我们需要一个作业来连续运行,而不需要外部调度程序。我扩展了JobExecutionListener,如下所示:
@Autowired
@Qualifier("myJob")
private Job job;
private int counter = 0;
@Override
public void afterJob(JobExecution jobExecution) {
jobExecution.stop();
JobParameters jobParameters = new JobParameters();
JobParameter jobParameter = new JobParameter((new Integer(++counter)).toString());
jobParameters.getParameters().put("counter", jobParameter);
try {
jobLauncher.run(job, jobParameters);
}
catch (JobExecutionAlreadyRunningException e) {
throw new RuntimeException(e);
} catch (JobRestartException e) {
throw new RuntimeException(e);
} catch (JobInstanceAlreadyCompleteException e) {
throw new RuntimeException(e);
} catch (JobParametersInvalidException e) {
throw new RuntimeException(e);
}
运行时,会引发JobExecutionAlreadyRunningException。
JobExecutionAlreadyRunningException: A job execution for this job is already running: JobInstance: id=0, version=0, Job=[myJob]
我哪里错了?
感谢
来自官方文档:
关闭不是立即的,因为没有办法强制立即关闭,特别是当执行当前处于框架无法控制的开发人员代码,例如商务服务。但是,一旦控制权返回到框架,它会将当前StepExecution的状态设置为批次状态。STOPPED,保存它,然后对JobExecution执行相同操作在完成之前。
也许你可以有机会使用专门的JobLauncher,在上一个作业的线程终止后启动作业,或者使用与JobLauncher关联的自定义TaskExecutor。