如今有这样一个需求：我们不知道管理员想设定过多厂时间运行主任务，须要在配置文件定义。在配置好后须要马上运行。实现热部署。

private static long curModifiedTime;

	static {

		try {

			curModifiedTime = new File(filePath).lastModified();

			System.out.println("当前文件改动时间为 " +curModifiedTime);

		} catch (Exception e) {

			e.printStackTrace();

		}

	}

此时获取到文件本来的时间

public static boolean isModifiedValue()

  {

  	boolean flag = false;

  	long lastModifiedTime = new File(filePath).lastModified();

  	if(lastModifiedTime > curModifiedTime) {

  		curModifiedTime= lastModifiedTime;

  		flag = true;

  	}

  	return flag;

  }

读取文件最后改动地址。若大于初始时间。则将最后改动时间赋给初始时间

public boolean reSetTaskSchedulerzIntervalTime(){

		boolean flag = false;

		//监听到配置文件改动

		if(PropertiesUtil.isModifiedValue()) {

			long time = 0L;

			try {

				time = Integer.parseInt(PropertiesUtil.readValue(TaskSchedulerzIntervalTime));

				simpleTrigger.setRepeatInterval(time);

				Scheduler scheduler = quartzScheduler.getScheduler();

				String jobName = simpleTrigger.getName();

				String group = simpleTrigger.getGroup();

				try {

					scheduler.pauseJob(jobName, group);

					scheduler.unscheduleJob(jobName,group);

					scheduler.scheduleJob(simpleTrigger);

					scheduler.resumeJob(jobName, group);

					flag = true;

				} catch (SchedulerException e1) {

					e1.printStackTrace();

				}

			} catch (NumberFormatException e) {

				System.out.println("定时任务非数字！

");

				e.printStackTrace();

			}

		}

		return flag;

	}

当中，quartzScheduler和simpleTrigger是注入进去的，在Spring中整合Quartz时已经定义好，配置文件例如以下

<bean name="quartzScheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">

		<property name="triggers">

			<list>

				<ref bean="simpleTrigger" />

			</list>

		</property>

		<property name="configLocation" value="classpath:quartz.properties" />

	</bean>

	<bean id="simpleTrigger" class="org.springframework.scheduling.quartz.SimpleTriggerBean">

		<property name="jobDetail">

			<ref bean="jobDetail" />

		</property>

		<property name="startDelay">

			<value>0</value>

		</property>

		<property name="repeatInterval" value="${taskSchedulerzIntervalTime}" />

	</bean>

	<bean id="jobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">

		<property name="targetObject" ref="taskScheduler" />

		<property name="targetMethod" value="run" />

	</bean>

之前的调度时间是在里面写死的。如今是通过配置文件来读取。例如以下

<context:property-placeholder location="classpath:config.properties,classpath:jdbc.properties" />

測试例如以下

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