div><div class="form-item"><input v-model="msgCode" class="inp" placeholder="请输入短信验证码" type="text"><button @click="getCode">{{ second === totalSecond ? '获取验证码' : second + '秒后重新发送'}}</button></div></div><div @click="login" class="login-btn">登录</div></div></div>
</template><script>
import { codeLogin, getMsgCode, getPicCode } from '@/api/login'
// import { Toast } from 'vant'export default {name: 'LoginPage',data () {return {picKey: '', // 将来请求传递的图形验证码唯一标识picUrl: '', // 存储请求渲染的图片地址totalSecond: 60, // 总秒数second: 60, // 当前秒数，开定时器对 second--timer: null, // 定时器 idmobile: '', // 手机号picCode: '', // 用户输入的图形验证码msgCode: '' // 短信验证码}},async created () {this.getPicCode()},methods: {// 获取图形验证码async getPicCode () {const { data: { base64, key } } = await getPicCode()this.picUrl = base64 // 存储地址this.picKey = key // 存储唯一标识// Toast('获取图形验证码成功')// this.$toast('获取成功')// this.$toast.success('成功文案')},// 校验 手机号 和 图形验证码 是否合法// 通过校验，返回true// 不通过校验，返回falsevalidFn () {if (!/^1[3-9]\d{9}$/.test(this.mobile)) {this.$toast('请输入正确的手机号')return false}if (!/^\w{4}$/.test(this.picCode)) {this.$toast('请输入正确的图形验证码')return false}return true},// 获取短信验证码async getCode () {if (!this.validFn()) {// 如果没通过校验，没必要往下走了return}// 当前目前没有定时器开着，且 totalSecond 和 second 一致 (秒数归位) 才可以倒计时if (!this.timer && this.second === this.totalSecond) {// 发送请求// 预期：希望如果响应的status非200，最好抛出一个promise错误，await只会等待成功的promiseawait getMsgCode(this.picCode, this.picKey, this.mobile)this.$toast('短信发送成功，注意查收')// 开启倒计时this.timer = setInterval(() => {this.second--if (this.second <= 0) {clearInterval(this.timer)this.timer = null // 重置定时器 idthis.second = this.totalSecond // 归位}}, 1000)}},// 登录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}console.log('发送登录请求')const res = await codeLogin(this.mobile, this.msgCode)this.$store.commit('user/setUserInfo', res.data)this.$toast('登录成功')// 进行判断，看地址栏有无回跳地址// 1. 如果有   => 说明是其他页面，拦截到登录来的，需要回跳// 2. 如果没有 => 正常去首页const url = this.$route.query.backUrl || '/'this.$router.replace(url)}},// 离开页面清除定时器destroyed () {clearInterval(this.timer)}
}
</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>

13. api 接口模块 -封装图片验证码接口

这里发请求：

// 此处用于存放所有登录相关的接口请求
import request from '@/utils/request'// 1. 获取图形验证码
export const getPicCode = () => {return request.get('/captcha/image')
}// 2. 获取短信验证码
export const getMsgCode = (captchaCode, captchaKey, mobile) => {return request.post('/captcha/sendSmsCaptcha', {form: {captchaCode,captchaKey,mobile}})
}// 3. 登录接口
export const codeLogin = (mobile, smsCode) => {return request.post('/passport/login', {form: {isParty: false,partyData: {},mobile,smsCode}})
}

按需导出

函数调用

14. Toast 轻提示

使用方式1：导入调用

组件内可以调用

非组件内也可以调用

使用方式2：this直接调用

15. 短信验证倒计时

15.1点击按钮，实现倒计时效果

index.vue

15.2验证码请求校验处理

15.3封装接口，请求获取验证码

16. 登录功能

17. 响应拦截器统一处理错误提示

utils/request.js

18. 登录权证信息存储

1.新建 vuex user 模块 store/modules/user.js

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

2.挂载到 vuex 上

3.提供mutation

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

4.页面中 commit 调用

19. storage存储模块 -vuex 持久化处理

// 约定一个通用的键名
const INFO_KEY = 'hm_shopping_info'
const HISTORY_KEY = 'hm_history_list'// 获取个人信息
export const getInfo = () => {const defaultObj = { token: '', userId: '' }const result = localStorage.getItem(INFO_KEY)//如果没有结果，就默认给一个默认值return result ? JSON.parse(result) : defaultObj
}// 设置个人信息
export const setInfo = (obj) => {localStorage.setItem(INFO_KEY, JSON.stringify(obj))//obj是一个对象，对象不能往本地存，应该转化成字符串
}// 移除个人信息
export const removeInfo = () => {localStorage.removeItem(INFO_KEY)
}

import { getInfo, setInfo } from '@/utils/storage'export default {namespaced: true,state () {return {// 个人权证相关userInfo: getInfo()}},mutations: {// 所有mutations的第一个参数，都是statesetUserInfo (state, obj) {state.userInfo = obj//存入vues的同时，传入一份在本地setInfo(obj)}},actions: {logout (context) {// 个人信息要重置context.commit('setUserInfo', {})// 购物车信息要重置 (跨模块调用 mutation)  cart/setCartListcontext.commit('cart/setCartList', [], { root: true })}},getters: {}
}

20. 添加请求 loading 效果

import store from '@/store'
import axios from 'axios'
import { Toast } from 'vant'// 创建 axios 实例，将来对创建出来的实例，进行自定义配置
// 好处：不会污染原始的 axios 实例
const instance = axios.create({baseURL: 'http://cba.itlike.com/public/index.php?s=/api/',timeout: 5000
})// 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) {// 在发送请求之前做些什么// 开启loading，禁止背景点击 (节流处理，防止多次无效触发)Toast.loading({message: '加载中...',forbidClick: true, // 禁止背景点击loadingType: 'spinner', // 配置loading图标duration: 0 // loading图标不会自动消失})// 只要有token，就在请求时携带，便于请求需要授权的接口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)
})// 添加响应拦截器
instance.interceptors.response.use(function (response) {// 2xx 范围内的状态码都会触发该函数。// 对响应数据做点什么 (默认axios会多包装一层data，需要响应拦截器中处理一下)const res = response.dataif (res.status !== 200) {// 给错误提示, Toast 默认是单例模式，后面的 Toast调用了，会将前一个 Toast 效果覆盖// 同时只能存在一个 ToastToast(res.message)// 抛出一个错误的promisereturn Promise.reject(res.message)} else {// 正确情况，直接走业务核心逻辑，清除loading效果Toast.clear()}return res
}, function (error) {// 超出 2xx 范围的状态码都会触发该函数。// 对响应错误做点什么return Promise.reject(error)
})// 导出配置好的实例
export default instance

21. 页面访问拦截

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'import store from '@/store'Vue.use(VueRouter)const router = new VueRouter({routes: [{ path: '/login', component: Login },{path: '/',component: Layout,redirect: '/home',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，确认将来是哪个商品，路由参数中携带 id{ path: '/prodetail/:id', component: ProDetail },{ path: '/pay', component: Pay },{ path: '/myorder', component: MyOrder }]
})// 所有的路由在真正被访问到之前(解析渲染对应组件页面前)，都会先经过全局前置守卫
// 只有全局前置守卫放行了，才会到达对应的页面// 全局前置导航守卫
// to:   到哪里去，到哪去的完整路由信息对象 (路径，参数)
// from: 从哪里来，从哪来的完整路由信息对象 (路径，参数)
// next(): 是否放行
// (1) next()     直接放行，放行到to要去的路径
// (2) next(路径)  进行拦截，拦截到next里面配置的路径// 定义一个数组，专门用户存放所有需要权限访问的页面
const authUrls = ['/pay', '/myorder']router.beforeEach((to, from, next) => {// console.log(to, from, next)// 看 to.path 是否在 authUrls 中出现过if (!authUrls.includes(to.path)) {// 非权限页面，直接放行next()return}// 是权限页面，需要判断tokenconst token = store.getters.tokenif (token) {next()} else {next('/login')}
})export default router

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) {return state.user.userInfo.token}},modules: {user,cart}
})

22. 首页 -静态结构准备 & 动态渲染

静态结构：

<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="$router.push('/search')"/><!-- 轮播图 --><van-swipe class="my-swipe" :autoplay="3000" indicator-color="white"><van-swipe-item v-for="item in bannerList" :key="item.imgUrl"><img :src="item.imgUrl" alt=""></van-swipe-item></van-swipe><!-- 导航 --><van-grid column-num="5" icon-size="40"><van-grid-itemv-for="item in navList" :key="item.imgUrl":icon="item.imgUrl"text="新品首发"@click="$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 proList" :key="item.goods_id" :item="item"></GoodsItem></div></div></div>
</template><script>
import GoodsItem from '@/components/GoodsItem.vue'
import { getHomeData } from '@/api/home'
export default {name: 'HomePage',components: {GoodsItem},data () {return {bannerList: [], // 轮播navList: [], // 导航proList: [] // 商品}},async created () {const { data: { pageData } } = await getHomeData()this.bannerList = pageData.items[1].datathis.navList = pageData.items[3].datathis.proList = pageData.items[6].dataconsole.log(this.proList)}
}
</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>

<template><div v-if="item.goods_id" 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 {name: 'GoodsItem',props: {item: {type: Object,default: () => {return {}}}}
}
</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>

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

封装接口

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

页面调用

<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="$router.push('/search')"/><!-- 轮播图 --><van-swipe class="my-swipe" :autoplay="3000" indicator-color="white"><van-swipe-item v-for="item in bannerList" :key="item.imgUrl"><img :src="item.imgUrl" alt=""></van-swipe-item></van-swipe><!-- 导航 --><van-grid column-num="5" icon-size="40"><van-grid-itemv-for="item in navList" :key="item.imgUrl":icon="item.imgUrl"text="新品首发"@click="$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 proList" :key="item.goods_id" :item="item"></GoodsItem></div></div></div>
</template><script>
import GoodsItem from '@/components/GoodsItem.vue'
import { getHomeData } from '@/api/home'
export default {name: 'HomePage',components: {GoodsItem},data () {return {bannerList: [], // 轮播navList: [], // 导航proList: [] // 商品}},async created () {const { data: { pageData } } = await getHomeData()this.bannerList = pageData.items[1].datathis.navList = pageData.items[3].datathis.proList = pageData.items[6].dataconsole.log(this.proList)}
}
</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>

动态渲染

<!-- 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">//:key="item.goods_id"避免重名就可以了//要传的是整个item对象，完全可以父传子的方式往下传进行渲染，一旦传了就可以通过item来接收<GoodsItem v-for="item in proList"  :item="item" :key="item.goods_id"></GoodsItem></div>
</div>

用props来接收

<template><div v-if="item.goods_id" 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 {name: 'GoodsItem',props: {item: {type: Object,//是个对象类的，这个default（默认值）就得是个函数，在函数中的返回值就是他的默认值default: () => {return {}}}}
}
</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>

问题1：

问题2：

加这个item.goods_id}的原因

<div v-if="item.goods_id" class="goods-item" @click="$router.push(`/prodetail/${item.goods_id}`)"

点击进去跳转的时候没有携带任何id

23. 搜索 -历史记录管理

1.搜索历史基本渲染

<template><div class="search"><van-nav-bar title="商品搜索" left-arrow @click-left="$router.go(-1)" /><van-search v-model="search" show-action placeholder="请输入搜索关键词" clearable><template #action><div @click="goSearch(search)">搜索</div></template></van-search><!-- 搜索历史 --><div class="search-history" v-if="history.length > 0"><div class="title"><span>最近搜索</span><van-icon @click="clear" name="delete-o" size="16" /></div><div class="list"><div v-for="item in history" :key="item" class="list-item" @click="goSearch(item)">{{ item }}</div></div></div></div>
</template><script>
import { getHistoryList, setHistoryList } from '@/utils/storage'
export default {name: 'SearchIndex',data () {return {search: '', // 输入框的内容history: getHistoryList() // 历史记录}},methods: {goSearch (key) {// console.log('进行了搜索，搜索历史要更新', key)const index = this.history.indexOf(key)if (index !== -1) {// 存在相同的项，将原有关键字移除// splice(从哪开始, 删除几个, 项1, 项2)this.history.splice(index, 1)}this.history.unshift(key)setHistoryList(this.history)// 跳转到搜索列表页this.$router.push(`/searchlist?search=${key}`)},clear () {this.history = []setHistoryList([])}}
}
</script><style lang="less" scoped>
.search {.searchBtn {background-color: #fa2209;color: #fff;}::v-deep .van-search__action {background-color: #c21401;color: #fff;padding: 0 20px;border-radius: 0 5px 5px 0;margin-right: 10px;}::v-deep .van-icon-arrow-left {color: #333;}.title {height: 40px;line-height: 40px;font-size: 14px;display: flex;justify-content: space-between;align-items: center;padding: 0 15px;}.list {display: flex;justify-content: flex-start;flex-wrap: wrap;padding: 0 10px;gap: 5%;}.list-item {width: 30%;text-align: center;padding: 7px;line-height: 15px;border-radius: 50px;background: #fff;font-size: 13px;border: 1px solid #efefef;overflow: hidden;white-space: nowrap;text-overflow: ellipsis;margin-bottom: 10px;}
}
</style>

2.点击搜索，添加历史

<template><div class="search"><van-nav-bar title="商品搜索" left-arrow @click-left="$router.go(-1)" /><van-search v-model="search" show-action placeholder="请输入搜索关键词" clearable><template #action><div @click="goSearch(search)">搜索</div></template></van-search><!-- 搜索历史 --><div class="search-history" v-if="history.length > 0"><div class="title"><span>最近搜索</span><van-icon @click="clear" name="delete-o" size="16" /></div><div class="list"><div v-for="item in history" :key="item" class="list-item" @click="goSearch(item)">{{ item }}</div></div></div></div>
</template><script>
import { getHistoryList, setHistoryList } from '@/utils/storage'
export default {name: 'SearchIndex',data () {return {search: '', // 输入框的内容history: getHistoryList() // 历史记录}},methods: {goSearch (key) {// console.log('进行了搜索，搜索历史要更新', key)const index = this.history.indexOf(key)//查找这个key在这个数组中的下标，如查到了便于删除//indexOf 方法用于查找一个元素在数组中的位置，//如果元素存在，会返回该元素的索引（索引从 0 开始）；如果不存在，则返回 -1。if (index !== -1) {// 存在相同的项，将原有关键字移除// splice(从哪开始, 删除几个, 项1, 项2)this.history.splice(index, 1)}this.history.unshift(key)setHistoryList(this.history)// 跳转到搜索列表页this.$router.push(`/searchlist?search=${key}`)},clear () {this.history = []setHistoryList([])}}
}
</script><style lang="less" scoped>
.search {.searchBtn {background-color: #fa2209;color: #fff;}::v-deep .van-search__action {background-color: #c21401;color: #fff;padding: 0 20px;border-radius: 0 5px 5px 0;margin-right: 10px;}::v-deep .van-icon-arrow-left {color: #333;}.title {height: 40px;line-height: 40px;font-size: 14px;display: flex;justify-content: space-between;align-items: center;padding: 0 15px;}.list {display: flex;justify-content: flex-start;flex-wrap: wrap;padding: 0 10px;gap: 5%;}.list-item {width: 30%;text-align: center;padding: 7px;line-height: 15px;border-radius: 50px;background: #fff;font-size: 13px;border: 1px solid #efefef;overflow: hidden;white-space: nowrap;text-overflow: ellipsis;margin-bottom: 10px;}
}
</style>

3.清空历史

<template><div class="search"><van-nav-bar title="商品搜索" left-arrow @click-left="$router.go(-1)" /><van-search v-model="search" show-action placeholder="请输入搜索关键词" clearable><template #action><div @click="goSearch(search)">搜索</div></template></van-search><!-- 搜索历史 --><div class="search-history" v-if="history.length > 0"><div class="title"><span>最近搜索</span><van-icon @click="clear" name="delete-o" size="16" /></div><div class="list"><div v-for="item in history" :key="item" class="list-item" @click="goSearch(item)">{{ item }}</div></div></div></div>
</template><script>
import { getHistoryList, setHistoryList } from '@/utils/storage'
export default {name: 'SearchIndex',data () {return {search: '', // 输入框的内容history: getHistoryList() // 历史记录}},methods: {goSearch (key) {// console.log('进行了搜索，搜索历史要更新', key)const index = this.history.indexOf(key)//查找这个key在这个数组中的下标，如查到了便于删除//indexOf 方法用于查找一个元素在数组中的位置，//如果元素存在，会返回该元素的索引（索引从 0 开始）；如果不存在，则返回 -1。if (index !== -1) {// 存在相同的项，将原有关键字移除// splice(从哪开始, 删除几个, 项1, 项2)this.history.splice(index, 1)}this.history.unshift(key)setHistoryList(this.history)// 跳转到搜索列表页this.$router.push(`/searchlist?search=${key}`)},clear () {this.history = []setHistoryList([])}}
}
</script><style lang="less" scoped>
.search {.searchBtn {background-color: #fa2209;color: #fff;}::v-deep .van-search__action {background-color: #c21401;color: #fff;padding: 0 20px;border-radius: 0 5px 5px 0;margin-right: 10px;}::v-deep .van-icon-arrow-left {color: #333;}.title {height: 40px;line-height: 40px;font-size: 14px;display: flex;justify-content: space-between;align-items: center;padding: 0 15px;}.list {display: flex;justify-content: flex-start;flex-wrap: wrap;padding: 0 10px;gap: 5%;}.list-item {width: 30%;text-align: center;padding: 7px;line-height: 15px;border-radius: 50px;background: #fff;font-size: 13px;border: 1px solid #efefef;overflow: hidden;white-space: nowrap;text-overflow: ellipsis;margin-bottom: 10px;}
}
</style>

4.持久化

<template><div class="search"><van-nav-bar title="商品搜索" left-arrow @click-left="$router.go(-1)" /><van-search v-model="search" show-action placeholder="请输入搜索关键词" clearable><template #action><div @click="goSearch(search)">搜索</div></template></van-search><!-- 搜索历史 --><div class="search-history" v-if="history.length > 0"><div class="title"><span>最近搜索</span><van-icon @click="clear" name="delete-o" size="16" /></div><div class="list"><div v-for="item in history" :key="item" class="list-item" @click="goSearch(item)">{{ item }}</div></div></div></div>
</template><script>
import { getHistoryList, setHistoryList } from '@/utils/storage'
export default {name: 'SearchIndex',data () {return {search: '', // 输入框的内容//往本地去读history: getHistoryList() // 历史记录}},methods: {goSearch (key) {// console.log('进行了搜索，搜索历史要更新', key)const index = this.history.indexOf(key)//查找这个key在这个数组中的下标，如查到了便于删除//indexOf 方法用于查找一个元素在数组中的位置，//如果元素存在，会返回该元素的索引（索引从 0 开始）；如果不存在，则返回 -1。if (index !== -1) {// 存在相同的项，将原有关键字移除// splice(从哪开始, 删除几个, 项1, 项2)this.history.splice(index, 1)}this.history.unshift(key)//往本地去存,持久化到本地setHistoryList(this.history)// 跳转到搜索列表页this.$router.push(`/searchlist?search=${key}`)},clear () {this.history = []setHistoryList([])}}
}
</script><style lang="less" scoped>
.search {.searchBtn {background-color: #fa2209;color: #fff;}::v-deep .van-search__action {background-color: #c21401;color: #fff;padding: 0 20px;border-radius: 0 5px 5px 0;margin-right: 10px;}::v-deep .van-icon-arrow-left {color: #333;}.title {height: 40px;line-height: 40px;font-size: 14px;display: flex;justify-content: space-between;align-items: center;padding: 0 15px;}.list {display: flex;justify-content: flex-start;flex-wrap: wrap;padding: 0 10px;gap: 5%;}.list-item {width: 30%;text-align: center;padding: 7px;line-height: 15px;border-radius: 50px;background: #fff;font-size: 13px;border: 1px solid #efefef;overflow: hidden;white-space: nowrap;text-overflow: ellipsis;margin-bottom: 10px;}
}
</style>

5.跳转

问题1：

<van-search v-model="search" show-action placeholder="请输入搜索关键词" clearable>

在这里绑定，是为了实时拿到搜索框的值，通过data能快速拿到搜索框的值

24. 搜索列表 -静态布局 & 动态渲染

商品搜索页

代码

import request from '@/utils/request'// 获取搜索商品列表的数据
export const getProList = (obj) => {const { categoryId, goodsName, page } = objreturn request.get('/goods/list', {params: {categoryId,goodsName,page}})
}// 获取商品详情数据
export const getProDetail = (goodsId) => {return request.get('/goods/detail', {params: {goodsId}})
}// 获取商品评价
export const getProComments = (goodsId, limit) => {return request.get('/comment/listRows', {params: {goodsId,limit}})
}

<template><div class="search"><van-nav-bar fixed title="商品列表" left-arrow @click-left="$router.go(-1)" /><van-searchreadonlyshape="round"background="#ffffff":value="querySearch || '搜索商品'"show-action@click="$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 proList" :key="item.goods_id" :item="item"></GoodsItem></div></div>
</template><script>
import GoodsItem from '@/components/GoodsItem.vue'
import { getProList } from '@/api/product'
export default {name: 'SearchIndex',components: {GoodsItem},computed: {// 获取地址栏的搜索关键字querySearch () {return this.$route.query.search}},data () {return {page: 1,proList: []}},async created () {const { data: { list } } = await getProList({categoryId: this.$route.query.categoryId,goodsName: this.querySearch,page: this.page})this.proList = list.data}
}
</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>

效果：

问题1：

问题2：

分类搜索页

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

<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>

25. 商品详情-静态布局 & 渲染

商品详情页的渲染：

1.静态结构

<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>

2.封装接口

import request from '@/utils/request'// 获取搜索商品列表的数据
export const getProList = (obj) => {const { categoryId, goodsName, page } = objreturn request.get('/goods/list', {params: {categoryId,goodsName,page}})
}// 获取商品详情数据
export const getProDetail = (goodsId) => {return request.get('/goods/detail', {params: {goodsId}})
}// 获取商品评价
export const getProComments = (goodsId, limit) => {return request.get('/comment/listRows', {params: {goodsId,limit}})
}

3.动态路由传参

3.1动态路由参数，获取商品 id

3.2一进入页面发送请求，获取商品详情数据

data () {return {images: [],current: 0,detail: {},total: 0, // 评价总数commentList: [], // 评价列表defaultImg,showPannel: false, // 控制弹层的显示隐藏mode: 'cart', // 标记弹层状态addCount: 1, // 数字框绑定的数据cartTotal: 0 // 购物车角标}},computed: {goodsId () {return this.$route.params.id}},created () {this.getDetail()this.getComments()},methods: {onChange (index) {this.current = index},async getDetail () {const { data: { detail } } = await getProDetail(this.goodsId)this.detail = detailthis.images = detail.goods_imagesconsole.log(this.images)},

3.3动态渲染

<template><div class="prodetail"><van-nav-bar fixed title="商品详情页" left-arrow @click-left="$router.go(-1)" /><van-swipe :autoplay="4000" @change="onChange"><van-swipe-item v-for="(image, index) in images" :key="index"><img :src="image.external_url" /></van-swipe-item><template #indicator><div class="custom-indicator">{{ current + 1 }} / {{ images.length }}</div></template></van-swipe><!-- 商品说明 --><div class="info"><div class="title"><div class="price"><span class="now">￥{{ detail.goods_price_min }}</span><span class="oldprice">￥{{ detail.goods_price_max }}</span></div><div class="sellcount">已售 {{ detail.goods_sales }} 件</div></div><div class="msg text-ellipsis-2">{{ detail.goods_name }}</div><div class="service"><div class="left-words"><span><van-icon name="passed" />七天无理由退货</span><span><van-icon name="passed" />48小时发货</span></div><div class="right-icon"><van-icon name="arrow" /></div></div></div><!-- 商品评价 --><div class="comment"><div class="comment-title"><div class="left">商品评价 ({{ total }}条)</div><div class="right">查看更多 <van-icon name="arrow" /> </div></div><div class="comment-list"><div class="comment-item" v-for="item in commentList" :key="item.comment_id"><div class="top"><img :src="item.user.avatar_url || defaultImg" alt=""><div class="name">{{ item.user.nick_name }}</div><van-rate :size="16" :value="item.score / 2" color="#ffd21e" void-icon="star" void-color="#eee"/></div><div class="content">{{ item.content }}</div><div class="time">{{ item.create_time }}</div></div></div></div><!-- 商品描述 --><div class="desc" v-html="detail.content"></div><!-- 底部 --><div class="footer"><div @click="$router.push('/')" class="icon-home"><van-icon name="wap-home-o" /><span>首页</span></div><div @click="$router.push('/cart')" class="icon-cart"><span v-if="cartTotal > 0" class="num">{{ cartTotal }}</span><van-icon name="shopping-cart-o" /><span>购物车</span></div><div @click="addFn" class="btn-add">加入购物车</div><div @click="buyNow" class="btn-buy">立刻购买</div></div><!-- 加入购物车/立即购买 公用的弹层 --><van-action-sheet v-model="showPannel" :title="mode === 'cart' ? '加入购物车' : '立刻购买'"><div class="product"><div class="product-title"><div class="left"><img :src="detail.goods_image" alt=""></div><div class="right"><div class="price"><span>¥</span><span class="nowprice">{{ detail.goods_price_min }}</span></div><div class="count"><span>库存</span><span>{{ detail.stock_total }}</span></div></div></div><div class="num-box"><span>数量</span><!-- v-model 本质上 :value 和 @input 的简写 --><CountBox v-model="addCount"></CountBox></div><!-- 有库存才显示提交按钮 --><div class="showbtn" v-if="detail.stock_total > 0"><div class="btn" v-if="mode === 'cart'" @click="addCart">加入购物车</div><div class="btn now" v-else @click="goBuyNow">立刻购买</div></div><div class="btn-none" v-else>该商品已抢完</div></div></van-action-sheet></div>
</template><script>
import { getProComments, getProDetail } from '@/api/product'
import defaultImg from '@/assets/default-avatar.png'
import CountBox from '@/components/CountBox.vue'
import { addCart } from '@/api/cart'
import loginConfirm from '@/mixins/loginConfirm'export default {name: 'ProDetail',mixins: [loginConfirm],components: {CountBox},data () {return {images: [],current: 0,detail: {},total: 0, // 评价总数commentList: [], // 评价列表defaultImg,showPannel: false, // 控制弹层的显示隐藏mode: 'cart', // 标记弹层状态addCount: 1, // 数字框绑定的数据cartTotal: 0 // 购物车角标}},computed: {goodsId () {return this.$route.params.id}},created () {this.getDetail()this.getComments()},methods: {onChange (index) {this.current = index},async getDetail () {const { data: { detail } } = await getProDetail(this.goodsId)this.detail = detailthis.images = detail.goods_imagesconsole.log(this.images)},async getComments () {const { data: { list, total } } = await getProComments(this.goodsId, 3)this.commentList = listthis.total = total},addFn () {this.mode = 'cart'this.showPannel = true},buyNow () {this.mode = 'buyNow'this.showPannel = true},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.$toast('加入购物车成功')this.showPannel = false},goBuyNow () {if (this.loginConfirm()) {return}this.$router.push({path: '/pay',query: {mode: 'buyNow',goodsId: this.goodsId,goodsSkuId: this.detail.skuList[0].goods_sku_id,goodsNum: this.addCount}})}}
}
</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;
}// 弹层的样式
.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;}
}.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%;}
}
</style>

问题1：

直接渲染出现问题

得这样子

商品评价：

接口：

import request from '@/utils/request'// 获取搜索商品列表的数据
export const getProList = (obj) => {const { categoryId, goodsName, page } = objreturn request.get('/goods/list', {params: {categoryId,goodsName,page}})
}// 获取商品详情数据
export const getProDetail = (goodsId) => {return request.get('/goods/detail', {params: {goodsId}})
}// 获取商品评价
export const getProComments = (goodsId, limit) => {return request.get('/comment/listRows', {params: {goodsId,limit}})
}

<template><!-- 商品评价 --><div class="comment"><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>
</template><script>
import { getProComments, getProDetail } from '@/api/product'
import defaultImg from '@/assets/default-avatar.png'
import CountBox from '@/components/CountBox.vue'
import { addCart } from '@/api/cart'
import loginConfirm from '@/mixins/loginConfirm'export default {name: 'ProDetail',mixins: [loginConfirm],components: {CountBox},data () {return {images: [],current: 0,detail: {},total: 0, // 评价总数commentList: [], // 评价列表defaultImg,showPannel: false, // 控制弹层的显示隐藏mode: 'cart', // 标记弹层状态addCount: 1, // 数字框绑定的数据cartTotal: 0 // 购物车角标}},computed: {goodsId () {return this.$route.params.id}},created () {this.getDetail()this.getComments()},methods: {onChange (index) {this.current = index},async getDetail () {const { data: { detail } } = await getProDetail(this.goodsId)this.detail = detailthis.images = detail.goods_imagesconsole.log(this.images)},async getComments () {const { data: { list, total } } = await getProComments(this.goodsId, 3)this.commentList = listthis.total = total}
}
</script>

26. 加入购物车 -唤起弹层

加深理解

代码区

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

<!-- 加入购物车/立即购买 公用的弹层 --><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><!-- v-model 本质上 :value 和 @input 的简写 --><CountBox v-model="addCount"></CountBox></div><!-- 有库存才显示提交按钮 --><div class="showbtn" v-if="detail.stock_total > 0"><div class="btn" v-if="mode === 'cart'" @click="addCart">加入购物车</div><div class="btn now" v-else @click="goBuyNow">立刻购买</div></div><div class="btn-none" v-else>该商品已抢完</div></div></van-action-sheet></div><script>
import { getProComments, getProDetail } from '@/api/product'
import defaultImg from '@/assets/default-avatar.png'
import CountBox from '@/components/CountBox.vue'
import { addCart } from '@/api/cart'
import loginConfirm from '@/mixins/loginConfirm'export default {name: 'ProDetail',mixins: [loginConfirm],components: {CountBox},data () {return {images: [],current: 0,detail: {},total: 0, // 评价总数commentList: [], // 评价列表defaultImg,showPannel: false, // 控制弹层的显示隐藏mode: 'cart', // 标记弹层状态addCount: 1, // 数字框绑定的数据cartTotal: 0 // 购物车角标}},computed: {goodsId () {return this.$route.params.id}},created () {this.getDetail()this.getComments()},methods: {onChange (index) {this.current = index},async getDetail () {const { data: { detail } } = await getProDetail(this.goodsId)this.detail = detailthis.images = detail.goods_imagesconsole.log(this.images)},async getComments () {const { data: { list, total } } = await getProComments(this.goodsId, 3)this.commentList = listthis.total = total},addFn () {this.mode = 'cart'this.showPannel = true},buyNow () {this.mode = 'buyNow'this.showPannel = true},async addCart () {if (this.loginConfirm()) {return}const { data } = await addCart(this.goodsId, this.addCount, this.detail.skuList[0].goods_sku_id)this.cartTotal = data.cartTotalthis.$toast('加入购物车成功')this.showPannel = false},}<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;
}// 弹层的样式
.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;}
}

效果图

加入style之后

27. 加入购物车 -封装数字框组件

<!-- 加入购物车/立即购买 公用的弹层 --><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><!-- v-model 本质上 :value 和 @input 的简写 --><CountBox v-model="addCount"></CountBox></div><script>import CountBox from '@/components/CountBox.vue'export default {name: 'ProDetail',mixins: [loginConfirm],components: {CountBox},data () {return {addCount: 1...}},
}</script>

<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>

问题1：

28. 加入购物车 -判断 token 添加登录提示

push改为replace

加强理解

问题1：

问题2：

里面的push换成replace

29. 加入购物车 -封装接口进行请求

1.封装接口

import request from '@/utils/request'// 加入购物车
// goodsId    => 商品id     iphone8
// goodsSkuId => 商品规格id  红色的iphone8  粉色的iphone8
export const addCart = (goodsId, goodsNum, goodsSkuId) => {return request.post('/cart/add', {goodsId,goodsNum,goodsSkuId})
}

2.请求拦截器

3.页面调用请求

4.图标

5.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%;}

问题1：

这个skuList.goods_sku_id是商品规格，不过在这个项目中，商品规格默认只有一种

问题2：

所有的请求在发出之前，都会先经过咱们的请求拦截器，我们可以在请求拦截器当中，统一的携带就可以了，找到请求拦截器

30. 购物车模块

1.基本静态结构

静态结构

<template><div class="cart"><van-nav-bar title="购物车" fixed /><div v-if="isLogin && cartList.length > 0"><!-- 购物车开头 --><div class="cart-title"><span class="all">共<i>{{ cartTotal }}</i>件商品</span><span class="edit" @click="isEdit = !isEdit"><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 cartList" :key="item.goods_id"><van-checkbox @click="toggleCheck(item.goods_id)"  :value="item.isChecked"></van-checkbox><div class="show"><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><!-- 既希望保留原本的形参，又需要通过调用函数传参 => 箭头函数包装一层 --><CountBox @input="(value) => changeCount(value, item.goods_id, item.goods_sku_id)" :value="item.goods_num"></CountBox></span></div></div></div><div class="footer-fixed"><div @click="toggleAllCheck" class="all-check"><van-checkbox :value="isAllChecked"  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="!isEdit" class="goPay" :class="{ disabled: selCount === 0 }"  @click="goPay">结算({{ selCount }})</div><div v-else @click="handleDel" class="delete" :class="{ disabled: selCount === 0 }" >删除</div></div></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="$router.push('/')">去逛逛</div></div></div>
</template><script>
import CountBox from '@/components/CountBox.vue'
import { mapGetters, mapState } from 'vuex'
export default {name: 'CartPage',components: {CountBox},data () {return {isEdit: false}},computed: {...mapState('cart', ['cartList']),...mapGetters('cart', ['cartTotal', 'selCartList', 'selCount', 'selPrice', 'isAllChecked']),isLogin () {return this.$store.getters.token}},created () {// 必须是登录过的用户，才能用户购物车列表if (this.isLogin) {this.$store.dispatch('cart/getCartAction')}},methods: {toggleCheck (goodsId) {this.$store.commit('cart/toggleCheck', goodsId)},toggleAllCheck () {this.$store.commit('cart/toggleAllCheck', !this.isAllChecked)},changeCount (goodsNum, goodsId, goodsSkuId) {// console.log(goodsNum, goodsId, goodsSkuId)// 调用 vuex 的 action，进行数量的修改this.$store.dispatch('cart/changeCountAction', {goodsNum,goodsId,goodsSkuId})},async handleDel () {if (this.selCount === 0) returnawait this.$store.dispatch('cart/delSelect')this.isEdit = false},goPay () {// 判断有没有选中商品if (this.selCount > 0) {// 有选中的 商品 才进行结算跳转this.$router.push({path: '/pay',query: {mode: 'cart',cartIds: this.selCartList.map(item => item.id).join(',') // 'cartId,cartId,cartId'}})}}},watch: {isEdit (value) {if (value) {this.$store.commit('cart/toggleAllCheck', false)} else {this.$store.commit('cart/toggleAllCheck', true)}}}
}
</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;}}}}.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;}
}
</style>

然后加入跳转

需要用到vant组件库

小小修改

<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>

2.构建vuex cart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) {return 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

export default {namespaced: true,state () {return {cartList: []}},mutations: {setCartList (state, newList) {state.cartList = newList},
},
actions: {async getCartAction (context) {const { data } = await getCartList()// 后台返回的数据中，不包含复选框的选中状态，为了实现将来的功能// 需要手动维护数据，给每一项，添加一个 isChecked 状态 (标记当前商品是否选中)data.list.forEach(item => {item.isChecked = true})context.commit('setCartList', data.list)}
},getters: {}
}

判断用户是否登录

==

加深理解

都要在head中传递，但是已经在请求拦截器中统一携带了这2个参数，所以只用调接口就可以了

问题1：

3.基于数据动态渲染购物车列表

3.1数据映射到页面

要做动态渲染，然后数据告诉你了在vuex,在页面当中想要拿到这个state中数据，想在cart.vue拿到数据，提供对应的计算属性

3.2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>

问题1：

不能是v-model

应该是

因为v-model是直接跟vues里面的数据双向绑定，但是这里只是单纯的渲染，任何一个组件随便改就乱了

4.封装getter实现动态设计

4.1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)//.toFixed(2)保留2位小数}
}

4.2这些计算属性想在页面应用

4.3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>

4.4优化

问题1：

如何在getter属性中访问呢getter

5.全选反选功能

5.1可以点击小选

5.2点击小选可以控制大选+点击大选可以控制全部小选（青色)

import { changeCount, delSelect, getCartList } from '@/api/cart'
import { Toast } from 'vant'export default {namespaced: true,state () {return {cartList: []}},mutations: {toggleAllCheck (state, flag) {state.cartList.forEach(item => {item.isChecked = flag})},},getters: {// 求所有的商品累加总数cartTotal (state) {return state.cartList.reduce((sum, item) => sum + item.goods_num, 0)},// 选中的商品项selCartList (state) {return state.cartList.filter(item => item.isChecked)},// 选中的总数selCount (state, getters) {return getters.selCartList.reduce((sum, item) => sum + item.goods_num, 0)},// 选中的总价selPrice (state, getters) {return getters.selCartList.reduce((sum, item) => {return sum + item.goods_num * item.goods.goods_price_min}, 0).toFixed(2)},// 是否全选isAllChecked (state) {return state.cartList.every(item => item.isChecked)}}
}

<template><div class="footer-fixed"><div @click="toggleAllCheck" class="all-check"><van-checkbox :value="isAllChecked"  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="!isEdit" class="goPay" :class="{ disabled: selCount === 0 }"  @click="goPay">结算({{ selCount }})</div><div v-else @click="handleDel" class="delete" :class="{ disabled: selCount === 0 }" >删除</div></div></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="$router.push('/')">去逛逛</div></div></div>
</template><script>
import CountBox from '@/components/CountBox.vue'
import { mapGetters, mapState } from 'vuex'
export default {name: 'CartPage',components: {CountBox},data () {return {isEdit: false}},computed: {...mapState('cart', ['cartList']),...mapGetters('cart', ['cartTotal',  'selCount', 'selPrice', 'isAllChecked']),isLogin () {return this.$store.getters.token}},created () {// 必须是登录过的用户，才能用户购物车列表if (this.isLogin) {this.$store.dispatch('cart/getCartAction')}},methods: {toggleCheck (goodsId) {this.$store.commit('cart/toggleCheck', goodsId)},toggleAllCheck () {this.$store.commit('cart/toggleAllCheck', !this.isAllChecked)//点击之后原来的状态应该取反，然后原来的状态已经在上面映射了，如45行},changeCount (goodsNum, goodsId, goodsSkuId) {// console.log(goodsNum, goodsId, goodsSkuId)// 调用 vuex 的 action，进行数量的修改this.$store.dispatch('cart/changeCountAction', {goodsNum,goodsId,goodsSkuId})},async handleDel () {if (this.selCount === 0) returnawait this.$store.dispatch('cart/delSelect')this.isEdit = false},goPay () {// 判断有没有选中商品if (this.selCount > 0) {// 有选中的 商品 才进行结算跳转this.$router.push({path: '/pay',query: {mode: 'cart',cartIds: this.selCartList.map(item => item.id).join(',') // 'cartId,cartId,cartId'}})}}},watch: {isEdit (value) {if (value) {this.$store.commit('cart/toggleAllCheck', false)} else {this.$store.commit('cart/toggleAllCheck', true)}}}
}
</script>

6.数字框修改数量功能

6.1封装接口

action{

}

调用mutations

问题1：

问题：

封装接口之后，要调用的话，就需要这个CountBox.vue事件，

添加input就可以拿到你所传递过来的参数，

传参就可以拿到数据

但是参数不只有goodsnum，还有其他

在遍历的是有的

所以只要把item传进去就有了，但是如果这么写

就会丢失原本的input传递过来的形参

解决：

既想要保留原本的形参，又需要调用函数传参，

问题2：

是后台更新成功了，但是页面没更新，

本地先修改，然后更新到后台

本地修改只需要传2个本地的购物车就能更新了，不用goods_sku_id

7.编辑切换状态

<template><div class="cart"><van-nav-bar title="购物车" fixed /><div v-if="isLogin && cartList.length > 0"><!-- 购物车开头 --><div class="cart-title"><span class="all">共<i>{{ cartTotal }}</i>件商品</span><span class="edit" @click="isEdit = !isEdit"><van-icon name="edit" />编辑</span></div><div class="all-total"><div class="price"><span>合计：</span><span>¥ <i class="totalPrice">{{ selPrice }}</i></span></div><div v-if="!isEdit" class="goPay" :class="{ disabled: selCount === 0 }"  @click="goPay">结算({{ selCount }})</div><div v-else @click="handleDel" class="delete" :class="{ disabled: selCount === 0 }" >删除</div></div></div></div></template>data () {return {isEdit: false}},
watch: {isEdit (value) {if (value) {this.$store.commit('cart/toggleAllCheck', false)} else {this.$store.commit('cart/toggleAllCheck', true)}}}

效果

8.删除功能

8.1问题1：

代表这一条对应的购物车的数据，

后面如果要删除某一条数据，应该要把这个id组合起来传给后台，后台是数组包含这个id值，接口是string,所以是字符串数组

8.2代码：

1️⃣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 )

import request from '@/utils/request'// 加入购物车
// goodsId    => 商品id     iphone8
// goodsSkuId => 商品规格id  红色的iphone8  粉色的iphone8
export const addCart = (goodsId, goodsNum, goodsSkuId) => {return request.post('/cart/add', {goodsId,goodsNum,goodsSkuId})
}// 获取购物车列表
export const getCartList = () => {return request.get('/cart/list')
}// 更新购物车商品数量
export const changeCount = (goodsId, goodsNum, goodsSkuId) => {return request.post('/cart/update', {goodsId,goodsNum,goodsSkuId})
}// 删除购物车商品
export const delSelect = (cartIds) => {return request.post('/cart/clear', {cartIds})
}

2️⃣注册删除点击事件,调用接口

然后重置一下删除状态，等删除完就转换为结算的按钮

<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')//这个删除选中，其实在本身的actions里是能够获取到的this.isEdit = false
},

理解

🎴

if (this.selCount === 0) return

🎴

3️⃣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')}
},

理解

🪂

🪂

这步的思路，

直接调用我们封装的方法delSelect,但是需要cartIds,就得先拿到数组，要怎么去拿到我们的购物车数组，有context就有state,有state就能拿到数组，而且通过context还能拿到getters,能拿到getters就能拿到选中商品的项，

然后传入这个cartIds , delSelect(cartIds)，然后静待他的请求（await)

🪂

拉去的是这一步，action里面调用action

9.空购物车

1.外面包个大盒子，添加 v-if 判断,然后添加一下购物车的渲染

<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>

2.因为一直要判断，所以小小完善一下

3.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;}
}

31. 订单结算台

31.1静态样式

<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>

31.2获取收货地址列表

1️⃣封装地址的接口4️⃣

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

2️⃣调用获取地址

一进入页面就发请求，用created

import { getAddressList } from '@/api/address'
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}
}

3️⃣ 页面中 - 进行渲染

代码

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>

理解：

这里还有一个贴心的判断

32. 订单结算台 -确认订单信息

33. 订单结算台 -购物车结算

33.1跳转查询参数mode='cart'和

封装接口

import request from '@/utils/request'// 订单结算确认
// mode: cart    => obj { cartIds }
// mode: buyNow  => obj { goodsId  goodsNum  goodsSkuId }
export const checkOrder = (mode, obj) => {return request.get('/checkout/order', {params: {mode, // cart buyNowdelivery: 10, // 10 快递配送 20 门店自提couponId: 0, // 优惠券ID 传0 不使用优惠券isUsePoints: 0, // 积分 传0 不使用积分...obj // 将传递过来的参数对象 动态展开}})
}

注册点击事件

<div class="all-total"><div class="price"><span>合计：</span><span>¥ <i class="totalPrice">{{ selPrice }}</i></span></div><div v-if="!isEdit" class="goPay" :class="{ disabled: selCount === 0 }"  @click="goPay">结算({{ selCount }})</div><div v-else @click="handleDel" class="delete" :class="{ disabled: selCount === 0 }" >删除</div></div></div></div>

模式：cart

method:{
goPay () {// 判断有没有选中商品if (this.selCount > 0) {// 有选中的 商品 才进行结算跳转this.$router.push({path: '/pay',query: {mode: 'cart',cartIds: this.selCartList.map(item => item.id).join(',') // 'cartId,cartId,cartId'}})}}
}

33.2页面中$routr.query接收参数

理解

实现效果

成功把2个参数传递过来，拿是拿过来了，但是没有去获取他，对于地址栏上的参数，直接$.route.query

为了访问，可以在这个pay的页面去定义2个计算属性，找起来方便一点

33.3调用接口，获得数据

<script>
import {checkOrder} from '@/api/order'
export default {data () {return {order: {},personal: {}}
},computed: {mode () {return this.$route.query.mode},cartIds () {return this.$route.query.cartIds}
}}async created () {//一进页面就发请求，要用createdthis.getOrderList()
},async getOrderList () {if (this.mode === 'cart') {const { data: { order, personal } } = await checkOrder(this.mode, { cartIds: this.cartIds })this.order = orderthis.personal = personal}
}

33.4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="!selectedAddress">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>

34. 订单结算台 -立即购买结算

34.1点击跳转传参

<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}})
}

报错

代码没问题，是进入这个页面之后，会立刻去做渲染，而上一个渲染，他没有做判断就报错，

这里是直接去做渲染，基于cartIds去渲染，一旦跳转过来变成buyNow之后，应该要传递 的是goodsId,···,所以需要去准备对应的计算属性，去获取传递过来的参数，

参数传递过来了只不过问题是没有去拿，拿完之后没有基于他去渲染，所以就是地址栏有，但是请求的时候没有带，

34.2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}
}

34.3基于请求时携带参数发请求渲染

method {
async getOrderList () {// 购物车结算if (this.mode === 'cart') {const { data: { order, personal } } = await checkOrder(this.mode, {cartIds: this.cartIds})this.order = orderthis.personal = personal}// 立刻购买结算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}}
}

理解

34.4mixins 复用 - 处理登录确认框的弹出

原因：

这个goBuyNow没有做任何未登录的处理

按道理说直接这段复制粘贴就可以了，但是代码太长，可以封装一下

直接封装成一个方法，但是后面其他页面也可能也会用

希望把这个方法也封装到一个专门的公共位置去复用，这个方法又不是一个普通的函数，又访问store,访问到组件内的一些东西

如果冲突了以组件内部为主

代码

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 或 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created () {// console.log('嘎嘎')},data () {return {title: '标题'}},methods: {sayHi () {// console.log('你好')},// 根据登录状态，判断是否需要显示登录确认框// 1. 如果未登录 => 显示确认框 返回 true// 2. 如果已登录 => 啥也不干   返回 falseloginConfirm () {// 判断 token 是否存在if (!this.$store.getters.token) {// 弹确认框this.$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(() => {this.$router.replace({path: '/login',query: {backUrl: this.$route.fullPath}})}).catch(() => {})return true}return false}}
}

35. 提交订单并支付

35.1 封装 API 通用方法（统一余额支付）

import request from '@/utils/request'
// 提交订单
// mode: cart    => obj { cartIds, remark }
// mode: buyNow  => obj { goodsId, goodsNum, goodsSkuId, remark }
export const submitOrder = (mode, obj) => {return request.post('/checkout/submit', {mode,delivery: 10, // 10 快递配送couponId: 0,isUsePoints: 0,payType: 10, // 余额支付...obj})
}// 订单列表
export const getMyOrderList = (dataType, page) => {return request.get('/order/list', {params: {dataType,page // List}})
}

35.2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>

35.3注册点击事件，提交订单并支付

<div class="tipsbtn" @click="submitOrder">提交订单</div>
import {submitOrder} from '@/api/order'method{
// 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')
}
}

36. 订单管理 & 个人中心 (快速实现)

🪂订单管理

36.1 静态布局

1️⃣ 基础静态结构

<template><div class="order"><van-nav-bar title="我的订单" left-arrow @click-left="$router.go(-1)" /><van-tabs v-model="active" sticky><van-tab name="all" title="全部"></van-tab><van-tab name="payment" title="待支付"></van-tab><van-tab name="delivery" title="待发货"></van-tab><van-tab name="received" title="待收货"></van-tab><van-tab name="comment" title="待评价"></van-tab></van-tabs><OrderListItem v-for="item in list" :key="item.order_id" :item="item"></OrderListItem></div>
</template><script>
import OrderListItem from '@/components/OrderListItem.vue'
import { getMyOrderList } from '@/api/order'
export default {name: 'OrderPage',components: {OrderListItem},data () {return {active: this.$route.query.dataType || 'all',page: 1,list: []}},methods: {async getOrderList () {const { data: { list } } = await getMyOrderList(this.active, this.page)list.data.forEach((item) => {item.total_num = 0item.goods.forEach(goods => {item.total_num += goods.total_num})})this.list = list.data}},watch: {active: {immediate: true,handler () {this.getOrderList()}}}
}
</script><style lang="less" scoped>
.order {background-color: #fafafa;
}
.van-tabs {position: sticky;top: 0;
}
</style>

2️⃣components/OrderListItem

<template><div class="order-list-item" v-if="item.order_id"><div class="tit"><div class="time">{{ item.create_time }}</div><div class="status"><span>{{ item.state_text }}</span></div></div><div class="list" ><div class="list-item" v-for="(goods, index) in item.goods" :key="index"><div class="goods-img"><img :src="goods.goods_image" alt=""></div><div class="goods-content text-ellipsis-2">{{ goods.goods_name }}</div><div class="goods-trade"><p>¥ {{ goods.total_pay_price }}</p><p>x {{ goods.total_num }}</p></div></div></div><div class="total">共 {{ item.total_num }} 件商品，总金额 ¥{{ item.total_price }}</div><div class="actions"><div v-if="item.order_status === 10"><span v-if="item.pay_status === 10">立刻付款</span><span v-else-if="item.delivery_status === 10">申请取消</span><span v-else-if="item.delivery_status === 20 || item.delivery_status === 30">确认收货</span></div><div v-if="item.order_status === 30"><span>评价</span></div></div></div>
</template><script>
export default {props: {item: {type: Object,default: () => {return {}}}}
}
</script><style lang="less" scoped>
.order-list-item {margin: 10px auto;width: 94%;padding: 15px;background-color: #ffffff;box-shadow: 0 0.5px 2px 0 rgba(0,0,0,.05);border-radius: 8px;color: #333;font-size: 13px;.tit {height: 24px;line-height: 24px;display: flex;justify-content: space-between;margin-bottom: 20px;.status {color: #fa2209;}}.list-item {display: flex;.goods-img {width: 90px;height: 90px;margin: 0px 10px 10px 0;img {width: 100%;height: 100%;}}.goods-content {flex: 2;line-height: 18px;max-height: 36px;margin-top: 8px;}.goods-trade {flex: 1;line-height: 18px;text-align: right;color: #b39999;margin-top: 8px;}}.total {text-align: right;}.actions {text-align: right;span {display: inline-block;height: 28px;line-height: 28px;color: #383838;border: 0.5px solid #a8a8a8;font-size: 14px;padding: 0 15px;border-radius: 5px;margin: 10px 0;}}
}
</style>

3️⃣导入注册

import { Tab, Tabs } from 'vant'
Vue.use(Tab)
Vue.use(Tabs)

36.2点击 tab 切换渲染

1️⃣封装获取订单列表的 API 接口

// 订单列表
export const getMyOrderList = (dataType, page) => {return request.get('/order/list', {params: {dataType,page}})
}

2️⃣给 tab 绑定 name 属性

封装调用接口获取数据

<template><div class="order"><van-nav-bar title="我的订单" left-arrow @click-left="$router.go(-1)" /><van-tabs v-model="active" sticky><van-tab name="all" title="全部"></van-tab><van-tab name="payment" title="待支付"></van-tab><van-tab name="delivery" title="待发货"></van-tab><van-tab name="received" title="待收货"></van-tab><van-tab name="comment" title="待评价"></van-tab></van-tabs><OrderListItem v-for="item in list" :key="item.order_id" :item="item"></OrderListItem></div>
</template><script>
import OrderListItem from '@/components/OrderListItem.vue'
import { getMyOrderList } from '@/api/order'
export default {name: 'OrderPage',components: {OrderListItem},data () {return {active: this.$route.query.dataType || 'all',page: 1,list: []}},methods: {async getOrderList () {const { data: { list } } = await getMyOrderList(this.active, this.page)list.data.forEach((item) => {item.total_num = 0item.goods.forEach(goods => {item.total_num += goods.total_num})})//上面的话要计算商品的总数，上面我的订单要展示一下所有订单的总数//但是默认后台返回的接口中，没有给你返回这个总数，所以做了个处理，遍历//将他们的总数做了一个求和this.list = list.data}},watch: {active: {immediate: true,handler () {this.getOrderList()}}}
}
</script><style lang="less" scoped>
.order {background-color: #fafafa;
}
.van-tabs {position: sticky;top: 0;
}
</style>

3️⃣动态渲染

<template><div class="order-list-item" v-if="item.order_id"><div class="tit"><div class="time">{{ item.create_time }}</div><div class="status"><span>{{ item.state_text }}</span></div></div><div class="list" ><div class="list-item" v-for="(goods, index) in item.goods" :key="index"><div class="goods-img"><img :src="goods.goods_image" alt=""></div><div class="goods-content text-ellipsis-2">{{ goods.goods_name }}</div><div class="goods-trade"><p>¥ {{ goods.total_pay_price }}</p><p>x {{ goods.total_num }}</p></div></div></div><div class="total">共 {{ item.total_num }} 件商品，总金额 ¥{{ item.total_price }}</div><div class="actions"><div v-if="item.order_status === 10"><span v-if="item.pay_status === 10">立刻付款</span><span v-else-if="item.delivery_status === 10">申请取消</span><span v-else-if="item.delivery_status === 20 || item.delivery_status === 30">确认收货</span></div><div v-if="item.order_status === 30"><span>评价</span></div></div></div>
</template><script>
export default {props: {item: {type: Object,default: () => {return {}}}}
}
</script><style lang="less" scoped>
.order-list-item {margin: 10px auto;width: 94%;padding: 15px;background-color: #ffffff;box-shadow: 0 0.5px 2px 0 rgba(0,0,0,.05);border-radius: 8px;color: #333;font-size: 13px;.tit {height: 24px;line-height: 24px;display: flex;justify-content: space-between;margin-bottom: 20px;.status {color: #fa2209;}}.list-item {display: flex;.goods-img {width: 90px;height: 90px;margin: 0px 10px 10px 0;img {width: 100%;height: 100%;}}.goods-content {flex: 2;line-height: 18px;max-height: 36px;margin-top: 8px;}.goods-trade {flex: 1;line-height: 18px;text-align: right;color: #b39999;margin-top: 8px;}}.total {text-align: right;}.actions {text-align: right;span {display: inline-block;height: 28px;line-height: 28px;color: #383838;border: 0.5px solid #a8a8a8;font-size: 14px;padding: 0 15px;border-radius: 5px;margin: 10px 0;}}
}
</style>

🪂个人中心

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="$router.push('/myorder?dataType=received')"><van-icon name="send-gift-o" /><span>待收货</span></div></div><div class="service"><div class="title">我的服务</div><div class="content"><div class="content-item"><van-icon name="records" /><span>收货地址</span></div><div class="content-item"><van-icon name="gift-o" /><span>领券中心</span></div><div class="content-item"><van-icon name="gift-card-o" /><span>优惠券</span></div><div class="content-item"><van-icon name="question-o" /><span>我的帮助</span></div><div class="content-item"><van-icon name="balance-o" /><span>我的积分</span></div><div class="content-item"><van-icon name="refund-o" /><span>退换/售后</span></div></div></div><div class="logout-btn"><button @click="logout">退出登录</button></div></div>
</template><script>
import { getUserInfoDetail } from '@/api/user.js'
export default {name: 'UserPage',data () {return {detail: {}}},created () {if (this.isLogin) {this.getUserInfoDetail()}},computed: {isLogin () {return this.$store.getters.token}},methods: {async getUserInfoDetail () {const { data: { userInfo } } = await getUserInfoDetail()this.detail = userInfo},logout () {this.$dialog.confirm({title: '温馨提示',message: '你确认要退出么'}).then(() => {// 退出是一个动作 => 包含了两步，分别是将 user 和 cart 进行重置this.$store.dispatch('user/logout')}).catch(() => {})}}
}
</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>

🪂退出功能

这个退出，是需要操作vuex里面的数据的，操作vuex里面的数据，一定要提交mutation

1.注册点击事件

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(() => {})}
}a

mutations: {// 所有mutations的第一个参数，都是statesetUserInfo (state, obj) {state.userInfo = obj//存入vues的同时，传入一份在本地setInfo(obj)}},actions: {logout (context) {// 个人信息要重置context.commit('setUserInfo', {})// 购物车信息要重置 (跨模块调用 mutation)  cart/setCartListcontext.commit('cart/setCartList', [], { root: true })}},getters: {}
}

跨模块

问题1：

一点退出的提示框,有多个数据要清，尤其vuex里面的多个数据，在vuex现在有2个分模块的数据

虽然这个cart看起来没什么数据，但是一旦加入了几个商品，就会有数据了，无论是cart还是user,都要在退出之后重置数据，但是有多个模块的数据需要去重置，就需要多mutations,这个退出是一个动作=> 包含了两步，分别是将 user 和 cart 进行重置，所以就封装action

37. 打包发布

38. 打包优化：路由懒加载