參考

    http://blog.csdn.net/wxwzy738/article/details/25158787

但又有些區別，如下：

1、jar包

2、web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    
    <!-- 配置監聽器載入spring -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	
	
	<!-- 配置過濾器，解決post的亂碼問題 -->
	<filter>
		<filter-name>encoding</filter-name>	
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>encoding</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
    
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  
  <!-- 配置spring -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring/spring-context.xml</param-value><!-- 這裡注意spring-context.xml的路徑-->
	</context-param>

</web-app>

 

3、任務類com.spring.task.Timer

 public class Timer {
	    public void execute(){
		System.out.println("Hello World");
	    }

    }	

4、spring-context.xml檔案( classpath:spring/spring-context.xml ) 

<beans xmlns="http://www.springframework.org/schema/beans"  
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   
    xmlns:p="http://www.springframework.org/schema/p"  
    xmlns:task="http://www.springframework.org/schema/task"  
    xmlns:context="http://www.springframework.org/schema/context"  
    xmlns:aop="http://www.springframework.org/schema/aop"   
    xsi:schemaLocation="http://www.springframework.org/schema/beans   
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd    
    http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd    
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd    
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd    
    http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd">  
  
    <task:annotation-driven /> <!-- 定時器開關-->  
  
    <bean id="myTimer" class="com.spring.task.Timer"></bean>  
  
    <task:scheduled-tasks>  
         
         	<!-- 這裡表示的是每隔2秒執行一次 -->  
          
        <task:scheduled ref="myTimer" method="execute" cron="*/2 * * * * ?" />  
    </task:scheduled-tasks>  
      
    <!-- 自動掃描的包名 -->    
    <context:component-scan base-package="com.spring.task" /><!--注意，這裡是任務類的包路徑 -->  
      

</beans>  
 

啟動web專案（我這裡用的是tomcat7）

console:  (2秒鐘執行一次)

如有錯誤，感謝指正