Spring Boot集成Quartz注入Spring管理的类的方法

在Spring Boot中使用Quartz时，在JOB中一般需要引用Spring管理的Bean，通过定义Job Factory实现自动注入。

Spring有自己的Schedule定时任务，在Spring boot中使用的时候，不能动态管理JOB，于是就使用Quartz来实现。

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);

    // 延时启动
    factory.setStartupDelay(20);

    // 加载quartz数据源配置
    factory.setQuartzProperties(quartzProperties());

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

    return factory;
  }

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

}

为了在JOB中使用Spring管理的Bean，需要重新定义一个Job Factory：

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

  @Override
  protected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {
    // 调用父类的方法
    Object jobInstance = super.createJobInstance(bundle);
    // 进行注入
    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();
  }
}

下面代码是创建JOB：

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

      // 表达式调度构建器
      CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(job.getCronExpression())
          .withMisfireHandlingInstructionDoNothing();
      // 构建一个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);// 注入到管理类

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。