Spring boot allows to add profile-specific properties files by using application-{myProfileName}.properties pattern.

To load a specific profile property file we can use command line option -Dspring.profiles.active=myProfileName.

The default file application.properties can still be used by not using any -Dspring.profile.active option or by using -Dspring.profiles.active=default. The default properties file can be named as application-default.properties as well.

The properties specified in default application.properties are overridden by the profile-specific file properties.

Example

The default property file

src/main/resources/application.properties

app.window.width=500
app.window.height=400

Profile specific files

src/main/resources/application-dev.properties

app.window.height=300

src/main/resources/application-prod.properties

app.window.width=600
app.window.height=700

Example Application

package com.logicbig.example;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;

@Component
public class ClientBean {
  @Value("${app.window.width}")
  private int width;
  @Value("${app.window.height}")
  private int height;

  @PostConstruct
  private void postConstruct() {
      System.out.printf("width= %s, height= %s%n", width, height);
  }
}

package com.logicbig.example;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class ExampleMain {

  public static void main(String[] args) {
      SpringApplication.run(ExampleMain.class, args);
  }
}

Running

$ mvn spring-boot:run

width= 500, height= 400

$ mvn -Dspring.profiles.active=dev spring-boot:run

width= 500, height= 300

$ mvn -Dspring.profiles.active=prod spring-boot:run

width= 600, height= 700

Example Project

Dependencies and Technologies Used:

• Spring Boot 2.0.5.RELEASE
  Corresponding Spring Version 5.0.9.RELEASE
• spring-boot-starter : Core starter, including auto-configuration support, logging and YAML.
• JDK 1.8
• Maven 3.5.4