详细的错误信息如下:
1 2016-06-28 17:18:13.366 [DefaultQuartzScheduler_Worker-1] ERROR org.quartz.core.JobRunShell:211 - Job group1.job1 threw an unhandled Exception: 2 java.lang.NullPointerException 3 at com.starunion.java.service.timer.JobEndConference.execute(JobEndConference.java:45) ~[bin/:?] 4 at org.quartz.core.JobRunShell.run(JobRunShell.java:202) [quartz-2.2.1.jar:?] 5 at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) [quartz-2.2.1.jar:?] 6 2016-06-28 17:18:13.374 [DefaultQuartzScheduler_Worker-1] ERROR org.quartz.core.ErrorLogger:2425 - Job (group1.job1 threw an exception. 7 org.quartz.SchedulerException: Job threw an unhandled exception. 8 at org.quartz.core.JobRunShell.run(JobRunShell.java:213) [quartz-2.2.1.jar:?] 9 at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) [quartz-2.2.1.jar:?] 10 Caused by: java.lang.NullPointerException 11 at com.starunion.java.service.timer.JobEndConference.execute(JobEndConference.java:45) ~[bin/:?] 12 at org.quartz.core.JobRunShell.run(JobRunShell.java:202) ~[quartz-2.2.1.jar:?]
说说我的解决过程:
一、原因很明显:调用了null对象。
根据日志信息,定位到我的Job对象类的指定行,下图的21行:
1 @Component 2 public class JobEndConference implements Job { 3 4 @Autowired 5 CallableFsExecCmdProc procExecTask; 6 7 @Override 8 public void execute(JobExecutionContext JEContext) throws JobExecutionException { 9 10 JobDataMap map = JEContext.getJobDetail().getJobDataMap(); 11 12 String meetName = (String) map.get("meetName"); 13 14 StringBuffer buff = new StringBuffer(); 15 buff.append("bgapi conference "); 16 buff.append(meetName); 17 buff.append(" kick all"); 18 // buff.append(ConstantUtil.FS_CMD_TAIL); 19 20 // SocketFsTcp4SendCMD.fsSendCommand(buff.toString()); 21 procExecTask.setSendCmd(buff.toString()); 22 Future<Integer> future = StarProxy.executor.submit(procExecTask); 23 try { 24 future.get(5000, TimeUnit.MILLISECONDS); 25 } catch (InterruptedException | ExecutionException | TimeoutException e) { 26 e.printStackTrace(); 27 } 28 29 } 30 31 }
这个对象为空,也就意味着没有通过Spring注解正确的初始化。
确定这个注解的写法是正确的,其他所有的类都是这么写的。
二、那问题在哪里呢?
往上查,看看对这个类的调用情况。
1 ...... 2 JobDetail jobDetail = newJob(JobEndConference.class).withIdentity("job1", "group1").setJobData(dm).build(); 3 ......
原因出来了,newJob传入的对象参数并非Spring注解加载的那个对象。
三、解决办法:
方法1. 从Spring的ApplicationContext获取JobEndConference对象。
方法2. 取消JobEndConference的本身和参数的注解,用new初始化。