Question

如何在QuartzJobBean中注入Spring DAO类，我正在使用在Config类级别实例化的JobDetailFactoryBean。我正在使用Spring4 Quartz 2.2.1 Annotation方法

@Configuration
public class SchedulerConfig {
    @Bean
    public JobDetailFactoryBean jobDetailFactoryBean() {
        JobDetailFactoryBean factory = new JobDetailFactoryBean();
        factory.setJobClass(SchedulerService.class);

        //Should I inject DAO here?

        factory.setGroup("mygroup");
        factory.setName("myjob");
        return factory;
    }
}

QuartzJobBean已扩展为执行

@PersistJobDataAfterExecution
@DisallowConcurrentExecution
@Service
public class SchedulerService extends QuartzJobBean {

    @Autowire
    public SchedulerDAO schDAO;

    protected void executeInternal(JobExecutionContext ctx) throws JobExecutionException {

        System.out.println("---SchedulerService .executeInternal ----");

        try {
            init(ctx.getJobDetail().getJobDataMap(), 
            ctx.getScheduler().getContext());
        } catch (SchedulerException e) {
            e.printStackTrace();
        }

        // I want to do DAO methods used here - how to do that? 
        // Can get access to DAO
        schDAO.getSomeMethods();
    }
}

Answer 1

你的问题是Quartz对你的配置类一无所知，所以它不能自动装配一个未知的bean。转到SchedulerConfig.java并将您的服务或DAO声明为自动装配，然后使用jobdata并映射此对象以便在Quartz中传递。然后你可以在Quartz的executeInternal方法中使用它。例如

@Configuration 
public class mplampla{ 
@Autowired
private YourDAO dao;
@Bean
public JobDetailFactoryBean jobDetailFactoryBean(){
    JobDetailFactoryBean factory = new JobDetailFactoryBean();
    Map<String,Object> map = new HashMap<String,Object>();
    map.put("YourDAO", dao);
    factory.setJobDataAsMap(map);
    return factory;
}
}

然后在你的YourJob.java

中

public class YourJob extends QuartzJobBean {
@Override
protected void executeInternal(JobExecutionContext ctx) throws JobExecutionException {
    JobDataMap dataMap = ctx.getJobDetail().getJobDataMap();
    YourDAO dao = (YourDAO) dataMap.get("YourDAO");
    dao.getMethods();
}
}

如果您使用@Service类和YourDAO类作为@Transational，请小心，您将收到有关未声明的Bean的错误。在这种情况下，您必须传递DAO的接口。

如何使用JobDetailFactoryBean注释方式在QuartzJobBean中注入Spring DAO类

1 个答案: