春季propertySource

Question

I am working on a legacy application here and I am trying to use the Spring @PropertySource annotation.

The problem I am facing is the file name is build.dev.properties and my configuration is:

@PropertySource("classpath:build.${target_env}.properties")

target_env is set to Dev so it looks for build.Dev.Properties which does not exists , I can't change the name of the file or the target_env is there a way I can have in property source to ignore the casing.

Answer 1

The String you supply can contain Spring Expression Language, I am just guessing but you can try

@PropertySource("classpath:build.${target_env.toLowerCase()}.properties")

or

@PropertySource("classpath:build.${target_env}.toLowerCase().properties")