请问怎么在服务器启动时执行某段代码
用的tomcat,想在服务器启动时执行某段代码,改怎么办

[解决办法]

XML 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>