Question

我正在使用spring hibernate开发一个应用程序，我正在使用HibernateUtil类生成hibernate会话。

  public class HibernateUtil {

private static SessionFactory sessionFactory;

static {
    try {
        Configuration configuration = new Configuration().configure();
        StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().
                applySettings(configuration.getProperties());
        sessionFactory = configuration.buildSessionFactory(builder.build());
    } catch (Throwable ex) {
        // Log the exception. 
        System.err.println("Initial SessionFactory creation failed." + ex);
        throw new ExceptionInInitializerError(ex);
    }
}

public static SessionFactory getSessionFactory() {
    return sessionFactory;
}

}

现在我在春天写了一个计划类，它反复向服务器请求。

 @Scheduled(fixedRate = 3000)
public void sendNotification() {
    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm");
    Date currentDate = new Date();
    System.err.println("Current Date "+dateFormat.format(currentDate));

    List<ImageInfo> listImageInfo = imageInfoDao.getImageOfParticularDate(currentDate);
    if (listImageInfo.size() > 0) {

        List<User> listUser = userDao.getAppUser("1");
        for (ImageInfo imageInfo : listImageInfo) {
            for (User user : listUser) {
               pushNotification(user.getRegId(), pushGroupNumNotification(imageInfo.getGroupNum()),"POST");
            }
        }
    }
}

这是我的Dao功能

 public List getImageOfParticularDate(Date date) {
    List<ImageInfo> imageInfoList = new ArrayList<>();
    try {
        session = getSession();
        imageInfoList = session.createQuery("select img from ImageInfo img where img.active = 0 and  img.publishedTime <:publishedTime   ").setParameter("publishedTime", date).list();
        session.createQuery("update ImageInfo img set img.active = 1 where   img.active = 0  and  img.publishedTime <:publishedTime ").setParameter("publishedTime", date).executeUpdate();
    } catch (Exception ex) {

        ex.printStackTrace();
    } finally {
        session.close();
    }

    return imageInfoList;
}

你可以看到我正在使用getSession（）函数获得hibernate会话。这是我的getSession（）函数，我正在使用HibernateUtil进行会话。

public Session getSession() {
    return HibernateUtil.getSessionFactory().openSession();
 }

现在，由于调度程序在一段时间后经常向服务器请求我得到异常＆＃34;连接太多＆＃34;。你可以看到我在结束时关闭了我的会话。我怎么解决呢？

连接Hibernate太多了

0 个答案: