Quartz job 删除后还存在吗？

Question

我正在测试一个 helloworld 石英作业。我复制了一个现有作业并将其粘贴到 grails-app/jobs 文件夹中。我将其命名为 TestJob.groovy。我只是用 println 消息让它每分钟触发一次。我在 cron 表达式中犯了一个错误。我删除了这项工作并重新启动了应用程序，我收到以下错误消息。奇怪的是看起来该文件仍然存在，因为错误提到错误在文件 TestJob.groovy 中，但我已经删除了这个文件。我尝试清理项目并重建它，但仍然出现错误。感谢您在解决此错误并正常重新启动应用程序方面提供的任何帮助。谢谢！

  | Loading Grails 2.2.0
    | Configuring classpath.
    | Environment set to development.....
    | Packaging Grails application.....
    | Compiling 1 source files.....
    | Running Grails application
    ERROR context.ContextLoader: Context initialization failed
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pluginManager' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.RuntimeException: Unable to locate constructor with Class parameter for class grails.plugins.quartz.DefaultGrailsJobClass
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
    Caused by: java.lang.RuntimeException: Unable to locate constructor with Class parameter for class grails.plugins.quartz.DefaultGrailsJobClass
        ... 4 more
    Caused by: java.lang.reflect.InvocationTargetException
        ... 4 more
    Caused by: java.lang.IllegalArgumentException: Cron expression '0 * * * * *' in the job class com.runnercard.RemoveUserCodeJob is not a valid cron expression
        at grails.plugins.quartz.config.TriggersConfigBuilder$_prepareCronTriggerAttributes_closure5.doCall(TriggersConfigBuilder.groovy:204)
        at grails.plugins.quartz.config.TriggersConfigBuilder$_closure1.doCall(TriggersConfigBuilder.groovy:216)
        at grails.plugins.quartz.config.TriggersConfigBuilder.prepareCronTriggerAttributes(TriggersConfigBuilder.groovy:198)
        at grails.plugins.quartz.config.TriggersConfigBuilder.createTrigger(TriggersConfigBuilder.groovy:78)
        at grails.plugins.quartz.config.TriggersConfigBuilder.createNode(TriggersConfigBuilder.groovy:251)
        at grails.plugins.quartz.config.TriggersConfigBuilder.createNode(TriggersConfigBuilder.groovy:244)
        at com.runnercard.RemoveUserCodeJob$__clinit__closure1.doCall(TestJob.groovy:14)
        at grails.plugins.quartz.config.TriggersConfigBuilder.build(TriggersConfigBuilder.groovy:51)
        at grails.plugins.quartz.DefaultGrailsJobClass.evaluateTriggers(DefaultGrailsJobClass.java:57)
        at grails.plugins.quartz.DefaultGrailsJobClass.<init>(DefaultGrailsJobClass.java:47)
        ... 4 more
    ERROR context.GrailsContextLoader: Error initializing the application: Error creating bean with name 'pluginManager' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.RuntimeException: Unable to locate constructor with Class parameter for class grails.plugins.quartz.DefaultGrailsJobClass
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pluginManager' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.RuntimeException: Unable to locate constructor with Class parameter for class grails.plugins.quartz.DefaultGrailsJobClass
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
    Caused by: java.lang.RuntimeException: Unable to locate constructor with Class parameter for class grails.plugins.quartz.DefaultGrailsJobClass
        ... 4 more
    Caused by: java.lang.reflect.InvocationTargetException
        ... 4 more
    Caused by: java.lang.IllegalArgumentException: Cron expression '0 * * * * *' in the job class com.runnercard.RemoveUserCodeJob is not a valid cron expression
        at grails.plugins.quartz.config.TriggersConfigBuilder$_prepareCronTriggerAttributes_closure5.doCall(TriggersConfigBuilder.groovy:204)
        at grails.plugins.quartz.config.TriggersConfigBuilder$_closure1.doCall(TriggersConfigBuilder.groovy:216)
        at grails.plugins.quartz.config.TriggersConfigBuilder.prepareCronTriggerAttributes(TriggersConfigBuilder.groovy:198)
        at grails.plugins.quartz.config.TriggersConfigBuilder.createTrigger(TriggersConfigBuilder.groovy:78)
        at grails.plugins.quartz.config.TriggersConfigBuilder.createNode(TriggersConfigBuilder.groovy:251)
        at grails.plugins.quartz.config.TriggersConfigBuilder.createNode(TriggersConfigBuilder.groovy:244)
        at com.runnercard.RemoveUserCodeJob$__clinit__closure1.doCall(TestJob.groovy:14)
        at grails.plugins.quartz.config.TriggersConfigBuilder.build(TriggersConfigBuilder.groovy:51)
        at grails.plugins.quartz.DefaultGrailsJobClass.evaluateTriggers(DefaultGrailsJobClass.java:57)
        at grails.plugins.quartz.DefaultGrailsJobClass.<init>(DefaultGrailsJobClass.java:47)
        ... 4 more

Answer 1

执行 grails clean 并清除 .slcache 就可以了。也许缓存是罪魁祸首。