Spring定时器

1、定义一个类继承org.springframework.scheduling.quartz.QuartzJobBean; 

Java代码  

1. import java.util.ArrayList;  
2. import java.util.HashMap;  
3. import java.util.Iterator;  
4. import java.util.List;  
5. import java.util.Map;  
6.   
7. import org.apache.commons.logging.Log;  
8.   
9. import org.apache.commons.logging.LogFactory;  
10. import org.quartz.JobExecutionContext;  
11. import org.quartz.JobExecutionException;  
12. import org.springframework.jdbc.core.JdbcTemplate;  
13. import org.springframework.scheduling.quartz.QuartzJobBean;  
14.   
15. import com.zdvictory.approve.business.dao.AppBusiBasicDAO;  
16.   
17. public class UpdateWorkflowJob extends QuartzJobBean{  
18.     private JdbcTemplate jdbcTemplate ;  
19.     private AppBusiBasicDAO appBusiBasicDAO ;  
20.       
21.         private Log log = LogFactory.getLog(UpdateWorkflowJob.class);  
22.     @Override  
23.     protected void executeInternal(JobExecutionContext arg0)throws JobExecutionException {  
24.         System.out.println("执行过程");  
25.     }  
26.       
27.     public AppBusiBasicDAO getAppBusiBasicDAO() {  
28.         return appBusiBasicDAO;  
29.     }  
30.   
31.     public void setAppBusiBasicDAO(AppBusiBasicDAO appBusiBasicDAO) {  
32.         this.appBusiBasicDAO = appBusiBasicDAO;  
33.     }  
34.   
35.     public JdbcTemplate getJdbcTemplate() {  
36.         return jdbcTemplate;  
37.     }  
38.   
39.     public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {  
40.         this.jdbcTemplate = jdbcTemplate;  
41.     }  
42. }  

2、定义配置文件 

Java代码  

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">  
3. <beans>     
4.     <bean id="updateWorkflowJob"  
5.         class="org.springframework.scheduling.quartz.JobDetailBean">  
6.         <property name="jobClass">  
7.             <value>  
8.                 com.zdvictory.workflow.timer.UpdateWorkflowJob  
9.             </value>  
10.         </property>  
11.         <property name="jobDataAsMap">  
12.             <map>  
13.                 <entry key="jdbcTemplate">  
14.                     <ref bean="jdbcTemplate_sjjh"/>  
15.                 </entry>  
16.                 <entry key="appBusiBasicDAO">  
17.                     <ref bean="appBusiBasicDAO"/>  
18.                 </entry>  
19.             </map>  
20.         </property>  
21.     </bean>  
22.       
23.     <bean id="updateWorkflowJobTrigger"  
24.         class="org.springframework.scheduling.quartz.CronTriggerBean">  
25.         <property name="jobDetail">  
26.             <ref bean="updateWorkflowJob" />  
27.         </property>  
28.         <property name="cronExpression">  
29.         <!-- 每分钟执行一次 -->  
30.             <value>0 0/1 8-23 * * ?</value> 8-23：早上8点至晚上23点正常执行  
31.         </property>  
32.     </bean>  
33.     <!-- 启动定时器 -->  
34.     <bean id="start" lazy-init="false"  
35.         class="org.springframework.scheduling.quartz.SchedulerFactoryBean">  
36.         <property name="triggers">  
37.             <list>  
38.                 <ref bean="updateWorkflowJobTrigger" />  
39.             </list>  
40.         </property>  
41.     </bean>  
42. </beans>  
43.  

*************************************************************************************************************************************************************
1，注意jar包，特别是commons-collections.jar这个包的版本要3.x以上的。 
2，注意编译jdk和运行jdk的版本问题要不然会报： java.lang.UnsupportedClassVersionError: Bad version number in .class file ... 错误 

配置一个服务时钟的类源码： 
1，ClockService.java:处理时钟业务 

Java代码  

1. public class ClockService {  
2.       
3.     public void doService(){  
4.           
5.         System.out.println("do Service!");  
6.           
7.     }  
8. }  

2，ClockTime.java：时钟类（QuartzJobBean所属quartz-all-1.6.0.jar版本不一，这里是我用的版本） 

Java代码  

1. public class ClockTime extends QuartzJobBean{  
2.   
3.     protected void executeInternal(JobExecutionContext arg0)  
4.             throws JobExecutionException {  
5.         System.out.println("============== Time Clock Start =============");  
6.         ClockService service = new ClockService();  
7.         service.doService();  
8.         System.out.println("============== Time Clock End =============");  
9.     }  
10.       
11. }  

3，applicationContext-clock.xml配置时钟 

Xml代码  

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.     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">  
5.               
6.     <!-- 时钟  -->  
7.     <bean id="quartzClock"  
8.         class="org.springframework.scheduling.quartz.JobDetailBean">  
9.         <property name="jobClass">  
10.             <value>com.fairy.spring.clock.ClockTime</value>  
11.         </property>  
12.         <property name="jobDataAsMap">  
13.             <map>  
14.                 <!--   spring 的依赖注入  -->  
15.                 <!-- <entry key="service"><ref local="handleOverTimeClockServiceImpl"/></entry>  -->  
16.             </map>  
17.         </property>  
18.     </bean>  
19.     <bean id="quartzClockTask"  
20.         class="org.springframework.scheduling.quartz.SimpleTriggerBean">  
21.         <property name="jobDetail">  
22.             <ref bean="quartzClock" />  
23.         </property>  
24.         <property name="startDelay">  
25.             <value>6000</value>  
26.             <!--    这里是服务启动后延时多少时间,开始计时任务,单位ms-->  
27.         </property>  
28.         <property name="repeatInterval">  
29.             <value>30000</value>  
30.             <!--   这里是每隔多长时间就进行一次计时任务,单位ms -->  
31.         </property>  
32.     </bean>  
33.     <bean id="cronQuartzClock"  
34.         class="org.springframework.scheduling.quartz.CronTriggerBean">  
35.         <property name="jobDetail">  
36.             <ref bean="quartzClock"></ref>  
37.         </property>  
38.         <property name="cronExpression">  
39.             <!-- <value>0 38 13 * * ?</value> -->  
40.              <value>0,5,10,15,20,25,30,35,40,45,50,55 * * * * ?</value>  
41.             <!-- 
42.             <value>0 0,10,20,30,40,50,59 * * * ?</value> 
43.              -->  
44.             <!--定时在任何月份任何日期(不管星期几)的22点52分0秒 -->  
45.             <!-- 一个cron表达式有到少6个(也可能是7个)由空格分隔的时间元素.从左到右,这些元素的定义如下:  
46.                 1.秒(0-59)  
47.                 2.分钟(0-59)  
48.                 3.小时(0-23)  
49.                 4.月份中的是期(1-31)  
50.                 5.月份(1-12或SUN-DEC)  
51.                 6.星期中的日期(1-7或SUN-SAT)  
52.                 7.年份(1970-2099)   
53.                 例子:  
54.                 0 0 10,14,16 * * ? 每天上午10点,下午2点和下午4点  
55.                 0 0,15,30,45 * 1-10 * ? 每月前10天每隔15分钟  
56.                 30 0 0 1 1 ? 2012 在2012年1月1日午夜过30秒时  
57.                 0 0 8-5 ? * MON-FRI 每个工作日的工作时间  
58.                   
59.                 - 区间  
60.                 * 通配符  
61.                 ? 你不想设置那个字段  
62.             -->  
63.         </property>  
64.   
65.     </bean>  
66.     <bean  
67.         class="org.springframework.scheduling.quartz.SchedulerFactoryBean">  
68.         <property name="triggers">  
69.             <list>  
70.                 <ref bean="cronQuartzClock"></ref>  
71.             </list>  
72.         </property>  
73.     </bean>  
74.     <!-- end 时钟  -->  
75. </beans>  

4,web.xml配置spring 

Xml代码  

1. <context-param>  
2.         <param-name>contextConfigLocation</param-name>  
3.         <param-value>classpath:applicationContext-*.xml</param-value>  
4.     </context-param>  
5.       
6.     <listener>  
7.         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
8.     </listener>