xmlns:task="http://www.springframework.org/schema/task"  

http://www.springframework.org/schema/task

http://www.springframework.org/schema/task/spring-task-3.1.xsd 

<task:annotation-driven/>  

<context:annotation-config/>

    <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>

    <context:component-scan base-package="com.zyt.test"/>  

import org.springframework.stereotype.Component;  

@Component

public class TestService {  
　　　 // 5秒钟执行一次

      @Scheduled(cron="0/5 * *  * * ? ")   //每5秒执行一次  
　　　 public void test(){

          System.out.println("每隔五秒打印一次");

      }

}