Get spring application environment in thymeleaf

Question

My Spring Boot application runs with 3 configurations:

• application.properties --> for development environment
• application-test.properties --> for test environment
• application-production.properties --> for production environment

How is it possible to get in thymeleaf environment the application is running?

I need to include the Google Analytics code only in production environment.

Answer 1

You can do the following if you only have one profile active at a time.

<div th:if="${@environment.getActiveProfiles()[0] == 'production'}">   This is the production profile - do whatever you want in here </div> 

The code above is based on the fact that the Thymeleaf's Spring dialect lets you access beans using the @ symbol. And of course the Environment object is always available as a Spring bean.

Also note that Environment has the method getActiveProfiles() which returns an array of Strings (that is why [0] is used in my answer) which we can call using standard Spring EL.

If more than one profiles are active at a time, a more robust solution would be to use Thymeleaf's #arrays utility object in order to check for the presence of the string production in the active profiles. The code in that case would be:

<div th:if="${#arrays.contains(@environment.getActiveProfiles(),'production')}">      This is the production profile </div> 

Answer 2

Simply add this class which allows to set global variables for views:

@ControllerAdvice public class BuildPropertiesController {      @Autowired     private Environment env;      @ModelAttribute("isProd")     public boolean isProd() {         return Arrays.asList(env.getActiveProfiles()).contains("production");     } } 

And then use ${isProd} variable in your thymeleaf file:

<div th:if="${isProd}">      This is the production profile </div> 

Or you can set active profile name as a global variable:

@ControllerAdvice public class BuildPropertiesController {      @Autowired     private Environment env;      @ModelAttribute("profile")     public String activeProfile() {         return env.getActiveProfiles()[0];     } } 

And then use ${profile} variable in your thymeleaf file (if you have one active profile):

<div>      This is the <span th:text="${profile}"></span> profile </div>