myssm/src/main/java/cn/star/dao/UsersDao.java

package cn.star.dao;

import cn.star.domian.Users;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository//注入dao数据
//这里是创建一个数据访问层UserDao接口
public interface UsersDao {
    //查询所有用户
    @Select("select * from users")
    public List<Users> findUsers();
    //用户注册
    @Insert("INSERT INTO USERS (username,password) VALUES(#{username},#{password})")
    public void insertUsers(Users users);
    //用户登录
    @Select("select * from users where username=#{username} and password=#{password}")
    public Users login(Users users);

}