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<template>
<div class="wechat-payment">
<!-- 支付弹窗 -->
<el-dialog
v-model="visible"
title="微信支付"
width="400px"
:close-on-click-modal="false"
:close-on-press-escape="false"
@close="handleCancel"
>
<div class="payment-content">
<!-- 支付信息 -->
<div class="payment-info">
<div class="payment-title">{{ paymentData.title }}</div>
<div class="payment-amount">
¥<span class="amount-value">{{ formatAmount(paymentData.amount) }}</span>
</div>
</div>
<!-- 支付状态 -->
<div class="payment-status">
<template v-if="paymentStatus === 'pending'">
<div class="qr-container">
<div class="qr-code" ref="qrCodeRef">
<!-- 二维码将在这里生成 -->
</div>
<div class="qr-tips">
<el-icon class="scan-icon"><Iphone /></el-icon>
<p>请使用微信扫码支付</p>
<p class="tips-text">扫码后请在手机上完成支付</p>
</div>
</div>
<!-- 倒计时 -->
<div class="countdown">
<span>支付剩余时间:</span>
<span class="countdown-time">{{ formatTime(countdown) }}</span>
</div>
</template>
<template v-else-if="paymentStatus === 'loading'">
<div class="loading-status">
<el-icon class="loading-icon"><Loading /></el-icon>
<p>正在生成支付二维码...</p>
</div>
</template>
<template v-else-if="paymentStatus === 'success'">
<div class="success-status">
<el-icon class="success-icon"><CircleCheck /></el-icon>
<p>支付成功!</p>
<p class="success-tips">感谢您的支付,页面即将跳转...</p>
</div>
</template>
<template v-else-if="paymentStatus === 'failed'">
<div class="failed-status">
<el-icon class="failed-icon"><CircleClose /></el-icon>
<p>支付失败</p>
<p class="failed-tips">{{ errorMessage || '支付过程中出现异常,请重试' }}</p>
</div>
</template>
<template v-else-if="paymentStatus === 'timeout'">
<div class="timeout-status">
<el-icon class="timeout-icon"><Clock /></el-icon>
<p>支付超时</p>
<p class="timeout-tips">二维码已过期,请重新发起支付</p>
</div>
</template>
</div>
</div>
<!-- 操作按钮 -->
<template #footer>
<div class="dialog-footer">
<el-button
v-if="paymentStatus === 'pending'"
@click="refreshQrCode"
:loading="refreshing"
>
刷新二维码
</el-button>
<el-button
v-if="paymentStatus === 'failed' || paymentStatus === 'timeout'"
type="primary"
@click="retryPayment"
>
重新支付
</el-button>
<el-button
@click="handleCancel"
:disabled="paymentStatus === 'loading'"
>
{{ paymentStatus === 'success' ? '关闭' : '取消支付' }}
</el-button>
</div>
</template>
</el-dialog>
</div>
</template>
<script>
import { ref, computed, nextTick, onUnmounted, watch } from 'vue';
import { ElMessage, ElMessageBox } from 'element-plus';
import { orderApi } from '@/api/user';
import {
Iphone,
Loading,
CircleCheck,
CircleClose,
Clock
} from '@element-plus/icons-vue';
import { wechatPayApi } from '@/api/user.js';
import QRCode from 'qrcode';
export default {
name: 'WechatPayment',
components: {
Iphone,
Loading,
CircleCheck,
CircleClose,
Clock
},
props: {
// 是否显示支付弹窗
modelValue: {
type: Boolean,
default: false
},
// 支付数据
paymentData: {
type: Object,
default: () => ({
orderId: '', // 订单ID
title: '商品支付', // 支付标题
amount: 0, // 支付金额(分)
body: '' // 商品描述
})
}
},
emits: ['update:modelValue', 'success', 'cancel', 'failed'],
setup(props, { emit }) {
const visible = computed({
get: () => props.modelValue,
set: (value) => emit('update:modelValue', value)
});
const qrCodeRef = ref(null);
const paymentStatus = ref('loading');
const countdown = ref(300);
const refreshing = ref(false);
const errorMessage = ref('');
let pollingTimer = null;
let countdownTimer = null;
let outTradeNo = '';
// 格式化金额
const formatAmount = (amount) => {
return (amount / 100).toFixed(2);
};
// 格式化时间
const formatTime = (seconds) => {
const minutes = Math.floor(seconds / 60);
const remainingSeconds = seconds % 60;
return `${minutes.toString().padStart(2, '0')}:${remainingSeconds.toString().padStart(2, '0')}`;
};
// 生成二维码
const generateQrCode = async (codeUrl) => {
try {
await nextTick();
if (qrCodeRef.value) {
qrCodeRef.value.innerHTML = '';
await QRCode.toCanvas(qrCodeRef.value, codeUrl, {
width: 200,
height: 200,
margin: 1,
color: {
dark: '#000000',
light: '#FFFFFF'
}
});
}
} catch (error) {
console.error('生成二维码失败:', error);
ElMessage.error('生成二维码失败');
}
};
// 创建支付订单
const createPaymentOrder = async () => {
try {
paymentStatus.value = 'loading';
const params = {
orderId: props.paymentData.orderId,
totalFee: props.paymentData.amount,
body: props.paymentData.body || props.paymentData.title
};
// 模拟API响应
await new Promise(resolve => setTimeout(resolve, 1000));
const mockResponse = {
code: 200,
result: {
codeUrl: `weixin://wxpay/bizpayurl?pr=${Math.random().toString(36).substr(2, 9)}`,
outTradeNo: `ORDER_${Date.now()}`
}
};
if (mockResponse.code === 200 && mockResponse.result) {
const { codeUrl, outTradeNo: tradeNo } = mockResponse.result;
outTradeNo = tradeNo;
await generateQrCode(codeUrl);
paymentStatus.value = 'pending';
startPolling();
startCountdown();
} else {
throw new Error('创建支付订单失败');
}
} catch (error) {
console.error('创建支付订单失败:', error);
paymentStatus.value = 'failed';
errorMessage.value = error.message;
ElMessage.error(error.message || '创建支付订单失败');
}
};
// 开始轮询支付状态
const startPolling = () => {
if (pollingTimer) {
clearInterval(pollingTimer);
}
pollingTimer = setInterval(async () => {
await checkPaymentStatus();
}, 2000);
};
// 停止轮询
const stopPolling = () => {
if (pollingTimer) {
clearInterval(pollingTimer);
pollingTimer = null;
}
};
// 检查支付状态
const checkPaymentStatus = async () => {
try {
// 模拟随机支付成功(演示用)
if (Math.random() > 0.95) {
handlePaymentSuccess();
return;
}
// 实际项目中调用真实API
// const response = await wechatPayApi.queryWechatPayStatus(outTradeNo);
} catch (error) {
console.error('查询支付状态失败:', error);
}
};
// 处理支付成功
const handlePaymentSuccess = () => {
paymentStatus.value = 'success';
stopPolling();
stopCountdown();
ElMessage.success('支付成功!');
emit('success', outTradeNo);
setTimeout(() => {
visible.value = false;
}, 3000);
};
// 处理支付失败
const handlePaymentFailed = (message) => {
paymentStatus.value = 'failed';
errorMessage.value = message;
stopPolling();
stopCountdown();
ElMessage.error(message || '支付失败');
emit('failed', message);
};
// 开始倒计时
const startCountdown = () => {
countdown.value = 300;
countdownTimer = setInterval(() => {
countdown.value--;
if (countdown.value <= 0) {
handlePaymentTimeout();
}
}, 1000);
};
// 停止倒计时
const stopCountdown = () => {
if (countdownTimer) {
clearInterval(countdownTimer);
countdownTimer = null;
}
};
// 处理支付超时
const handlePaymentTimeout = () => {
paymentStatus.value = 'timeout';
stopPolling();
stopCountdown();
ElMessage.warning('支付超时,请重新发起支付');
};
// 刷新二维码
const refreshQrCode = async () => {
refreshing.value = true;
try {
await createPaymentOrder();
} finally {
refreshing.value = false;
}
};
// 重新支付
const retryPayment = () => {
errorMessage.value = '';
createPaymentOrder();
};
// 取消支付
const handleCancel = async () => {
if (paymentStatus.value === 'success') {
visible.value = false;
return;
}
try {
await ElMessageBox.confirm(
'确定要取消支付吗?',
'取消支付',
{
confirmButtonText: '确定',
cancelButtonText: '继续支付',
type: 'warning',
}
);
stopPolling();
stopCountdown();
visible.value = false;
emit('cancel');
} catch {
// 用户选择继续支付
}
};
// 监听弹窗显示状态
watch(visible, (newVal) => {
if (newVal && props.paymentData.orderId) {
createPaymentOrder();
} else {
stopPolling();
stopCountdown();
paymentStatus.value = 'loading';
errorMessage.value = '';
outTradeNo = '';
}
});
// 组件卸载时清理
onUnmounted(() => {
stopPolling();
stopCountdown();
});
return {
visible,
qrCodeRef,
paymentStatus,
countdown,
refreshing,
errorMessage,
formatAmount,
formatTime,
refreshQrCode,
retryPayment,
handleCancel
};
}
};
</script>
<style lang="scss" scoped>
.wechat-payment {
.payment-content {
text-align: center;
padding: 20px 0;
.payment-info {
margin-bottom: 20px;
.payment-title {
font-size: 18px;
font-weight: 600;
color: #303133;
margin-bottom: 8px;
}
.payment-amount {
font-size: 24px;
color: #0A2463;
font-weight: 700;
.amount-value {
font-size: 32px;
}
}
}
.payment-status {
min-height: 300px;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
.qr-container {
.qr-code {
margin-bottom: 16px;
display: flex;
justify-content: center;
:deep(canvas) {
border-radius: 8px;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
}
.qr-tips {
.scan-icon {
font-size: 32px;
color: #0A2463;
margin-bottom: 8px;
}
p {
margin: 4px 0;
color: #606266;
&:first-of-type {
font-size: 16px;
font-weight: 600;
color: #303133;
}
}
.tips-text {
font-size: 14px;
color: #909399;
}
}
}
.countdown {
margin-top: 16px;
font-size: 14px;
color: #909399;
.countdown-time {
color: #F56C6C;
font-weight: 600;
}
}
.loading-status,
.success-status,
.failed-status,
.timeout-status {
display: flex;
flex-direction: column;
align-items: center;
.loading-icon {
font-size: 48px;
color: #0A2463;
animation: rotate 2s linear infinite;
margin-bottom: 16px;
}
.success-icon {
font-size: 48px;
color: #67C23A;
margin-bottom: 16px;
}
.failed-icon,
.timeout-icon {
font-size: 48px;
color: #F56C6C;
margin-bottom: 16px;
}
p {
margin: 4px 0;
font-size: 16px;
color: #303133;
&:first-of-type {
font-weight: 600;
font-size: 18px;
}
}
.success-tips,
.failed-tips,
.timeout-tips {
font-size: 14px;
color: #909399;
}
}
}
}
.dialog-footer {
display: flex;
justify-content: center;
gap: 12px;
.el-button {
&.el-button--primary {
background-color: #0A2463;
border-color: #0A2463;
&:hover {
background-color: #083354;
border-color: #083354;
}
}
}
}
}
@keyframes rotate {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
// 响应式设计
@media (max-width: 768px) {
.wechat-payment {
:deep(.el-dialog) {
width: 90% !important;
margin: 5vh auto !important;
}
.payment-content {
padding: 16px 0;
.payment-info {
.payment-title {
font-size: 16px;
}
.payment-amount {
font-size: 20px;
.amount-value {
font-size: 28px;
}
}
}
.payment-status {
min-height: 250px;
.qr-container {
.qr-code {
:deep(canvas) {
width: 160px !important;
height: 160px !important;
}
}
}
}
}
}
}
</style>