Junit学习使用

 InputStream in;
    SqlSessionFactory factory;
    SqlSession session;
    UserDao userDao;

    @BeforeEach
    public void init() throws IOException {
        System.out.println("init....");
         in = Resources.getResourceAsStream("SqlMapConfig.xml");
         factory =new SqlSessionFactoryBuilder().build(in);
        session =factory.openSession();
        userDao = session.getMapper(UserDao.class);

    }
    /**
     * 测试查询所有
     */
    @Test
    public void testFindAll() throws IOException {

        //init();
        System.out.println("test....");
        List<User> users=userDao.findAll();
        for(User user :users)
        {
            System.out.println(user.toString());
        }

    }

    @AfterEach
    public  void close() throws IOException {
        System.out.println("close....");
        in.close();
        session.close();

    }

一开始 before 和after都没有启动，不知道为什么，查了以后

before 和after被beforeEach和afterEach代替了