java定時任務的實現

package com.ucap.sms;import java.util.Timer;import javax.servlet.ServletContextEvent;import javax.servlet.ServletContextListener;public class SmsListener implements ServletContextListener{    private Timer timer=null;    public void contextDestroyed(ServletContextEvent sce) {        timer.cancel();    }    public void contextInitialized(ServletContextEvent sce) {        timer=new Timer(true);
　　　　　//設定任務計劃，啟動和間隔時間        timer.schedule(new NoteReplyTask(), 0, 86400000);    }}

import java.util.TimerTask;public class MyTask extends TimerTask {  public void run() {    // System.out.println("call at " + (new Date()));    // TODO 此處添加具體任務代碼  }}

webXml配置

<listener><listener-class>com.fastunit.samples.listener.MyListener</listener-class></listener>