Is it possible to know which JEE Container is being used during Dispatcher Servlet startup?

Question

After some difficulties with the use of the Spring Security and JBoss using annotations based on API Servlet 3 (Servlet 3.1 more specifically), I discovered that when using Spring with JBoss, in particular Jboss EAP 6.1+, the mapping of the Dispacher Servlet to the URL "/" simply, it is necessary that such mapping be done to the URL "/*".

To solve such problem I even created a Fork to study such problem, and this is found in the link: https://github.com/carlosdelfino/spring-security/tree/rb4.0.1.RELEASE-JBoss-patch-1, where I have already tested the example "Insecure MVC" and such correction solves the problem.

But I am developing an application that will be executed in several containers, and I’m afraid I may have problems with other resources, so I need to parameterize the Servlet startup.

In this case the Spring offers me some resource to identify which container is running in?

How to do this?

Answer 1

You can create a class to boot the Webapp that implements the interface WebApplicationInitializer.

This interface has a single method that receives a ServletContext and by ServletContext you can get the server name.

public class WebAppInitializer implements WebApplicationInitializer {

    @Override
    public void onStartup(ServletContext context) throws ServletException {
        System.out.println(context.getServerInfo());
    }

}

Console output: