前端Vue小兔鲜儿电商项目实战Day06

一、本地购物车 - 列表购物车

1. 基础内容渲染

①准备模板 - src/views/cartList/index.vue

<script setup>
const cartList = []
</script><template><div class="xtx-cart-page"><div class="container m-top-20"><div class="cart"><table><thead><tr><th width="120"><el-checkbox /></th><th width="400">商品信息</th><th width="220">单价</th><th width="180">数量</th><th width="180">小计</th><th width="140">操作</th></tr></thead><!-- 商品列表 --><tbody><tr v-for="i in cartList" :key="i.id"><td><el-checkbox /></td><td><div class="goods"><RouterLink to="/"><img :src="i.picture" alt=""/></RouterLink><div><p class="name ellipsis">{{ i.name }}</p></div></div></td><td class="tc"><p>&yen;{{ i.price }}</p></td><td class="tc"><el-input-number v-model="i.count" /></td><td class="tc"><p class="f16 red">&yen;{{ (i.price * i.count).toFixed(2) }}</p></td><td class="tc"><p><el-popconfirmtitle="确认删除吗?"confirm-button-text="确认"cancel-button-text="取消"@confirm="delCart(i)"><template #reference><a href="javascript:;">删除</a></template></el-popconfirm></p></td></tr><tr v-if="cartList.length === 0"><td colspan="6"><div class="cart-none"><el-empty description="购物车列表为空"><el-button type="primary">随便逛逛</el-button></el-empty></div></td></tr></tbody></table></div><!-- 操作栏 --><div class="action"><div class="batch">共 10 件商品，已选择 2 件，商品合计：<span class="red">¥ 200.00 </span></div><div class="total"><el-button size="large" type="primary">下单结算</el-button></div></div></div></div>
</template><style scoped lang="scss">
.xtx-cart-page {margin-top: 20px;.cart {background: #fff;color: #666;table {border-spacing: 0;border-collapse: collapse;line-height: 24px;th,td {padding: 10px;border-bottom: 1px solid #f5f5f5;&:first-child {text-align: left;padding-left: 30px;color: #999;}}th {font-size: 16px;font-weight: normal;line-height: 50px;}}}.cart-none {text-align: center;padding: 120px 0;background: #fff;p {color: #999;padding: 20px 0;}}.tc {text-align: center;a {color: $xtxColor;}.xtx-numbox {margin: 0 auto;width: 120px;}}.red {color: $priceColor;}.green {color: $xtxColor;}.f16 {font-size: 16px;}.goods {display: flex;align-items: center;img {width: 100px;height: 100px;}> div {width: 280px;font-size: 16px;padding-left: 10px;.attr {font-size: 14px;color: #999;}}}.action {display: flex;background: #fff;margin-top: 20px;height: 80px;align-items: center;font-size: 16px;justify-content: space-between;padding: 0 30px;.xtx-checkbox {color: #999;}.batch {a {margin-left: 20px;}}.red {font-size: 18px;margin-right: 20px;font-weight: bold;}}.tit {color: #666;font-size: 16px;font-weight: normal;line-height: 50px;}
}
</style>

②绑定路由关系 - src/router/index.js

import { createRouter, createWebHistory } from 'vue-router'
// ... ...
import CartList from '@/views/cartList/index.vue'const router = createRouter({history: createWebHistory(import.meta.env.BASE_URL),routes: [{path: '/',component: Layout,children: [// ... ...{path: 'cartlist',component: CartList}]},{path: '/login',component: Login}],// 路由滚动行为定制scrollBehavior() {return {top: 0}}
})export default router

③src/views/Layout/components/HeaderCart.vue

<el-button@click="$router.push('/cartlist')"size="large"type="primary">去购物车结算</el-button>

④渲染列表

<script setup>
import { useCartStore } from '@/stores/cart.js'const cartStore = useCartStore()
</script><template><div class="xtx-cart-page"><div class="container m-top-20"><div class="cart"><table><thead><tr><th width="120"><el-checkbox /></th><th width="400">商品信息</th><th width="220">单价</th><th width="180">数量</th><th width="180">小计</th><th width="140">操作</th></tr></thead><!-- 商品列表 --><tbody><tr v-for="i in cartStore.cartList" :key="i.id"><td><!-- 单选框 --><el-checkbox:model-value="i.selected"/></td><td><div class="goods"><RouterLink to="/"><img :src="i.picture" alt=""/></RouterLink><div><p class="name ellipsis">{{ i.name }}</p></div></div></td><td class="tc"><p>&yen;{{ i.price }}</p></td><td class="tc"><el-input-number v-model="i.count" /></td><td class="tc"><p class="f16 red">&yen;{{ (i.price * i.count).toFixed(2) }}</p></td><td class="tc"><p><el-popconfirmtitle="确认删除吗?"confirm-button-text="确认"cancel-button-text="取消"@confirm="cartStore.delCart(i)"><template #reference><a href="javascript:;">删除</a></template></el-popconfirm></p></td></tr><tr v-if="cartStore.cartList.length === 0"><td colspan="6"><div class="cart-none"><el-empty description="购物车列表为空"><el-button @click="$router.push('/')" type="primary">随便逛逛</el-button></el-empty></div></td></tr></tbody></table></div><!-- 操作栏 --><div class="action"><div class="batch">共 {{ cartStore.allCount }} 件商品，已选择 2 件，商品合计：<span class="red">¥ 200.00 </span></div><div class="total"><el-button size="large" type="primary">下单结算</el-button></div></div></div></div>
</template>

2. 单选功能

核心思路：单选的核心思路就是始终把单选框的状态和Pinia中store对应的状态保持同步

注意事项：v-model双向绑定指令不方便进行命令式的操作（因为后续还需要调用接口），所以把v-model回退到一般模式，也就是 :model-value 和 @change 的配合实现

①添加单选action - src/stores/cart.js

// 单选功能
const singleCheck = (skuId, selected) => {// 通过skuId找到要修改的那一项，然后把他的selected修改为传过来的selectedconst item = cartList.value.find((item) => item.skuId === skuId)item.selected = selected
}

②触发action函数 - src/views/cartList/index.vue

<script setup>
// 单选回调
const singleCheck = (i, selected) => {console.log(i, selected)// store cartList 数组 无法知道要修改谁的选中状态？// 除了selected补充一个用来筛选的参数 - skuIdcartStore.singleCheck(i.skuId, selected)
}
</script><template><td><!-- 单选框 --><el-checkbox :model-value="i.selected" @change="(selected) => singleCheck(i, selected)" /></td>
</template>

3. 全选功能

核心思路：

1. 操作单选决定全选：只有当cartList中的所有项都为true时，全选状态才为true
2. 操作全选决定单选：cartList中的所有项的selected都要跟着一起变

①定义action和计算属性 - src/stores/cart.js

// 全选功能
const allCheck = (selected) => {// 把cartList中的每一项的selected都设置为当前的全选框状态cartList.value.forEach((item) => (item.selected = selected))
}// 判断是否全选计算属性
const isAll = computed(() =>cartList.value.length > 0 &&cartList.value.every((item) => item.selected)
)

②组件中触发action和使用计算属性 - src/views/cartList/index.vue

<script setup>
const allCheck = (selected) => {cartStore.allCheck(selected)
}</script><template><!-- 全选框 --><el-checkbox :model-value="cartStore.isAll" @change="allCheck" />
</template>

4. 统计数据功能实现

①定义计算属性 - src/stores/cart.js

// 3. 已选择数量
const selectedCount = computed(() => cartList.value.filter(item => item.selected).reduce((a, c) => a + c.count, 0))
// 4. 已选择商品价钱合计
const selectedPrice = computed(() => cartList.value.filter(item => item.selected).reduce((a, c) => a + c.count * c.price, 0))

②组件中使用 - src/views/cartList/index.vue

<!-- 操作栏 -->
<div class="action"><div class="batch">共 {{ cartStore.allCount }} 件商品，已选择{{ cartStore.selectedCount }} 件，商品合计：<span class="red">¥ {{ cartStore.selectedPrice.toFixed(2) }} </span></div><div class="total"><el-button size="large" type="primary">下单结算</el-button></div>
</div>

二、接口购物车

结论：到目前为止，购物车在非登录状态下的各种操作都已经ok了，包括action的封装、触发、参数传递，剩下的事情就是在action中做登录状态的分支判断，补充登录状态下的接口操作逻辑即可。

1. 加入购物车

①封装接口 - src/apis/cart.js

import instance from '@/utils/http.js'// 加入购物车
export const insertCartAPI = ({ skuId, count }) => {return instance({url: '/member/cart',method: 'POST',data: {skuId,count}})
}// 获取购物车列表
export const updateNewListAPI = () => {return instance({url: '/member/cart'})
}

②action中适配登录和非登录

import { defineStore } from 'pinia'
import { useUserStore } from './user.js'
import { insertCartAPI, updateNewListAPI } from '@/apis/cart.js'export const useCartStore = defineStore('cart', () => {const userStore = useUserStore()const isLogin = computed(() => userStore.userInfo.token)const addCart = async (goods) => {const { skuId, count } = goods// 登录if (isLogin.value) {// 登录之后的加入购车逻辑await insertCartAPI({ skuId, count })const res = await updateNewListAPI()cartList.value = res.result} else {// 未登录const item = cartList.value.find((item) => goods.skuId === item.skuId)if (item) {// 找到了item.count++} else {// 没找到cartList.value.push(goods)}}}
}, {persist: true,
})

2. 删除购物车

①封装接口 - src/apis/cart.js

// 删除购物车
export const delCartAPI = (ids) => {return instance({url: '/member/cart',method: 'DELETE',data: {ids}})
}

②action中适配登录和非登录 - src/stores/cart.js

    // 删除购物车const delCart = async (skuId) => {if (isLogin.value) {// 调用接口实现接口购物车的删除功能await delCartAPI([skuId])updateNewList()} else {// 思路：1. 找到要删除的下标值 - splice//       2. 使用组件的过滤方法 - filterconst idx = cartList.value.findIndex((item) => skuId === item.skuId)cartList.value.splice(idx, 1)}}// 获取最新购物车列表actionconst updateNewList = async () => {const res = await updateNewListAPI()cartList.value = res.result}

三、退出登录 - 清空购物车列表

1. 业务需求

在用户退出登录时，除了清空用户信息之外，也需要把购物车数据清空

①封装接口 - src/stores/cart.js

    // 清除购物车const clearCart = () => {cartList.value = []}

②在退出登录action中执行清除业务 - src/stores/user.js

import { defineStore } from 'pinia'
import { loginAPI } from '@/apis/user'
import { ref } from 'vue'
import { useCartStore } from './cart.js'export const useUserStore = defineStore('user',() => {// 1. 定义管理用户数据的stateconst userInfo = ref({})const cartStore = useCartStore()// 2. 定义获取数据的action函数const getUserInfo = async ({ account, password }) => {const res = await loginAPI({ account, password })userInfo.value = res.result}// 退出登录时清除用户信息和清空购物车const clearUserInfo = () => {userInfo.value = {}cartStore.clearCart()}// 3. 以对象的形式把state和action returnreturn {userInfo,getUserInfo,clearUserInfo}},{persist: true}
)

四、合并本地购物车到服务器

1. 合并购物车业务实现

问：用户在非登录时进行的所有购物车操作，我们的服务器能知道吗？

答：不能。不能的话不是白操作了吗？本地购物车的意义在哪？

解决办法：在用户登录时，把本地购物车数据和服务器端购物车数据进行合并操作。

①封装接口 - src/apis/cart.js

// 合并购物车
export const mergeCartAPI = (data) => {return instance({url: '/member/cart/merge',method: 'POST',data: data})
}

②登录时调用合并购物车接口，获取最新的购物车列表，覆盖本地的购物车列表

src/stores/user.js

import { defineStore } from 'pinia'
import { loginAPI } from '@/apis/user'
import { ref } from 'vue'
import { useCartStore } from './cart.js'
import { mergeCartAPI } from '@/apis/cart.js'export const useUserStore = defineStore('user',() => {// 1. 定义管理用户数据的stateconst userInfo = ref({})const cartStore = useCartStore()// 2. 定义获取数据的action函数const getUserInfo = async ({ account, password }) => {const res = await loginAPI({ account, password })userInfo.value = res.result// 合并购物车await mergeCartAPI(cartStore.cartList.map((item) => {return {skuId: item.skuId,selected: item.selected,count: item.count}}))cartStore.updateNewList()}// 退出登录时清除用户信息和清空购物车const clearUserInfo = () => {userInfo.value = {}cartStore.clearCart()}// 3. 以对象的形式把state和action returnreturn {userInfo,getUserInfo,clearUserInfo}},{persist: true}
)

五、结算模块 - 路由配置和基础数据渲染

1. 路由陪着和基础数据渲染

路由配置：

①准备组件 - src/views/Checkout/index.vue

<script setup>
const checkInfo = {} // 订单对象
const curAddress = {} // 地址对象
</script><template><div class="xtx-pay-checkout-page"><div class="container"><div class="wrapper"><!-- 收货地址 --><h3 class="box-title">收货地址</h3><div class="box-body"><div class="address"><div class="text"><div class="none" v-if="!curAddress">您需要先添加收货地址才可提交订单。</div><ul v-else><li><span>收<i />货<i />人：</span>{{ curAddress.receiver }}</li><li><span>联系方式：</span>{{ curAddress.contact }}</li><li><span>收货地址：</span>{{ curAddress.fullLocation }}{{ curAddress.address }}</li></ul></div><div class="action"><el-button size="large" @click="toggleFlag = true">切换地址</el-button><el-button size="large" @click="addFlag = true">添加地址</el-button></div></div></div><!-- 商品信息 --><h3 class="box-title">商品信息</h3><div class="box-body"><table class="goods"><thead><tr><th width="520">商品信息</th><th width="170">单价</th><th width="170">数量</th><th width="170">小计</th><th width="170">实付</th></tr></thead><tbody><tr v-for="i in checkInfo.goods" :key="i.id"><td><a href="javascript:;" class="info"><img :src="i.picture" alt="" /><div class="right"><p>{{ i.name }}</p><p>{{ i.attrsText }}</p></div></a></td><td>&yen;{{ i.price }}</td><td>{{ i.price }}</td><td>&yen;{{ i.totalPrice }}</td><td>&yen;{{ i.totalPayPrice }}</td></tr></tbody></table></div><!-- 配送时间 --><h3 class="box-title">配送时间</h3><div class="box-body"><a class="my-btn active" href="javascript:;">不限送货时间：周一至周日</a><a class="my-btn" href="javascript:;">工作日送货：周一至周五</a><a class="my-btn" href="javascript:;">双休日、假日送货：周六至周日</a></div><!-- 支付方式 --><h3 class="box-title">支付方式</h3><div class="box-body"><a class="my-btn active" href="javascript:;">在线支付</a><a class="my-btn" href="javascript:;">货到付款</a><span style="color: #999">货到付款需付5元手续费</span></div><!-- 金额明细 --><h3 class="box-title">金额明细</h3><div class="box-body"><div class="total"><dl><dt>商品件数：</dt><dd>{{ checkInfo.summary?.goodsCount }}件</dd></dl><dl><dt>商品总价：</dt><dd>¥{{ checkInfo.summary?.totalPrice.toFixed(2) }}</dd></dl><dl><dt>运<i></i>费：</dt><dd>¥{{ checkInfo.summary?.postFee.toFixed(2) }}</dd></dl><dl><dt>应付总额：</dt><dd class="price">{{ checkInfo.summary?.totalPayPrice.toFixed(2) }}</dd></dl></div></div><!-- 提交订单 --><div class="submit"><el-button type="primary" size="large">提交订单</el-button></div></div></div></div><!-- 切换地址 --><!-- 添加地址 -->
</template><style scoped lang="scss">
.xtx-pay-checkout-page {margin-top: 20px;.wrapper {background: #fff;padding: 0 20px;.box-title {font-size: 16px;font-weight: normal;padding-left: 10px;line-height: 70px;border-bottom: 1px solid #f5f5f5;}.box-body {padding: 20px 0;}}
}.address {border: 1px solid #f5f5f5;display: flex;align-items: center;.text {flex: 1;min-height: 90px;display: flex;align-items: center;.none {line-height: 90px;color: #999;text-align: center;width: 100%;}> ul {flex: 1;padding: 20px;li {line-height: 30px;span {color: #999;margin-right: 5px;> i {width: 0.5em;display: inline-block;}}}}> a {color: $xtxColor;width: 160px;text-align: center;height: 90px;line-height: 90px;border-right: 1px solid #f5f5f5;}}.action {width: 420px;text-align: center;.btn {width: 140px;height: 46px;line-height: 44px;font-size: 14px;&:first-child {margin-right: 10px;}}}
}.goods {width: 100%;border-collapse: collapse;border-spacing: 0;.info {display: flex;text-align: left;img {width: 70px;height: 70px;margin-right: 20px;}.right {line-height: 24px;p {&:last-child {color: #999;}}}}tr {th {background: #f5f5f5;font-weight: normal;}td,th {text-align: center;padding: 20px;border-bottom: 1px solid #f5f5f5;&:first-child {border-left: 1px solid #f5f5f5;}&:last-child {border-right: 1px solid #f5f5f5;}}}
}.my-btn {width: 228px;height: 50px;border: 1px solid #e4e4e4;text-align: center;line-height: 48px;margin-right: 25px;color: #666666;display: inline-block;&.active,&:hover {border-color: $xtxColor;}
}.total {dl {display: flex;justify-content: flex-end;line-height: 50px;dt {i {display: inline-block;width: 2em;}}dd {width: 240px;text-align: right;padding-right: 70px;&.price {font-size: 20px;color: $priceColor;}}}
}.submit {text-align: right;padding: 60px;border-top: 1px solid #f5f5f5;
}.addressWrapper {max-height: 500px;overflow-y: auto;
}.text {flex: 1;min-height: 90px;display: flex;align-items: center;&.item {border: 1px solid #f5f5f5;margin-bottom: 10px;cursor: pointer;&.active,&:hover {border-color: $xtxColor;background: lighten($xtxColor, 50%);}> ul {padding: 10px;font-size: 14px;line-height: 30px;}}
}
</style>

②配置路由关系 - src/router/index.js

import { createRouter, createWebHistory } from 'vue-router'
// ... ...
import Checkout from '@/views/Checkout/index.vue'const router = createRouter({history: createWebHistory(import.meta.env.BASE_URL),routes: [{path: '/',component: Layout,children: [// ... ...{path: 'checkout',component: Checkout}]},{path: '/login',component: Login}],// 路由滚动行为定制scrollBehavior() {return {top: 0}}
})export default router

③配置路由跳转 - src/views/cartList/index.vue

<div class="total"><el-button@click="$router.push('/checkout')":disabled="cartStore.cartList.length === 0"size="large"type="primary">下单结算</el-button>
</div>

基础数据渲染：

①准备接口 - src/apis/checkout.js

import instance from '@/utils/http.js'// 获取结算信息
export const getCheckoutInfoAPI = () => {return instance({url: '/member/order/pre'})
}

②获取数据，渲染默认地址和商品列表以及统计数据 - src/views/Checkout/index.vue

<script setup>
import { ref } from 'vue'
import { getCheckoutInfoAPI } from '@/apis/checkout.js'const checkInfo = ref({}) // 订单对象
const curAddress = ref({})
const getCheckInfo = async () => {const res = await getCheckoutInfoAPI()checkInfo.value = res.result//   console.log(checkInfo.value)// 适配默认地址（从地址列表中筛选出来isDefault === 0 的那一项const item = checkInfo.value.userAddresses.find((item) => item.isDefault === 0)curAddress.value = item
}
getCheckInfo()
</script>

六、结算模块 - 地址切换交互实现

1. 地址切换交互需求分析

①打开弹框交互：点击切换地址按钮，打开弹框，回显用户可选地址列表

②切换地址交互：点击切换地址，点击确认按钮，激活地址替换默认收货地址

2. 打开弹框交互

①准备弹框组件 - src/views/Checkout/index.vue

<el-dialog title="切换收货地址" width="30%" center><div class="addressWrapper"><div class="text item" v-for="item in checkInfo.userAddresses"  :key="item.id"><ul><li><span>收<i />货<i />人：</span>{{ item.receiver }} </li><li><span>联系方式：</span>{{ item.contact }}</li><li><span>收货地址：</span>{{ item.fullLocation + item.address }}</li></ul></div></div><template #footer><span class="dialog-footer"><el-button>取消</el-button><el-button type="primary">确定</el-button></span></template>
</el-dialog>

②组件v-model绑定响应式数据 - src/views/Checkout/index.vue

const showDialog = ref(false)<el-button size="large" @click="showDialog = true">切换地址</el-button><el-dialog v-model="showDialog" title="切换收货地址" width="30%" center><!-- 省略 -->
</el-dialog>

2. 切换地址交互

原理：地址切换是我们经常遇到的`tab切换类`需求，这类需求的实现逻辑都是相似的

1. 点击时记录一个当前激活地址对象activeAddress，点击哪个地址就把哪个地址对象记录下来
2. 通过动态类名 :class 控制激活样式类型active是否存在，判断条件为：激活地址对象的id === 当前项id

src/views/Checkout/index.vue

<script setup>
// 切换地址
const activeAddress = ref({})
const switchAddress = (item) => {activeAddress.value = item
}// 点击确认
const confirm = () => {curAddress.value = activeAddress.valueshowDialog.value = false
}
</script><template>
<div class="text item" :class="{ active: activeAddress.id === item.id }" @click="switchAddress(item)":key="item.id"><!-- 省略... -->
</div>
<!-- ... ... -->
<template #footer><span class="dialog-footer"><el-button @click="showDialog = false">取消</el-button><el-button @click="confirm" type="primary">确定</el-button></span>
</template></template>

七、订单模块 - 生成订单功能实现

1. 业务需求说明

确定结算信息没有问题之后，点击提交订单按钮，需要做以下两个事情：

1. 调用接口生成订单id，并且携带id跳转到支付页
2. 调用更新购物车列表接口，更新购物车状态

①准备支付页组件 - src/views/Pay/index.vue

<script setup>
const payInfo = {}
</script><template><div class="xtx-pay-page"><div class="container"><!-- 付款信息 --><div class="pay-info"><span class="icon iconfont icon-queren2"></span><div class="tip"><p>订单提交成功！请尽快完成支付。</p><p>支付还剩 <span>24分30秒</span>, 超时后将取消订单</p></div><div class="amount"><span>应付总额：</span><span>¥{{ payInfo.payMoney?.toFixed(2) }}</span></div></div><!-- 付款方式 --><div class="pay-type"><p class="head">选择以下支付方式付款</p><div class="item"><p>支付平台</p><a class="btn wx" href="javascript:;"></a><a class="btn alipay" :href="payUrl"></a></div><div class="item"><p>支付方式</p><a class="btn" href="javascript:;">招商银行</a><a class="btn" href="javascript:;">工商银行</a><a class="btn" href="javascript:;">建设银行</a><a class="btn" href="javascript:;">农业银行</a><a class="btn" href="javascript:;">交通银行</a></div></div></div></div>
</template><style scoped lang="scss">
.xtx-pay-page {margin-top: 20px;
}.pay-info {background: #fff;display: flex;align-items: center;height: 240px;padding: 0 80px;.icon {font-size: 80px;color: #1dc779;}.tip {padding-left: 10px;flex: 1;p {&:first-child {font-size: 20px;margin-bottom: 5px;}&:last-child {color: #999;font-size: 16px;}}}.amount {span {&:first-child {font-size: 16px;color: #999;}&:last-child {color: $priceColor;font-size: 20px;}}}
}.pay-type {margin-top: 20px;background-color: #fff;padding-bottom: 70px;p {line-height: 70px;height: 70px;padding-left: 30px;font-size: 16px;&.head {border-bottom: 1px solid #f5f5f5;}}.btn {width: 150px;height: 50px;border: 1px solid #e4e4e4;text-align: center;line-height: 48px;margin-left: 30px;color: #666666;display: inline-block;&.active,&:hover {border-color: $xtxColor;}&.alipay {background: url(https://cdn.cnbj1.fds.api.mi-img.com/mi-mall/7b6b02396368c9314528c0bbd85a2e06.png) no-repeat center / contain;}&.wx {background: url(https://cdn.cnbj1.fds.api.mi-img.com/mi-mall/c66f98cff8649bd5ba722c2e8067c6ca.jpg) no-repeat center / contain;}}
}
</style>

②绑定路由 - src/router/index.js

import { createRouter, createWebHistory } from 'vue-router'
// ... ...
import Pay from '@/views/Pay/index.vue'const router = createRouter({history: createWebHistory(import.meta.env.BASE_URL),routes: [{path: '/',component: Layout,children: [// ... ...{path: 'pay',component: Pay}]},{path: '/login',component: Login}],// 路由滚动行为定制scrollBehavior() {return {top: 0}}
})export default router

③封装生成订单接口 - src/apis/checkout.js

// 创建订单
export const createOrderAPI = (data) => {return instance({url: '/member/order',method: 'POST',data})
}

④绑定路由跳转关系 - src/views/Checkout/index.vue

<script setup>
import { useRouter } from 'vue-router'
import { useCartStore } from '@/stores/cart.js'// 创建订单
const router = useRouter()
const cartStore = useCartStore()
const createOrder = async () => {const res = await createOrderAPI({deliveryTimeType: 1,payType: 1,payChannel: 1,buyerMessage: '',goods: checkInfo.value.goods.map((item) => {return {skuId: item.skuId,count: item.count}}),addressId: curAddress.value.id})const orderId = res.result.idrouter.push({path: '/pay',query: {id: orderId}})// 更新购物车cartStore.updateNewList()
}
</script><template><!-- 提交订单 --><div class="submit"><el-button @click="createOrder" type="primary" size="large">提交订单</el-button></div>
</template

八、支付模块 - 渲染基础数据

支付页有两个关键数据，一个是要支付的金额，一个是倒计时数据（超时不支付商品释放）

①封装获取订单详情的接口 - src/apis/pay.js

import instance from '@/utils/http'// 获取订单详情
export const getOrderAPI = (id) => {return instance({url: `/member/order/${id}`})
}

②获取数据渲染内容 - src/views/Pay/index.vue

<script setup>
import { getOrderAPI } from '@/apis/pay'
import { ref } from 'vue'
import { useRoute } from 'vue-router'
// 获取订单数据
const route = useRoute()
const payInfo = ref({})
const getPayInfo = async () => {const res = await getOrderAPI(route.query.id)payInfo.value = res.result
}getPayInfo()
</script><template><div class="xtx-pay-page"><div class="container"><!-- 付款信息 --><div class="pay-info"><span class="icon iconfont icon-queren2"></span><div class="tip"><p>订单提交成功！请尽快完成支付。</p><p>支付还剩 <span>{{ formatTime }}</span>, 超时后将取消订单</p></div><div class="amount"><span>应付总额：</span><span>¥{{ payInfo.payMoney?.toFixed(2) }}</span></div></div><!-- 付款方式 --><div class="pay-type"><p class="head">选择以下支付方式付款</p><div class="item"><p>支付平台</p><a class="btn wx" href="javascript:;"></a><a class="btn alipay" :href="payUrl"></a></div><div class="item"><p>支付方式</p><a class="btn" href="javascript:;">招商银行</a><a class="btn" href="javascript:;">工商银行</a><a class="btn" href="javascript:;">建设银行</a><a class="btn" href="javascript:;">农业银行</a><a class="btn" href="javascript:;">交通银行</a></div></div></div></div>
</template>

九、支付模块 - 实现支付功能

1. 支付业务流程

src/views/Pay/index.vue

<script setup>
// 跳转支付
// 携带订单id以及回跳地址，跳转到支付地址（get）
// 支付地址
const baseURL = 'http://pcapi-xiaotuxian-front-devtest.itheima.net/'
const backURL = 'http://127.0.0.1:5173/paycallback'
const redirectUrl = encodeURIComponent(backURL)
const payUrl = `${baseURL}pay/aliPay?orderId=${route.query.id}&redirect=${redirectUrl}`
</script>

账号已经没钱了！！！

十、支付模块 - 支付结果展示

①准备模板 - src/views/Pay/PayBack.vue

<script setup></script><template><div class="xtx-pay-page"><div class="container"><!-- 支付结果 --><div class="pay-result"><span class="iconfont icon-queren2 green"></span><span class="iconfont icon-shanchu red"></span><p class="tit">支付成功</p><p class="tip">我们将尽快为您发货，收货期间请保持手机畅通</p><p>支付方式：<span>支付宝</span></p><p>支付金额：<span>¥200.00</span></p><div class="btn"><el-button type="primary" style="margin-right: 20px">查看订单</el-button><el-button>进入首页</el-button></div><p class="alert"><span class="iconfont icon-tip"></span>温馨提示：小兔鲜儿不会以订单异常、系统升级为由要求您点击任何网址链接进行退款操作，保护资产、谨慎操作。</p></div></div></div>
</template><style scoped lang="scss">
.pay-result {padding: 100px 0;background: #fff;text-align: center;margin-top: 20px;> .iconfont {font-size: 100px;}.green {color: #1dc779;}.red {color: $priceColor;}.tit {font-size: 24px;}.tip {color: #999;}p {line-height: 40px;font-size: 16px;}.btn {margin-top: 50px;}.alert {font-size: 12px;color: #999;margin-top: 50px;}
}
</style>

②绑定路由 - src/router/index.vue

import { createRouter, createWebHistory } from 'vue-router'
// ... ...
import PayBack from '@/views/Pay/PayBack.vue'const router = createRouter({history: createWebHistory(import.meta.env.BASE_URL),routes: [{path: '/',component: Layout,children: [// ... ...{path: 'paycallback',component: PayBack}]},{path: '/login',component: Login}],// 路由滚动行为定制scrollBehavior() {return {top: 0}}
})export default router

③渲染数据 - src/views/Pay/PayBack.vue

<script setup>
import { ref } from 'vue'
import { getOrderAPI } from '@/apis/pay.js'
import { useRoute } from 'vue-router'const route = useRoute()
const orderInfo = ref({})const getOrderInfo = async () => {const res = await getOrderAPI(route.query.orderId)orderInfo.value = res.result
}getOrderInfo()
</script><template><div class="xtx-pay-page"><div class="container"><!-- 支付结果 --><div class="pay-result"><!-- 路由参数获取到的是字符串而不是布尔值 --><spanclass="iconfont icon-queren2 green"v-if="$route.query.payResult === 'true'"></span><span class="iconfont icon-shanchu red" v-else></span><p class="tit">支付{{ $route.query.payResult === 'true' ? '成功' : '失败' }}</p><p class="tip">我们将尽快为您发货，收货期间请保持手机畅通</p><p>支付方式：<span>支付宝</span></p><p>支付金额：<span>¥{{ orderInfo.payMoney?.toFixed(2) }}</span></p><div class="btn"><el-button type="primary" style="margin-right: 20px">查看订单</el-button><el-button @click="$router.push('/')">进入首页</el-button></div><p class="alert"><span class="iconfont icon-tip"></span>温馨提示：小兔鲜儿不会以订单异常、系统升级为由要求您点击任何网址链接进行退款操作，保护资产、谨慎操作。</p></div></div></div>
</template>

十一、封装倒计时函数

编写一个函数useCountDown 可以把秒数格式化为倒计时的显示状态，函数使用样例如下：

const { formatTime, start } = useCountDown(){{ formatTime }}start(60)

1. formatTime为显示的倒计时时间

2. start是倒计时启动函数，调用时可以设置初始值并开始倒计时

①安装dayjs

pnpm add dayjs

②封装倒计时逻辑函数 - src/composables/useCountDown.js

// 封装倒计时逻辑函数
import { ref, computed, onUnmounted } from 'vue'
import dayjs from 'dayjs'export const useCountDown = () => {// 1. 响应式的数据let timer = nullconst time = ref(0)// 格式化时间const formatTime = computed(() => dayjs.unix(time.value).format('mm分ss秒'))// 2. 开启倒计时的函数const start = (currentTime) => {// 编写开始倒计时的逻辑// 核心逻辑：每隔1s就减一time.value = currentTimetimer = setInterval(() => {time.value--}, 1000)}// 组件销毁时清除定时器onUnmounted(() => {timer && clearInterval(timer)})return {formatTime,start}
}