微信公众号支付
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@@ -32,11 +32,17 @@ class OnlinePaymentService
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/** 在线支付渠道:微信官方支付 */
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public const string CHANNEL_WECHAT = 'wechat';
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/** 支付场景:微信小程序(wx.login 换 openid,wx.requestPayment 调起) */
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public const string SCENE_MINI = 'mini';
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/** 支付场景:公众号 H5(网页授权换 openid,WeixinJSBridge 调起) */
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public const string SCENE_MP = 'mp';
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public function __construct(
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protected BillNumberService $billNumber,
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protected WangpuPayService $wangpu,
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protected WechatPayService $wxpay,
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protected WechatMiniService $wechat,
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protected WechatMpService $wechatMp,
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) {}
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/**
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@@ -55,20 +61,29 @@ class OnlinePaymentService
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* 发起在线支付
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*
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* @param array<int, int> $billIds 合并付款的账单ID
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* @param string $code 小程序 wx.login() 返回的登录凭证
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* @param string $code 小程序 wx.login() 登录凭证 / 公众号网页授权 code(按 scene 区分)
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* @param string $scene 支付场景:mini=小程序(默认) / mp=公众号 H5
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* @return array{0: PaymentModel, 1: array<string, mixed>} 支付单与渠道返回的调起支付参数
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* @throws Throwable
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*/
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public function create(StoreModel $store, array $billIds, string $code, string $remark = ''): array
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public function create(StoreModel $store, array $billIds, string $code, string $remark = '', string $scene = self::SCENE_MINI): array
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{
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$channel = $this->channel();
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$payMethod = $channel === self::CHANNEL_WECHAT ? PaymentModel::METHOD_WECHAT : PaymentModel::METHOD_WANGPU;
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// 换取付款人 openid 并绑定到门店(下次可直接复用)
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$openid = $this->wechat->code2session($code);
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if ((string) $store->openid !== $openid) {
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$store->openid = $openid;
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$store->save();
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// 换取付款人 openid 并绑定到门店(小程序/公众号分场景绑定,两者 openid 维度不同不可混用)
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if ($scene === self::SCENE_MP) {
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$openid = $this->wechatMp->code2openid($code);
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if ((string) $store->mp_openid !== $openid) {
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$store->mp_openid = $openid;
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$store->save();
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}
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} else {
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$openid = $this->wechat->code2session($code);
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if ((string) $store->openid !== $openid) {
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$store->openid = $openid;
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$store->save();
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}
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}
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[$payment, $bills] = DB::transaction(function () use ($store, $billIds, $openid, $remark, $payMethod) {
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@@ -122,12 +137,14 @@ class OnlinePaymentService
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(string) $payment->amount,
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$openid,
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'账单合并付款-' . $payment->payment_no,
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$scene === self::SCENE_MP ? $this->wechatMp->appid() : '',
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)
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: $this->wangpu->createOrder([
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'mer_order_id' => $payment->payment_no,
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'order_amt' => (string) $payment->amount,
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'open_id' => $openid,
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'sub_appid' => $this->subAppid(),
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'sub_appid' => $this->subAppid($scene),
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'payway_code' => $this->wangpu->paywayCode($scene),
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'order_title' => '账单合并付款-' . $payment->payment_no,
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'notifyurl' => $this->wangpu->notifyUrl(),
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]);
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@@ -391,10 +408,13 @@ class OnlinePaymentService
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}
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/**
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* 下单微信子 appid(默认取小程序 appid)
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* 下单微信子 appid(默认取小程序 appid;公众号 H5 场景取公众号 appid)
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*/
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protected function subAppid(): string
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protected function subAppid(string $scene = self::SCENE_MINI): string
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{
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if ($scene === self::SCENE_MP) {
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return $this->wechatMp->appid();
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}
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$subAppid = (string) site_config('wangpu.sub_appid', '');
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if ($subAppid === '') {
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$subAppid = (string) config('services.wangpu.sub_appid', '');
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@@ -90,6 +90,20 @@ class WangpuPayService
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return rtrim((string) config('app.url'), '/') . '/mini/payment/notify';
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}
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/**
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* 支付方式代码(公众号 H5 场景优先取 mp_payway_code,留空回退 payway_code)
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*/
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public function paywayCode(string $scene = 'mini'): string
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{
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if ($scene === 'mp') {
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$mpPayway = $this->config('mp_payway_code');
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if ($mpPayway !== '') {
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return $mpPayway;
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}
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}
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return $this->config('payway_code');
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}
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/**
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* 网关 POST 请求:业务报文加密装信封 → JSON 发送 → 校验应答码 → 解密应答
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*
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@@ -0,0 +1,72 @@
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<?php
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namespace App\Services;
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use App\Exceptions\RepositoryException;
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use Illuminate\Support\Facades\Http;
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use Illuminate\Support\Facades\Log;
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/**
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* 微信公众号服务(网页授权 code 换 openid,公众号 JSAPI 支付前置)
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*
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* H5 页面在微信内置浏览器打开 → 网页授权(snsapi_base)回调带回 code
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* → 本服务以 code 换付款人 openid(公众号维度,与小程序 openid 不同,不可混用)
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*/
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class WechatMpService
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{
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/**
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* 网页授权 code 换 openid(sns/oauth2/access_token)
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*
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* @return string 用户公众号维度 openid
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* @throws RepositoryException 未配置公众号或授权失败
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*/
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public function code2openid(string $code): string
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{
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$appid = $this->appid();
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$secret = $this->config('mp_secret');
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if ($appid === '' || $secret === '') {
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throw new RepositoryException('微信公众号未配置 AppID/Secret,请联系管理员');
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}
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$result = Http::timeout(10)->withOptions([
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'verify' => false, // 禁用 SSL 证书验证
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])->get('https://api.weixin.qq.com/sns/oauth2/access_token', [
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'appid' => $appid,
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'secret' => $secret,
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'code' => $code,
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'grant_type' => 'authorization_code',
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])->json();
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$openid = is_array($result) ? (string) ($result['openid'] ?? '') : '';
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if ($openid === '') {
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Log::warning('微信网页授权失败', ['response' => $result]);
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throw new RepositoryException('微信网页授权失败:' . ($result['errmsg'] ?? '请重新授权'));
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}
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return $openid;
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}
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/**
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* 公众号 AppID(公众号 JSAPI 下单 appid、H5 拼网页授权链接使用)
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*/
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public function appid(): string
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{
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return $this->config('mp_appid');
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}
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/**
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* 读取应用配置:后台站点配置(微信应用配置分组)优先,为空回退 config/services.php(env)
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*/
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protected function config(string $key): string
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{
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$value = site_config('wechat.' . $key, '');
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if ($value === null || $value === '') {
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$value = match ($key) {
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'mp_appid' => config('services.wechat.mp.appid', ''),
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'mp_secret' => config('services.wechat.mp.secret', ''),
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default => '',
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};
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}
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return trim((string) $value);
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}
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}
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@@ -29,19 +29,22 @@ class WechatPayService
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protected ?Application $application = null;
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/**
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* 统一下单(小程序 JSAPI)
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* 统一下单(JSAPI:小程序 / 公众号 H5 通用)
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*
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* @param string $paymentNo 商户订单号(本系统支付单号)
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* @param string $amountYuan 金额(元,两位小数)
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* @param string $openid 付款人 openid
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* @param string $openid 付款人 openid(按下单 appid 维度:小程序 openid 或公众号 openid)
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* @param string $description 订单标题
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* @return array<string, mixed> wx.requestPayment 调起参数(timeStamp/nonceStr/package/signType/paySign)
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* @param string $appid 下单应用 appid(公众号 JSAPI 传公众号 appid;留空取配置的小程序 appid)
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* @return array<string, mixed> 调起支付参数(appId/timeStamp/nonceStr/package/signType/paySign,
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* 小程序喂 wx.requestPayment,公众号 H5 喂 WeixinJSBridge getBrandWCPayRequest,结构同构)
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* @throws RepositoryException 未配置或下单失败
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*/
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public function createOrder(string $paymentNo, string $amountYuan, string $openid, string $description): array
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public function createOrder(string $paymentNo, string $amountYuan, string $openid, string $description, string $appid = ''): array
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{
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$appid = trim($appid) !== '' ? trim($appid) : $this->appid();
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$result = $this->call('POST', '/v3/pay/transactions/jsapi', [
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'appid' => $this->appid(),
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'appid' => $appid,
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'mchid' => $this->config('mch_id'),
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'description' => mb_substr($description, 0, 127),
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'out_trade_no' => $paymentNo,
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@@ -59,8 +62,9 @@ class WechatPayService
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throw new RepositoryException('微信支付下单失败:应答缺少 prepay_id');
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}
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$params = $this->app()->getUtils()->buildMiniAppConfig($prepayId, $this->appid());
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Log::driver('pay')->info('微信支付下单成功', ['out_trade_no' => $paymentNo, 'prepay_id' => $prepayId]);
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// buildMiniAppConfig 即 buildBridgeConfig(小程序 wx.requestPayment 与公众号 WeixinJSBridge 参数同构)
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$params = $this->app()->getUtils()->buildMiniAppConfig($prepayId, $appid);
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Log::driver('pay')->info('微信支付下单成功', ['out_trade_no' => $paymentNo, 'prepay_id' => $prepayId, 'appid' => $appid]);
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return $params;
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}
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