一個簡單的基于sPRing mvc的定時器

所需最少jar

web.xml配置:

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">    <!--Spring applicationContext 載入 -->    <listener>        <listener-class>            org.springframework.web.context.ContextLoaderListener        </listener-class>    </listener>        <!-- Spring ApplicationContext配置文件的路徑*,可使用通配符，多個路徑用*號分隔        此參數用于后面的Spring-Context loader -->    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>classpath:com/timer/config/applicationContext.xml</param-value>    </context-param></web-app>

applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:mvc="http://www.springframework.org/schema/mvc"    xmlns:task="http://www.springframework.org/schema/task"    xmlns:context="http://www.springframework.org/schema/context"     xsi:schemaLocation="       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd       http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd       http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd       http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd"       default-autowire="byName" default-lazy-init="false">            <!-- 定時器開關-->    <task:annotation-driven />       <!-- 啟動Spring MVC的注解功能，完成請求和注解POJO的映射 -->    <mvc:annotation-driven />        <context:component-scan base-package="com.timer" /></beans>

定時器類：

package com.timer.controller;import org.springframework.scheduling.annotation.Scheduled;import org.springframework.stereotype.Component;@Componentpublic class TimerController {        /**       * 每天凌晨清空所有用戶分享數據     */        @Scheduled(cron = "0 53 17 * * ?")       public void clearCustomerShare(){          System.out.println("========================sys");    }  }

//==========================cron表達式：http://rainbowdesert.iteye.com/blog/2107220

由6-7個組成

秒-分-時  天-月-日-年 用空格分開