Mybatis中sqlsession的创建及其sql的使用(代理接口的开发方式)

代码，复制直接使用

    public void test1() throws IOException {

        InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        SqlSession sqlSession = sqlSessionFactory.openSession();

//        DDL方法.重要
        Usermapper mapper = sqlSession.getMapper(Usermapper.class);
        List  all=mapper.findAll();

    }