spring执行定时任务之一<示例>

最新推荐文章于 2025-03-04 02:08:19 发布

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#Spring #Bean #quartz #XML #JDK

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本文介绍如何使用Spring框架执行定时任务，包括通过TimerTask和Quartz两种方式实现的任务调度，并提供了详细的代码实例及配置说明。

spring执行定时任务

定义一个任务是很简单的实现TimerTask的run方法就可以了.
如下: SayHelloTask.java

package test.timerTask;
2

import java.util.TimerTask;
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public class Task extends TimerTask {
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@Override
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public void run() {
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// TODO Auto-generated method stub
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System.out.println("测试TimerTask : Hello !!");
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}
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}

package test.springTimer;
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import java.util.TimerTask;
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public class Task2 extends TimerTask {
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public void run(){
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System.out.println("task2 is running");
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}
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}
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然后是配置文件:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<bean id="timerBean" class="org.springframework.scheduling.timer.TimerFactoryBean">
<property name="scheduledTimerTasks">
<list>
<ref bean="scheduledTask"/>
<ref bean="scheduledTask2"/>
</list>
</property>
</bean>
</beans>

测试类如下: TestApp.java

package test.timerTask;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestApp {

/**

* @param args

public static void main(String[] args) {

// TODO Auto-generated method stub

ApplicationContext context = new ClassPathXmlApplicationContext("test/timerTask/javaTimer.xml");

// ApplicationContext context2 = new ClassPathXmlApplicationContext("test/timerTask/quartzTimer.xml");

}

// 只要加载配置文件就可以了,

}

运行结果：
task2 is running
task2 is running
haha,task is running
haha,task is running
task2 is running
使用Java中的定时器比较简单,其提供的任务也比较简单, 下面来看看使用quartz来执行一个复杂的任务.

package test.timerTask;
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import org.quartz.JobExecutionContext;
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import org.quartz.JobExecutionException;
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import org.springframework.scheduling.quartz.QuartzJobBean;
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public class SayHelloTaskUsingQuartz extends QuartzJobBean {
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@Override
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protected void executeInternal(JobExecutionContext context)
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throws JobExecutionException {
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// TODO Auto-generated method stub
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System.out.println("使用Quartz 认为调度: Hello!!");
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}
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}
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