mybatis连接数据库

//1.读取配置文件
InputStream inputStream = Resources.getResourceAsStream(“SqlMapConfig.xml”);
//2.创建SqlSessionFactory工厂
SqlSessionFactoryBuilder sqlSessionFactoryBuilder = new SqlSessionFactoryBuilder();
SqlSessionFactory sqlSessionFactory = sqlSessionFactoryBuilder.build(inputStream);
//3.使用工厂生产SqlSession对象
SqlSession sqlSession = sqlSessionFactory.openSession();
//4.使用SqiSession创建Dao接口的代理对象
UserDao userDao = sqlSession.getMapper(UserDao.class);
//5.使用代理对象执行方法
List users = userDao.findAll();
for (User user: users) {
System.out.println(user);
}
//6.释放资源
sqlSession.close();
inputStream.close();