Get spring application context on a ServletContextListener

Question

I am trying to get the spring application context on a ServletContextListener. I am using Spring with annotation configuration. Using this code i get "context null". What I am doing wrong?

@WebListener
public class Initializer implements ServletContextListener
{   
    public void contextInitialized(ServletContextEvent event)
    {
        System.out.println("context " + WebApplicationContextUtils.getWebApplicationContext(event.getServletContext()));
    }

    @Override
    public void contextDestroyed(ServletContextEvent sce)
    {
    }
}

Thanks

Your ordering of the listeners is wrong. The ContextLoaderListener should be executed before this listener. — M. Deinum
– M. Deinum, Commented Sep 20, 2017 at 10:21

Plebios · Accepted Answer · 2017-09-20 11:24:18Z

2

The key for fix the problem has been delete the annotation @WebListener and on WebAppInitializer override onStartup to ensure that the ContextLoaderListener is loaded before Initializer

public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer
{
.
.
.
    @Override
    public void onStartup(ServletContext container) throws ServletException
    {
        super.onStartup(container);
        container.addListener(Initializer.class);
    }
}

answered Sep 20, 2017 at 11:24

Plebios

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