![](/img/trans.png)
[英]Spring Quartz Scheduler - Run job after the other has completed
[英]Insert data after completing job in Quartz scheduler using spring
我正在处理一项任务,我需要在数据库中保存作业状态,但是当我尝试这样做时,它给了我java.lang.nullpointerexception
。 我认为这是因为每当我尝试从数据库中选择/保存/更新任何记录时,它只会给出类似于此的错误。
这是我的代码
public class PostFBJob implements Job {
private SchedulerService schedulerService;
private SubCampaignService subCampaignService;
@SuppressWarnings("unchecked")
public void execute(JobExecutionContext context) throws JobExecutionException {
JobDetail jobDetail = context.getJobDetail();
JobDataMap jobDataMap = jobDetail.getJobDataMap();
schedulerService = (SchedulerService) jobDataMap.get("schedulerService");
SubCampaign subCampaign = (SubCampaign) jobDataMap.get("subCampaign");
if (prStreamItem.getName().equalsIgnoreCase("Facebook") && StringUtils.isNotBlank(branch.getFbAccessToken())) {
FacebookService facebookService = FacebookService.getSingleton();
try {
subCampaign.setStatus("Completed");
subCampaign.setMessage("Completed");
subCampaignService.updateSubCampaign(subCampaign);
} catch (Exception e) {
log.error("", e);
}
}
}
}
例外
java.lang.NullPointerException
at com.ace.Job.SubCampaignJob.execute(SubCampaignJob.java:147)
at org.quartz.core.JobRunShell.run(JobRunShell.java:213)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:557)
Error: java.lang.NullPointerException
请帮我解决这个问题。 我是Spring和Quartz的新手。
提前致谢
由于subCampaignService的null对象导致此异常。 注入只能处理由spring管理的对象。
扫描您要使用服务的所有包。
基于注释的配置
@ComponentScan({"com.ace"})
基于XML的配置
<context:component-scan base-package="com.ace"/>
并在更新前检查null,如下所示:
try {
subCampaign.setStatus("Completed");
subCampaign.setMessage("Completed");
if(subCampaign != null && subCampaignService != null) //Check is not null to subCampaign before update
subCampaignService.updateSubCampaign(subCampaign);
} catch (Exception e) {
log.error("", e);
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.