~~~ public class MybatisFirst1 { // 会话工厂 private SqlSessionFactory sqlSessionFactory; @Before public void createSqlSessionFactory() throws Exception{ // 配置文件 String resource = "sqlMapConfig.xml"; InputStream resourceAsStream = Resources.getResourceAsStream(resource); // 从配置文件中创建SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream); } @Test public void testFindUserById(){ // 会话 SqlSession sqlSession = sqlSessionFactory.openSession(); UserMapper userMapper = sqlSession.getMapper(UserMapper.class); User user = userMapper.findUserById(8); System.out.println(user); sqlSession.close(); } } ~~~