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

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

Title

{% csrf_token %}

Title

{% csrf_token %}

6.  Crypto 模块 的处理