Listener、Filter、Servlet与Java Web项目初始化项目例子 源代码

package com.tom.servlet; import java.util.TimerTask; import java.util.concurrent.Executors; import java.util.concurrent.TimeUnit; public class TimerTest { private static int i = 0; public static void initTimer(Long seconds) { TimerTest.schedule(new TimerTask() { public void run() { callUsers(); } }, 0, seconds*1000); } public static void callUsers() { System.out.println("Filter refreshed: " + ++i + " times."); } public static void schedule(TimerTask task, long delay, long period) { Executors.newScheduledThreadPool(1).scheduleAtFixedRate(task, delay, period, TimeUnit.MILLISECONDS); } } class TimerTest01 extends TimerTask { private static int i = 0; @Override public void run() { System.out.println("Servlet refreshed: " + ++i + " times."); } } class TimerTest02 extends TimerTask { private static int i = 0; @Override public void run() { System.out.println("Listener refreshed: " + ++i + " times."); } }