京东联盟商品详情接口深度实战：SKU 自动提取 + 字段按需筛选

import requests
import hashlib
import time
import re
import json

class JdGoodsDetailApi:
    def __init__(self, app_key, app_secret):
        self.app_key = app_key
        self.app_secret = app_secret
        self.api_url = "https://api.jd.com/routerjson"
        self.version = "2.0"

    def get_sku_from_url(self, goods_url):
        """从京东商品链接正则提取SKU"""
        res = re.search(r'item\.jd\.com/(\d+)', goods_url)
        return res.group(1) if res else None

    def make_sign(self, params):
        """京东官方MD5签名：ASCII排序+首尾拼接secret+大写MD5"""
        sorted_kv = sorted(params.items(), key=lambda x:x[0])
        sign_src = self.app_secret
        for k,v in sorted_kv:
            sign_src += f"{k}{v}"
        sign_src += self.app_secret
        md5_val = hashlib.md5(sign_src.encode("utf8")).hexdigest().upper()
        return md5_val

    def get_detail(self, goods_url, fields="skuId,title,price,couponInfo,commissionInfo,isJdSelf,picList,spec"):
        sku_id = self.get_sku_from_url(goods_url)
        if not sku_id:
            return {"code":-1,"msg":"链接解析SKU失败"}
        # 公共参数
        params = {
            "app_key":self.app_key,
            "method":"jd.union.open.goods.detail.query",
            "timestamp":time.strftime("%Y-%m-%d %H:%M:%S"),
            "format":"json",
            "v":self.version,
            "fields":fields,
            "skuId":sku_id
        }
        params["sign"] = self.make_sign(params)
        try:
            resp = requests.post(self.api_url, data=params, timeout=12)
            data = resp.json()
            if "error_response" in data:
                return {"code":-2,"msg":data["error_response"]["msg"]}
            res_data = data["jd_union_open_goods_detail_query_response"]["result"]
            item = res_data.get("goodsInfo",{})
            # 结构化价格、佣金、优惠券
            coupon = item.get("couponInfo",{})
            commission = item.get("commissionInfo",{})
            rst = {
                "skuId":item.get("skuId"),
                "title":item.get("title"),
                "market_price":item.get("price"),
                "coupon_price":coupon.get("couponEndPrice"),
                "commission_rate":commission.get("commissionRate"),
                "commission_amt":commission.get("commission"),
                "is_jd_self":item.get("isJdSelf"),
                "main_img":item.get("picList",[{}])[0].get("url")
            }
            time.sleep(1.2)
            return {"code":200,"data":rst}
        except Exception as e:
            return {"code":-3,"msg":f"请求异常:{str(e)}"}

# 调用示例
if __name__ == "__main__":
    AK = "替换你的AppKey"
    AS = "替换你的AppSecret"
    url = "https://item.jd.com/100032568972.html"
    api = JdGoodsDetailApi(AK,AS)
    print(json.dumps(api.get_detail(url),ensure_ascii=False,indent=2))