本文实例为大家分享了python支付宝支付示例代码，供大家参考，具体内容如下

项目演示：

1、输入金额

2、扫码支付：

3、支付完成：

一、注册账号

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

二、设置应用公钥

三、代码实现

1、项目结构：

2、把生成的 应用私钥 和 支付宝的公钥 放入keys目录下：

注意：

支付宝公钥

商户私钥

--- 配置商户应用私钥--copy到key目录下

--- 配置支付宝公钥--进入网页-->查看支付宝公钥-->把公钥放到key目录下

但是要做修改：

alipay_public_2048.txt -----BEGIN PUBLIC KEY----- # 加上这行 支付宝的公钥 -----END PUBLIC KEY----- # 同上 app_private_2048.txt -----BEGIN PUBLIC KEY----- #同上 应用的私钥 -----END PUBLIC KEY----- # 同上

3、pay.py 这是从git上找到的支付宝支付接口(PC端支付接口)

in pay.py

from datetime import datetimefrom Crypto.PublicKey import RSAfrom Crypto.Signature import PKCS1_v1_5from Crypto.Hash import SHA256from urllib.parse import quote_plusfrom urllib.parse import urlparse, parse_qsfrom base64 import decodebytes, encodebytesimport json class AliPay(object): """ 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", # "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)

3、路由设置

in urls.py

urlpatterns = [ url(r'^admin/', admin.site.urls), url(r'^page1/', views.page1), url(r'^index/', views.index), url(r'^page2/', views.page2), ]

4、视图设置

in view.py

from django.shortcuts import render, redirect, HttpResponse from utils.pay import AliPay import json import time def get_ali_object(): # 沙箱环境地址：https://openhome.alipay.com/platform/appDaily.htm?tab=info app_id = "2016091100486897" # APPID （沙箱应用） # 支付完成后，支付偷偷向这里地址发送一个post请求，识别公网IP,如果是 192.168.20.13局域网IP ,支付宝找不到，def page2() # 接收不到这个请求 notify_url = "http://47.94.172.250:8804/page2/" # 支付完成后，跳转的地址。 return_url = "http://47.94.172.250:8804/page2/" merchant_private_key_path = "keys/app_private_2048.txt" # 应用私钥 alipay_public_key_path = "keys/alipay_public_2048.txt" # 支付宝公钥 alipay = AliPay( appid=app_id, app_notify_url=notify_url, return_url=return_url, app_private_key_path=merchant_private_key_path, alipay_public_key_path=alipay_public_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 alipay def index(request): return render(request,'index.html') def page1(request): # 根据当前用户的配置，生成URL，并跳转。 money = float(request.POST.get('money')) alipay = get_ali_object() # 生成支付的url query_params = alipay.direct_pay( subject="充气式赵俊明", # 商品简单描述 out_trade_no="x2" + str(time.time()), # 用户购买的商品订单号（每次不一样） 20180301073422891 total_amount=money, # 交易金额(单位: 元 保留俩位小数) ) pay_url = "https://openapi.alipaydev.com/gateway.do?{0}".format(query_params) # 支付宝网关地址（沙箱应用） return redirect(pay_url) def page2(request): alipay = get_ali_object() if request.method == "POST": # 检测是否支付成功 # 去请求体中获取所有返回的数据：状态/订单号 from urllib.parse import parse_qs # name&age=123.... 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] # post_dict有10key： 9 ，1 sign = post_dict.pop('sign', None) status = alipay.verify(post_dict, sign) print('------------------开始------------------') print('POST验证', status) print(post_dict) out_trade_no = post_dict['out_trade_no'] # 修改订单状态 # models.Order.objects.filter(trade_no=out_trade_no).update(status=2) print('------------------结束------------------') # 修改订单状态：获取订单号 return HttpResponse('POST返回') else: params = request.GET.dict() sign = params.pop('sign', None) status = alipay.verify(params, sign) print('==================开始==================') print('GET验证', status) print('==================结束==================') return HttpResponse('支付成功')

5、模板

in index.html

<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Title</title> <link rel="stylesheet" href="dist/css/bootstrap.css" rel="external nofollow" ></head><body> <form action="/page1/" method="POST"> {% csrf_token %} <input type="text" name="money"> <input type="submit" value="去支付" /> </form><script></script></body></html>

6、当你全部设置完，代码只需修改三个地方

git项目地址

(1)、修改APPID

-- 这是你账号的APPID

-- in views.py

def get_ali_object():

app_id = 'xxxxxxx' #你的账号APPID

================================

(2)、换上你的支付宝公钥

(3)、换上你的应用私钥

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。