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整合 Listener

1，通过注解扫描完成 Listener 组件的注册

1 编写 Listener

/** * springBoot整合Listener * *<listener> *<listener-class>com.bjsxt.listener.FirstListener</listener-class> *</listener> */@WebListenerpublic class FirstListener implements ServletContextListener {@Overridepublic void contextDestroyed(ServletContextEvent arg0) {// TODO Auto-generated method stub}@Overridepublic void contextInitialized(ServletContextEvent arg0) {System.out.println("Listener...init......");}}

2 编写启动类

/** * springBoot整合Listener方式一 * * */@SpringBootApplication@ServletComponentScanpublic class App {public static void main(String[] args) {SpringApplication.run(App.class, args);}} 通过方法完成 Listener 组件注册

1 编写 Listener

/** * springBoot整合Listener方式二。 * * */ public class SecondListener implements ServletContextListener { @Override public void contextDestroyed(ServletContextEvent arg0) { // TODO Auto-generated `在这里插入代码片`method stub }@Overridepublic void contextInitialized(ServletContextEvent arg0) {System.out.println("SecondListener..init....."); }}

2 编写启动类

/** * SpringBoot整合Listener方式二 * * */@SpringBootApplicationpublic class App2 {public static void main(String[] args) {SpringApplication.run(App2.class, args);}/** * 注册listener */@Beanpublic ServletListenerRegistrationBean<SecondListener> getServletListenerRegistrationBean(){ServletListenerRegistrationBean<SecondListener> bean= new ServletListenerRegistrationBean<SecondListener>(new SecondListener());return bean;}}