Spring定时任务执行

备注：这个是基于搭建好spring的环境下的

注解方式：

1.定时任务类

package com.test;
import java.util.Date;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component("mytask")
public class MyTask {
    int i =0;
    @Scheduled(cron = "0 0/1 * * * ?")//！！！！！表示每分钟执行一次！！！！！cron是表示触发的时间表达式
    public void doTask(){
        System.out.println("结果是："+(i++)+":"+new Date());
    }
}

2.配置文件：schedule.xml；备注：名称随便起。还有，需要在总的配置文件映入改文件

<?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:context="http://www.springframework.org/schema/context"
       xmlns:task="http://www.springframework.org/schema/task" 
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.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
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"
       xmlns:aop="http://www.springframework.org/schema/aop">
  
    <context:annotation-config />  
    <!-- 扫描定时任务类所在的包 -->
    <context:component-scan base-package="com.test" />  
    
 </beans> 

XML方式：

1.定时任务类：相比注解方式，方法上面没有注解，通过XML方式注入

@Component("mytask")
public class MyTask {
    int i =0;
    public void doTask(){
        System.out.println("结果是："+(i++)+":"+new Date());
    }
}

2.配置文件：schedule.x

<?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:context="http://www.springframework.org/schema/context"
       xmlns:task="http://www.springframework.org/schema/task" 
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.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
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"
       xmlns:aop="http://www.springframework.org/schema/aop">
  
  <!--   <context:annotation-config />  --> 
     <!-- 扫描定时任务类所在的包 -->
     <task:scheduled-tasks>   
        <task:scheduled ref="cancelSysSeatByTask" method="doTask" cron="0 0/1 * * * ?"/>
　　  </task:scheduled-tasks> 

</beans>

3.部署到tomcat并且启动，看看后台是否输出以下信息：

结果是：0:Mon Mar 30 16:23:00 CST 2015
结果是：1:Mon Mar 30 16:24:00 CST 2015
结果是：2:Mon Mar 30 16:25:00 CST 2015