话不多说,直接上代码,备注非常详细
在view.py
# 导入支付基类
from ljaapp.pay import AliPay
# 设置支付宝公钥私钥
#私钥
app_private_key_string = os.path.join(BASE_DIR,'keys/app_private_2048.txt')
# 公钥
alipay_public_key_string = os.path.join(BASE_DIR,"keys/alipay_public_2048.txt")
# 初始化阿里支付对象
def get_ali_object():
app_id = "2016092600603658"
# 回调网站
return_url = 'http://localhost:8000/ali_back/'
# 实例化对象
alipay = AliPay(
appid = app_id,
app_notify_url=return_url,
return_url=return_url,
# 私钥
app_private_key_path=app_private_key_string,
# 公钥地址
alipay_public_key_path= alipay_public_key_string,
debug=True
)
return alipay
# 支付网址视图
def ali_pay(request):
price = request.GET.get('price')
# orderid = request.GET.get('orderid')
order_number = str(uuid.uuid4())
# 获取实例
alipay = get_ali_object()
# 支付参数
query_params = alipay.direct_pay(
subject='test',
out_trade_no = order_number,
total_amount=price
)
# 拼接网址
pay_url = "https://openapi.alipaydev.com/gateway.do?{0}".format(query_params)
return redirect(pay_url)
# 定义回调方法
def ali_back(request):
# 接收参数
orderid = request.GET.get('out_trade_no')
# 修改订单状态
# orders=.Orders.objects.get(orderid=orderid)
# orders.state = 1
# orders.save()
# 重定向回到订单列表页
return redirect('http://localhost:8080/index')
urls.py
path('ali_pay/',ali_pay ),
path('ali_back/', ali_back),
pay.py
import os
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
import requests
from werkzeug.utils import redirect
from houtaiguanli.settings import BASE_DIR
# from .pay import AliPay
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)
# 请求退款接口
def api_alipay_trade_refund(self,refund_amount,out_trade_no=None,trade_no=None,**kwargs):
# 构造参数体
biz_coutent = {"refund_amount":refund_amount}
# 传递可选参数
biz_coutent.update(**kwargs)
# 判断使用站外还是支付宝订单
if out_trade_no:
biz_coutent['out_trade_no'] = out_trade_no
if trade_no:
biz_coutent['trade_no'] = trade_no
# 构造支付接口地址
data = self.build_body("alipay.trade.refund",biz_coutent)
# 构造url
url = self.__gateway+"?"+self.sign_data(data)
# 请求接口
r = requests.get(url)
html = r.content.decode('utf-8')
return html
vue前端
window.location.href='http://localhost:8000/ali_pay/?price='+this.totalprice;