public void save(City country) {
if (country.getId() != null) {
cityMapper.updateByPrimaryKey(country);
} else {
cityMapper.insert(country);
}
}
public List<City> getAll(City city) {
if (city.getPage() != null && city.getRows() != null) {
PageHelper.startPage(city.getPage(), city.getRows(), "id");
}
return cityMapper.selectAll();
}