Spring Boot集成Quartz注入Spring管理的類的方法

更新時(shí)間：2018年04月22日 16:02:31 作者：滄海一滴

本篇文章主要介紹了Spring Boot集成Quartz注入Spring管理的類的方法，小編覺得挺不錯的，現(xiàn)在分享給大家，也給大家做個參考。一起跟隨小編過來看看吧

在Spring Boot中使用Quartz時(shí)，在JOB中一般需要引用Spring管理的Bean，通過定義Job Factory實(shí)現(xiàn)自動注入。

Spring有自己的Schedule定時(shí)任務(wù)，在Spring boot中使用的時(shí)候，不能動態(tài)管理JOB，于是就使用Quartz來實(shí)現(xiàn)。

在Spring Boot中配置Quartz：

 import java.io.IOException;
import java.util.Properties;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.PropertiesFactoryBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.quartz.SchedulerFactoryBean;

@Configuration
@EnableScheduling
public class QuartzSchedule {

  @Autowired
  private MyJobFactory myJobFactory;

  @Bean
  public SchedulerFactoryBean schedulerFactoryBean() throws IOException {
    SchedulerFactoryBean factory = new SchedulerFactoryBean();

    factory.setOverwriteExistingJobs(true);

    // 延時(shí)啟動
    factory.setStartupDelay(20);

    // 加載quartz數(shù)據(jù)源配置
    factory.setQuartzProperties(quartzProperties());

    // 自定義Job Factory，用于Spring注入
    factory.setJobFactory(myJobFactory);

    return factory;
  }

  /**
   * 加載quartz數(shù)據(jù)源配置
   * 
   * @return
   * @throws IOException
   */
  @Bean
  public Properties quartzProperties() throws IOException {
    PropertiesFactoryBean propertiesFactoryBean = new PropertiesFactoryBean();
    propertiesFactoryBean.setLocation(new ClassPathResource("/quartz.properties"));
    propertiesFactoryBean.afterPropertiesSet();
    return propertiesFactoryBean.getObject();
  }

}

為了在JOB中使用Spring管理的Bean，需要重新定義一個Job Factory：

 @Component
public class MyJobFactory extends AdaptableJobFactory {
  
  @Autowired
  private AutowireCapableBeanFactory capableBeanFactory;

  @Override
  protected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {
    // 調(diào)用父類的方法
    Object jobInstance = super.createJobInstance(bundle);
    // 進(jìn)行注入
    capableBeanFactory.autowireBean(jobInstance);
    return jobInstance;
  }
}

然后在JOB中就可以使用Spring管理的Bean了

 public class MyJob implements Job, Serializable {
  private static final long serialVersionUID = 1L;
  private Logger logger = LoggerFactory.getLogger(this.getClass());

  @Autowired
  private SomeService someService;

  @Override
  public void execute(JobExecutionContext context) throws JobExecutionException {
    someService.doSomething();
  }
}

下面代碼是創(chuàng)建JOB：

      JobDetail jobDetail = JobBuilder.newJob(((Job) Class.forName(job.getClazz()).newInstance()).getClass())
          .withIdentity(job.getJobName(), job.getJobGroup()).build();
      jobDetail.getJobDataMap().put("extdata", job.getExtData());

      // 表達(dá)式調(diào)度構(gòu)建器
      CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(job.getCronExpression())
          .withMisfireHandlingInstructionDoNothing();
      // 構(gòu)建一個trigger
      TriggerBuilder<CronTrigger> triggerBuilder = TriggerBuilder.newTrigger().withIdentity(triggerKey)
          .withSchedule(scheduleBuilder);
      if (job.getStartTime() != null) {
        triggerBuilder.startAt(job.getStartTime());
      }
      if (job.getEndTime() != null) {
        triggerBuilder.endAt(job.getEndTime());
      }
      CronTrigger trigger = triggerBuilder.build();

      scheduler.scheduleJob(jobDetail, trigger);// 注入到管理類

以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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