Printing all properties set via Spring PropertyPlaceholderConfigurer

Question

I’d like to print the consolidated list of properties set in our application on startup. What is the best way to do this?

Thanks

Answer 1

This is my implementation:

public class CustomPropertySourcesPlaceholderConfigurer extends PropertySourcesPlaceholderConfigurer implements InitializingBean{

    public void afterPropertiesSet(){
        try{
            Properties loadedProperties = this.mergeProperties();
            for(Entry<Object, Object> singleProperty : loadedProperties.entrySet()){
                logger.info("LoadedProperty: "+singleProperty.getKey()+"="+singleProperty.getValue());
            }
        }catch(Exception ex){
            ex.printStackTrace();
        }
    }
}

Answer 2

Use a custom PropertyPlaceholderConfigurer implementation that overrides the resolve... methods and logs the placeholder name. You may also need/want to override the convert... methods, but resolve... should handle it.