job存在数据库中，能够进行动态的增增删改查，近期遇到了怎样获取ApplicationContext上下文的问题。解决的方法例如以下

applicationContext-quartz.xml

<?xml version="1.0" encoding="UTF-8"?
>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">

<beans>
    <bean name="quartzScheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="applicationContextSchedulerContextKey" value="http://www.mamicode.com/applicationContextKey"/>
        <property name="configLocation" value="http://www.mamicode.com/classpath:quartz.properties"/>
    </bean>
</beans>

<!--applicationContextSchedulerContextKey： 是org.springframework.scheduling.quartz.SchedulerFactoryBean这个类中把spring上下 文以key/value的方式存放在了quartz的上下文中了。能够用applicationContextSchedulerContextKey所定义的key得到相应的spring上下文-->  

相应的job任务

public class QuartzJobBean implements Job {


	/* (non-Javadoc)
	 * @see org.quartz.Job#execute(org.quartz.JobExecutionContext)
	 */
	@Override
	public void execute(JobExecutionContext jobContext) throws JobExecutionException {
		
		
		String jobId = jobContext.getJobDetail().getDescription();
		String serviceId = jobContext.getTrigger().getDescription();
		

		ApplicationContext applicationContext=null;
		try {
			applicationContext=getApplicationContext(jobContext);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		WebServiceService webServiceService = (WebServiceService) applicationContext.getBean("webServiceService");
		WebServicePOJO  webService = webServiceService.getWebService(serviceId);
		ScheduleService.schedule(webService.getNameSpace(), webService.getServiceName(), webService.getWsdlURL(), webService.getMethod());
	}
	
	private static final String APPLICATION_CONTEXT_KEY = "applicationContextKey";
	private ApplicationContext getApplicationContext(JobExecutionContext context) throws Exception {
			ApplicationContext appCtx = null;
			appCtx = (ApplicationContext) context.getScheduler().getContext().get(APPLICATION_CONTEXT_KEY);
			if (appCtx == null) {
				throw new JobExecutionException("No application context available in scheduler context for key \"" + APPLICATION_CONTEXT_KEY + "\"");
			}
			return appCtx;
	}


}

APPLICATION_CONTEXT_KEY的值是第一个XML中配置的值，通过getApplicationContext方法传入quartz的context就可以获取ApplicationContext上下文，进而获取相应的bean