apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/service/AppService.java/AppService/searchByAppIdOrAppName
class AppService:  public PageDTO<App> searchByAppIdOrAppName(String query, Pageable pageable) {
    Page<App> apps = appRepository.findByAppIdContainingOrNameContaining(query, query, pageable);

    return new PageDTO<>(apps.getContent(), pageable, apps.getTotalElements());
  }