客户只有登录了才能继续购物操作，才能进行某些业务。在view/Login文件夹下新建index.vue文件，代码如下
用到的接口
在apis文件夹下新建文件user.js，需要用到的接口如下
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| import request from "@/utils/http"
export const loginAPI = ({ account, password }) => {
return request({
url: '/login',
method: 'POST',
data: {
account,
password
}
})
}
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表单校验实现
自定义校验
校验的核心部件为
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| <el-form ref="formRef" :model="form" :rules="rules" label-position="right" label-width="60px" status-icon>
<el-form-item prop="account" label="账户">
<el-input v-model="form.account" />
</el-form-item>
<el-form-item prop="password" label="密码">
<el-input v-model="form.password" />
</el-form-item>
<el-form-item prop="agree" label-width="22px">
<el-checkbox size="large" v-model="form.agree">我已同意隐私条款和服务条款</el-checkbox>
</el-form-item>
<el-button size="large" class="subBtn" @click="doLogin">点击登录</el-button>
</el-form>
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其中，<el-form />用于绑定表单对象和规则对象，<el-form-item />用于绑定使用的规则字段，<el-input />用于绑定表单数据。
<el-form />绑定了表单”formRef”，其在js上定义的表现形式为
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| const form = ref({
account: '',
password: '',
agree: true
})
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定义的规则对象为
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| const rules = {
account: [
{ required: true, message: '账户名不能为空', trigger: 'blur' }
],
password: [
{ required: true, message: '密码不能为空', trigger: 'blur' },
{ min: 6, max: 14, message: '密码在6至14字符之间', trigger: 'blur' }
],
agree: [
{
validator: (rule, value, callback) => {
if (value) {
callback();
} else {
callback(new Error('请勾选协议'))
}
}
}
]
}
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blur表示在输入框失焦时触发。
统一校验
此时假如什么都不填，直接点击登录，还是能进去的。因此需要统一校验规则，在收到成功消息后才允许登录
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| const doLogin = () => {
const { account, password } = form.value
formRef.value.validate(async (valid) => {
if (valid) {
userStore.getUserInfo({ account, password })
ElMessage({ type: 'success', message: '登录成功' })
router.replace({ path: '/' })
}
})
}
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userStore在下面的章节
Pinia管理用户数据
用户数据在后面都需要用到，因此一般是用Pinia将其存储起来。
在store文件夹下面新建文件user.js，源码如下
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| import { defineStore } from "pinia";
import { ref } from "vue";
import { loginAPI } from "../apis/user";
import { useCartStore } from "./cartStore";
import { mergeCartAPI } from "../apis/cart";
export const useUserStore = defineStore('user', () => {
const userInfo = ref({})
const cartStore = useCartStore()
const getUserInfo = async ({ account, password }) => {
const res = await loginAPI({ account, password })
userInfo.value = res.result
await mergeCartAPI(cartStore.cartList.map((item) => {
return {
skuId: item.skuId,
selected: item.selected,
count: item.count
}
}))
cartStore.updateNewList()
}
const clearUserInfo = () => {
userInfo.value = {}
cartStore.clearCart()
}
return {
userInfo,
getUserInfo,
clearUserInfo,
}
}, {
persist: true,
})
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用户登录后同步本地的购物车数据到自己的账户中，然后通过调取loginAPI获取用户信息，信息都存到userInfo中。退出操作则让用户数据清空。
而后面的persist属性需要配合pinia的持久化。用户数据中有一个关键的数据Token（标识用户是否已经登录），而Token持续一段时间才会过期。因此需要让保存在内存中的数据在LocalStorage里也存一份。该功能需要在main.js中全局注册实现。
购物车和用户这两个store互有联系，需要相互看。
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| const pinia = createPinia()
pinia.use(piniaPluginPersistedstate)
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源码
index.vue
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| <script setup>
import { ref } from 'vue';
import { ElMessage } from 'element-plus';
import 'element-plus/theme-chalk/el-message.css'
import { useRouter } from 'vue-router';
import { useUserStore } from '@/stores/user'
const userStore = useUserStore()
const form = ref({
account: '',
password: '',
agree: true
})
const rules = {
account: [
{ required: true, message: '账户名不能为空', trigger: 'blur' }
],
password: [
{ required: true, message: '密码不能为空', trigger: 'blur' },
{ min: 6, max: 14, message: '密码在6至14字符之间', trigger: 'blur' }
],
agree: [
{
validator: (rule, value, callback) => {
if (value) {
callback();
} else {
callback(new Error('请勾选协议'))
}
}
}
]
}
const formRef = ref(null)
const router = useRouter()
const doLogin = () => {
const { account, password } = form.value
formRef.value.validate(async (valid) => {
if (valid) {
userStore.getUserInfo({ account, password })
ElMessage({ type: 'success', message: '登录成功' })
router.replace({ path: '/' })
}
})
}
</script>
<template>
<div>
<header class="login-header">
<div class="container m-top-20">
<h1 class="logo">
<router-link to="/">小兔鲜</router-link>
</h1>
<router-link class="entry" to="/">
进入网站首页
<i class="iconfont icon-angle-right"></i>
<i class="iconfont icon-angle-right"></i>
</router-link>
</div>
</header>
<section class="login-section">
<div class="wrapper">
<nav><a href="javascript:;">用户登录</a></nav>
<div class="account-box">
<div class="form">
<el-form ref="formRef" :model="form" :rules="rules" label-position="right" label-width="60px"
status-icon>
<el-form-item prop="account" label="账户">
<el-input v-model="form.account" />
</el-form-item>
<el-form-item prop="password" label="密码">
<el-input v-model="form.password" />
</el-form-item>
<el-form-item prop="agree" label-width="22px">
<el-checkbox size="large" v-model="form.agree">我已同意隐私条款和服务条款</el-checkbox>
</el-form-item>
<el-button size="large" class="subBtn" @click="doLogin">点击登录</el-button>
</el-form>
</div>
</div>
</div>
</section>
<footer class="login-footer">
<div class="container">
<p>
<a href="javascript:;">关于我们</a>
<a href="javascript:;">帮助中心</a>
<a href="javascript:;">售后服务</a>
<a href="javascript:;">配送与验收</a>
<a href="javascript:;">商务合作</a>
<a href="javascript:;">搜索推荐</a>
<a href="javascript:;">友情链接</a>
</p>
<p>CopyRight © 小兔鲜儿</p>
</div>
</footer>
</div>
</template>
<style scoped lang='scss'>
.login-header {
background: #fff;
border-bottom: 1px solid #e4e4e4;
.container {
display: flex;
align-items: flex-end;
justify-content: space-between;
}
.logo {
width: 200px;
a {
display: block;
height: 132px;
width: 100%;
text-indent: -9999px;
background: url("@/assets/images/logo.png") no-repeat center 18px / contain;
}
}
.sub {
flex: 1;
font-size: 24px;
font-weight: normal;
margin-bottom: 38px;
margin-left: 20px;
color: #666;
}
.entry {
width: 120px;
margin-bottom: 38px;
font-size: 16px;
i {
font-size: 14px;
color: $xtxColor;
letter-spacing: -5px;
}
}
}
.login-section {
background: url('@/assets/images/login-bg.png') no-repeat center / cover;
height: 488px;
position: relative;
.wrapper {
width: 380px;
background: #fff;
position: absolute;
left: 50%;
top: 54px;
transform: translate3d(100px, 0, 0);
box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
nav {
font-size: 14px;
height: 55px;
margin-bottom: 20px;
border-bottom: 1px solid #f5f5f5;
display: flex;
padding: 0 40px;
text-align: right;
align-items: center;
a {
flex: 1;
line-height: 1;
display: inline-block;
font-size: 18px;
position: relative;
text-align: center;
}
}
}
}
.login-footer {
padding: 30px 0 50px;
background: #fff;
p {
text-align: center;
color: #999;
padding-top: 20px;
a {
line-height: 1;
padding: 0 10px;
color: #999;
display: inline-block;
~a {
border-left: 1px solid #ccc;
}
}
}
}
.account-box {
.toggle {
padding: 15px 40px;
text-align: right;
a {
color: $xtxColor;
i {
font-size: 14px;
}
}
}
.form {
padding: 0 20px 20px 20px;
&-item {
margin-bottom: 28px;
.input {
position: relative;
height: 36px;
>i {
width: 34px;
height: 34px;
background: #cfcdcd;
color: #fff;
position: absolute;
left: 1px;
top: 1px;
text-align: center;
line-height: 34px;
font-size: 18px;
}
input {
padding-left: 44px;
border: 1px solid #cfcdcd;
height: 36px;
line-height: 36px;
width: 100%;
&.error {
border-color: $priceColor;
}
&.active,
&:focus {
border-color: $xtxColor;
}
}
.code {
position: absolute;
right: 1px;
top: 1px;
text-align: center;
line-height: 34px;
font-size: 14px;
background: #f5f5f5;
color: #666;
width: 90px;
height: 34px;
cursor: pointer;
}
}
>.error {
position: absolute;
font-size: 12px;
line-height: 28px;
color: $priceColor;
i {
font-size: 14px;
margin-right: 2px;
}
}
}
.agree {
a {
color: #069;
}
}
.btn {
display: block;
width: 100%;
height: 40px;
color: #fff;
text-align: center;
line-height: 40px;
background: $xtxColor;
&.disabled {
background: #cfcdcd;
}
}
}
.action {
padding: 20px 40px;
display: flex;
justify-content: space-between;
align-items: center;
.url {
a {
color: #999;
margin-left: 10px;
}
}
}
}
.subBtn {
background: $xtxColor;
width: 100%;
color: #fff;
}
</style>
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