spring timetask 定时任务调度

定时任务调度即在设置的特定时间执行特定的任务，不需要人工干预。

spring timertask

spring 自身所带定时任务类，不需要引入第三方jar包，使用方式如下：

EmailReportTask.java

applicationContext-springtask.xml

<pre name="code" class="java">
<bean id="emailReportTask" class="com.zwx.core.EmailReportTask" />
<bean id="emailReportScheduleReportTask" class="org.springframework.scheduling.timer.ScheduledTimerTask">
<property name="timerTask" ref="emailReportTask" />
<property name="period" value="2000" />
<property name="delay" value="1000" />
</bean>
<pre name="code" class="java">
<bean class="org.springframework.scheduling.timer.TimerFactoryBean"><property name="scheduledTimerTasks"><list><ref bean="emailReportScheduleReportTask" /></list></property></bean>

使用第三方定时器实现定时任务，优点：能够对执行时间点的精确配置

自定义任务类：QuartzJob.java

配置：applicationContext-quartz.xml

<bean id="quartzJob" class="com.writchie.quartz.QuartzJob"></bean>
<bean id="jobtask" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
<property name="targetObject">
<ref bean="quartzJob"/>
</property>
<property name="targetMethod">
<value>work</value>
</property>
</bean>
<bean id="doTime" class="org.springframework.scheduling.quartz.CronTriggerBean">
<property name="jobDetail">
<ref bean="jobtask"/>
</property>
<property name="cronExpression">
<value>10,15,20,25,30,35,40,45,50,55 * * * * ?</value>
</property>
</bean>
<bean id="startQuertz" lazy-init="false" autowire="no" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<list>
<ref bean="doTime"/>
</list>
</property>
</bean>
</beans>

所需第三方jar包：quartz-all-1.8.3.jar