Spring Profile - Quick Tutorial for Beginners


When we develop applications, we would want to be able to provide different application configuration in different environments? How do you achieve it with Profiles?

You will learn

  • What is a Profile?
  • How do you provide different application configuration in different environments using Profiles?
  • How do you activate beans based on Profiles?
  • What is the default profiles with Spring Boot?

What Is A Profile?

When we create an application, we need to deploy it in different kinds of environments, such as development, QA, staging and production.

The application configuration in each of these environments will be different.

One of the approaches to handling application configuration is to create something called a profile. Spring Boot has the concept of a profile built in.

A Profile answers the question of “How to have different configurations in different environments?”

Spring Boot Profiles

You can define default configuration in application.properties. Environment specific overrides can be configured in specific files:

  • application-dev.properties
  • application-qa.properties
  • application-stage.properties
  • application-prod.properties

Setting A Spring Boot Profile

Here are a couple of ways of setting the active profile:

  • At the time of launching the Java application
    • -Dspring.profiles.active=qa - in the VM properties, OR
  • Do the following in the application.properties file
    • spring.application.profiles=qa.

Depending on which profile is currently the active, the appropriate configuration is picked up.

Using Profiles In Code

A profile can be used in code to define your beans. For example, have a look at the following piece of code:


	@Profile("dev")
	@Bean
	public String devBean() {
		return "I will be available in profile dev";
	}

	@Profile("prod")
	@Bean
	public String prodBean() {
		return "I will be available in profile prod";
	}

The bean devBean() will only be available with the dev profile, as it has been annotated with @Profile("dev"). Similarly, the bean prodBean() is only available with the profile prod.

Do check out our video on the same topic:

image info

Summary

Spring Boot Profiles provides a simple option to have environment specific configuration.

Congratulations! You are reading an article from a series of 50+ articles on Spring, Spring Boot , Hibernate, Full Stack, Cloud and Microservices. We also have 20+ projects on our Github repository. For the complete series of 50+ articles and code examples, click here.

Join 300,000 Learners!

Learn Spring Boot in 10 Steps - FREE Course

Next Steps

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Related Posts

Spring Boot Tutorials for Beginners

At in28Minutes, we are creating a number of tutorials with videos, articles & courses on Spring Boot for Beginners and Experienced Developers. This resources will help you learn and gain expertise at Spring Boot.

Spring and Spring Boot Video Tutorials for Beginners

At in28Minutes, we are creating a number of tutorials with videos, articles & courses on Spring Boot for Beginners and Experienced Developers. Here's a list of video tutorials and courses for you

What is an In Memory Database?

In this article, we understand what the term "In-Memory Database" actually means. We see what scenarios they can be used, and why they are important.

What is an Embedded Server?

In this article, we focus in exploring what an embedded server is, and how they help make application deployment simpler.

Java Tools and Frameworks - Introduction To Maven

In this article, we experience a brief introduction to Maven, and will see how it helps in managing your project dependencies.

Five Tools To Learn as a Java Developer

In this article, we introduce you to five great tools that we recommend every Java Developer to learn.

Five Languages To Learn as a Java Programmer

As a programmer, you want to explore new things. Learning a new language gives you a different perspective when solving problems. What are the 5 languages that a Java developer should explore?

Five Great Frameworks To Try for Java Programmers

As a programmer you want to explore new languages and frameworks. What would be the best frameworks to explore in 2019 for Java Programmers?

Unit Testing Best Practices - with Java and Junit Examples

Unit Testing is often underrated. As far as I am concerned, having good unit tests seperates good projects from bad. In this article, let's look at unit testing best practices in depth. We use examples from Java and JUnit to illustrate the concepts. However, the best practices are applicable irrespective of the programming language used.

Programming Basics - Unit Testing - What Is Mocking?

Mocking is an important concept that is made use of, when writing unit tests. In this article, we explore what mocking is all about, and explore some of the popular Java mocking frameworks in use.