我遇到了Quartz和Spring实现的问题。 当我在Quartz Job中自动装配一个组件时,我收到了这个错误:
org.quartz.SchedulerException: Job instantiation failed
at org.springframework.scheduling.quartz.AdaptableJobFactory.newJob(AdaptableJobFactory.java:45) ~[spring-context-support-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.quartz.core.JobRunShell.initialize(JobRunShell.java:127) ~[quartz-2.2.3.jar:na]
at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:375) [quartz-2.2.3.jar:na]Caused by: java.lang.InstantiationException: com.kaloudia.api.quartz.jobs.ArticlePublicationJob
at java.lang.Class.newInstance(Class.java:427) ~[na:1.8.0_131]
at org.springframework.scheduling.quartz.AdaptableJobFactory.createJobInstance(AdaptableJobFactory.java:58) ~[spring-context-support-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.scheduling.quartz.AdaptableJobFactory.newJob(AdaptableJobFactory.java:41) ~[spring-context-support-4.3.3.RELEASE.jar:4.3.3.RELEASE]
... 2 common frames omittedCaused by: java.lang.NoSuchMethodException: com.kaloudia.api.quartz.jobs.ArticlePublicationJob.<init>()
at java.lang.Class.getConstructor0(Class.java:3082) ~[na:1.8.0_131]
at java.lang.Class.newInstance(Class.java:412) ~[na:1.8.0_131]
... 4 common frames omitted
我使用@Autowired注释来获取BlogManager的实例,但是当我的代码去掉时,我可以看到这个变量为null。 您有什么想法,我如何在Quartz Job类中获得BlogManager类?
我的工作班:
@Service
public class ArticlePublicationJob implements Job {
private Logger logger = LoggerFactory.getLogger(ArticlePublicationJob.class);
public static final String ARTICLE_ID = "ARTICLE_ID";
private final BlogManager blogManager;
@Autowired
public ArticlePublicationJob(BlogManager blogManager) {
this.blogManager = blogManager;
}
public void execute(JobExecutionContext context)
throws JobExecutionException {
JobDataMap data = context.getJobDetail().getJobDataMap();
Integer articleId = data.getInt(ARTICLE_ID);
blogManager.actionOnArticle(articleId, "publish", 0);
}
}
和我的Quartz Manager:
public class QuartzManager {
private final SchedulerFactoryBean schedulerFactoryBean;
@Inject
public QuartzManager(SchedulerFactoryBean schedulerFactoryBean) {
this.schedulerFactoryBean = schedulerFactoryBean;
}
public void schedulePublishArticleTrigger(Integer articleId, java.util.Calendar publishDate) throws SchedulerException {
Scheduler sched = schedulerFactoryBean.getScheduler();
JobDetail job = JobBuilder.newJob(ArticlePublicationJob.class)
.withIdentity("article_" + articleId, "blog").build();
job.getJobDataMap().put(ArticlePublicationJob.ARTICLE_ID, articleId);
Trigger trigger = TriggerBuilder.newTrigger()
.withIdentity("PublishArticle_" + articleId, "blog")
.startAt(publishDate.getTime())
.forJob("article_" + articleId, "blog")
.build();
sched.scheduleJob(job, trigger);
}
}