支付宝沙箱环境配置

https://openhome.alipay.com/platform/appDaily.htm?tab=info

使用支付宝账号进行登陆

Django+Vue打造购物网站(九)

RSA私钥及公钥生成

https://docs.open.alipay.com/291/105971/
下载工具,按文档提示使用

在trade文件夹下新建keys文件夹,新建public.txt和private.txt两个文件
trade/keys/private.txt

-----BEGIN RSA PRIVATE KEY-----
MIIEpAIBAAKCAQEAvRYNqz/3Ye+ewQeRfvLXuAu5N/+bdC3KBj8L63j
-----END RSA PRIVATE KEY-----

trade/keys/public.txt

-----BEGIN RSA PRIVATE KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvRYN
-----END RSA PRIVATE KEY-----

中间的字符串是工具中生成的公钥和私钥(应用公钥)
将应用公钥上传到沙箱应用中
Django+Vue打造购物网站(九)

在新建一个alipay_key.txt文件
trade/keys/alipay_key.txt

-----BEGIN RSA PRIVATE KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCA
-----END RSA PRIVATE KEY-----

中间的是支付宝公钥

支付文档说明
https://docs.open.alipay.com/270

代码实现

首先的安装一个模块

pip install pycryptodome

utils中新建alipay.py

from datetime import datetime
from Crypto.PublicKey import RSA

from Crypto.Signature import PKCS1_v1_5
from Crypto.Hash import SHA256
from base64 import b64encode, b64decode
from urllib.parse import quote_plus
from urllib.parse import urlparse, parse_qs
from urllib.request import urlopen
from base64 import decodebytes, encodebytes

import json


class AliPay(object):
    """
    支付宝支付接口
    """

    def __init__(self, appid, app_notify_url, app_private_key_path,
                 alipay_public_key_path, return_url, debug=False):
        self.appid = appid
        self.app_notify_url = app_notify_url
        # 私钥
        self.app_private_key_path = app_private_key_path
        self.app_private_key = None
        self.return_url = return_url
        with open(self.app_private_key_path) as fp:
            self.app_private_key = RSA.importKey(fp.read())
        # 公钥
        self.alipay_public_key_path = alipay_public_key_path
        with open(self.alipay_public_key_path) as fp:
            self.alipay_public_key = RSA.import_key(fp.read())

        if debug is True:
            self.__gateway = "https://openapi.alipaydev.com/gateway.do"
        else:
            self.__gateway = "https://openapi.alipay.com/gateway.do"

    def direct_pay(self, subject, out_trade_no, total_amount, return_url=None, **kwargs):
        # 请求参数
        biz_content = {
            "subject": subject,
            "out_trade_no": out_trade_no,
            "total_amount": total_amount,
            "product_code": "FAST_INSTANT_TRADE_PAY",
            # "qr_pay_mode":4
        }
        # 允许传递更多参数，放到biz_content
        biz_content.update(kwargs)
        data = self.build_body("alipay.trade.page.pay", biz_content, self.return_url)
        return self.sign_data(data)

    def build_body(self, method, biz_content, return_url=None):
        # build_body主要生产消息的格式
        # 公共请求参数
        data = {
            "app_id": self.appid,
            "method": method,
            "charset": "utf-8",
            "sign_type": "RSA2",
            "timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
            "version": "1.0",
            "biz_content": biz_content
        }

        if return_url is not None:
            data["notify_url"] = self.app_notify_url
            data["return_url"] = self.return_url

        return data

    def sign_data(self, data):
        # 签名
        data.pop("sign", None)
        # 排序后的字符串
        unsigned_items = self.ordered_data(data)
        # 排完序后拼接起来
        unsigned_string = "&".join("{0}={1}".format(k, v) for k, v in unsigned_items)
        # 这里得到签名的字符串
        sign = self.sign(unsigned_string.encode("utf-8"))
        # 对url进行处理
        quoted_string = "&".join("{0}={1}".format(k, quote_plus(v)) for k, v in unsigned_items)

        # 获得最终的订单信息字符串
        signed_string = quoted_string + "&sign=" + quote_plus(sign)
        return signed_string

    # 参数传进来一定要排序
    def ordered_data(self, data):
        complex_keys = []
        for key, value in data.items():
            if isinstance(value, dict):
                complex_keys.append(key)

        # 将字典类型的数据dump出来
        for key in complex_keys:
            data[key] = json.dumps(data[key], separators=(',', ':'))

        return sorted([(k, v) for k, v in data.items()])

    def sign(self, unsigned_string):
        # 开始计算签名
        key = self.app_private_key
        # 签名的对象
        signer = PKCS1_v1_5.new(key)
        # 生成签名
        signature = signer.sign(SHA256.new(unsigned_string))
        # base64 编码，转换为unicode表示并移除回车
        sign = encodebytes(signature).decode("utf8").replace("\n", "")
        return sign

    def _verify(self, raw_content, signature):
        # 开始计算签名
        key = self.alipay_public_key
        signer = PKCS1_v1_5.new(key)
        digest = SHA256.new()
        digest.update(raw_content.encode("utf8"))
        if signer.verify(digest, decodebytes(signature.encode("utf8"))):
            return True
        return False

    def verify(self, data, signature):
        if "sign_type" in data:
            sign_type = data.pop("sign_type")
        # 排序后的字符串
        unsigned_items = self.ordered_data(data)
        message = "&".join(u"{}={}".format(k, v) for k, v in unsigned_items)
        return self._verify(message, signature)


if __name__ == "__main__":
    return_url = 'http://127.0.0.1:8000/?total_amount=100.00&timestamp=2017-08-15+23%3A53%3A34&sign=e9E9UE0AxR84NK8TP1CicX6aZL8VQj68ylugWGHnM79zA7BKTIuxxkf%2FvhdDYz4XOLzNf9pTJxTDt8tTAAx%2FfUAJln4WAeZbacf1Gp4IzodcqU%2FsIc4z93xlfIZ7OLBoWW0kpKQ8AdOxrWBMXZck%2F1cffy4Ya2dWOYM6Pcdpd94CLNRPlH6kFsMCJCbhqvyJTflxdpVQ9kpH%2B%2Fhpqrqvm678vLwM%2B29LgqsLq0lojFWLe5ZGS1iFBdKiQI6wZiisBff%2BdAKT9Wcao3XeBUGigzUmVyEoVIcWJBH0Q8KTwz6IRC0S74FtfDWTafplUHlL%2Fnf6j%2FQd1y6Wcr2A5Kl6BQ%3D%3D&trade_no=2017081521001004340200204115&sign_type=RSA2&auth_app_id=2016080600180695&charset=utf-8&seller_id=2088102170208070&method=alipay.trade.page.pay.return&app_id=2016080600180695&out_trade_no=20170202185&version=1.0'
    o = urlparse(return_url)
    query = parse_qs(o.query)
    processed_query = {}
    ali_sign = query.pop("sign")[0]

    # 测试用例
    alipay = AliPay(
        # 沙箱里面的appid值
        app,
        # notify_url是异步的url
        app_notify_url="http://127.0.0.1:8000/",
        # 我们自己商户的密钥
        app_private_key_path="../trade/keys/private.txt",
        # 支付宝的公钥
        alipay_public_key_path="../trade/keys/alipay_key.txt",  # 支付宝的公钥，验证支付宝回传消息使用，不是你自己的公钥,
        # debug为true时使用沙箱的url。如果不是用正式环境的url
        debug=True,  # 默认False,
        return_url="http://127.0.0.1:8000/alipay/return/"
    )

    for key, value in query.items():
        processed_query[key] = value[0]
    # print (alipay.verify(processed_query, ali_sign))

    # 直接支付:生成请求的字符串。
    url = alipay.direct_pay(
        # 订单标题
        subject="测试订单",
        # 我们商户自行生成的订单号
        out_trade_no="201809270840",
        # 订单金额
        total_amount=100,
        # 成功付款后跳转到的页面，return_url同步的url
        # return_url="http://127.0.0.1:8000/"
    )
    # 将生成的请求字符串拿到我们的url中进行拼接
    re_url = "https://openapi.alipaydev.com/gateway.do?{data}".format(data=url)

    print(re_url)

运行这个文件,点击生成的链接,就跳转到了支付界面
Django+Vue打造购物网站(九)

django集成支付宝

urls.py

# 配置支付宝支付相关接口的url
path('alipay/return/', AlipayView.as_view())

alipay.py

# 把return_url和notify_url都改成远程服务器的地址

return_url="http://xxx.xxx.xxx.xxx:8000/alipay/return/"

app_notify_url="http://xxx.xxx.xxx.xxx:8000/alipay/return/"

settings.py中配置公钥私钥路径

# 支付宝相关的key
private_key_path = os.path.join(BASE_DIR, 'apps/trade/keys/private.txt')
ali_pub_key_path = os.path.join(BASE_DIR, 'apps/trade/keys/alipay_key.txt')

trade/views.py

from datetime import datetime
from utils.alipay import AliPay
from rest_framework.views import APIView
from MxShop.settings import ali_pub_key_path, private_key_path
from rest_framework.response import Response


class AlipayView(APIView):
    def get(self, request):
        """
        处理支付宝的return_url返回
        """
        processed_dict = {}
        # 1. 获取GET中参数
        for key, value in request.GET.items():
            processed_dict[key] = value
        # 2. 取出sign
        sign = processed_dict.pop("sign", None)

        # 3. 生成ALipay对象
        alipay = AliPay(
            app,
            app_notify_url="http://xxx.xxx.xxx.xxx:8000/alipay/return/",
            app_private_key_path=private_key_path,
            alipay_public_key_path=ali_pub_key_path,  # 支付宝的公钥，验证支付宝回传消息使用，不是你自己的公钥,
            debug=True,  # 默认False,
            return_url="http://xxx.xxx.xxx.xxx:8000/alipay/return/"
        )

        verify_re = alipay.verify(processed_dict, sign)

        # 这里可以不做操作。因为不管发不发return url。notify url都会修改订单状态。
        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', None)

            existed_orders = OrderInfo.objects.filter(order_sn=order_sn)
            for existed_order in existed_orders:
                existed_order.pay_status = trade_status
                existed_order.trade_no = trade_no
                existed_order.pay_time = datetime.now()
                existed_order.save()

    def post(self, request):
        """
        处理支付宝的notify_url
        """
        # 存放post里面所有的数据
        processed_dict = {}
        # 取出post里面的数据
        for key, value in request.POST.items():
            processed_dict[key] = value
        # 把signpop掉，文档有说明
        sign = processed_dict.pop("sign", None)

        # 生成一个Alipay对象
        alipay = AliPay(
            app,
            app_notify_url="http://xxx.xxx.xxx.xxx:8000/alipay/return/",
            app_private_key_path=private_key_path,
            alipay_public_key_path=ali_pub_key_path,  # 支付宝的公钥，验证支付宝回传消息使用，不是你自己的公钥,
            debug=True,  # 默认False,
            return_url="http://xxx.xxx.xxx.xxx:8000/alipay/return/"
        )

        # 进行验证
        verify_re = alipay.verify(processed_dict, sign)

        # 如果验签成功
        if verify_re is True:
            # 商户网站唯一订单号
            order_sn = processed_dict.get('out_trade_no', None)
            # 支付宝系统交易流水号
            trade_no = processed_dict.get('trade_no', None)
            # 交易状态
            trade_status = processed_dict.get('trade_status', None)

            # 查询数据库中订单记录
            existed_orders = OrderInfo.objects.filter(order_sn=order_sn)
            for existed_order in existed_orders:
                # 订单商品项
                order_goods = existed_order.goods.all()
                # 商品销量增加订单中数值
                for order_good in order_goods:
                    goods = order_good.goods
                    goods.sold_num += order_good.goods_num
                    goods.save()

                # 更新订单状态
                existed_order.pay_status = trade_status
                existed_order.trade_no = trade_no
                existed_order.pay_time = datetime.now()
                existed_order.save()
            # 需要返回一个'success'给支付宝，如果不返回，支付宝会一直发送订单支付成功的消息
            return Response("success")

trade/serializers.py

创建订单的时候生成一个支付的url，这个逻辑OderSerializer和OrderDetailSerializer中都添加

 #支付订单的url
    alipay_url = serializers.SerializerMethodField(read_only=True)

    def get_alipay_url(self, obj):
        alipay = AliPay(
            app,
            app_notify_url="http://4xx.xxx.xxx.xx59:8000/alipay/return/",
            app_private_key_path=private_key_path,
            alipay_public_key_path=ali_pub_key_path,  # 支付宝的公钥，验证支付宝回传消息使用，不是你自己的公钥,
            debug=True,  # 默认False,
            return_url="http://4xx.xxx.xxx.xx59:8000/alipay/return/"
        )

        url = alipay.direct_pay(
            subject=obj.order_sn,
            out_trade_no=obj.order_sn,
            total_amount=obj.order_mount,
        )
        re_url = "https://openapi.alipaydev.com/gateway.do?{data}".format(data=url)

        return re_url

服务器测试

把vue项目中api.js里面local_host改为服务器ip

let local_host = 'http://47.93.198.159:8000';

在pycharm中调用服务器的解释器运行代码

浏览器访问地址：http://47.93.198.159:8000/orders/

输入数据进行测试

进入返回的alipay的url进行测试

测试的时候发现,明明支付成功了,数据库中的状态却没了,
既不是paying,也不是TRADE_SUCCESS,就是一个空字符串
这是因为支付宝的同步跳转参数中没有支付状态,而我们却在get请求中去获取这个参数
这里需要将get函数中的获取交易状态删除(注释掉)
https://docs.open.alipay.com/270/alipay.trade.page.pay

# trade_status = processed_dict.get('trade_status', None)

vue静态文件放到django中

运行npm run build会生成一个dist目录,打开这个目录

把index.html拷贝到templates目录下
把index.entry.js考到django的static目录下面
把dist/static下的两个文件夹拷贝到static目录下
修改js路径

配置index的url

复制代码
from django.views.generic import TemplateView

    # 首页
    path('index/', TemplateView.as_view(template_name='index.html'),name='index')

配置支付成功return的地址

        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', None)

            existed_orders = OrderInfo.objects.filter(order_sn=order_sn)
            for existed_order in existed_orders:
                # existed_order.pay_status = trade_status
                existed_order.trade_no = trade_no
                existed_order.pay_time = datetime.now()
                existed_order.save()

            response = redirect("/index/#/app/home/member/order")
            return response
        else:
            response = redirect("index")
            return response

同步到服务器,浏览器访问进行测试
http://IP:8000/index/#/app/home/index

class AlipayView(APIView)

from datetime import datetime
from utils.alipay import AliPay
from rest_framework.views import APIView
from MxShop.settings import ali_pub_key_path, private_key_path
from rest_framework.response import Response


class AlipayView(APIView):
    def get(self, request):
        """
        处理支付宝的return_url返回
        """
        processed_dict = {}
        # 1. 获取GET中参数
        for key, value in request.GET.items():
            processed_dict[key] = value
        # 2. 取出sign
        sign = processed_dict.pop("sign", None)

        # 3. 生成ALipay对象
        alipay = AliPay(
            app,
            app_notify_url="http://120.79.65.88:8000/alipay/return/",
            app_private_key_path=private_key_path,
            alipay_public_key_path=ali_pub_key_path,  # 支付宝的公钥，验证支付宝回传消息使用，不是你自己的公钥,
            debug=True,  # 默认False,
            return_url="http://120.79.65.88:8000/alipay/return/"
        )

        verify_re = alipay.verify(processed_dict, sign)

        # 这里可以不做操作。因为不管发不发return url。notify url都会修改订单状态。
        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', None)

            existed_orders = OrderInfo.objects.filter(order_sn=order_sn)
            for existed_order in existed_orders:
                # existed_order.pay_status = trade_status
                existed_order.trade_no = trade_no
                existed_order.pay_time = datetime.now()
                existed_order.save()

            response = redirect("/index/#/app/home/member/order")
            return response
        else:
            response = redirect("index")
            return response

    def post(self, request):
        """
        处理支付宝的notify_url
        """
        # 存放post里面所有的数据
        processed_dict = {}
        # 取出post里面的数据
        for key, value in request.POST.items():
            processed_dict[key] = value
        # 把signpop掉，文档有说明
        sign = processed_dict.pop("sign", None)

        # 生成一个Alipay对象
        alipay = AliPay(
            app,
            app_notify_url="http://120.79.65.88:8000/alipay/return/",
            app_private_key_path=private_key_path,
            alipay_public_key_path=ali_pub_key_path,  # 支付宝的公钥，验证支付宝回传消息使用，不是你自己的公钥,
            debug=True,  # 默认False,
            return_url="http://120.79.65.88:8000/alipay/return/"
        )

        # 进行验证
        verify_re = alipay.verify(processed_dict, sign)

        # 如果验签成功
        if verify_re is True:
            # 商户网站唯一订单号
            order_sn = processed_dict.get('out_trade_no', None)
            # 支付宝系统交易流水号
            trade_no = processed_dict.get('trade_no', None)
            # 交易状态
            trade_status = processed_dict.get('trade_status', None)

            # 查询数据库中订单记录
            existed_orders = OrderInfo.objects.filter(order_sn=order_sn)
            for existed_order in existed_orders:
                # 订单商品项
                order_goods = existed_order.goods.all()
                # 商品销量增加订单中数值
                for order_good in order_goods:
                    goods = order_good.goods
                    goods.sold_num += order_good.goods_num
                    goods.save()

                # 更新订单状态
                existed_order.pay_status = trade_status
                existed_order.trade_no = trade_no
                existed_order.pay_time = datetime.now()
                existed_order.save()
            # 需要返回一个'success'给支付宝，如果不返回，支付宝会一直发送订单支付成功的消息
            return Response("success")