How can I change a .properties file in maven depending on my profile?

Question

How can I change a .properties file in maven depending on my profile? Depending on whether the application is built to run on a workstation or the datacenter parts of the f

Answer 1

As often, there are several ways to implement this kind of things. But most of them are variations around the same features: profiles and filtering. I'll show the most simple approach.

First, enable filtering of resources:

  ...
  
    
      
        src/main/resources
        true
      
    
    ...
  

Then, declare a place holder in your src/main/resources/my_config.properties, for example:

myprop1 = somevalue
myprop2 = ${foo.bar}

Finally, declare properties and their values in a profile:

  ...
  
    
      env-dev
      
        
          env
          dev
        
      
      
        othervalue
      
    
    ...
  

And run maven with a given profile:

$ mvn process-resources -Denv=dev
[INFO] Scanning for projects...
...
$ cat target/classes/my_config.properties 
myprop1 = somevalue
myprop2 = othervalue

As I said, there are variation around this approach (e.g. you can place values to filter in files), but this will get you started.

References

• Introduction to Build Profiles
• Maven Resources Filtering

More resources

• A Maven2 multi-environment filter setup
• Maven project filtering
• Using Maven profiles and resource filtering
• Building For Different Environments with Maven 2