詳解springboot整合Listener的兩種方式

這篇文章主要介紹了springboot整合Listener的兩種方式,非常不錯，具有一定的參考借鑑價值，需要的朋友可以參考下

1.通過註解

編寫啓動類

package cn.bl;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;
@SpringBootApplication
@ServletComponentScan
public class App {
 public static void main(String[] args) {
 SpringApplication.run(App.class, args);
 }
}

 編寫一個監聽器

package cn.bl.listener;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;
@WebListener
public class FirstListener implements ServletContextListener{
 @Override
 public void contextInitialized(ServletContextEvent sce) {
 System.out.println("init .. ");
 }
 @Override
 public void contextDestroyed(ServletContextEvent sce) {
 System.out.println("desroyed .. ");
 }
}

 當執行App的時候

2.通過函數

package cn.bl.listener;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
public class SecondListener implements ServletContextListener{
 @Override
 public void contextInitialized(ServletContextEvent sce) {
 System.out.println("second servletListener init .. ");
 }
 @Override
 public void contextDestroyed(ServletContextEvent sce) {
 System.out.println("second servletListener destroy .. ");
 }
}

package cn.bl;


import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletListenerRegistrationBean;
import org.springframework.context.annotation.Bean;
import cn.bl.listener.SecondListener;
@SpringBootApplication
public class App2 {
 public static void main(String[] args) {
 SpringApplication.run(App2.class, args);
 }
 @Bean
 public ServletListenerRegistrationBean<SecondListener>getBean(){
 ServletListenerRegistrationBean<SecondListener>bean = new ServletListenerRegistrationBean<>(new SecondListener());
 return bean;
 }
}

總結

以上所述是小編給大家介紹的springboot整合Listener的兩種方式，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回覆大家的。在此也非常感謝大家對神馬文庫網站的支持！