大蟒蛇python教程共享三分钟python搭建支付宝三方支付

目录

• 为什么使用三方支付？
• 支付宝支付的流程
• 配置流程
• 1、获取appid
• 2、在线生成密钥
• 3、获取公钥
• python项目中集成支付宝
• 总结

  from datetime import datetime  from crypto.publickey import rsa  from crypto.signature import pkcs1_v1_5  from crypto.hash import sha256  from urllib.parse import quote_plus  from base64 import decodebytes, encodebytes  import json    class alipay:      """      支付宝支付接口(pc端支付接口)      """        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.importkey(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",          }            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)          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"))          quoted_string = "&".join("{0}={1}".format(k, quote_plus(v)) for k, v in unsigned_items)            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)            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):          key = self.app_private_key          signer = pkcs1_v1_5.new(key)          signature = signer.sign(sha256.new(unsigned_string))          sign = encodebytes(signature).decode("utf8").replace("n", "")          return sign        def _verify(self, raw_content, signature):          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:              data.pop("sign_type")          unsigned_items = self.ordered_data(data)          message = "&".join(u"{}={}".format(k, v) for k, v in unsigned_items)          return self._verify(message, signature)

  def init_alipay():      # 初始化alipay      alipay = alipay(          appid="appid",          app_notify_url="回调地址",          return_url="回调地址",          app_private_key_path="私钥相对路径",          alipay_public_key_path="公钥相对路径",          debug=true  # 支付环境      )      return alipay  

  async def get(self):          alipay = init_alipay()      # 传一个标题  订单号  订单价格      params = alipay.direct_pay("三方广告平台", order_no, money)      url = f"https://openapi.alipaydev.com/gateway.do?{params}"      return self.write(ret_json(url))    # 构建一个回调地址,用于支付成功后回调,在回调地址中可以获取订单号(out_trade_no)、金额(total_amount)、时间戳(timestamp),然后进行处理业务逻辑。