java - 如何在Spring Boot中注册ServletContextListener

您好，我正在尝试重写旧代码以使用Spring Boot。
我有一个侦听器public class ExecutorListener implements ServletContextListener。

如何为Spring Boot注册此侦听器？
我试过了:

@SpringBootApplication
@ComponentScan
public class Application extends SpringBootServletInitializer {

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        super.onStartup(servletContext);
        servletContext.addListener(new ExecutorListener());
    }

}

但是没有调用contextInitialized方法。

最佳答案

您可以尝试以下几种方法:
明确将ExecutorListener注册为@Bean:

@Bean
public ExecutorListener executorListener() {
   return new ExecutorListener();
}

要么

您可以通过显式创建ServletRegistrationBean进行尝试:

@Bean
public DispatcherServlet dispatcherServlet() {
    DispatcherServlet servlet=new DispatcherServlet();
    servlet.getServletContext().addListener(new ExecutorListener());
    return  servlet;
}

@Bean
public ServletRegistrationBean dispatcherServletRegistration() {
    ServletRegistrationBean registrationBean = new ServletRegistrationBean(dispatcherServlet(), "/rest/v1/*");
    registrationBean
            .setName(DispatcherServletAutoConfiguration.DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME);


    return registrationBean;
}