python調用支付寶支付接口詳細示例—附帶Django demo代碼

-----BEGIN PUBLIC KEY-----  # 加上這行          密鑰部分  -----END PUBLIC KEY-----   # 同上

ALIPAY_PUBLIC = os.path.join(BASE_DIR,'alipay_use','alipay','alipay_keys','alipay_public.txt')  APP_PUBLIC = os.path.join(BASE_DIR,'alipay_use','alipay','alipay_keys','app_public.txt')  APP_PRIVATE = os.path.join(BASE_DIR,'alipay_use','alipay','alipay_keys','app_private.txt')

# _*_ coding=utf-8 _*_  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(object):      """      支付寶支付接口(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",              # "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)          # 排序後的字符串          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)            # 獲得最終的訂單信息字符串          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)            # 將字典類型的數據dump出來          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):          # 開始計算簽名          key = self.app_private_key          signer = PKCS1_v1_5.new(key)          signature = signer.sign(SHA256.new(unsigned_string))          # base64 編碼，轉換為unicode表示並移除回車          sign = encodebytes(signature).decode("utf8").replace("n", "")          return sign        def _verify(self, raw_content, signature):          # 開始計算簽名          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")          # 排序後的字符串          unsigned_items = self.ordered_data(data)          message = "&".join(u"{}={}".format(k, v) for k, v in unsigned_items)          return self._verify(message, signature)

from django.contrib import admin  from django.conf.urls import url  from app01 import views      urlpatterns = [      url('admin/', admin.site.urls),      url('index/', views.index),      url('result/', views.pay_result),  # 支付寶處理完成後回調的get請求路由      url('update_order/', views.update_order), # 支付寶處理完成後回調的post請求路由  ]

import time  from urllib.parse import parse_qs  from django.conf import settings  from django.shortcuts import render, redirect, HttpResponse  from django.views.decorators.csrf import csrf_exempt  from alipay_use.alipay.alipay import AliPay      def aliPay():      obj = AliPay(          appid="2016100100642208",                              # 支付寶沙箱裏面的APPID，需要改成你自己的          app_notify_url="http://129.211.29.98/update_order/",  # 如果支付成功，支付寶會向這個地址發送POST請求（校驗是否支付已經完成），此地址要能夠在公網進行訪問，需要改成你自己的服務器地址          return_url="http://129.211.29.98/result/",            # 如果支付成功，重定向回到你的網站的地址。需要你自己改，這裡是我的服務器地址          alipay_public_key_path=settings.ALIPAY_PUBLIC,  # 支付寶公鑰          app_private_key_path=settings.APP_PRIVATE,      # 應用私鑰          debug=True,  # 默認False,True表示使用沙箱環境測試      )        # 優化:在settings裏面的設置後使用      # obj = AliPay(      #     appid=settings.APPID,      #     app_notify_url=settings.NOTIFY_URL,      #     return_url=settings.RETURN_URL,      #     alipay_public_key_path=settings.PUB_KEY_PATH,      #     app_private_key_path=settings.PRI_KEY_PATH,      #     debug=True,      # )      return obj      @csrf_exempt  def index(request):      if request.method == "GET":          return render(request, 'index.html')        # 實例化SDK裏面的類AliPay      alipay = aliPay()        # 對購買的數據進行加密      money = float(request.POST.get('price'))  # 保留倆位小數  前端傳回的數據      out_trade_no = "x2" + str(time.time())  # 商戶訂單號   # 訂單號可以有多中生成方式，可以百度一下
      # 1. 在數據庫創建一條數據：狀態（待支付）        query_params = alipay.direct_pay(          subject="充氣式Saber",  # 商品簡單描述 這裡一般是從前端傳過來的數據          out_trade_no=out_trade_no,  # 商戶訂單號  這裡一般是從前端傳過來的數據          total_amount=money,  # 交易金額(單位: 元 保留倆位小數)   這裡一般是從前端傳過來的數據      )      # 拼接url，轉到支付寶支付頁面      pay_url = "https://openapi.alipaydev.com/gateway.do?{}".format(query_params)        return redirect(pay_url)      @csrf_exempt  def update_order(request):      """      支付成功後，支付寶向該地址發送的POST請求（用於修改訂單狀態）      :param request:      :return:      """      if request.method == 'POST':          body_str = request.body.decode('utf-8')          post_data = parse_qs(body_str)            post_dict = {}          for k, v in post_data.items():              post_dict[k] = v[0]            alipay = aliPay()            sign = post_dict.pop('sign', None)          status = alipay.verify(post_dict, sign)          if status:              # 1.修改訂單狀態              out_trade_no = post_dict.get('out_trade_no')              print(out_trade_no)
　　　　　　              # 2. 根據訂單號將數據庫中的數據進行更新                return HttpResponse('支付成功')          else:              return HttpResponse('支付失敗')      return HttpResponse('')      @csrf_exempt  def pay_result(request):      """      支付完成後，跳轉回的地址      :param request:      :return:      """      params = request.GET.dict()      sign = params.pop('sign', None)        alipay = aliPay()        status = alipay.verify(params, sign)        if status:          return HttpResponse('支付成功')      return HttpResponse('支付失敗')

<!DOCTYPE html>  <html lang="en">  <head>      <meta charset="UTF-8">      <title>Title</title>  </head>  <body>    <form action="" method="post">      <input type="text" name="price">      <input type="submit">  </form>    </body>  </html>

--pycryptodome  --urllib  --base64