Mybatis加載配置文件從而操作數據庫

首先，我們需要加載mybatis的配置文件

InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");

然後，我們需要獲取SqlSessionFactory

SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(inputStream);

然後，我們需要獲取SqlSession

SqlSession sqlSession = sessionFactory.openSession();

然後就是操作數據庫

EmployeeMapper mapper = sqlSession.getMapper(EmployeeMapper.class);
Employee employee = mapper.queryOneById(3);
System.out.println(employee);

最後關閉資源

sqlSession.close();