java.lang.NoClassDefFoundError

本文记录了一次在Spring Quartz任务中遇到的NoClassDefFoundError异常处理过程,该异常源于CsvReader类未被正确引入。通过添加javacsv-2.0.jar依赖成功解决了问题。
16:25:00.748 [checkAcct_scheduler_Worker-8] ERROR org.quartz.core.JobRunShell - Job DEFAULT.findDownloadFile threw an unhandled Exception: 
org.springframework.scheduling.quartz.JobMethodInvocationFailedException: Invocation of method 'findDownloadFileRun' on target class [class com.qbb.job.FindDownloadFileJob] failed; nested exception is java.lang.NoClassDefFoundError: com/csvreader/CsvReader
at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:266)
at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:75)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: java.lang.NoClassDefFoundError: com/csvreader/CsvReader
at com.qbb.file.LianLianFile.readCSV(LianLianFile.java:235)
at com.qbb.file.LianLianFile.download(LianLianFile.java:93)
at com.qbb.job.FindDownloadFileJob.findDownloadFileRun(FindDownloadFileJob.java:282)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:269)
at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:257)
... 3 common frames omitted
16:25:00.749 [checkAcct_scheduler_Worker-8] ERROR org.quartz.core.ErrorLogger - Job (DEFAULT.findDownloadFile threw an exception.

org.quartz.SchedulerException: Job threw an unhandled exception.


这种异常是缺少某些类,我这里是少CsvReader类引入javacsv-2.0.jar  即可解决问题


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