python-支付宝支付示例
项目演示：
1、输入金额
2、扫码支付：
3、支付完成：
4.跳转回商户
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
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)
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 urllib.parse import urlparse, parse_qs
from base64 import decodebytes, encodebytes
import 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)
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 urllib.parse import urlparse, parse_qs
from base64 import decodebytes, encodebytes
import 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
from django.conf.urls import url
from django.contrib import admin
from app01 import views urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^page1/', views.page1),
url(r'^index/', views.index),
url(r'^page2/', views.page2),
]
from django.conf.urls import url
from django.contrib import admin
from app01 import views 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
from django.shortcuts import render, redirect, HttpResponse
from utils.pay import AliPay
import json
import time def ali():
# 沙箱环境地址：https://openhome.alipay.com/platform/appDaily.htm?tab=info
app_id = "2016091100487127"
# POST请求，用于最后的检测
notify_url = "http://127.0.0.1:8002/page2"
# notify_url = "http://www.wupeiqi.com:8804/page2/" # GET请求，用于页面的跳转展示
return_url ="http://127.0.0.1:8002/page2/"
# return_url = "http://www.wupeiqi.com:8804/page2/" merchant_private_key_path = "keys/app_private_2048.txt"
alipay_public_key_path = "keys/alipay_public_2048.txt" 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):
if request.method == "GET":
return render(request, 'page1.html')
else:
money = float(request.POST.get('money'))
alipay = ali()
# 生成支付的url
query_params = alipay.direct_pay(
subject="充气式韩红", # 商品简单描述
out_trade_no="x2" + str(time.time()), # 商户订单号
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) return redirect(pay_url) def page2(request):
alipay = ali()
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
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]
print(post_dict) sign = post_dict.pop('sign', None)
status = alipay.verify(post_dict, sign)
print('POST验证', status)
return HttpResponse('POST返回') else:
params = request.GET.dict()
sign = params.pop('sign', None)
status = alipay.verify(params, sign)
print('GET验证', status)
return HttpResponse('支付成功')
from django.shortcuts import render, redirect, HttpResponse
from utils.pay import AliPay
import json
import time def ali():
# 沙箱环境地址：https://openhome.alipay.com/platform/appDaily.htm?tab=info
app_id = "2016091100487127"
# POST请求，用于最后的检测
notify_url = "http://127.0.0.1:8002/page2"
# notify_url = "http://www.wupeiqi.com:8804/page2/" # GET请求，用于页面的跳转展示
return_url ="http://127.0.0.1:8002/page2/"
# return_url = "http://www.wupeiqi.com:8804/page2/" merchant_private_key_path = "keys/app_private_2048.txt"
alipay_public_key_path = "keys/alipay_public_2048.txt" 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):
if request.method == "GET":
return render(request, 'page1.html')
else:
money = float(request.POST.get('money'))
alipay = ali()
# 生成支付的url
query_params = alipay.direct_pay(
subject="充气式韩红", # 商品简单描述
out_trade_no="x2" + str(time.time()), # 商户订单号
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) return redirect(pay_url) def page2(request):
alipay = ali()
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
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]
print(post_dict) sign = post_dict.pop('sign', None)
status = alipay.verify(post_dict, sign)
print('POST验证', status)
return HttpResponse('POST返回') else:
params = request.GET.dict()
sign = params.pop('sign', None)
status = alipay.verify(params, sign)
print('GET验证', status)
return HttpResponse('支付成功')
5、模板
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="dist/css/bootstrap.css">
</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>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="dist/css/bootstrap.css">
</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. Crypto 模块 的处理
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