有店铺id查详情 没有查所有

RestController RequestMapping(/api/shops) public class ShopController { Autowired private ShopService shopService; /** * 有 shopId - 查单个店铺详情 * 无 shopId - 查所有店铺信息 */ GetMapping public Result getShops(RequestParam(required false) Long shopId) { if (shopId ! null) { // 查单个店铺 ShopVO shop shopService.getShopById(shopId); return Result.success(shop); } else { // 查所有店铺 ListShopVO shopList shopService.getAllShops(); return Result.success(shopList); } } }