在Spring中动态创建bean [英] Dynamic creation of beans in Spring

问题描述

春天有一种方法，我们可以从数据库表中读取一个bean的字段，并创建一个完整的bean类 - 在服务器启动时使用getter和setter？

我需要这样做使我的应用程序完全可配置...如果我将来添加一个新的字段，我将需要在db中添加一个字段，而bean setter和getter将是

谢谢

解决方案

动态注册bean。您可以使用 BeanDefinitionBuilder 为此目的请参阅此处的示例。但是，如@Darren所说，通过数据库查找来撬动一个bean不是一个明智的主意。

Is there a way in spring wherein we can read the fields of a bean from the DB table and create a complete bean class - with getters and setters on server startup????

I require this to make my application completely configurable...as in if I have to add a new field in future , all I would require would be adding a field in the db and the bean setters and getters would be available to me.

Thanks

解决方案

You could try approaches for dynamically registering beans . You could use the BeanDefinitionBuilder for this purpose . See a sample here . But as @Darren says , It's not a wise idea to creak a bean via DB lookup .

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