MyBatis-Plus 有自己动态创建sessionfactory样例吗

public static synchronized SqlSessionFactory CreateSessionFactory(String dbName) throws Exception {

    // 数据库连接
    PooledDataSource dataSource = new PooledDataSource();
    dataSource.setDriver("com.microsoft.sqlserver.jdbc.SQLServerDriver");
    dataSource.setUsername("sa");
    dataSource.setPassword("aaaa");
    dataSource.setUrl("jdbc:sqlserver://127.0.0.1:1433;DatabaseName=kh-platform");

    TransactionFactory transactionFactory = new JdbcTransactionFactory();
    Environment evn = new Environment(dbName,transactionFactory,dataSource);

    Configuration config = new Configuration(evn);
    config.addMapper(QueryMapper.class);

    SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(config);
    sessionFactory.getConfiguration().addInterceptor(new PageInterceptor());
    return sessionFactory;
}