spring quartz配置定时器

    技术2025-04-28  15

    首先建立bean.xml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> <!--起动Bean--> <bean id="test" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> <property name="triggers"> <list> <ref bean="cronReportTrigger" /> </list> </property> </bean> <!--实际的工作Bean--> <bean id="testjobbean" class="com.zhouxf.quartz.TestJobBean"> </bean> <!--jobBean用于设定启动时运用的Bean与方法--> <bean id="scheduledReportJobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean"> <property name="targetObject"> <ref bean="testjobbean" /> </property> <property name="targetMethod"> <value>run</value> </property> </bean> <!--定时器设定(0/2 43 12-17 * * ?在12-17点43分,每隔2秒运行一次)--> <bean id="cronReportTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean"> <property name="jobDetail"> <ref bean="scheduledReportJobDetail" /> </property> <property name="cronExpression"> <value>0/2 43 12-17 * * ?</value> </property> </bean> </beans>

    JOB代码:

    public class TestJobBean{ public void run() { System.out.println("run.................."); } }

    测试代码:

    public static void main(String[] args) throws BeansException, FileNotFoundException, InterruptedException { // new LogInit("WEB-INF/classes/com/spring/helloworld/log4j.properties"); BeanFactory factory = new XmlBeanFactory( new FileSystemResource( "///home/zhouxf/work/WebPro/WebContent/WEB-INF/bean.xml")); factory.getBean("test"); }

    还有另一种配置方式,使用QuartzJobBean,它是JobDetailBean的子类,代码如下:

    import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException; import org.springframework.scheduling.quartz.QuartzJobBean; public class TestJobBean extends QuartzJobBean { @Override protected void executeInternal(JobExecutionContext arg0) throws JobExecutionException { // TODO Auto-generated method stub System.out.println("TestJobBean..run................"); } }

    配置文件中加入:

    <bean id="reportJob" class="org.springframework.scheduling.quartz.JobDetailBean"> <property name="jobClass"> <value>com.zhouxf.quartz.TestJobBean</value> </property> </bean> <!--定时器设定(0/2 43 12-17 * * ?在12-17点43分,每隔2秒运行一次)--> <bean id="cronReportTrigger2" class="org.springframework.scheduling.quartz.CronTriggerBean"> <property name="jobDetail"> <ref bean="reportJob" /> </property> <property name="cronExpression"> <value>0/1 31 12-17 * * ?</value> </property> </bean>

    测试代码改为:

    public static void main(String[] args) throws BeansException, FileNotFoundException, InterruptedException { // new LogInit("WEB-INF/classes/com/spring/helloworld/log4j.properties"); BeanFactory factory = new XmlBeanFactory( new FileSystemResource( "///home/zhouxf/work/WebPro/WebContent/WEB-INF/bean.xml")); factory.getBean("test"); factory.getBean("test2"); }

    默认情况下,Quartz Jobs是无状态的,可能导致jobs之间互相的影响。如果你为相同的JobDetail指定两个Trigger, 很可能当第一个job完成之前,第二个job就开始了。如果JobDetail对象实现了Stateful接口,就不会发生这样的事情。 第二个job将不会在第一个job完成之前开始。为了使得jobs不并发运行,设置MethodInvokingJobDetailFactoryBean中的concurrent标记为false。

    <bean id="scheduledReportJobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean"> <property name="targetObject"> <ref bean="simpleJob" /> </property> <property name="targetMethod"> <value>run</value> </property> <property name="concurrent" value="false" /> </bean>

    但是第二种方式的,没办法设置这个属性,暂时还不知道怎么去设置这个属性。

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