sqlSessionFactory.openSession(true)

public class MybatisUtils {
    private static SqlSessionFactory sqlSessionFactory;
    static{
        try {
            String resources="mybatis-config.xml";
            InputStream inputStream = Resources.getResourceAsStream(resources);
            sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static SqlSession getSqlSessionFactory() {
      //在這里設置為true   以后的增刪改就不用提交事務  默認為false
        return sqlSessionFactory.openSession(true);
    }
}