Quartz与Spring结合时如何动态更新Job的启动时间
转:http://www.blogjava.net/fastzch/archive/2010/04/27/189790.html
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今天早上一朋友问我如何在Spring中动态更新Quartz的启动时间,我试了一把,记录如下:
动态更新的Java类如下:
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import org.quartz.CronTrigger;import org.quartz.JobDetail;import org.quartz.Scheduler;import org.springframework.context.support.ClassPathXmlApplicationContext;public class QuartzTest { ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext( "/applicationContext.xml"); private static String INSTANCE_NAME = "DEFAULT"; public void test() throws Exception { Scheduler sch = (Scheduler) context.getBean("BatchJobStarting"); JobDetail myJob = sch.getJobDetail("CleanLogJob", INSTANCE_NAME); CronTrigger newTrigger = new CronTrigger("trig_batch", INSTANCE_NAME, "0/3 * * * * ?"); JobDetail newJob = (JobDetail) myJob.clone(); sch.deleteJob("CleanLogJob", INSTANCE_NAME); sch.scheduleJob(newJob, newTrigger); } public static void main(String[] args) { QuartzTest qt = new QuartzTest(); try { qt.test(); } catch (Exception e) { e.printStackTrace(); } }}
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代码写得比较简陋,主要是test()方法,大家可以根据自己的实际情况再发挥,例如,如果你是用Web方式改的话,context的获取可以直接从WebApplicationContext中获取。
applicationContext.xml的配置如下:
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<bean id="CleanLogJob" /> </entry> </map> </property> </bean> <bean id="CleanLogJobTrigger" /> </property> <property name="cronExpression"> <value>0 0 0 * * ?</value> </property> </bean> <bean id="BatchJobStarting" /> </list> </property> </bean>
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网上也有一些其它的解法,但似乎比我这个都要复杂,呵呵。。。