spring - Programmatic access to properties created by property-placeholder

Question

I'm reading properties file using context:property-placeholder. How can I access them programatically (@Value doesn't work - I don't know property titles at the moment of developing)?

The main problem is I can't change applicationContext.xml file because it's setted up by "parent" framework

ps. It's strange but Environment.getProperty returns null

Answer 1

No you can't. PropertyPlaceholderConfigurer is a BeanFactoryPostProcessor, it is only "alive" during bean creation. When it encounters a ${property} notation, it tries to resolve that against its internal properties, but it does not make these properties available to the container.

That said: similar questions have appeared again and again, the proposed solution is usually to subclass PropertyPlaceHolderConfigurer and make the Properties available to the context manually. Or use a PropertiesFactoryBean