项目中使用分布式并发部署定时任务，多台跨JVM，按照常理逻辑每个JVM的定时任务会各自运行，这样就会存在问题，多台分布式JVM机器的应用服务同时干活，一个是加重服务负担，另外一个是存在严重的逻辑问题，比如需要回滚的数据，就回滚了多次，刚好quartz提供很好的解决方案。
集群分布式并发环境中使用QUARTZ定时任务调度，会在各个节点会上报任务，存到数据库中，执行时会从数据库中取出触发器来执行，如果触发器的名称和执行时间相同，则只有一个节点去执行此任务。
如果此节点执行失败，则此任务则会被分派到另一节点执行，中途也会自动检查失效的定时调度，发现不成功的，其他节点立马接过来继续完成定时任务。对应的定时任务调度表比较多，有11个。
此方法是结合Spring与quartz，实际解决方案如下：
####applicationContext-scheduler.xml### spring 3.11
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.2.xsd"> <context:annotation-config /> <context:component-scan base-package="com.dennis.walking.api.web.schedule" /> <bean id="rollbackOrderStatus" class="org.springframework.scheduling.quartz.JobDetailFactoryBean"> <property name="jobClass" value="com.dennis.walking.api.web.schedule.ReleaseQtyAndUpdateOrderStatusSchedule" /> <property name="durability" value="true" /> </bean> <bean id="rollbackOrderStatusTrigger" class="com.dennis.walking.api.web.schedule.PersistableCronTriggerFactoryBean"> <property name="jobDetail" ref="rollbackOrderStatus" /> <property name="cronExpression"> <value>0 0/5 * * * ?</value> </property> <property name="timeZone"> <value>GMT+8:00</value> </property> </bean> <bean id="quartzScheduler" parent="baseQuartzScheduler"> <property name="configLocation" value="classpath:quartz.properties" /> <property name="autoStartup" value="true" /> <!-- This name is persisted as SCHED_NAME in db. for local testing could change to unique name to avoid collision with dev server --> <property name="schedulerName" value="apiQuartzScheduler" /> <!-- NOTE: Must add both the jobDetail and trigger to the scheduler! --> <property name="triggers"> <list> <ref bean="rollbackOrderStatusTrigger" /> </list> </property> <property name="jobDetails"> <list> <ref bean="rollbackOrderStatus" /> </list> </property> </bean> <bean id="baseQuartzScheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> <!-- <property name="configLocation" value="classpath:quartz.properties" /> --> <property name=