Spring石英触发程序作业

Question

我有一个Sprint Boot-Java8应用程序，它有一个quartz作业，我在启动时配置该作业并设置一个时间表。该作业按照计划自动运行,这与您对quartz作业的期望一样。然而，现在我希望能够允许用户通过点击前端上的一个按钮手动触发这些作业，而不会扰乱该作业的正常调度。这是我所有的相关档案。

quartz:
    fooCron: 0 0 1 * * ?
    fooGroup: foo-quartz-group

@Configuration
@ConfigurationProperties(prefix = "quartz")
public class QuartzConfig {
    private String fooCron;
    private String fooGroup;

    @Autowired
    private ApplicationContext applicationContext;

    @Autowired
    private PlatformTransactionManager transactionManager;

    @Autowired
    private DataSource dataSource;

    @Bean
    public SchedulerFactoryBean quartzScheduler() {
        AutowiringSpringBeanJobFactory jobFactory = new AutowiringSpringBeanJobFactory();
        jobFactory.setApplicationContext(applicationContext);

        Trigger[] triggers = {fooTrigger().getObject()};

        SchedulerFactoryBean quartzScheduler = new SchedulerFactoryBean();
        quartzScheduler.setJobFactory(jobFactory);
        quartzScheduler.setTransactionManager(transactionManager);
        quartzScheduler.setDataSource(dataSource);
        quartzScheduler.setOverwriteExistingJobs(true);
        quartzScheduler.setSchedulerName("foo-scheduler");
        quartzScheduler.setQuartzProperties(quartzProperties());
        quartzScheduler.setTriggers(triggers);

        return quartzScheduler;
    }

    @Bean
    public CronTriggerFactoryBean fooTrigger() {
        CronTriggerFactoryBean cronTriggerFactoryBean = new CronTriggerFactoryBean();
        cronTriggerFactoryBean.setJobDetail(fooJob().getObject());
        cronTriggerFactoryBean.setCronExpression(fooCron);
        cronTriggerFactoryBean.setGroup(fooGroup);
        return cronTriggerFactoryBean;
    }

    @Bean
    public JobDetailFactoryBean fooJob() {
        JobDetailFactoryBean jobDetailFactoryBean = new JobDetailFactoryBean();
        jobDetailFactoryBean.setJobClass(FooJob.class);
        jobDetailFactoryBean.setGroup(fooGroup);
        jobDetailFactoryBean.setDurability(true);
        return jobDetailFactoryBean;
    }

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

        return properties;
    }

    //setters
}

@Service
public class FooJob implements Job {
    private final FooRepository fooRepo; //This is a repository class annotated with @Repository.

    public FooJob(FooRepository fooRepo) {
        this.fooRepo = fooRepo;
    }

    @Override
    public void execute(final JobExecutionContext context) throws JobExecutionException {
        //do stuff
    }
}

QuartzController.java

@RestController
@RequestMapping("/quartz")
public class QuartzController {
    private SchedulerFactoryBean schedulerFactoryBean;
    private Scheduler scheduler;

    public DevopsController(final SchedulerFactoryBean quartzScheduler) {
        this.schedulerFactoryBean = quartzScheduler;
        scheduler = schedulerFactoryBean.getScheduler();
    }

    @PostMapping("/execute")
    public ResponseEntity executeJob() {
        HttpStatus status = OK;
        try {
            TriggerKey triggerKey = new TriggerKey("fooTrigger", "foo-quartz-group");
            Trigger trigger = scheduler.getTrigger(triggerKey);
            ScheduleBuilder scheduleBuilder = SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(1).withRepeatCount(0);
            JobDetail jobDetail = scheduler.getJobDetail(trigger.getJobKey());
            Trigger newTrigger = TriggerBuilder.newTrigger()
                                               .forJob(jobDetail)
                                               .startNow()
                                               .withIdentity(triggerKey)
                                               .withSchedule(scheduleBuilder)
                                               .startAt(Date.from(LocalDate.now().atStartOfDay().atZone(ZoneId.systemDefault()).toInstant()))
                                               .build();
            //I have tried all 3 of the following lines
            scheduler.scheduleJob(jobDetail, new HashSet<>(Arrays.asList(trigger)), true);
            //scheduler.addJob(jobDetail, true);
            //scheduler.rescheduleJob(triggerKey, newTrigger);
        } catch (SchedulerException e) {
            status = BAD_REQUEST;
        }

        return new ResponseEntity<>(status);
    }
}

但每次运行应用程序并点击控制器的schedulejob方法时，都会在控制台中出现以下错误：

org.quartz.SchedulerException: Job instantiation failed
    at org.springframework.scheduling.quartz.AdaptableJobFactory.newJob(AdaptableJobFactory.java:45)
    at org.quartz.core.JobRunShell.initialize(JobRunShell.java:127)
    at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:375)
Caused by: java.lang.InstantiationException: com.test.jobs.FooJob
    at java.lang.Class.newInstance(Class.java:427)
    at org.springframework.scheduling.quartz.AdaptableJobFactory.createJobInstance(AdaptableJobFactory.java:58)
    at org.springframework.scheduling.quartz.SpringBeanJobFactory.createJobInstance(SpringBeanJobFactory.java:74)
    at com.test.config.AutowiringSpringBeanJobFactory.createJobInstance(AutowiringSpringBeanJobFactory.java:27)
    at org.springframework.scheduling.quartz.AdaptableJobFactory.newJob(AdaptableJobFactory.java:41)
    ... 2 common frames omitted
Caused by: java.lang.NoSuchMethodException: com.test.jobs.FooJob.<init>()
    at java.lang.Class.getConstructor0(Class.java:3082)
    at java.lang.Class.newInstance(Class.java:412)
    ... 6 common frames omitted

我到底做错了什么？如何使此作业按计划自动运行,但也可根据手动请求执行？

我正在使用sprint boot1.5.9.release和quartz2.2.1

Answer 1

正如@scary-wombat所说，您必须在foojob中添加一个无参数构造函数。您的方法的问题是，以这种方式无法获得fooRepository。

public FooJob() {
}

您有2个选项

1）如果fooRepository有@respository注释，则可以向构造函数添加@autowired注释。

@Autowired
public FooJob(FooRepository fooRepo) {
        this.fooRepo = fooRepo;
}

@Configuration 
public class Config {}

以我的浅见，第一种选择看起来更好。

如果有用就告诉我！