Quartz：如何使用org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin重新加载作业和触发器？
我想在我的小而简单的Web应用程序中使用quartz。 （Quartz 2.1.6和tomcat 7.0.22）。 我想更改触发器cron表达式而不重启我的应用程序。 我将作业放在xml文件quartz-jobs.xml并在quartz.properties设置XMLSchedulingDataProcessorPlugin
问题：当我更改quartz-jobs.xml内容时，石英欺骗文件已更改并重新加载，删除并创建新作业。 我在日志文件中看到它。 但是这个文件的内容很旧（与启动时相同）。
所以我在filesystem新版本的quartz-jobs.xml ，但是quartz接受了该文件的旧版本。
文件系统是普通的ext4，带有默认的setings。
那么，如何从xml文件刷新石英作业和触发器？
这是我的配置：
quartz.properties：
org.quartz.scheduler.instanceName = SMSScheduler org.quartz.threadPool.threadCount = 1 org.quartz.jobStore.class = org.quartz.simpl.RAMJobStore org.quartz.scheduler.skipUpdateCheck=true org.quartz.plugin.jobInitializer.class = org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin org.quartz.plugin.jobInitializer.fileNames = quartz-jobs.xml org.quartz.plugin.jobInitializer.failOnFileNotFound = true org.quartz.plugin.jobInitializer.scanInterval = 30 org.quartz.plugin.jobInitializer.wrapInUserTransaction = false
石英jobs.xml
REPORT_GROUP REPORT_TRIGGER_GROUP report-job REPORT_GROUP Create report com.company.quartz.ReportJob every-day-trigger REPORT_TRIGGER_GROUP report-job REPORT_GROUP 0 * * * * ?
ReportJob.java
package com.company.quartz; import org.quartz.Job; import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException; public class ReportJob implements Job { @Override public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException { System.out.println("test!"); } }
日志，您可以在其中查看检查间隔和正在运行的作业：
2012-11-22 11:47:20,169 INFO [pool-2-thread-1] [QuartzInitializerListener.java:contextInitialized:147] Quartz Initializer Servlet loaded, initializing Scheduler... 2012-11-22 11:47:20,223 INFO [pool-2-thread-1] [StdSchedulerFactory.java:instantiate:1157] Using default implementation for ThreadExecutor 2012-11-22 11:47:20,261 INFO [pool-2-thread-1] [SchedulerSignalerImpl.java::61] Initialized Scheduler Signaller of type: class org.quartz.core.SchedulerSignalerImpl 2012-11-22 11:47:20,261 INFO [pool-2-thread-1] [QuartzScheduler.java::243] Quartz Scheduler v.2.1.6 created. 2012-11-22 11:47:20,263 INFO [pool-2-thread-1] [XMLSchedulingDataProcessorPlugin.java:initialize:202] Registering Quartz Job Initialization Plug-in. 2012-11-22 11:47:20,264 INFO [pool-2-thread-1] [RAMJobStore.java:initialize:154] RAMJobStore initialized. 2012-11-22 11:47:20,266 INFO [pool-2-thread-1] [QuartzScheduler.java:initialize:268] Scheduler meta-data: Quartz Scheduler (v2.1.6) 'SMSScheduler' with instanceId 'NON_CLUSTERED' Scheduler class: 'org.quartz.core.QuartzScheduler' - running locally. NOT STARTED. Currently in standby mode. Number of jobs executed: 0 Using thread pool 'org.quartz.simpl.SimpleThreadPool' - with 1 threads. Using job-store 'org.quartz.simpl.RAMJobStore' - which does not support persistence. and is not clustered. 2012-11-22 11:47:20,266 INFO [pool-2-thread-1] [StdSchedulerFactory.java:instantiate:1306] Quartz scheduler 'SMSScheduler' initialized from default resource file in Quartz package: 'quartz.properties' 2012-11-22 11:47:20,266 INFO [pool-2-thread-1] [StdSchedulerFactory.java:instantiate:1310] Quartz scheduler version: 2.1.6 2012-11-22 11:47:20,275 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessorPlugin.java:start:254] Scheduled file scan job for data file: quartz-jobs.xml, at interval: 10000 2012-11-22 11:47:20,280 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:resolveSchemaSource:239] Utilizing schema packaged in local quartz distribution jar. 2012-11-22 11:47:20,283 INFO [pool-2-thread-1] [XMLSchedulingDataProcessor.java:processFile:498] Parsing XML file: quartz-jobs.xml with systemId: quartz-jobs.xml 2012-11-22 11:47:20,358 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:549] Found 1 delete job group commands. 2012-11-22 11:47:20,365 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:563] Found 1 delete trigger group commands. 2012-11-22 11:47:20,367 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:577] Found 0 delete job commands. 2012-11-22 11:47:20,368 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:594] Found 0 delete trigger commands. 2012-11-22 11:47:20,375 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:614] Directive 'overwrite-existing-data' not specified, defaulting to true 2012-11-22 11:47:20,377 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:624] Directive 'ignore-duplicates' not specified, defaulting to false 2012-11-22 11:47:20,378 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:638] Found 1 job definitions. 2012-11-22 11:47:20,398 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:674] Parsed job definition: JobDetail 'REPORT_GROUP.report-job': jobClass: 'com.company.quartz.ReportJob concurrentExectionDisallowed: false persistJobDataAfterExecution: false isDurable: false requestsRecovers: false 2012-11-22 11:47:20,407 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:686] Found 1 trigger definitions. 2012-11-22 11:47:20,451 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:817] Parsed trigger definition: Trigger 'REPORT_TRIGGER_GROUP.every-day-trigger': triggerClass: 'org.quartz.impl.triggers.CronTriggerImpl calendar: 'null' misfireInstruction: 0 nextFireTime: null 2012-11-22 11:47:20,457 INFO [pool-2-thread-1] [XMLSchedulingDataProcessor.java:executePreProcessCommands:962] Deleting all jobs in group: REPORT_GROUP 2012-11-22 11:47:20,461 INFO [pool-2-thread-1] [XMLSchedulingDataProcessor.java:executePreProcessCommands:983] Deleting all triggers in group: REPORT_TRIGGER_GROUP 2012-11-22 11:47:20,461 INFO [pool-2-thread-1] [XMLSchedulingDataProcessor.java:scheduleJobs:1021] Adding 1 jobs, 1 triggers. 2012-11-22 11:47:20,461 INFO [pool-2-thread-1] [XMLSchedulingDataProcessor.java:scheduleJobs:1046] Adding job: REPORT_GROUP.report-job 2012-11-22 11:47:20,462 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:scheduleJobs:1107] Scheduling job: REPORT_GROUP.report-job with trigger: REPORT_TRIGGER_GROUP.every-day-trigger 2012-11-22 11:47:20,471 INFO [pool-2-thread-1] [QuartzScheduler.java:start:534] Scheduler SMSScheduler_$_NON_CLUSTERED started. 2012-11-22 11:47:20,472 INFO [pool-2-thread-1] [QuartzInitializerListener.java:contextInitialized:199] Scheduler has been started... 2012-11-22 11:47:20,472 INFO [pool-2-thread-1] [QuartzInitializerListener.java:contextInitialized:217] Storing the Quartz Scheduler Factory in the servlet context at key: org.quartz.impl.StdSchedulerFactory.KEY 2012-11-22 11:47:20,481 DEBUG [SMSScheduler_QuartzSchedulerThread] [QuartzSchedulerThread.java:run:268] batch acquisition of 1 triggers 2012-11-22 11:47:20,493 DEBUG [SMSScheduler_QuartzSchedulerThread] [SimpleJobFactory.java:newJob:51] Producing instance of Job 'JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml', class=org.quartz.jobs.FileScanJob 2012-11-22 11:47:20,516 DEBUG [SMSScheduler_Worker-1] [JobRunShell.java:run:212] Calling execute on job JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml 2012-11-22 11:47:20,517 DEBUG [SMSScheduler_Worker-1] [FileScanJob.java:execute:138] File 'quartz-jobs.xml' unchanged. 2012-11-22 11:47:20,517 DEBUG [SMSScheduler_QuartzSchedulerThread] [QuartzSchedulerThread.java:run:268] batch acquisition of 1 triggers 2012-11-22 11:47:30,272 DEBUG [SMSScheduler_QuartzSchedulerThread] [SimpleJobFactory.java:newJob:51] Producing instance of Job 'JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml', class=org.quartz.jobs.FileScanJob 2012-11-22 11:47:30,272 DEBUG [SMSScheduler_Worker-1] [JobRunShell.java:run:212] Calling execute on job JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml 2012-11-22 11:47:30,272 DEBUG [SMSScheduler_Worker-1] [FileScanJob.java:execute:138] File 'quartz-jobs.xml' unchanged. 2012-11-22 11:47:30,273 DEBUG [SMSScheduler_QuartzSchedulerThread] [QuartzSchedulerThread.java:run:268] batch acquisition of 1 triggers 2012-11-22 11:47:40,271 DEBUG [SMSScheduler_QuartzSchedulerThread] [SimpleJobFactory.java:newJob:51] Producing instance of Job 'JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml', class=org.quartz.jobs.FileScanJob 2012-11-22 11:47:40,272 DEBUG [SMSScheduler_Worker-1] [JobRunShell.java:run:212] Calling execute on job JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml 2012-11-22 11:47:40,272 DEBUG [SMSScheduler_Worker-1] [FileScanJob.java:execute:138] File 'quartz-jobs.xml' unchanged. 2012-11-22 11:47:40,272 DEBUG [SMSScheduler_QuartzSchedulerThread] [QuartzSchedulerThread.java:run:268] batch acquisition of 1 triggers 2012-11-22 11:47:50,271 DEBUG [SMSScheduler_QuartzSchedulerThread] [SimpleJobFactory.java:newJob:51] Producing instance of Job 'JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml', class=org.quartz.jobs.FileScanJob 2012-11-22 11:47:50,271 DEBUG [SMSScheduler_Worker-1] [JobRunShell.java:run:212] Calling execute on job JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml 2012-11-22 11:47:50,271 DEBUG [SMSScheduler_Worker-1] [FileScanJob.java:execute:138] File 'quartz-jobs.xml' unchanged. 2012-11-22 11:47:50,273 DEBUG [SMSScheduler_QuartzSchedulerThread] [QuartzSchedulerThread.java:run:268] batch acquisition of 1 triggers 2012-11-22 11:48:00,001 DEBUG [SMSScheduler_QuartzSchedulerThread] [SimpleJobFactory.java:newJob:51] Producing instance of Job 'REPORT_GROUP.report-job', class=com.company.quartz.ReportJob 2012-11-22 11:48:00,003 DEBUG [SMSScheduler_Worker-1] [JobRunShell.java:run:212] Calling execute on job REPORT_GROUP.report-job 2012-11-22 11:48:00,003 ERROR [SMSScheduler_Worker-1] [ReportJob.java:execute:31] test 2012-11-22 11:48:00,289 DEBUG [SMSScheduler_QuartzSchedulerThread] [QuartzSchedulerThread.java:run:268] batch acquisition of 1 triggers 2012-11-22 11:48:00,290 DEBUG [SMSScheduler_QuartzSchedulerThread] [SimpleJobFactory.java:newJob:51] Producing instance of Job 'JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml', class=org.quartz.jobs.FileScanJob 2012-11-22 11:48:00,290 DEBUG [SMSScheduler_Worker-1] [JobRunShell.java:run:212] Calling execute on job JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml 2012-11-22 11:48:00,290 DEBUG [SMSScheduler_Worker-1] [FileScanJob.java:execute:138] File 'quartz-jobs.xml' unchanged. 2012-11-22 11:48:00,290 DEBUG [SMSScheduler_QuartzSchedulerThread]
接下来我改变了quartz-jobs.xml内容，使其无效，所以我希望看到xml解析器错误，但没有任何改变：
2012-11-22 11:51:20,280 DEBUG [SMSScheduler_QuartzSchedulerThread] [QuartzSchedulerThread.java:run:268] batch acquisition of 1 triggers 2012-11-22 11:51:30,271 DEBUG [SMSScheduler_QuartzSchedulerThread] [SimpleJobFactory.java:newJob:51] Producing instance of Job 'JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml', class=org.quartz.jobs.FileScanJob 2012-11-22 11:51:30,272 DEBUG [SMSScheduler_Worker-1] [JobRunShell.java:run:212] Calling execute on job JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml 2012-11-22 11:51:30,272 INFO [SMSScheduler_Worker-1] [FileScanJob.java:execute:135] File 'quartz-jobs.xml' updated, notifying listener. 2012-11-22 11:51:30,273 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:resolveSchemaSource:239] Utilizing schema packaged in local quartz distribution jar. 2012-11-22 11:51:30,277 INFO [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:processFile:498] Parsing XML file: quartz-jobs.xml with systemId: quartz-jobs.xml 2012-11-22 11:51:30,306 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:process:549] Found 1 delete job group commands. 2012-11-22 11:51:30,308 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:process:563] Found 1 delete trigger group commands. 2012-11-22 11:51:30,310 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:process:577] Found 0 delete job commands. 2012-11-22 11:51:30,312 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:process:594] Found 0 delete trigger commands. 2012-11-22 11:51:30,313 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:process:614] Directive 'overwrite-existing-data' not specified, defaulting to true 2012-11-22 11:51:30,314 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:process:624] Directive 'ignore-duplicates' not specified, defaulting to false 2012-11-22 11:51:30,315 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:process:638] Found 1 job definitions. 2012-11-22 11:51:30,327 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:process:674] Parsed job definition: JobDetail 'REPORT_GROUP.report-job': jobClass: 'com.company.quartz.ReportJob concurrentExectionDisallowed: false persistJobDataAfterExecution: false isDurable: false requestsRecovers: false 2012-11-22 11:51:30,328 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:process:686] Found 1 trigger definitions. 2012-11-22 11:51:30,351 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:process:817] Parsed trigger definition: Trigger 'REPORT_TRIGGER_GROUP.every-day-trigger': triggerClass: 'org.quartz.impl.triggers.CronTriggerImpl calendar: 'null' misfireInstruction: 0 nextFireTime: null 2012-11-22 11:51:30,351 INFO [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:executePreProcessCommands:962] Deleting all jobs in group: REPORT_GROUP 2012-11-22 11:51:30,352 INFO [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:executePreProcessCommands:983] Deleting all triggers in group: REPORT_TRIGGER_GROUP 2012-11-22 11:51:30,352 INFO [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:scheduleJobs:1021] Adding 1 jobs, 1 triggers. 2012-11-22 11:51:30,352 INFO [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:scheduleJobs:1046] Adding job: REPORT_GROUP.report-job 2012-11-22 11:51:30,352 DEBUG [SMSScheduler_Worker-1] [XMLSchedulingDataProcessor.java:scheduleJobs:1107] Scheduling job: REPORT_GROUP.report-job with trigger: REPORT_TRIGGER_GROUP.every-day-trigger 2012-11-22 11:51:30,353 DEBUG [SMSScheduler_QuartzSchedulerThread] [QuartzSchedulerThread.java:run:268] batch acquisition of 1 triggers
之后我重新启动tomcat，错误就在这里！ 但为什么它只在重新启动后出现？
2012-11-22 12:03:38,740 INFO [pool-2-thread-1] [QuartzScheduler.java::243] Quartz Scheduler v.2.1.6 created. 2012-11-22 12:03:38,741 INFO [pool-2-thread-1] [XMLSchedulingDataProcessorPlugin.java:initialize:202] Registering Quartz Job Initialization Plug-in. 2012-11-22 12:03:38,743 INFO [pool-2-thread-1] [RAMJobStore.java:initialize:154] RAMJobStore initialized. 2012-11-22 12:03:38,744 INFO [pool-2-thread-1] [QuartzScheduler.java:initialize:268] Scheduler meta-data: Quartz Scheduler (v2.1.6) 'SMSScheduler' with instanceId 'NON_CLUSTERED' Scheduler class: 'org.quartz.core.QuartzScheduler' - running locally. NOT STARTED. Currently in standby mode. Number of jobs executed: 0 Using thread pool 'org.quartz.simpl.SimpleThreadPool' - with 1 threads. Using job-store 'org.quartz.simpl.RAMJobStore' - which does not support persistence. and is not clustered. 2012-11-22 12:03:38,744 INFO [pool-2-thread-1] [StdSchedulerFactory.java:instantiate:1306] Quartz scheduler 'SMSScheduler' initialized from default resource file in Quartz package: 'quartz.properties' 2012-11-22 12:03:38,744 INFO [pool-2-thread-1] [StdSchedulerFactory.java:instantiate:1310] Quartz scheduler version: 2.1.6 2012-11-22 12:03:38,753 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessorPlugin.java:start:254] Scheduled file scan job for data file: quartz-jobs.xml, at interval: 10000 2012-11-22 12:03:38,757 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:resolveSchemaSource:239] Utilizing schema packaged in local quartz distribution jar. 2012-11-22 12:03:38,761 INFO [pool-2-thread-1] [XMLSchedulingDataProcessor.java:processFile:498] Parsing XML file: quartz-jobs.xml with systemId: quartz-jobs.xml 2012-11-22 12:03:38,837 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:549] Found 1 delete job group commands. 2012-11-22 12:03:38,838 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:563] Found 1 delete trigger group commands. 2012-11-22 12:03:38,847 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:577] Found 0 delete job commands. 2012-11-22 12:03:38,848 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:594] Found 0 delete trigger commands. 2012-11-22 12:03:38,850 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:614] Directive 'overwrite-existing-data' not specified, defaulting to true 2012-11-22 12:03:38,851 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:624] Directive 'ignore-duplicates' not specified, defaulting to false 2012-11-22 12:03:38,861 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:638] Found 1 job definitions. 2012-11-22 12:03:38,880 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:674] Parsed job definition: JobDetail 'REPORT_GROUP.report-job': jobClass: 'com.company.quartz.ReportJob concurrentExectionDisallowed: false persistJobDataAfterExecution: false isDurable: false requestsRecovers: false 2012-11-22 12:03:38,882 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:686] Found 1 trigger definitions. 2012-11-22 12:03:38,920 DEBUG [pool-2-thread-1] [XMLSchedulingDataProcessor.java:process:817] Parsed trigger definition: Trigger 'REPORT_TRIGGER_GROUP.every-day-trigger': triggerClass: 'org.quartz.impl.triggers.CronTriggerImpl calendar: 'null' misfireInstruction: 0 nextFireTime: null 2012-11-22 12:03:38,938 ERROR [pool-2-thread-1] [XMLSchedulingDataProcessorPlugin.java:processFile:335] Error scheduling jobs: Encountered 1 validation exceptions. org.quartz.xml.ValidationException: Encountered 1 validation exceptions. at org.quartz.xml.XMLSchedulingDataProcessor.maybeThrowValidationException(XMLSchedulingDataProcessor.java:1256) ~[quartz-2.1.6.jar:na] at org.quartz.xml.XMLSchedulingDataProcessor.processFile(XMLSchedulingDataProcessor.java:505) ~[quartz-2.1.6.jar:na] at org.quartz.xml.XMLSchedulingDataProcessor.processFileAndScheduleJobs(XMLSchedulingDataProcessor.java:886) ~[quartz-2.1.6.jar:na] at org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin.processFile(XMLSchedulingDataProcessorPlugin.java:330) [quartz-2.1.6.jar:na] at org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin.start(XMLSchedulingDataProcessorPlugin.java:257) [quartz-2.1.6.jar:na] at org.quartz.plugins.SchedulerPluginWithUserTransactionSupport.start(SchedulerPluginWithUserTransactionSupport.java:144) [quartz-2.1.6.jar:na] at org.quartz.core.QuartzScheduler.startPlugins(QuartzScheduler.java:2343) [quartz-2.1.6.jar:na] at org.quartz.core.QuartzScheduler.start(QuartzScheduler.java:527) [quartz-2.1.6.jar:na] at org.quartz.impl.StdScheduler.start(StdScheduler.java:143) [quartz-2.1.6.jar:na] at org.quartz.ee.servlet.QuartzInitializerListener.contextInitialized(QuartzInitializerListener.java:198) [quartz-2.1.6.jar:na] at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4779) [catalina.jar:7.0.27] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5273) [catalina.jar:7.0.27] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [catalina.jar:7.0.27] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) [catalina.jar:7.0.27] at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) [catalina.jar:7.0.27] at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) [catalina.jar:7.0.27] at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1099) [catalina.jar:7.0.27] at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1621) [catalina.jar:7.0.27] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) [na:1.6.0_32] at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [na:1.6.0_32] at java.util.concurrent.FutureTask.run(FutureTask.java:138) [na:1.6.0_32] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [na:1.6.0_32] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [na:1.6.0_32] at java.lang.Thread.run(Thread.java:662) [na:1.6.0_32] Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.3: Element 'cron' cannot have character [children], because the type's content type is element-only. at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:131) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:384) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:318) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(XMLSchemaValidator.java:423) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.reportSchemaError(XMLSchemaValidator.java:3188) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.elementLocallyValidComplexType(XMLSchemaValidator.java:3151) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.elementLocallyValidType(XMLSchemaValidator.java:3111) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.processElementContent(XMLSchemaValidator.java:3013) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleEndElement(XMLSchemaValidator.java:2156) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.endElement(XMLSchemaValidator.java:824) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1782) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2939) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:647) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:232) ~[na:1.6.0_32] at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284) ~[na:1.6.0_32] at org.quartz.xml.XMLSchedulingDataProcessor.process(XMLSchedulingDataProcessor.java:539) ~[quartz-2.1.6.jar:na] at org.quartz.xml.XMLSchedulingDataProcessor.processFile(XMLSchedulingDataProcessor.java:503) ~[quartz-2.1.6.jar:na] ... 22 common frames omitted 2012-11-22 12:03:38,947 INFO [pool-2-thread-1] [QuartzScheduler.java:start:534] Scheduler SMSScheduler_$_NON_CLUSTERED started. 2012-11-22 12:03:38,947 INFO [pool-2-thread-1] [QuartzInitializerListener.java:contextInitialized:199] Scheduler has been started... 2012-11-22 12:03:38,947 INFO [pool-2-thread-1] [QuartzInitializerListener.java:contextInitialized:217] Storing the Quartz Scheduler Factory in the servlet context at key: org.quartz.impl.StdSchedulerFactory.KEY 2012-11-22 12:03:38,950 DEBUG [SMSScheduler_QuartzSchedulerThread] [QuartzSchedulerThread.java:run:268] batch acquisition of 1 triggers 2012-11-22 12:03:39,002 DEBUG [SMSScheduler_QuartzSchedulerThread] [SimpleJobFactory.java:newJob:51] Producing instance of Job 'JobSchedulingDataLoaderPlugin.JobSchedulingDataLoaderPlugin_jobInitializer_quartz-jobs_xml', class=org.quartz.jobs.FileScanJob
编辑：报告给terracota https://jira.terracotta.org/jira/browse/QTZ-334
您应该尝试指定quartz-jobs.xml文件的绝对路径，以避免tomcat在webapp上下文中重新加载文件的问题，即使它们已被更改。
我们使用提到的相同配置的quartz.properties和quartz_jobs.xml为我们的业务需求构建了一个小型java项目，但没有Tomcat（Java应用程序项目）。
即使在小程序中，在启动Java类（scheduler.start（））之后，修改quartz-jobs.xml也不会根据表达式更改触发cron。
为了解决这个问题，我在quartz.properties中提供了绝对路径，然后由调度程序Factory获取了cron表达式更改。