首先我们编写调度服务,继承java.util.TimerTask

package TimerTest;

import java.util.Date;
import java.util.TimerTask;

public class TimerService extends TimerTask ...{    (文章来源 www.iocblog.net)
    public void run() ...{
        System.out.println(new Date().getSeconds());        
    }
}

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" >
<beans>
  <!-- 配置调度方法 -->
  <bean id="reportTask" class="TimerTest.TimerService"/>
  <!-- 配置定时器任务 -->
  <bean id="scheduledReportTask" class="org.springframework.scheduling.timer.ScheduledTimerTask">
    <property name="timerTask">
      <ref bean="reportTask"/>
    </property>
     <property name="period">
      <value>1000</value>
    </property>

  </bean>
  <!-- 启动定时器 -->
  <bean id="start" class="org.springframework.scheduling.timer.TimerFactoryBean">
    <property name="scheduledTimerTasks">
      <list>
      <ref bean="scheduledReportTask"/>
    </list>
    </property>
  </bean>
</beans>

测试代码：

package TimerTest;

import java.io.File;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;




public class TestTimer ...{

    public static void main(String[] args) ...{

        String filePath=System.getProperty("user.dir")+File.separator+"TimerTest"+File.separator+"hello.xml";
        
        ApplicationContext  context=new FileSystemXmlApplicationContext(filePath);
        
        //如果使用BeanFactory,则必须调用factory.getBean("start"),才能启动调度任务
        
        


    }
}

运行结果：

2007-6-5 23:16:24 org.springframework.context.support.AbstractApplicationContext prepareRefresh
信息: Refreshing org.springframework.context.support.FileSystemXmlApplicationContext@109a4c: display name [org.springframework.context.support.FileSystemXmlApplicationContext@109a4c]; startup date [Tue Jun 05 23:16:24 CST 2007]; root of context hierarchy
2007-6-5 23:16:24 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from file [E:\项目\SpringInActionStudy\TimerTest\hello.xml]
2007-6-5 23:16:24 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
信息: Bean factory for application context [org.springframework.context.support.FileSystemXmlApplicationContext@109a4c]: org.springframework.beans.factory.support.DefaultListableBeanFactory@cd2c3c
2007-6-5 23:16:24 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@cd2c3c: defining beans [reportTask,scheduledReportTask,start]; root of factory hierarchy
2007-6-5 23:16:24 org.springframework.scheduling.timer.TimerFactoryBean afterPropertiesSet
信息: Initializing Timer
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(文章来源 www.iocblog.net)

可以看到，每隔一秒就打印当前时间的秒数

文章整理：iocblog
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