java - quartz 发射两次 bean 缓存问题？

Question

spring-report.xml

<bean id="scheduleReportEmailJob"
      class="org.springframework.scheduling.quartz.JobDetailBean">
    <property name="jobClass"
              value="schedule.ReportQuartzJobBean"/>
    <property name="jobDataAsMap">
        <map>
            <entry key="reportService" value-ref="reportService"/>
        </map>
    </property>
</bean>

<bean id="cronEmailTrigger"
      class="org.springframework.scheduling.quartz.CronTriggerBean">
    <property name="jobDetail" ref="scheduleReportEmailJob"/>
    <property name="cronExpression" value="0 0,15,30,45 * ? * MON-FRI"/>
</bean>

<bean id="scheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
    <property name="triggers">
        <list>
            <ref bean="cronEmailTrigger"/>
        </list>
    </property>
    <property name="quartzProperties">
        <props>
            <prop key="org.quartz.scheduler.instanceName">Reports</prop>
            <prop key="org.quartz.scheduler.instanceId">FirstInstance</prop>
            <prop key="org.quartz.scheduler.rmi.export">false</prop>
            <prop key="org.quartz.scheduler.rmi.proxy">false</prop>
            <prop key="org.quartz.threadPool.class">org.quartz.simpl.SimpleThreadPool</prop>
            <prop key="org.quartz.threadPool.threadCount">1</prop>
            <prop key="org.quartz.jobStore.class">org.quartz.simpl.RAMJobStore</prop>
            <prop key="org.quartz.scheduler.jobFactory.class">org.quartz.simpl.SimpleJobFactory</prop>
        </props>
    </property>
</bean>

---

private static BeanFactory factory = new ClassPathXmlApplicationContext("spring-report.xml");

当我启动tomcat时

2011-02-07 06:46:57,005(ISO8601) [main] DEBUG   org.springframework.beans.factory.support.DefaultListableBeanFactory  - Invoking afterPropertiesSet() on bean with name 'scheduler'
2011-02-07 06:46:57,083(ISO8601) [main] INFO    org.quartz.core.SchedulerSignalerImpl  - Initialized Scheduler Signaller of type: class org.quartz.core.Schedu
lerSignalerImpl
2011-02-07 06:46:57,083(ISO8601) [main] INFO    org.quartz.core.QuartzScheduler  - Quartz Scheduler v.1.6.3 created.
2011-02-07 06:46:57,084(ISO8601) [main] INFO    org.quartz.core.QuartzScheduler  - JobFactory set to: org.quartz.simpl.SimpleJobFactory@3dd510be
2011-02-07 06:46:57,085(ISO8601) [main] INFO    org.quartz.simpl.RAMJobStore  - RAMJobStore initialized.
2011-02-07 06:46:57,085(ISO8601) [main] INFO    org.quartz.impl.StdSchedulerFactory  - Quartz scheduler 'Reports' initialized from an externally provided prop
erties instance.
2011-02-07 06:46:57,085(ISO8601) [main] INFO    org.quartz.impl.StdSchedulerFactory  - Quartz scheduler version: 1.6.3
2011-02-07 06:46:57,087(ISO8601) [main] INFO    org.quartz.core.QuartzScheduler  - JobFactory set to: org.springframework.scheduling.quartz.AdaptableJobFactor
y@206fa7ec
2011-02-07 06:46:57,094(ISO8601) [main] INFO    org.springframework.scheduling.quartz.SchedulerFactoryBean  - Starting Quartz Scheduler now
2011-02-07 06:46:57,094(ISO8601) [main] INFO    org.quartz.core.QuartzScheduler  - Scheduler Reports_$_FirstInstance started.
2011-02-07 06:46:57,139(ISO8601) [main] DEBUG   org.springframework.beans.factory.support.DefaultListableBeanFactory  - Finished creating instance of bean 'sc
heduler'
2011-02-07 06:46:57,140(ISO8601) [main] DEBUG   org.springframework.context.support.ClassPathXmlApplicationContext  - Publishing event in context [org.springf
ramework.context.support.ClassPathXmlApplicationContext@4275b35]: org.springframework.context.event.ContextRefreshedEvent[source=org.springframework.context.s
upport.ClassPathXmlApplicationContext@4275b35: display name [org.springframework.context.support.ClassPathXmlApplicationContext@4275b35]; startup date [Mon Fe
b 07 06:46:55 EST 2011]; root of context hierarchy]

在我启动 tomcat 一段时间后，作业会触发两次，如果我从工作目录和分解的 war 文件中删除所有缓存并重新部署，它只会触发一次作业。有任何想法吗 ？也许缓存 bean？

@jhouse 重新部署似乎是我在重新部署后粘贴线程转储的问题，我有什么选择？

@jhouse

"Reports_QuartzSchedulerThread"prio=10 tid=0x00002aab0c10b000 nid=0x1dc0 in Object.wait() [0x0000000044501000] java.lang.Thread.State:TIMED_WAITING(在对象监视器上) 在 java.lang.Object.wait( native 方法) - 等待 <0x00002aaac9e6d298>(java.lang.Object) 在 org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:433) - 锁定 <0x00002aaac9e6d298>(java.lang.Object)

"Reports_Worker-1"prio=10 tid=0x00002aab0c10a800 nid=0x1dbf in Object.wait() [0x0000000044400000] java.lang.Thread.State:TIMED_WAITING(在对象监视器上) 在 java.lang.Object.wait( native 方法) - 等待 <0x00002aaac9e4c980>(一个 org.quartz.simpl.SimpleThreadPool$WorkerThread) 在 org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:519) - 锁定 <0x00002aaac9e4c980>(一个 org.quartz.simpl.SimpleThreadPool$WorkerThread)

“Reports_QuartzSchedulerThread”prio=10 tid=0x00002aab0841b800 nid=0x1da3 in Object.wait() [0x0000000041715000] java.lang.Thread.State:TIMED_WAITING(在对象监视器上) 在 java.lang.Object.wait( native 方法) - 等待 <0x00002aaac4fc71d0>(java.lang.Object) 在 org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:433) - 锁定 <0x00002aaac4fc71d0>(java.lang.Object)

"Reports_Worker-1"prio=10 tid=0x00002aab091a3000 nid=0x1da2 in Object.wait() [0x0000000041614000] java.lang.Thread.State:TIMED_WAITING(在对象监视器上) 在 java.lang.Object.wait( native 方法) - 等待 <0x00002aaac4e21b10>(一个 org.quartz.simpl.SimpleThreadPool$WorkerThread) 在 org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:519) - 锁定 <0x00002aaac4e21b10>(一个 org.quartz.simpl.SimpleThreadPool$WorkerThread)

如果我停止服务器，然后检查线程转储它是否为空，然后启动(不清理)服务器，threadump 有重复的线程在运行

Answer 1

很好奇，您的 web.xml 中是否也配置了 spring-report.xml？像这样？

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
        classpath:spring-report.xml
    </param-value>
</context-param>

我问的原因是因为你在上面发表了这个声明:-

private static BeanFactory factory = new ClassPathXmlApplicationContext("spring-report.xml");

如果您在 web.xml 和 Java 代码中都有 spring-report.xml，那么是的，它可能会触发作业两次。