分享Spring Scheduled定时器的用法

 1 /*
 2  *文件名：ITimeFlickerHandler.java
 3  *版权：王安琪
 4  *描述：时钟消息处理接口
 5  *修改时间：2014-01-13
 6  *修改内容：新增
 7  */
 8 
 9 public interface ITimeFlickerHandler {
10 
11     void handle();
12 }

 1 /*
 2  *文件名：TimeFlicker.java
 3  *版权：王安琪
 4  *描述：时钟触发源
 5  *修改时间：2014-01-13
 6  *修改内容：新增
 7  */
 8 
 9 import java.util.ArrayList;
10 import java.util.List;
11 
12 import org.slf4j.Logger;
13 import org.slf4j.LoggerFactory;
14 import org.springframework.scheduling.annotation.Scheduled;
15 
16 /**
17  * 时钟触发源
18  * 
19  * @author wanganqi
20  * 
21  */
22 public class TimeFlicker {
23 
24     private static final Logger logger = LoggerFactory
25             .getLogger(LocatingSourceFilter.class);
26 
27     private List<ITimeFlickerHandler> handlers = new ArrayList<ITimeFlickerHandler>();
28 
29     /**
30      * 通过配置文件获取要调用的时钟消息处理类
31      * 
32      * @return
33      */
34     public List<ITimeFlickerHandler> getHandlers() {
35         return handlers;
36     }
37 
38     public void setHandlers(List<ITimeFlickerHandler> handlers) {
39         this.handlers = handlers;
40     }
41 
42     // 每一个小时30分00秒执行处理
43     @Scheduled(cron = "0 30 * * * ?")
44     public void run() {
45         for (ITimeFlickerHandler handler : handlers) {
46             handler.handle();
47         }
48     }
49 }

 1 /*
 2  *文件名：Monitor.java
 3  *版权：王安琪
 4  *描述：监控处理
 5  *修改时间：2013-12-10
 6  *修改内容：新增
 7  */
 8 
 9 import org.slf4j.Logger;
10 import org.slf4j.LoggerFactory;
11 
12 public class Monitor implements ITimeFlickerHandler {
13 
14     private static final Logger logger = LoggerFactory
15             .getLogger(LocatingSourceFilter.class);
16 
17     /**
18      * 定时时间到，更新所有电子围栏缓存
19      * 
20      * @see ITimeFlickerHandler#handle()
21      */
22     @Override
23     public void handle() {
24         EF[] res = null;
25         try {
26             res = service.GetEF();
27         } catch (Exception e) {
28             logger.error("This is error message");
29         }
30         EFB.setBuffer(res);
31     }
32 }

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4     xmlns:task="http://www.springframework.org/schema/task"
 5     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
 6         http://www.springframework.org/schema/task  http://www.springframework.org/schema/task/spring-task-3.1.xsd  ">
 7 
 8     <!-- 处理器相关 -->
 9     <task:annotation-driven />
10     <bean id="Monitor"
11         class="com.imp.Monitor" />
12     <bean id="TimeFlicker" class="com.imp.TimeFlicker">
13         <property name="handlers">
14             <list>
15                 <ref bean="Monitor" />
16             </list>
17         </property>
18     </bean>
19 </beans>

 1 import org.springframework.context.support.AbstractApplicationContext;
 2 import org.springframework.context.support.FileSystemXmlApplicationContext;
 3 
 4 public class AppContext {
 5 
 6     private static AbstractApplicationContext dispatchContext;
 7 
 8     /**
 9      * 以单例模式获取上下文
10      * 
11      * @return 上下文
12      */
13     public static AbstractApplicationContext getDispatchContext() {
14         if (dispatchContext == null)
15             dispatchContext = new FileSystemXmlApplicationContext(
16                     "classpath:bean.xml");
17         return dispatchContext;
18     }
19 }