平台
点击这里进入
沙箱
点击这里进入
初始界面
设置公钥
下载创建秘钥工具
1. 进入文档中心
2. 选中 电脑网站支付
3. 进入后选中 API 列表 中的 统一收单下单并支付页面接口
4. 进入后点击 sign 的 签名
5. 进入后选择第一步, 然后选择 windows 下载工具
生成秘钥
下载解压后运行
会自动保存两份 txt, 这两个文件一定要妥善保管
保存秘钥
将两个文件要做个修改, 最前和最后加上这两行, 且不要用中文命名
-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----
将两个文件保存在在项目文件的订单程序下
同时再吧页面上的支付宝公钥复制下来保存在自己的项目中, 和上面类似的格式
设置公钥
注意是公钥,
订单URL 生成
目录结构
订单URL 生成逻辑文件
详细的API对接处理 (内含所有的详细的参数选择)
相关的 python 实现代码 github 上都有,详情
Python 官方没有提供指引, 可以使用此文件代码来实现 url 的生成
# _*_ coding:utf-8 _*___author__ = "yangtuo"__date__ = "2019/4/24 16:25"# -*- coding: utf-8 -*-# pip install pycryptodomefrom datetime import datetimefrom Crypto.PublicKey import RSAfrom Crypto.Signature import PKCS1_v1_5from Crypto.Hash import SHA256from base64 import b64encode, b64decodefrom urllib.parse import quote_plusfrom urllib.parse import urlparse, parse_qsfrom urllib.request import urlopenfrom base64 import decodebytes, encodebytesimport jsonclass 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 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()) 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): biz_content = { "subject": subject, "out_trade_no": out_trade_no, "total_amount": total_amount, "product_code": "FAST_INSTANT_TRADE_PAY", # "qr_pay_mode":4 } 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): 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): data.pop("sign", None) # 排序后的字符串 unsigned_items = self.ordered_data(data) unsigned_string = "&".join("{0}={1}".format(k, v) for k, v in unsigned_items) sign = self.sign(unsigned_string.encode("utf-8")) # ordered_items = self.ordered_data(data) 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 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 signer = PKCS1_v1_5.new(key) 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×tamp=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] alipay = AliPay( appid="", app_notify_url="http://127.0.0.1:8000/alipay/return/", app_private_key_path="../trade/keys/private_2048.txt", alipay_public_key_path="../trade/keys/alipay_key_2048.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=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)) url = alipay.direct_pay( subject="测试订单2", out_trade_no="20170202sss", total_amount=100, return_url="http://127.0.0.1:8000/alipay/return/" ) re_url = "https://openapi.alipaydev.com/gateway.do?{data}".format(data=url) print(re_url) https://openapi.alipaydev.com/gateway.do?app_id=2016100100636029&biz_content=%7B%22subject%22%3A%22%5Cu6d4b%5Cu8bd5%5Cu8ba2%5Cu53552%22%2C%22out_trade_no%22%3A%2220170202sss%22%2C%22total_amount%22%3A100%2C%22product_code%22%3A%22FAST_INSTANT_TRADE_PAY%22%7D&charset=utf-8&method=alipay.trade.page.pay¬ify_url=http%3A%2F%2F127.0.0.1%3A8000%2Falipay%2Freturn%2F&return_url=http%3A%2F%2F127.0.0.1%3A8000%2Falipay%2Freturn%2F&sign_type=RSA2×tamp=2019-04-24+16%3A40%3A17&version=1.0&sign=w4mdZOool9ne634Hf59g%2FV9cjj7ctzp37D5fs0U9xvOrDOBih%2FkpwrMXyWj5oVk%2FGETPx0RT7AkyOmnNSdF%2BTOCHkF4BAhABhbKLvaQfUqRdwIqGgvSKt18GGHVweg3BMh0hkrfzEuREVNkZlH2BpYD0UP5FS2PTVd90YnBJaWcJ%2BGyhizF5qlOAYIYFghbx9EKKo5e37peq%2BiVzme6Yui0FW%2ByGbtb54V2Slbo0iaPFq67pVUeBk%2BGprov6hBNxaVsz8O069z7IcIlzwFaSkYVxPB5dSAa6UWhMwCOdqMcO90LWCAhYYeF5yS%2BzJa1Mp95gQhHNTP2L5WfYp4T0uQ%3D%3D
订单付款
订单付款界面
基于alipay.py 中的参数进行相关的设置之后生成的 url 访问即可进入付款界面
付款账号
沙箱环境的付款只能基于特定的账号或者指定的 沙箱支付宝软件才可以进行付款操作, 利用此账号付款后会基于是否设置回调决定下一步操作
付款成功回调
回调基于 return_url 以及 notify_url 两字段都是非必填, 如果不设置支付成功后悔进入成功页面无任何跳转即回调
return_url 同步接口
此跳转只在 PC 上支付成功后实现跳转, 只支持当前一次的请求处理
用户支付完成后, 支付宝基于此参数, 通过 GET 请求形式将部分支付结果参数通知到商户系统
notify_url 异步接口
允许订单的异步请求, 实现订单的延迟或者另外平台的后续付款请求
用户支付完成后, 支付宝基于此参数, 通过 POST 请求形式将部分支付结果参数通知到商户系统
简述总结
notify_url 是支付宝模拟post数据给你,只要状态改变就会post给你
return_url 是跳转,用户付款后跳转到你的页面.只有第一次会通知你,以后不会了.
订单状态
订单状态是支付宝指定的4种, 在自己的代码中的订单model 的订单状态字段也最好遵循
ORDER_STATUS = ( ("TRADE_SUCCESS", "成功"), ("TRADE_CLOSED", "超时关闭"), ("WAIT_BUYER_PAY", "交易创建"), ("TRADE_FINISHED", "交易结束"), ("paying", "待支付"), ) pay_status = models.CharField(choices=ORDER_STATUS, default="paying", max_length=30, verbose_name="订单状态") 视图编写
前面又说两个 URL 的请求方式不同, 因此我们基于此进行区分, 然后通过在request 中取到相关的字段完成数据库的更新以及相关的跳转
return_url 最常见的请求是返回商户, 或者返回首页
notify_url 需要回传一个 "success" 信息给支付宝, 不然支付宝会一直像我们发送信息提示 ( 24h22m,8次 )
具体代码
# 支付宝支付class AlipayView(APIView): # 没有 model 就直接 APIView 就可以了 # 处理支付宝的return_url返回 def get(self, request): processed_dict = {} for key, value in request.GET.items(): processed_dict[key] = value sign = processed_dict.pop("sign", None) alipay = AliPay( appid="20xxxxxxx029", app_notify_url="http://127.0.0.1:8000/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://127.0.0.1:8000/alipay/return/" ) 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', 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") response.set_cookie("nextPath", "pay", max_age=3) return response else: response = redirect("index") return response # 处理支付宝的notify_url def post(self, request): processed_dict = {} for key, value in request.POST.items(): processed_dict[key] = value sign = processed_dict.pop("sign", None) alipay = AliPay( appid="20xxxxxxx029", app_notify_url="http://127.0.0.1:8000/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://127.0.0.1:8000/alipay/return/" ) verify_re = alipay.verify(processed_dict, sign) if verify_re is True: order_sn = processed_dict.get('out_trade_no', None) # 商户网站唯一订单号 trade_no = processed_dict.get('trade_no', None) # 支付宝交易流水号 trade_status = processed_dict.get('trade_status', None) # 支付宝订单状态 # 查询本地是否有此订单 existed_orders = OrderInfo.objects.filter(order_sn=order_sn) # 更新订单状态 for existed_order in existed_orders: order_goods = existed_order.goods.all() for order_good in order_goods: goods = order_good.goods goods.sold_num += order_good.goods_num goods.save() existed_order.pay_status = trade_status existed_order.trade_no = trade_no existed_order.pay_time = datetime.now() existed_order.save() return Response("success") 其他联调
订单的序列化组件中的 alipay_url 字段生成
# 支付宝相关的字段 alipay_url = serializers.SerializerMethodField(read_only=True) def get_alipay_url(self, obj): alipay = AliPay( appid="", app_notify_url="http://127.0.0.1:8000/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://127.0.0.1:8000/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 事后补充
支付宝改版后新版的支付宝的 return_url 返回数据中不再包含 trade_status, 即无法通过此参数进行订单状态的修改了.
但是 notify_url 不受影响, 对此的解释很大可能是安全问题, 需要商户自行再次进行一个判断状态想的逻辑处理.
修正后源码
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( appid="2016091200490210", app_notify_url="http://115.159.122.64:8000/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://115.159.122.64:8000/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) existed_orders = OrderInfo.objects.filter(order_sn=order_sn) for existed_order in existed_orders: existed_order.trade_no = trade_no existed_order.pay_time = datetime.now() existed_order.save() response = redirect("/index/#/app/home/member/order") # response.set_cookie("nextPath","pay", max_age=3) return response else: response = redirect("index") return response def post(self, request): """ 处理支付宝的notify_url """ # 1. 先将sign剔除掉 processed_dict = {} for key, value in request.POST.items(): processed_dict[key] = value sign = processed_dict.pop("sign", None) # 2. 生成一个Alipay对象 alipay = AliPay( appid="2016091200490210", app_notify_url="http://115.159.122.64:8000/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://115.159.122.64:8000/alipay/return/" ) # 3. 进行验签，确保这是支付宝给我们的 verify_re = alipay.verify(processed_dict, sign) # 如果验签成功 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) # 查询数据库中存在的订单 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，填充支付宝给的交易凭证号。 existed_order.pay_status = trade_status existed_order.trade_no = trade_no existed_order.pay_time = datetime.now() existed_order.save() # 将success返回给支付宝，支付宝就不会一直不停的继续发消息了。 return Response("success")