转自:http://blog.csdn.net/daryl715/article/details/1639876
首先我们编写调度服务,继承java.util.TimerTask
import java.util.Date;
import java.util.TimerTask;
public class TimerService extends TimerTask {
public void run() {
System.out.println(new Date().getSeconds());
}
}
配置文件:以下是两种定时器的配置,使用任意一种即可
方式一: TimerTask定时器配置:
<!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>
方式二:Quartz定时器配置: 该定时器,需要导入quatz-all1.6.jar 和common-collections.jar包
<?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:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" 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/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd" > <!-- 任务类 --> <bean id="myTask" class="myspring.mvc.web.TimerSerivce"/> <!-- 代理指定运行的任务方法 --> <bean id="myCron-over-timer" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean"> <property name="targetObject"> <ref bean="myTask"/> </property> <property name="targetMethod"> <value>run</value> </property> </bean> <!-- 设置任务的运行周期 --> <bean id="myCron-trigger-timer" class="org.springframework.scheduling.quartz.CronTriggerBean"> <property name="jobDetail"> <ref bean="myCron-over-timer"/> </property> <property name="cronExpression"> <value>*/1 * * * * ?</value> </property> </bean> <!-- 启动定时器 --> <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> <property name="triggers"> <list> <ref bean="myCron-trigger-timer"/> </list> </property> </bean> </beans>
测试代码:
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
//或者直接把项目布署到服务器,启动服务器,则可看到控制台会打印当前秒数
}
}
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 inorg.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
25
26
27
可以看到,每隔一秒就打印当前时间的秒数
示例下载:springmvc-timer.rar