使用Spring事务管理与使用Hibernate的好处

问题描述

我一直在努力学习spring和hibernate，并且我已经在网络上使用了很多示例来组合一个很好的应用程序。不过，我现在意识到Spring支持事务管理。在我的春季应用程序中，我只是简单地拨打我想要的任何电话，直接进入休眠状态。是否有理由/利益为什么人们会使用Spring的事务管理/数据库的东西？

I've been trying to learn spring and hibernate, and I've used a lot of examples around the net to put together a nice application. However, I realized now that Spring supports transaction management. In my spring app I just simply made whatever calls I wanted to, directly to hibernate. Is there a reason/benefit as to why people would use Spring's transaction management/db stuff?

推荐答案

真正的优点是：

• 轻量级声明式语法。比较：

• Lightweight declarative syntax. Compare:

public void saveEmployee(Employee e) {
    Session s = sf.getCurrentSession();
    s.getTransaction().begin();
    s.save(e);
    s.getTransaction().commit();
}

和

@Transactional
public void saveEmployee(Employee e) {
    sf.getCurrentSession().save(e);
}

灵活的交易传播。想象一下，现在您需要执行这个 saveEmployee（）方法作为复杂事务的一部分。通过手动事务管理，您需要更改方法，因为事务管理是硬编码的。使用Spring，事务传播平稳运行：

Flexible transaction propagation. Imagine that now you need to execute this saveEmployee() method as a part of a complex transaction. With manual transaction management, you need to change the method since transaction management is hard-coded. With Spring, transaction propagation works smoothly:

@Transactional
public void hireEmployee(Employee e) {
    dao.saveEmployee(e);
    doOtherStuffInTheSameTransaction(e);
}

例外时自动回滚

Automatic rollback in the case of exceptions

这篇关于使用Spring事务管理与使用Hibernate的好处的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！