quartz定时任务实现只执行一次，以后不再执行

按说只在tomcat启动时执行一次，我们可以用监听器来实现，但是有些开发框架中因特殊场景不适合用监听器。那么定时任务也可以实现只执行一次的操作。配置如下

好使的话大家给个赞

<?xml version="1.0" encoding="UTF-8"?>
<beans 
   xmlns="http://www.springframework.org/schema/beans"
   xmlns:mvc="http://www.springframework.org/schema/mvc" 
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context="http://www.springframework.org/schema/context" 
   xmlns:tx="http://www.springframework.org/schema/tx"
   xmlns:util="http://www.springframework.org/schema/util"
   xsi:schemaLocation="
      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd  
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
 
    

    <bean id="publicWebServiceJob" class="cn.org.site.business.quartz.PublicWebServiceScheduleJob"/>
    <bean id="publicWebServiceJobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        <property name="targetObject" ref="publicWebServiceJob" />
        <property name="targetMethod" value="doJob"></property>
        <!--默认允许并发执行，设置为false 防止并发执行 发生死锁问题 -->
        <property name="concurrent" value="false"/>

    </bean>



<!-- quartz一分钟执行一次的实现方式 -->
    <!-- <bean id="publicWebServiceTriggerBean" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
        <property name="jobDetail" ref="publicWebServiceJobDetail"></property>
        <property name="cronExpression" value="0 */1 * * * ?"></property>
        <property name="description" value="定时"></property>
    </bean>-->


    <!-- quartz实例化5秒后执行一次job的方式 -->
    <bean id="publicWebServiceTriggerBean" class="org.springframework.scheduling.quartz.SimpleTriggerFactoryBean">
        <property name="jobDetail" ref="publicWebServiceJobDetail" />
        <property name="startDelay" value="5000" /> <!-- 启动延迟  单位/毫秒-->

        <property name="repeatCount" value="0" />  <!--  重复次数  -->
    </bean>

    <!-- 触发器-->
    <bean id="schedulerFactoryBean-em" lazy-init="false"  class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="triggers">
            <list>
                
                <ref bean="publicWebServiceTriggerBean"/>
            </list>
        </property>
    </bean>
</beans>