Spring Boot集成Quartz注入Spring管理的类

Posted 2020-10-18 air_balloon

摘要: 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

 

 https://my.oschina.net/hhaijun/blog/698498