Spring和Hibernate，懒惰启动问题

问题描述

嘿，我正在开发一个使用Spring和Hibernate的桌面应用程序，并且我有一个懒惰启动的问题。我查看了网页，并且每个解决方案都与查看模式中的打开会话相关，但我无法使用此模式。我也尝试从 HibernateTemplate 中获取 sessionfactory ，但它向我返回一个断开连接的会话。

我会建议你基本上有两种解决方案：

1. 在访问延迟初始化对象或集合时，让Hibernate会话保持打开状态。这意味着您将不得不在代码中仔细标记事务边界，即open session in view模式。 Spring使这成为可能，但在桌面应用程序中，它不会像Web应用程序那样简单，事务边界更加明显。

关闭在Hibernate中持久化对象的所有惰性初始化。 选项2可能会导致大量不必要的数据库访问和选项1意味着你必须认真研究你的工作流和用例。




希望有帮助！




Hey I am developing an desktop application using Spring and Hibernate, and I have a problem with lazy initiation. I looked in the web and every solution is related to the open session in view pattern, but I can't use this pattern. I've also tried to get the sessionfactory from the HibernateTemplate, but it returns to me a disconnected session.

Does anyone know other solution?

解决方案

I would suggest that you basically have two solutions:

1. Make arrangements to keep a Hibernate session open when you access a lazy-initialized object or collection. That means you're going to have to carefully mark your transaction boundaries in your code, a la the "open session in view" pattern. Spring makes this possible, but in a desktop application it won't be as straightforward as a web application where the transaction boundaries are a little more obvious.

2. Turn off all the lazy-initialization for your persisted objects in Hibernate.

Option 2 could lead to a lot of unnecessary database access, and option 1 means you have to seriously study your workflow and use cases.

Hope that helps!

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