spring boot 如何配置RequestContextListener

如题，我想在spring boot配置

RequestContextListener，用来初始化项目后加载数据到内存里，但是现在问题是获取的是空指针。我的代码如下：

@Configuration
public class Listener {
       @Bean
       public ServletListenerRegistrationBean<EventListener> getDemoListener(){
           ServletListenerRegistrationBean<EventListener> registrationBean
                                       =new ServletListenerRegistrationBean<>();
           registrationBean.setListener(new RequestContextListener());
   //       registrationBean.setOrder(1);
           return registrationBean;
       }
}

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1个牛币 springboot springboot配置RequestContextListener

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sunjiyun26 LV9 2018年1月8日

in application main method

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

your own listner

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");
        }
    }

评论(0) 最佳答案

sunjiyun26 LV9 2018年1月8日

in application main method

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

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