apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/controller/FavoriteController.java/FavoriteController/findFavorites
class FavoriteController:  @GetMapping("/favorites")
  public List<Favorite> findFavorites(@RequestParam(value = "userId", required = false) String userId,
                                      @RequestParam(value = "appId", required = false) String appId,
                                      Pageable page) {
    return favoriteService.search(userId, appId, page);
  }