spring3.0设立定时任务

spring3.0设置定时任务

今天做个小需求，需要用到定时器。?

就把以前写过的配置文件模板直接复制过来，又顺手点进去看了一下源码，发现TimerFactoryBean、ScheduledTimerTask都已经被标记成@Deprecated了?

1. @Deprecated??
2. public?class?TimerFactoryBean?implements?FactoryBean<Timer>,?BeanNameAware,?InitializingBean,?DisposableBean??

1. @Deprecated??
2. public?class?TimerFactoryBean?implements?FactoryBean<Timer>,?BeanNameAware,?InitializingBean,?DisposableBean??

?

1. @Deprecated??
2. public?class?ScheduledTimerTask??

1. @Deprecated??
2. public?class?ScheduledTimerTask??

那肯定就不乐意用了，就上网找了找spring3.0之后的新用法，果然是有变化，而且比以前简单了很多，在这里记录一下?

我记得以前那种做法，业务类是要继承自TimerTask才行的，现在就不用了，是一个pojo就可以?

1. public?class?TestService?{ ??
2. ??
3. ????private?Logger?logger?=?LoggerFactory.getLogger(TestService.class); ??
4. ??
5. ????public?void?sayHello()?{ ??
6. ????????System.out.println("hello?world"); ??
7. ????} ??
8. ??
9. ????public?void?sayBye()?{ ??
10. ????????System.out.println("bye?world"); ??
11. ????} ??
12. ??
13. }??

1. public?class?TestService?{??
2. ??
3. ????private?Logger?logger?=?LoggerFactory.getLogger(TestService.class);??
4. ??
5. ????public?void?sayHello()?{??
6. ????????System.out.println("hello?world");??
7. ????}??
8. ??
9. ????public?void?sayBye()?{??
10. ????????System.out.println("bye?world");??
11. ????}??
12. ??
13. }??

然后配置文件也更简单?

1. <beans?xmlns="http://www.springframework.org/schema/beans"??
2. ????xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"?xmlns:task="http://www.springframework.org/schema/task"??
3. ????xsi:schemaLocation="http://www.springframework.org/schema/beans??? ??
4. ????http://www.springframework.org/schema/beans/spring-beans.xsd ??
5. ????http://www.springframework.org/schema/task??? ??
6. ????http://www.springframework.org/schema/task/spring-task-3.0.xsd">??
7. ??
8. ????<bean?id="testService"?class="com.xxx.spring.business.TestService"?/>??
9. ??
10. ????<task:scheduled-tasks>??
11. ????????<task:scheduled?ref="testService"?method="sayHello"?cron="3/11?*?*?*?*??"?/>??
12. ????????<task:scheduled?ref="testService"?method="sayBye"?cron="7/13?*?*?*?*??"?/>??
13. ????</task:scheduled-tasks>??
14. ??
15. </beans>??

1. <beans?xmlns="http://www.springframework.org/schema/beans"??
2. ????xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"?xmlns:task="http://www.springframework.org/schema/task"??
3. ????xsi:schemaLocation="http://www.springframework.org/schema/beans?????
4. ????http://www.springframework.org/schema/beans/spring-beans.xsd??
5. ????http://www.springframework.org/schema/task?????
6. ????http://www.springframework.org/schema/task/spring-task-3.0.xsd">??
7. ??
8. ????<bean?id="testService"?class="com.xxx.spring.business.TestService"?/>??
9. ??
10. ????<task:scheduled-tasks>??
11. ????????<task:scheduled?ref="testService"?method="sayHello"?cron="3/11?*?*?*?*??"?/>??
12. ????????<task:scheduled?ref="testService"?method="sayBye"?cron="7/13?*?*?*?*??"?/>??
13. ????</task:scheduled-tasks>??
14. ??
15. </beans>??

只要用一个新增的<task:scheduled-tasks>就可以了?

就是有一点要注意一下，新的时间配置，是类似于cron的语法，比以前强大很多。?

不过我只用到了第一个参数：3/11，表示延迟3秒启动，间隔11秒；7/13表示延迟7秒启动，间隔13秒

?