ThinkPHP6를 사용하여 Alipay 결제를 구현하는 방법

composer require "alipay/easysdk:dev-master" -vvv

<?php

namespace appliPayservice;

use Exception;
use thinkacadeConfig;
use thinkacadeLog;
use AlipayEasySDKKernelFactory;
use AlipayEasySDKPaymentCommonModelsAlipayTradeAppPayModel;

class PayService
{
    /**
     * app支付
     *
     * @param integer $orderId 订单ID
     * @param string $subject 订单标题
     * @param string $body 订单内容
     * @param float $amount 订单金额（元）
     * @param bool $isDebug 是否开启调试
     * 
     * @return array|string
     */
    public function appPay($orderId, $subject, $body, $amount, $isDebug = false)
    {
        try {
            // 获取支付宝配置信息
            $config = Config::get('alipay.');

            // 加载SDK配置
            Factory::setOptions($config);

            // 创建支付请求对象
            $request = Factory::payment()->appPay(new AlipayTradeAppPayModel([
                'outTradeNo' => $orderId, // 订单ID
                'subject' => $subject, // 订单标题
                'totalAmount' => strval($amount), // 订单金额（元）
                'body' => $body, // 订单内容
            ]));

            // 返回支付参数
            return $request;
        } catch (Exception $e) {
            // 异常处理，自行根据业务逻辑实现
            Log::error($e->getMessage());
            return '支付请求失败，请重新尝试';
        }
    }
}

<?php

namespace appindexcontroller;

use thinkacadeRequest;
use appliPayservicePayService;

class Index
{
    public function index()
    {
        // 生成订单
        $orderId = 1;
        $subject = '测试订单';
        $body = '测试订单内容';
        $amount = 0.01;

        $payService = new PayService();
        $payParams = $payService->appPay($orderId, $subject, $body, $amount, true);

        // 返回支付参数给客户端
        return json($payParams);
    }
}