请问怎么在服务器启动时执行某段代码

[zjy30015563]

用的tomcat,想在服务器启动时执行某段代码,改怎么办

[Mainstream_Code]

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
        xmlns="http://java.sun.com/xml/ns/javaee" 
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
        http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
        
  <listener>
        <listener-class>com.MyServletContextListener</listener-class>
  </listener>
  
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

package com;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

/**
 * 初始化加载
 * @author xuhe
 *
 */
public class MyServletContextListener implements ServletContextListener {

        public void contextInitialized(ServletContextEvent arg0) {
                System.out.println("初始化加载");
        }

        public void contextDestroyed(ServletContextEvent sce) {

        }
}

[zjy30015563]

非常感谢