Python代码获取京东商品详情原数据 API 接口（item_get_app）

import requestsimport hashlibimport timeimport loggingimport jsonclass JDItemGetAppAPI:
    def __init__(self, app_key, app_secret, base_url="https://api.jd.com"):
        self.app_key = app_key
        self.app_secret = app_secret
        self.base_url = base_url
        self.access_token = None
        self.token_expires_at = 0
        self.session = requests.Session()

    def _get_access_token(self) -> str:
        """获取访问令牌"""
        if self.access_token and self.token_expires_at > time.time() + 60:
            return self.access_token

        logging.info("获取新的access_token")
        url = f"{self.base_url}/oauth2/token"

        params = {
            "grant_type": "client_credentials",
            "appkey": self.app_key,
            "appsecret": self.app_secret        }

        try:
            response = self.session.get(url, params=params, timeout=10)
            response.raise_for_status()
            result = response.json()

            if "access_token" in result:
                self.access_token = result["access_token"]
                self.token_expires_at = time.time() + result.get("expires_in", 86400)  # 默认为24小时
                return self.access_token            else:
                logging.error(f"获取access_token失败: {result.get('error_description', '未知错误')}")
                return None

        except requests.exceptions.RequestException as e:
            logging.error(f"获取access_token请求异常: {str(e)}")
            return None

    def _generate_sign(self, params: dict) -> str:
        """生成签名"""
        sorted_params = sorted(params.items(), key=lambda x: x[0])
        sign_str = self.app_secret        for k, v in sorted_params:
            if k != "sign":
                sign_str += f"{k}{v}"
        sign_str += self.app_secret        return hashlib.sha256(sign_str.encode()).hexdigest().upper()

    def get_item_raw_data(self, sku_id: str, platform: str = "android", area: str = "1_72_2799_0", fields: str = None) -> dict:
        """获取商品原始详情数据"""
        if not self._get_access_token():
            return None

        url = f"{self.base_url}/item/get_app"

        params = {
            "sku_id": sku_id,
            "access_token": self.access_token,
            "platform": platform,
            "area": area,
            "timestamp": int(time.time() * 1000)  # 时间戳，毫秒级
        }

        if fields:
            params["fields"] = fields

        params["sign"] = self._generate_sign(params)

        try:
            response = self.session.get(url, params=params, timeout=20)
            response.raise_for_status()
            result = response.json()

            if result.get("code") == 200:
                return result.get("data", {})
            else:
                logging.error(f"获取商品数据失败: {result.get('message', '未知错误')} (错误码: {result.get('code')})")
                return None

        except requests.exceptions.RequestException as e:
            logging.error(f"获取商品数据请求异常: {str(e)}")
            return Noneif __name__ == "__main__":
    APP_KEY = "your_app_key"
    APP_SECRET = "your_app_secret"

    api = JDItemGetAppAPI(APP_KEY, APP_SECRET)

    item_data = api.get_item_raw_data(
        sku_id="123456789",
        platform="android",
        area="1_72_2799_0"  # 北京地区编码
    )

    if item_data:
        print(f"商品名称: {item_data.get('skuName')}")
        print(f"京东价: {item_data.get('jdPrice', {}).get('p')}")
        print(f"库存状态: {item_data.get('stock', {}).get('stockStateName')}")
    else:
        print("获取商品数据失败")