Creating a new SqlSession

To create a new SqlSession in Java, you first need to obtain a SqlSessionFactory object. This can be done using a configuration file or programmatically. Once you have the SqlSessionFactory, you can use it to create new SqlSession instances.

Here is an example of creating a SqlSession using a configuration file:

// Load configuration file
InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);

// Open new session
SqlSession sqlSession = sqlSessionFactory.openSession();

Alternatively, you can create a SqlSessionFactory programmatically and use it to create a new SqlSession:

// Create configuration object
Configuration config = new Configuration();
config.setJdbcUrl("jdbc:mysql://localhost:3306/mydatabase");
config.setUsername("username");
config.setPassword("password");

// Create SqlSessionFactory
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(config);

// Open new session
SqlSession sqlSession = sqlSessionFactory.openSession();

Remember to close the SqlSession when you are finished using it, to release resources:

sqlSession.close();