SpringMVC添加定时器

本章讲解springMVC中实现定时器，此时基于上一章eclipse搭建springmvc项目框架

文件结构

定时器所需jar

aopalliance-1.0.jar

步骤

1、springMVC-servlet.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task"
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/mvc  
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd  
    http://www.springframework.org/schema/task   
    http://www.springframework.org/schema/task/spring-task-3.0.xsd">
<!-- 默认扫描的包路径 -->
<context:component-scan base-package="*" />

<!-- 添加注解驱动 -->
<mvc:annotation-driven />

<!-- 定义跳转的文件的前后缀 -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>

<task:executor id="executor" pool-size="5" />
<task:scheduler id="schedule" pool-size="10" />
<task:annotation-driven executor="executor"
scheduler="schedule" />

</beans>

注：添加了task

2、VendorTask.java

package net.csdn.blog.springmvc.timer;

import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component
public class VendorTask {

// private static Logger log = Logger.getLogger(VendorTask.class);

@Scheduled(fixedDelay = 5000)
public void doSomethingWithDelay() {
System.out.println("I'm doing with delay now!");
}

@Scheduled(fixedRate = 5000)
public void doSomethingWithRate() {
System.out.println("I'm doing with rate now!");
}

@Scheduled(cron = "0/5 * * ? * *")
public void doSomethingWithCron() {
System.out.println("I'm doing with cron now!");
}

}

注：cron效果为服务器启动之后每过5s钟执行一次，具体的写法可参考Spring定时器配置方式

3、效果

此文仅为记录从无到有的过程，以备以后查看。

未完待续...

注：转载请注明来源。

参考文章：Spring定时器配置文章