houseworking/manage-server/app/Http/Controllers/PaymentController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class PaymentController extends Controller
{
    /**
     * 生成支付订单
     * @param Request $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function buildOrder(Request $request)
    {

        $wechat_id = $request->header("openid");
        if (!$wechat_id) {
            $wechat_id = $request->input("openid");
        }
        $order_id = $request->input("order_id");
        $order_type = $request->input("order_type");
        $order = CommonController::getRecord($order_type, $order_id);

        if ($wechat_id && $order) {
            $out_trade_no = $order_type . "_" . $order_id;
            $app = app('wechat.payment');
            $result = $app->order->unify([
                'body' => '玥子轩家政',
                'out_trade_no' => $out_trade_no,
                'total_fee' => $order->price * 100,
                'trade_type' => 'JSAPI',
                'openid' => $wechat_id,
                'time_expire' => substr(Carbon::now()->addHour()->format('YmdHisu'), 14)
            ]);

            if ($result['return_code'] == 'SUCCESS' && $result['result_code'] == 'SUCCESS') {
                //第二次签名
                //$result = $app->jssdk->appConfig($result['prepay_id']);
                //$config = $app->configForAppPayment($result['prepay_id']);
                $config = $app->jssdk->sdkConfig($result['prepay_id']);
                return response()->json([
                    "status" => 0,
                    "code" => "success",
                    "msg" => $config,
                    "out_trade_no" => $out_trade_no
                ]);
            } else {
                return response()->json([
                    "status" => -1,
                    "message" => '微信支付签名失败:' . var_export($result, 1)
                ]);
            }

        }
    }

    /**
     * 支付成功回调函数
     * @param Request $request
     * @return mixed
     */
    public function notify(Request $request)
    {
        $app = app('wechat.payment');
        $response = $app->handlePaidNotify(function($message, $fail){
            // 使用通知里的 "微信支付订单号" 或者 "商户订单号" 去自己的数据库找到订单
            list($order_type, $order_id) = spilt("_", $message['out_trade_no']);
            $order = CommonController::getRecord($order_type, $order_id);

            if (!$order || $order->paid_at) { // 如果订单不存在 或者 订单已经支付过了
                return true; // 告诉微信，我已经处理完了，订单没找到，别再通知我了
            }

            ///////////// <- 建议在这里调用微信的【订单查询】接口查一下该笔订单的情况，确认是已经支付 /////////////

            /*$app = app('wechat.payment');
            $order_result = $app->order->queryByOutTradeNumber($message['out_trade_no']);
            if($order_result && $order_result['return_code'] === 'SUCCESS') {
                // 如果支付成功
                if($order_result["trade_state"] != "SUCCESS") {
                    $order->status = -1;
                } else {

                }
            }*/

            if ($message['return_code'] === 'SUCCESS') { // return_code 表示通信状态，不代表支付状态
                // 用户是否支付成功
                if (array_get($message, 'result_code') === 'SUCCESS') {
                    $order->paid_at = time(); // 更新支付时间为当前时间
                    $order->status = 2;

                    // 用户支付失败
                } elseif (array_get($message, 'result_code') === 'FAIL') {
                    $order->status = -1;
                }
            } else {
                return $fail('通信失败，请稍后再通知我');
            }

            $order->save(); // 保存订单

            return true; // 返回处理完成
        });
        return $response;
    }
}