java定时任务（三）：timerTask定时任务

package scheduleTest;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

public class scheduleTest2 implements ServletContextListener {

    @Override
    public void contextDestroyed(ServletContextEvent arg0) {

    }

    @Override
    /**
     * 启动项目的时候调用
     * @author：tuzongxun
     * @Title: contextInitialized 
     * @Description: TODO 
     * @param @param arg0        
     * @date Jun 3, 2016 12:33:36 PM  
     * @throws
     */
    public void contextInitialized(ServletContextEvent arg0) {
        this.startTask();
    }

    /**
     * 启动方法
     * 
     * @author：tuzongxun
     * @Title: startTask
     * @param
     * @return void
     * @date Jun 3, 2016 12:34:23 PM
     * @throws
     */
    public void startTask() {
        Timer timer = new Timer();
        timer.schedule(new Sche(), 0, 5000);
    }

    /**
     * 定时器类
     * 
     * @author tuzongxun123
     *
     */
    class Sche extends TimerTask {

        @Override
        public void run() {
            Date date = new Date();
            SimpleDateFormat sim = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            String dateStr = sim.format(date);
            System.out.println("这是java定时器3，每五秒执行一次,当前时间：" + dateStr);

        }

    }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:task="http://www.springframework.org/schema/task"
    xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.1.xsd">


</beans>