Spring Task定时任务的配置和使用详解

<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-4.0.xsd   http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd    http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd    http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd">   <task:annotation-driven /> <!-- 定时器开关-->   <bean id="myTask" class="com.spring.task.MyTask"></bean>   <task:scheduled-tasks>     <!-- 这里表示的是每隔五秒执行一次 -->     <task:scheduled ref="myTask" method="show" cron="*/5 * * * * ?" />     <task:scheduled ref="myTask" method="print" cron="*/10 * * * * ?"/>   </task:scheduled-tasks>   <!-- 自动扫描的包名 -->  <context:component-scan base-package="com.spring.task" /> </beans>