1、
准备Jar包
在Spring所有包齐全的前提下还要导入一个定时器工具包:quartz-1.6.2.jar <
http://www.opensymphony.com/quartz/download.action>
2、
开发定时器类,实例代码如下:
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public class TriggerUtil
{
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private TriggerUtil()
{
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}
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public void expDataBase()
{
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System.out.println("trigger actived
..");
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}
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} 3、
配置定时任务
为了清晰代码结构,单独建立一个配置定时任务的配置文件context-trigger.xml,并在applicationContext.xml进行import:
<import resource="context-trigger.xml"/> context-trigger.xml内容如下:
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<?xml version="1.0" encoding="UTF-8"?>
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<beans
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xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
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<!-- 定时器配置 -->
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<!-- 配置定时器类 -->
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<bean id="triggerUtil" class="com.pro.base.util.TriggerUtil" >
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</bean>
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<!-- 指定任务(方法) -->
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<bean id="expDataBaseJob"
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class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
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<property name="targetObject">
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<ref local="triggerUtil" />
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</property>
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<property name="targetMethod">
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<value>expDataBase</value>
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</property>
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</bean>
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<!-- 设定计划执行时间 -->
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<bean id="expDataBaseTrigger"
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class="org.springframework.scheduling.quartz.CronTriggerBean">
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<property name="jobDetail">
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<ref local="expDataBaseJob" />
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</property>
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<property name="cronExpression">
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<value>00 33 21 * * ?</value>
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</property>
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</bean>
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<!-- 任务执行器配置 -->
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<bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
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<property name="triggers">
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<list>
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<ref local="expDataBaseTrigger" />
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</list>
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</property>
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</bean>
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</beans> 附:定时时间配置说明
Expression |
Meaning |
0 0 12 * * ? |
每天中午12点触发【Fire at 12pm (noon) every day 】 |
0 15 10 ? * * |
每天上午10:15触发【Fire at 10:15am every day 】 |
0 15 10 * * ? |
每天上午10:15触发【Fire at 10:15am every day 】 |
0 15 10 * * ? * |
每天上午10:15触发【Fire at 10:15am every day 】 |
0 15 10 * * ? 2005 |
在2005这一年中每天上午10:15触发【Fire at 10:15am every day during the year 2005 】 |
0 * 14 * * ? |
每天下午14:00到15:00之间,每1分钟触发一次【Fire every minute starting at 2pm and ending at 2:59pm, every day 】 |
0 0/5 14 * * ? |
每天下午14:00到14:55之间,每5分钟触发一次【Fire every 5 minutes starting at 2pm and ending at 2:55pm, every day 】 |
0 0/5 14,18 * * ? |
每天的14:00~14:55和18:00~18:55之间,每5分钟触发一次【Fire every 5 minutes starting at 2pm and ending at 2:55pm, AND fire every 5 minutes starting at 6pm and ending at 6:55pm, every day 】 |
0 0-5 14 * * ? |
每天的14:00~14:05之间,每1分钟触发一次【Fire every minute starting at 2pm and ending at 2:05pm, every day 】 |
0 10,44 14 ? 3 WED |
3月的每周三的14:10和14:44触发【Fire at 2:10pm and at 2:44pm every Wednesday in the month of March. 】 |
0 15 10 ? * MON-FRI |
每周周一到周五的10:15触发【Fire at 10:15am every Monday, Tuesday, Wednesday, Thursday and Friday 】 |
0 15 10 15 * ? |
每月15日的10:15触发【 Fire at 10:15am on the 15th day of every month 】 |
0 15 10 L * ? |
每月最后一天的10:15触发【Fire at 10:15am on the last day of every month 】 |
0 15 10 ? * 6L |
每月的最后一个周五的10:15触发【Fire at 10:15am on the last Friday of every month 】 |
0 15 10 ? * 6L 2002-2005 |
在2002到2005之间,每月的最后一个周五的10:15触发【Fire at 10:15am on every last friday of every month during the years 2002, 2003, 2004 and 2005 】 |
0 15 10 ? * 6#3 |
每月的第三个星期五的10:15触发【Fire at 10:15am on the third Friday of every month 】 |