quartz autowired null Service无法注解，Job无法执行

男娘i 2022-01-22 13:05 117阅读 0赞

类似所谓的解决方案很多，但是大部分都试了下，不太好用。

最终通过，Stackoverflow解决：

[https://stackoverflow.com/questions/48577810/how-to-autowired-in-quartz?r=SearchResults][https_stackoverflow.com_questions_48577810_how-to-autowired-in-quartz_r_SearchResults]

原因，quartz和Spring容器上下文context不在一起，而job里需要通过autowired来获得Service对象进行业务操作。

1. 先通过BeanFactory来将两个context打通，使得quartz使用Spring的context

@Component
    public final class ApplicationContextHolder extends SpringBeanJobFactory implements ApplicationContextAware {
    
      private static ApplicationContext context;
    
      private transient AutowireCapableBeanFactory beanFactory;
    
      @Override
      public void setApplicationContext(ApplicationContext ctx) throws BeansException {
        beanFactory = ctx.getAutowireCapableBeanFactory();
        context = ctx;
      }
    
      @Override
      protected Object createJobInstance(final TriggerFiredBundle bundle) throws Exception {
        final Object job = super.createJobInstance(bundle);
        beanFactory.autowireBean(job);
        return job;
      }
    
      public static ApplicationContext getContext() {
        return context;
      }
    }

2. 在Config里，使用Spring Context创建JobFactory

@Configuration
    public class QuartzSchedulerConfiguration {
    
      @Autowired
      private ApplicationContext applicationContext;
    
      /**
       * Create the job factory bean
       * @return Job factory bean
       */
      @Bean
      public JobFactory jobFactory() {
        ApplicationContextHolder jobFactory = new ApplicationContextHolder();
        jobFactory.setApplicationContext(applicationContext);
        return jobFactory;
      }
    
      /**
       * Create the Scheduler Factory bean
       * @return scheduler factory object
       */
      @Bean
      public SchedulerFactoryBean schedulerFactory() {
        SchedulerFactoryBean factory = new SchedulerFactoryBean();
        factory.setAutoStartup(true);
        factory.setSchedulerName("My Scheduler");
        factory.setOverwriteExistingJobs(true);
        factory.setJobFactory(jobFactory());
        return factory;
      }
    }

[https_stackoverflow.com_questions_48577810_how-to-autowired-in-quartz_r_SearchResults]: https://stackoverflow.com/questions/48577810/how-to-autowired-in-quartz?r=SearchResults