package com.genersoft.iot.vmp.service; import com.genersoft.iot.vmp.storager.dao.dto.User; import java.util.List; public interface IUserService { User getUser(String username, String password); boolean changePassword(int id, String password); User getUserByUsername(String username); int addUser(User user); int deleteUser(int id); List getAllUsers(); int updateUsers(User user); }