Spring boot configure custom jsessionid for embedded server

Question

I want to configure my servlet context, such as setting a custom jsessionId key (see Changing cookie JSESSIONID name)

I believe I can use the SpringBootServlet

Answer 1

Declare a ServletContextInitializer bean in your application's configuration:

@Bean
public ServletContextInitializer servletContextInitializer() {
    return new ServletContextInitializer() {

        @Override
        public void onStartup(ServletContext servletContext) throws ServletException {
            servletContext.getSessionCookieConfig().setName("yourCookieName");
        }
    };

}

Alternatively, your application class itself can implement ServletContextInitializer:

@Configuration
@EnableAutoConfiguration
@ComponentScan
public class Application implements ServletContextInitializer {

    public static void main(String[] args) throws Exception {
        SpringApplication.run(Application.class, args);
    }

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        servletContext.getSessionCookieConfig().setName("yourCookieName");
    }

}