public class SqlSessionFactoryUtils { private static SqlSessionFactory sqlSessionFactory; static { //静态代码块会随着类的加载而自动执行，且只执行一次 try { String resource = "mybatis-config.xml"; InputStream inputStream = Resources.getResourceAsStream(resource); sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream); } catch (IOException e) { e.printStackTrace(); } } public static SqlSessionFactory getSqlSessionFactory(){ return sqlSessionFactory; }}