如何在tomcat启动的时候运行一个Java类
设置个Listener就好了,在web.xml中指定描述。
web.xml其实就是tomcat启动" title="tomcat启动">tomcat启动的时候会读取的一个描述文件,比如访问服务器的时候首页等都可以在里面指定,有相应的tag。这里有解释:http://blog.chinaunix.net/uid-20399471-id-1687965.html
实现这个Listener的接口:
1 public class MyServletContextListener implements ServletContextListener {2
3 @Override
4 public void contextDestroyed(ServletContextEvent arg0) {
5 //Notification that the servlet context is about to be shut down.
6 }
7
8 @Override
9 public void contextInitialized(ServletContextEvent arg0) {
10 // do all the tasks that you need to perform just after the server starts
11
12 //Notification that the web application initialization process is starting
13 }
14
15 }
然后在web.xml中编写listener的标签,添加listener类:
MyTestListener换成自己实现ServletContextListener接口的类名
<listener><listener-class>[package].MyTestListener</listener-class>
</listener>
references:
http://stackoverflow.com/questions/13819773/how-to-run-specific-java-code-on-tomcat-start-or-on-application-deploy
http://stackoverflow.com/questions/158336/is-there-a-way-to-run-a-method-class-only-on-tomcat-startup
http://crunchify.com/how-to-run-java-program-automatically-on-tomcat-startup/
http://blog.sina.com.cn/s/blog_6ea90e4b0100ny3t.html
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