Spring boot convert web.xml listener

Question

I\'m trying to convert my project to Spring Boot project (executable jar file with Jetty embedded). All works with a standard example but I want migrate my old web.xml to Sp

Answer 1

Also Spring Boot will automatically register any @Bean extend of HttpServlet;

   @Bean
   public ServletRegistrationBean axisServletRegistrationBean() {
      ServletRegistrationBean registration = new ServletRegistrationBean(new AxisServlet(), "/services/*");
      registration.addUrlMappings("*.jws");
      return registration;
   }

Answer 2

For RequestContext read this

 @Bean
    @ConditionalOnMissingBean(RequestContextListener.class)
    public RequestContextListener requestContextListener() {
        return new RequestContextListener();
    }

For the other listener is register automatically when you use spring-boot as this link implies.

For your own listeners.

public class MyAdditionListeners extends SpringBootServletInitializer {

    protected final Log logger = LogFactory.getLog(getClass());

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        WebApplicationContext rootAppContext = createRootApplicationContext(servletContext);
        if (rootAppContext != null) {
            servletContext.addListener(new YourListenerHere());
        }
        else {
            this.logger.debug("No ContextLoaderListener registered, as "
                    + "createRootApplicationContext() did not "
                    + "return an application context");
        }
    }

Finally there is a link in which you can find some information about listeners and SpringApplication class. Read section

Answer 3

Spring Boot will automatically register any @Beans of the following types with the servlet container:

• ServletContextAttributeListener
• ServletRequestListener
• ServletRequestAttributeListener
• HttpSessionAttributeListener
• HttpSessionListener
• ServletContextListener

For example, to register GravityWebSocketDeployer which is a ServletContextListener add a @Bean method to your configuration class:

@Bean
public GravityWebSocketDeployer gravityWebSocketDeployer() {
    return new GravityWebSocketDeployer();
}