loading properties file in spring

Question

One of our team has implemented loading properties this way (see pseudo code below) and advises this approach is right as the client application using this is free to keep t

Answer 1

You can put the properties in any file and still use PropertyPlaceholderConfigurer. Here's an example that satisfies both your coworker's concerns and your desire for environment specific stuff:

    
        
            
            classpath:MyCompany.properties
            
            classpath:MyCompany.${mycompany.env:dev}.properties
            
            classpath:${mycoworker}
            
            file:///${user.home}/MyCompany.properties
        
    
    
    
    
     

If you pass in no -D arguments, then you'll pick up the following properties files, where properties in the later files overwrite previously determined values.

1. MyCompany.properties off the classpath
2. MyCompany.dev.properties off the classpath
3. $HOME/MyCompany.properties if it exists

To swap in a production config for #2, just pass -Dmycompany.env=prod to java. Similarly your coworker can pass -Dmycoworker=/some/path/config.properties if he/she wants.