在本文中，我们使用Spring3+Quartz实现定时任务。spring中定义了一些接口来支持Quartz，可以使你的业务逻辑类和Quartz解耦。
这个例子中使用了如下maven的依赖项：
<dependencies>
<!-- Spring 3 dependencies -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.1.2.RELEASE</version>
</dependency>
<!-- QuartzJobBean in spring-context-support.jar -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>3.1.2.RELEASE</version>
</dependency>
<!-- Spring + Quartz need transaction -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>3.1.2.RELEASE</version>
</dependency>
<!-- Quartz framework -->
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>1.8.6</version>
</dependency></dependencies>添加依赖之后需要创建一个java类，该类完成要执行的定时任务。
File : RunMeTask.java
package com.mkyong.common;public class RunMeTask {
public void printMe() {
System.out.println("Spring 3 + Quartz 1.8.6 ~");
}}有了要执行的任务，我们需要声明Quartz Scheduler job。
使用spring有两种方法来声明Quartz的job
方法一是使用MethodInvokingJobDetailFactoryBean类
<bean id="runMeJob"
class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
<property name="targetObject" ref="runMeTask" />
<property name="targetMethod" value="printMe" /></bean>方法二是从org.springframework.scheduling.quartz.QuartzJobBean类继承，如下RumMeJob类实现
File : RunMeJob.java
package com.mkyong.common;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;import org.springframework.scheduling.quartz.QuartzJobBean;public class RunMeJob extends QuartzJobBean {
private RunMeTask runMeTask;
public void setRunMeTask(RunMeTask runMeTask) {
this.runMeTask = runMeTask;
}
protected void executeInternal(JobExecutionContext context)
throws JobExecutionException {
runMeTask.printMe();
}}Configure the target class via jobClass and method to run via jobDataAsMap.
<bean name="runMeJob" class="org.springframework.scheduling.quartz.JobDetailBean">
<property name="jobClass" value="com.mkyong.common.RunMeJob" />
<property name="jobDataAsMap">
<map>
<entry key="runMeTask" value-ref="runMeTask" />
</map>
</property></bean>配置Quartz触发器来定义执行调度任务的时机。支持两种类型的触发器。
一种是SimpleTrigger，你可以指定任务的开始时间，结束时间以及重复的间隔。
<!-- Simple Trigger, run every 5 seconds -->
<bean id="simpleTrigger"
class="org.springframework.scheduling.quartz.SimpleTriggerBean">
<property name="jobDetail" ref="runMeJob" />
<property name="repeatInterval" value="5000" />
<property name="startDelay" value="1000" />
</bean>另一种是CronTrigger，这种方式类似于linux的crontab的语法
<bean id="cronTrigger"
class="org.springframework.scheduling.quartz.CronTriggerBean">
<property name="jobDetail" ref="runMeJob" />
<property name="cronExpression" value="0/5 * * * * ?" />
</bean>linux的crontab表达式是非常强大的，你可以参考下面两篇文章 http://en.wikipedia.org/wiki/CRON_expression http://www.quartz-scheduler.org/docs/examples/Example3.html
最后一步需要创建SchedulerFactoryBean来定义执行的任务，和任务的触发时机。
<bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="jobDetails">
<list>
<ref bean="runMeJob" />
</list>
</property>
<property name="triggers">
<list>
<ref bean="simpleTrigger" />
</list>
</property>
</bean>完整的Spring配置文件如下
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean id="runMeTask" class="com.mkyong.common.RunMeTask" />
<!-- Spring Quartz -->
<bean name="runMeJob" class="org.springframework.scheduling.quartz.JobDetailBean">
<property name="jobClass" value="com.mkyong.common.RunMeJob" />
<property name="jobDataAsMap">
<map>
<entry key="runMeTask" value-ref="runMeTask" />
</map>
</property>
</bean>
<!--
<bean id="runMeJob"
class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
<property name="targetObject" ref="runMeTask" />
<property name="targetMethod" value="printMe" />
</bean>
-->
<!-- Simple Trigger, run every 5 seconds -->
<bean id="simpleTrigger"
class="org.springframework.scheduling.quartz.SimpleTriggerBean">
<property name="jobDetail" ref="runMeJob" />
<property name="repeatInterval" value="5000" />
<property name="startDelay" value="1000" />
</bean>
<!-- Cron Trigger, run every 5 seconds -->
<bean id="cronTrigger"
class="org.springframework.scheduling.quartz.CronTriggerBean">
<property name="jobDetail" ref="runMeJob" />
<property name="cronExpression" value="0/5 * * * * ?" />
</bean>
<bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="jobDetails">
<list>
<ref bean="runMeJob" />
</list>
</property>
<property name="triggers">
<list>
<ref bean="simpleTrigger" />
</list>
</property>
</bean></beans>你可以通过下面的类来运行示例：
package com.mkyong.common;import org.springframework.context.support.ClassPathXmlApplicationContext;public class App {
public static void main( String[] args ) throws Exception
{
new ClassPathXmlApplicationContext("Spring-Quartz.xml");
}}控制台输出内容类似：
Jul 25, 2012 3:23:09 PM org.springframework.scheduling.quartz.SchedulerFactoryBean startScheduler
INFO: Starting Quartz Scheduler nowSpring 3 + Quartz 1.8.6 ~ //run every 5 secondsSpring 3 + Quartz 1.8.6 ~来源：oschina
链接：https://my.oschina.net/u/778987/blog/192090