Question

i am using spring framework & messageSource & PropertyPlaceholderConfigurer to deal with property files
and i want to so something like the following ?

key.num1=value1
key.num2= i am using ${key.num1}

in a key read the value of another key.
how to do so ?

Answer 1

Yes. According to the below text from PropertyPlaceholderConfigurer’s JavaDoc

PropertyPlaceholderConfigurer checks simple property values, lists,
maps, props, and bean names in bean references. Furthermore,
placeholder values can also cross-reference other placeholders, like:

rootPath=myrootdir
subPath=${rootPath}/subdir