Oracle database insertion problem of Mybatise

when using Mybatise, I use the following code to operate on the database. No error is reported, and it executes successfully, but the database does not find data

@Test//
    public void testInsertUser(){
        SqlSession sqlSession = sessionFactory.openSession();
        UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
        User user = new User(4, "rose", "", 12);
        userMapper.insertUser(user);
        sqlSession.commit();
        sqlSession.close();
    };

in the log

solve!
I don"t seem to have such a situation on Google and Baidu. Their similar problem is that they did not commit the transaction, but here I have committed the transaction, but it is still not possible.

Insert oracle mybatis java

Feb.28,2021

found the reason why the
Mabitis associated interface operates the database. In the mapper.xml mapping file, I wrote the < insert > < / insert > tag as the < select > < / select > tag, which did not report an error, but did not return the number of rows changed


@Test//
    public void testInsertUser(){
        int row = 0;
        SqlSession sqlSession = sessionFactory.openSession();
        UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
        User user = new User(6, "rose", "", 12);
        row = userMapper.insertUser(user);//null
        sqlSession.commit();
        sqlSession.close();
        System.out.println(row);
    };

because it is a query tag, natural data will not be submitted

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