如何在 javaconfig 中使用 SchedulerFactoryBean.schedulerContextAsMap

问题描述

我使用 Spring 4.0 并将项目从 xml 移动到 java-config，除了访问 QuartzJobBean.executeInternal 中的 @Service("scheduleService") 注释类外，一切正常代码>.

I use Spring 4.0 and have moved a project from xml to java-config, and everything works except accessing an @Service("scheduleService") annotated class from QuartzJobBean.executeInternal.

我必须使其工作的 xml 位是:

The xml-bit I had to make it work was:

<bean id="schedulerFactoryBean" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
    <property name="schedulerContextAsMap">
        <map>
            <entry key="scheduleService" value-ref="scheduleService" />
            <entry key="knxUtil" value-ref="knxUtil" />
        </map>
    </property>
</bean>

然后，为了在 @Service("scheduleService") 内调度作业，我使用了:

Then, for scheduling the Job inside @Service("scheduleService") I used:

JobBuilder jobBuilder = JobBuilder.newJob(ScheduledActionRunner.class)

此外，为了实际执行Job，我是这样工作的:

Furthermore, to actually execute the Job I had it working like this:

@Component
public class ScheduledActionRunner extends QuartzJobBean {

    private KNXUtil         knxUtil;

    private ScheduleService scheduleService;

    public ScheduledActionRunner() {
    }

    @Autowired
    public void setScheduleService(ScheduleService scheduleService) {
        this.scheduleService = scheduleService;
    }

    @Autowired
    public void setKnxUtil(KNXUtil knxUtil) {
        this.knxUtil = knxUtil;
    }

    @Override
    public void executeInternal(JobExecutionContext context) throws JobExecutionException {

        JobDataMap jobDataMap = context.getMergedJobDataMap();

        String scheduleId = jobDataMap.getString("scheduleId");

        Schedule schedule = scheduleService.get(scheduleId);

        Set<ScheduledAction> actions = schedule.getScheduledActions();

        for (ScheduledAction scheduledAction : actions) {
            scheduledAction.getAction().execute(logger, knxUtil);
        }

    }

如上所述，所有这些都在使用 xml-configuration 时起作用.

As mentioned above, all this used to work while using xml-configuration.

现在，使用 java-config，它在 scheduleService.get(scheduleId);

Now, with java-config, it fails with NullPointerException at scheduleService.get(scheduleId);

对于 java 配置，我像这样设置 SchedulerFactoryBean:

For java-configuration I set up the SchedulerFactoryBean like this:

@Configuration
@PropertySource(value = "classpath:properties.${target_env:dev}.properties")
@ComponentScan(basePackages = { "com.example.smart" }
public class SpringRootApplication {

    @Autowired
    private ScheduleService scheduleService;

    @Autowired
    private KNXUtil         knxUtil;

    @Bean
    SchedulerFactoryBean schedulerFactoryBean() {

        SchedulerFactoryBean bean = new SchedulerFactoryBean();

        Map<String, Object> schedulerContextAsMap = new HashMap<String, Object>();
        schedulerContextAsMap.put("scheduleService", scheduleService);
        schedulerContextAsMap.put("knxUtil", knxUtil);

        bean.setSchedulerContextAsMap(schedulerContextAsMap);

        return bean;
    }
}

如何使用 java-config 在 schedulerContextAsMap 中插入对 scheduleService 的引用?

How can I insert the reference to scheduleService inside the schedulerContextAsMap using java-config?

推荐答案

我在这里找到了答案:https://stackoverflow.com/a/17394905/272180

解决办法是在设置SchedulerFactoryBean时去掉bean.setSchedulerContextAsMap(schedulerContextAsMap)，修改executeInternal如下:

The solution was to remove bean.setSchedulerContextAsMap(schedulerContextAsMap) when setting up SchedulerFactoryBean, and modify executeInternal as follows:

@Autowired
private KNXUtil         knxUtil;

@Autowired
private ScheduleService scheduleService;

@Override
public void executeInternal(JobExecutionContext context) throws JobExecutionException {

    // Adding this autowires everything as needed
    SpringBeanAutowiringSupport.processInjectionBasedOnCurrentContext(this);

    JobDataMap jobDataMap = context.getMergedJobDataMap();

    String scheduleId = jobDataMap.getString("scheduleId");

    Schedule schedule = scheduleService.get(scheduleId);

    Set<ScheduledAction> actions = schedule.getScheduledActions();

    for (ScheduledAction scheduledAction : actions) {
        scheduledAction.getAction().execute(logger, knxUtil);
    }

}

这也简化了代码，因为不再需要 @Autowired 带注释的 setter.

This also simplifies the code since the @Autowired annotated setters are not needed anymore.

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