網站接入支付寶支付業務

 支付寶python SDK接口文檔：

https://pypi.org/project/alipay-sdk-python/#description

 

網站對接支付寶流程

 

 

 

 

 

 

 

獲取支付寶付款二維碼url:

class OrderPayView(View):
    """完成支付"""
    def post(self,request):
        # 用戶是否登錄
        user = request.user
        if not  user.is_authenticated:
            return JsonResponse({'res': 0, 'errmsg': '用戶未登錄'})
        # 接收參數
        order_id = request.POST.get('order_id')
        # 檢驗參數
        if not order_id:
            return JsonResponse({'res': 1, 'errmsg': '無效的訂單id'})
        try:
            order=OrderInfo.objects.get(order_id=order_id,
                                  user=user,
                                  pay_method=3,
                                  order_status=1)
        except OrderInfo.DoesNotExist:
            # 無效訂單
            return JsonResponse({'res': 2, 'errmsg': '無效的訂單,目前只支持支付寶支付'})
        # 業務處理：使用python SDK 調用支付寶的支付接口
        # 初始化
        alipay = AliPay(
            appid=settings.ALI_PAY['default']['app_id'],  # 應用id
            app_notify_url='http://www.relishfruit.com',  # 默認回調url
            app_private_key_path=settings.ALI_PAY['default']['app_private_key_path'],
            alipay_public_key_path=settings.ALI_PAY['default']['alipay_public_key_path'],
            # 支付寶的公鑰，驗證支付寶回傳消息使用，不是你自己的公鑰,
            sign_type="RSA2",  # RSA 或者 RSA2
            debug=settings.ALI_PAY['default']['debug']  # 默認False
        )
        # 調用支付接口
        # 電腦網站支付，需要跳轉到https://openapi.alipay.com/gateway.do? + order_string
        total_pay = order.total_price+order.transit_price # Decimal
        order_string = alipay.api_alipay_trade_page_pay(
            out_trade_no=order_id,  # 訂單id
            total_amount=str(total_pay),
            subject="ForYou-%s" % order_id,
            return_url=settings.ALI_PAY['default']['callback_url'],
            notify_url=settings.ALI_PAY['default']['callback_url']  # 可選, 不填則使用默認notify url
        )
        # 返回應答
        pay_url = 'https://openapi.alipaydev.com/gateway.do?' + order_string
        return JsonResponse({'res': 3, 'pay_url': pay_url})

 

 

查詢支付結果

注意：

• return_url（同步通知Get請求）頁面回跳,用於指定支付寶支付完成后所要跳轉的頁面
• 處理支付寶的notify_url（異步通知），當支付寶完成訂單支付后就會向notify_url發送post請求，告知商戶支付成功

 

 

class CheckPayView(View):
    """查看訂單支付的結果"""

    # return_url（同步通知Get請求）頁面回跳,用於指定支付寶支付完成后所要跳轉的頁面
    def get(self, request):
            """
            處理支付寶的return_url返回
            :param request:
            :return:
            """
            processed_dict = {}
            for key, value in request.GET.items():
                processed_dict[key] = value

            sign = processed_dict.pop("sign", None)

            alipay = AliPay(
                appid=settings.ALI_PAY['default']['app_id'],
                app_notify_url=settings.ALI_PAY['default']['app_notify_url'],
                app_private_key_path=settings.ALI_PAY['default']['app_private_key_path'],
                alipay_public_key_path=settings.ALI_PAY['default']['alipay_public_key_path'],  # 支付寶的公鑰，驗證支付寶回傳消息使用，不是你自己的公鑰,
                debug=settings.ALI_PAY['default']['debug'],  # 默認False,

            )

            verify_re = alipay.verify(processed_dict, sign)

            if verify_re is True:
                order_sn = processed_dict.get('out_trade_no', None)
                trade_no = processed_dict.get('trade_no', None)
                trade_status = processed_dict.get('trade_status')
                while True:
                    response = alipay.api_alipay_trade_query(order_sn)
                    code = response.get('code')

                    if code == '10000' and response.get('trade_status') == 'TRADE_SUCCESS':
                        # 支付成功
                        trade_status = 4  # 待評價
                        exist_orders = OrderInfo.objects.filter(order_id=order_sn)
                        # 支付成功后修改商品銷量
                        for existed_order in exist_orders:
                            existed_order.order_status = trade_status
                            existed_order.trade_no = trade_no
                            existed_order.create_time = datetime.now()
                            existed_order.save()
                        # 返回結果
                        break
                    elif code == '40004' or (code == '10000' and response.get('trade_status') == 'WAIT_BUYER_PAY'):
                        # 等待買家付款
                        # 業務處理失敗，可能一會就會成功
                        import time
                        time.sleep(5)
                        continue
                    else:
                        # 支付出錯
                        break

                response = redirect(settings.ALI_PAY['default']['return_url'])
                return response
            else:
                response = redirect("http://www.relishfruit.com:8000/index")
                return response

    # 處理支付寶的notify_url（異步通知）
    # 當支付寶完成訂單支付后就會向notify_url發送post請求，告知商戶支付成功
    def post(self, request):
        """查詢支付結果"""
        processed_dict = {}
        for key, value in request.GET.items():
            processed_dict[key] = value

        sign = processed_dict.pop("sign", None)

        alipay = AliPay(
            appid=settings.ALI_PAY['default']['app_id'],
            app_notify_url=settings.ALI_PAY['default']['app_notify_url'],
            app_private_key_path=settings.ALI_PAY['default']['app_private_key_path'],
            alipay_public_key_path=settings.ALI_PAY['default']['alipay_public_key_path'],
            # 支付寶的公鑰，驗證支付寶回傳消息使用，不是你自己的公鑰,
            debug=settings.ALI_PAY['default']['debug'],  # 默認False,

        )

        verify_re = alipay.verify(processed_dict, sign)

        if verify_re is True:
            order_sn = processed_dict.get('out_trade_no', None)
            trade_no = processed_dict.get('trade_no', None)
            trade_status = processed_dict.get('trade_status', 1)
            exist_orders = OrderInfo.objects.filter(order_id=order_sn)
            # 支付成功后修改商品銷量
            while True:
                response = alipay.api_alipay_trade_query(order_sn)
                code = response.get('code')

                if code == '10000' and response.get('trade_status') == 'TRADE_SUCCESS':
                    # 支付成功
                    trade_status = 4  # 待評價
                    exist_orders = OrderInfo.objects.filter(order_id=order_sn)
                    # 支付成功后修改商品銷量
                    for existed_order in exist_orders:
                        order_goods = existed_order.ordergoods_set.all()
                        for order_good in order_goods:
                            goods = order_good.sku
                            goods.sales += order_good.count
                            goods.save()
                        existed_order.order_status = trade_status
                        existed_order.trade_no = trade_no
                        existed_order.create_time = datetime.now()
                        existed_order.save()
                    # 返回結果
                    return HttpResponse("success")
                elif code == '40004' or (code == '10000' and response.get('trade_status') == 'WAIT_BUYER_PAY'):
                    # 等待買家付款
                    # 業務處理失敗，可能一會就會成功
                    import time
                    time.sleep(5)
                    continue
                else:
                    # 支付出錯
                    return HttpResponse("支付異常")