Spring 引导转换 web.xml 侦听器

Spring boot convert web.xml listener

我正在尝试将我的项目转换为 Spring 引导项目(嵌入 Jetty 的可执行 jar 文件)。 所有都适用于标准示例,但我想将我的旧 web.xml 迁移到 Spring Boot.

我迁移了 Servlet 和过滤器,但我不明白如何迁移过滤器:

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
    <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<listener>
    <listener-class>org.granite.config.GraniteConfigListener</listener-class> 
</listener> 
    <listener>
    <listener-class>org.granite.gravity.websocket.GravityWebSocketDeployer</listener-class>
</listener>

我创建了我的@SpringBootApplication class,我在里面写了所有配置:

@Bean
@Order(1)
public FilterRegistrationBean springSecurityFilterChain() {     
    FilterRegistrationBean filterRegBean = new FilterRegistrationBean();
    DelegatingFilterProxy delegatingFilterProxy = new DelegatingFilterProxy();
    filterRegBean.setFilter(delegatingFilterProxy);
    List<String> urlPatterns = new ArrayList<String>();
    urlPatterns.add("/*");
    filterRegBean.setUrlPatterns(urlPatterns);
    return filterRegBean;
}

谁能告诉我应该如何转换 Listeners?

对于 RequestContext 读取 this

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

当您使用 spring-boot 时,其他侦听器会自动注册,正如 this link 所暗示的那样。

为您自己的听众。

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");
        }
    }

最后有一个link,您可以在其中找到有关侦听器和SpringApplication class 的一些信息。阅读部分

Spring Boot 将自动向 servlet 容器注册以下任何 @Beans 类型:

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

例如,要注册 GravityWebSocketDeployer 这是一个 ServletContextListener 添加一个 @Bean 方法到您的配置 class:

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

另外Spring Boot 将自动注册 HttpServlet 的任何 @Bean 扩展;

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