支付寶沙箱測試 - 邱乘屹的個人技術博客

話不多說，直接上代碼，備註非常詳細

在view.py

# 導入支付基類
from ljaapp.pay import AliPay

# 設置支付寶公鑰私鑰
#私鑰
app_private_key_string = os.path.join(BASE_DIR,'keys/app_private_2048.txt')
# 公鑰
alipay_public_key_string = os.path.join(BASE_DIR,"keys/alipay_public_2048.txt")


# 初始化阿里支付對象
def get_ali_object():
    app_id = "2016092600603658"
    # 回調網站
    return_url = 'http://localhost:8000/ali_back/'
    # 實例化對象
    alipay = AliPay(
        appid = app_id,
        app_notify_url=return_url,
        return_url=return_url,
        # 私鑰
        app_private_key_path=app_private_key_string,
        # 公鑰地址
        alipay_public_key_path= alipay_public_key_string,
        debug=True
    )
    return alipay
# 支付網址視圖
def ali_pay(request):
    price = request.GET.get('price')
    # orderid = request.GET.get('orderid')

    order_number = str(uuid.uuid4())

    # 獲取實例
    alipay = get_ali_object()
    # 支付參數
    query_params = alipay.direct_pay(
        subject='test',
        out_trade_no = order_number,
        total_amount=price

    )
    # 拼接網址
    pay_url = "https://openapi.alipaydev.com/gateway.do?{0}".format(query_params)

    return redirect(pay_url)

# 定義回調方法
def ali_back(request):
    # 接收參數
    orderid = request.GET.get('out_trade_no')

    # 修改訂單狀態
    # orders=.Orders.objects.get(orderid=orderid)
    # orders.state = 1
    # orders.save()

    # 重定向回到訂單列表頁
    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，轉換爲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)


    # 請求退款接口
    def api_alipay_trade_refund(self,refund_amount,out_trade_no=None,trade_no=None,**kwargs):

        # 構造參數體
        biz_coutent = {"refund_amount":refund_amount}

        # 傳遞可選參數
        biz_coutent.update(**kwargs)

        # 判斷使用站外還是支付寶訂單
        if out_trade_no:
            biz_coutent['out_trade_no'] = out_trade_no

        if trade_no:
            biz_coutent['trade_no'] = trade_no

        # 構造支付接口地址
        data = self.build_body("alipay.trade.refund",biz_coutent)

        # 構造url
        url = self.__gateway+"?"+self.sign_data(data)

        # 請求接口
        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;