java - 使用 Spring Boot 在 Quartz 中 Autowiring 多个作业不起作用

Question

我尝试在 Spring 使用 quartz 调度器。配置多个作业时出现以下异常

Parameter 0 of method jobTrigger in Job2 required a bean of type 'org.quartz.JobDetail' that could not be found.

quartz - v2.3， Spring - v4.2.x

配置类

@Configuration
 public class SchedulerConfig {

private static final Logger LOG = LoggerFactory.getLogger(SchedulerConfig.class);

@Autowired
List<Trigger> triggers;

@Bean
public JobFactory jobFactory(ApplicationContext applicationContext) {
    AutowiringSpringBeanJobFactory jobFactory = new AutowiringSpringBeanJobFactory();
    jobFactory.setApplicationContext(applicationContext);
    return jobFactory;
}

@Bean
public SchedulerFactoryBean schedulerFactoryBean(JobFactory jobFactory)  throws IOException {
    SchedulerFactoryBean factory = new SchedulerFactoryBean();
          factory.setAutoStartup(true);
    factory.setJobFactory(jobFactory);
         factory.setQuartzProperties(quartzProperties());
    if (triggers != null && !triggers.isEmpty()) {
         LOG.info("starting jobs... Total Triggers - " + triggers.size());
        factory.setTriggers(triggers.toArray(new Trigger[triggers.size()]));
    }

    return factory;
}

@Bean
public Properties quartzProperties() throws IOException {
    PropertiesFactoryBean propertiesFactoryBean = new PropertiesFactoryBean();
    propertiesFactoryBean.setLocation(new ClassPathResource("/quartz.properties"));
    propertiesFactoryBean.afterPropertiesSet();
    return propertiesFactoryBean.getObject();
}


public static CronTriggerFactoryBean createCronTrigger(JobDetail jobDetail, String cronExpression) {
    CronTriggerFactoryBean factoryBean = new CronTriggerFactoryBean();
    factoryBean.setJobDetail(jobDetail);
    factoryBean.setCronExpression(cronExpression);
    factoryBean.setMisfireInstruction(SimpleTrigger.MISFIRE_INSTRUCTION_FIRE_NOW);
    return factoryBean;
}

public static JobDetailFactoryBean createJobDetail(Class jobClass) {
    JobDetailFactoryBean factoryBean = new JobDetailFactoryBean();
    factoryBean.setJobClass(jobClass);
    factoryBean.setDurability(true);
    return factoryBean;
}

SpringBeanJobFactory

public final class AutowiringSpringBeanJobFactory extends SpringBeanJobFactory implements ApplicationContextAware {

private static final Logger LOG = LoggerFactory.getLogger(AutowiringSpringBeanJobFactory.class);

private transient AutowireCapableBeanFactory beanFactory;

@Override
public void setApplicationContext(final ApplicationContext context) {
    beanFactory = context.getAutowireCapableBeanFactory();
}

@Override
protected Object createJobInstance(final TriggerFiredBundle bundle) throws Exception {
    final Object job = super.createJobInstance(bundle);
    LOG.info("create job instance");
    beanFactory.autowireBean(job);
    return job;
}

工作 1

@Component
@DisallowConcurrentExecution
public class Job1 implements Job {

private final Logger log = LoggerFactory.getLogger(this.getClass());

@Value("${schedule}")
private String frequency;

@Autowired
private Service service;

@Override
public void execute(JobExecutionContext jobExecutionContext) {
    log.info("execute");
}

@Bean(name = "jobBean1")
public JobDetailFactoryBean job() {
    return SchedulerConfig.createJobDetail(this.getClass());
}

@Bean(name = "jobBean1Trigger")
public CronTriggerFactoryBean jobTrigger(@Qualifier("jobBean1")JobDetail jobDetail) {
    return SchedulerConfig.createCronTrigger(jobDetail, frequency);
}

工作 2

@Component
@DisallowConcurrentExecution
public class Job2 implements Job {

private final Logger log = LoggerFactory.getLogger(this.getClass());

@Value("${schedule}")
private String frequency;

@Autowired
private Service service;

@Override
public void execute(JobExecutionContext jobExecutionContext) {
    log.info("execute");
}

@Bean(name = "jobBean2")
public JobDetailFactoryBean job() {
    return SchedulerConfig.createJobDetail(this.getClass());
}

@Bean(name = "jobBean2Trigger")
public CronTriggerFactoryBean jobTrigger(@Qualifier("jobBean2")JobDetail jobDetail) {
    return SchedulerConfig.createCronTrigger(jobDetail, frequency);
}

服务类有 Spring JPA 存储库。 问题的根本原因是下面的 Autowiring 服务。如果我从两个作业中删除下面的 Autowiring 服务，它就可以正常工作。

@Autowired private Service service;

如果这个 Autowiring 的bean只有一个job，那么也不异常(exception)。 如何使用相同的 Autowiring 依赖项配置多个作业？ 是什么导致了这个问题？

Answer 1

这是 http://www.baeldung.com/spring-quartz-schedule 的修改版本您引用的用于在一个配置文件中处理多个 Quartz 作业的文件。为简洁起见，我不包括整个 QrtzSheduler 类，只是替换调度程序方法和在触发器中使用 @Qualifier 引用:

...
@Bean
public Scheduler scheduler(Map<String, JobDetail> jobMap, Set<? extends Trigger> triggers) throws SchedulerException, IOException {

    StdSchedulerFactory factory = new StdSchedulerFactory();
    factory.initialize(new ClassPathResource("quartz.properties").getInputStream());

    logger.debug("Getting a handle to the Scheduler");
    Scheduler scheduler = factory.getScheduler();
    scheduler.setJobFactory(springBeanJobFactory());
    Map<JobDetail,Set<? extends Trigger>> triggersAndJobs = new HashMap<JobDetail,Set<? extends Trigger>>;
    for(JobDetail jobDetail : jobMap.getValues()){
        for(Trigger trigger : triggers){
            if(trigger.getJobKey().equals(jobDetail.getKey())){
               Set<Trigger> set = new HashSet<>();
               set.add(trigger);
               triggerAndJobs.put(jobDetail,set);
            }
        }
    }
    scheduler.scheduleJobs(triggersAndJobs, false);

    logger.debug("Starting Scheduler threads");
    scheduler.start();
    return scheduler;
}

@Bean(name="jobOne")
public JobDetail jobDetailOne() {

    ...
}

@Bean(name="jobTwo")
public JobDetail jobDetailTwo() {

   ...
}

@Bean
public Trigger triggerOne(@Qualifier("jobOne")JobDetail jobDetail) {

   ...
}

@Bean
public Trigger triggerTwo(@Qualifier("jobTwo")JobDetail jobDetail) {

   ...
}