http://www.mkyong.com/spring/spring-jdk-timer-scheduler-example/
In this example, you will use Spring’s Scheduler API to schedule a task.
1. Scheduler Task
Create a scheduler task…
package com.mkyong.common;
public class RunMeTask
{
public void printMe() {
System.out.println("Run Me ~");
}
}
<bean id="runMeTask" class="com.mkyong.common.RunMeTask" />
Spring comes with a MethodInvokingTimerTaskFactoryBean as a replacement for the JDK TimerTask. You can define your target scheduler object and method to call here.
<bean id="schedulerTask"
class="org.springframework.scheduling.timer.MethodInvokingTimerTaskFactoryBean">
<property name="targetObject" ref="runMeTask" />
<property name="targetMethod" value="printMe" />
</bean>
Spring comes with a ScheduledTimerTask as a replacement for the JDK Timer. You can pass your scheduler name, delay and period here.
<bean id="timerTask"
class="org.springframework.scheduling.timer.ScheduledTimerTask">
<property name="timerTask" ref="schedulerTask" />
<property name="delay" value="1000" />
<property name="period" value="60000" />
</bean>
2. TimerFactoryBean
In last, you can configure a TimerFactoryBean bean to start your scheduler task.
<bean class="org.springframework.scheduling.timer.TimerFactoryBean">
<property name="scheduledTimerTasks">
<list>
<ref local="timerTask" />
</list>
</property>
</bean>
File : Spring-Scheduler.xml
<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-2.5.xsd">
<bean id="schedulerTask"
class="org.springframework.scheduling.timer.MethodInvokingTimerTaskFactoryBean">
<property name="targetObject" ref="runMeTask" />
<property name="targetMethod" value="printMe" />
</bean>
<bean id="runMeTask" class="com.mkyong.common.RunMeTask" />
<bean id="timerTask"
class="org.springframework.scheduling.timer.ScheduledTimerTask">
<property name="timerTask" ref="schedulerTask" />
<property name="delay" value="1000" />
<property name="period" value="60000" />
</bean>
<bean class="org.springframework.scheduling.timer.TimerFactoryBean">
<property name="scheduledTimerTasks">
<list>
<ref local="timerTask" />
</list>
</property>
</bean>
</beans>
Run it
package com.mkyong.common;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class App
{
public static void main( String[] args )
{
ApplicationContext context =
new ClassPathXmlApplicationContext("Spring-Scheduler.xml");
}
}
No code need to call the scheduler task, the TimerFactoryBean will run your schedule task during start up. As result, Spring scheduler will run the printMe() method every 60 seconds, with a 1 second delay for the first time of execution.