Spring-task 使用注解(@Scheduled)创建计划任务

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Spring3中加强了注解的使用,其中计划任务也得到了增强,现在创建一个计划任务只需要两步就完成了:
创建一个Java类,添加一个无参无返回值的方法,在方法上用@Scheduled注解修饰一下;
在Spring配置文件中添加三个

/**  * com.zywang.spring.task.SpringTaskDemo.java  * @author ZYWANG 2011-3-9  */  package com.zywang.spring.task;  import org.springframework.scheduling.annotation.Scheduled;  import org.springframework.stereotype.Component;  /**  * Spring3 @Scheduled 演示  * @author ZYWANG 2011-3-9  */  @Component  public class SpringTaskDemo {      @Scheduled(fixedDelay = 5000)      void doSomethingWithDelay(){          System.out.println("I'm doing with delay now!");      }      @Scheduled(fixedRate = 5000)      void doSomethingWithRate(){          System.out.println("I'm doing with rate now!");      }      @Scheduled(cron = "0/5 * * * * *")      void doSomethingWith(){          System.out.println("I'm doing with cron now!");      }  }  

Spring配置文件:
Xml代码

<?xml version="1.0" encoding="UTF-8"?>  <beans xmlns="http://www.springframework.org/schema/beans"      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:task="http://www.springframework.org/schema/task"      xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd          http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd">      <!-- Enables the Spring Task @Scheduled programming model -->      <task:executor id="executor" pool-size="5" />      <task:scheduler id="scheduler" pool-size="10" />      <task:annotation-driven executor="executor" scheduler="scheduler" />  </beans>  
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