Spring+struts Timer计时器

原文用的是Servlet，后来我改成了spring了 所以 理应是转载，哈哈哈哈

转载：http://blog.csdn.net/yaerfeng/article/details/7089772

参考：http://www.cnblogs.com/hzj-/articles/1689836.html

参考：

首先在web.xml配置

<listener>

<listener-class>cn.xxxxxxxxxxx.utils.InitListener</listener-class>

</listener>

<context-param>

<param-name>startTask</param-name>

<param-value>true</param-value>

</context-param>

<context-param>

<param-name>intervalTime</param-name>

<param-value>3000</param-value> 这里是毫秒 也就是3秒

</context-param>

public class InitListener implements ServletContextListener{
	private Timer timer2; 
	private SendQueryTimer sendQuerytimer;  
	@Override
	public void contextDestroyed(ServletContextEvent sce) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void contextInitialized(ServletContextEvent sce) {
		// 定时器开关  
        String startTask =sce.getServletContext().getInitParameter("startTask"); 
        // 开始运行时间  
        Calendar calendar = Calendar.getInstance();  
        // 缓冲时间(分钟)  
        Long intervalTime = Long.parseLong(sce.getServletContext().getInitParameter("intervalTime"));  

        // 启动定时器  
        if (startTask.equals("true")) {  
            timer2 = new Timer(true);  
            sendQuerytimer = new SendQueryTimer();  
            timer2.schedule(sendQuerytimer, calendar.getTime(),  
                    intervalTime);  
        }  
	}

public class SendQueryTimer extends TimerTask{
	 private static boolean isRunning = true;  
	@Override
	public void run() {
		  if (isRunning) {  
	            new Thread(new SendService()).start();  
	        }  
	}

public class SendService implements Runnable{

	@Override
	public void run() {
		System.out.println("HHHHHHHH");
		
	}

}