Jfinal中定时器的初步探索（二）

第一篇中增加的是程序代码的实现，本篇我们将通过配置文件进行定时器的配置，减少代码量，提高灵活性。

1、需要用到的文件：quartz.properties，据说这个文件如果没有的话，按默认的走，结果布署到tomcat中，提示找不到该文件；

#============================================================================

# Configure Main Scheduler Properties  

#============================================================================

org.quartz.scheduler.instanceName = QuartzScheduler

org.quartz.scheduler.instanceId = AUTO

#============================================================================

# Configure ThreadPool  

#============================================================================

org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool

org.quartz.threadPool.threadCount =2

org.quartz.threadPool.threadPriority = 5

#============================================================================

# Configure JobStore  

#============================================================================

org.quartz.jobStore.misfireThreshold = 60000

org.quartz.jobStore.class = org.quartz.simpl.RAMJobStore

#============================================================================

# Configure Plugins 

#============================================================================

org.quartz.plugin.triggHistory.class = org.quartz.plugins.history.LoggingJobHistoryPlugin

org.quartz.plugin.jobInitializer.class = org.quartz.plugins.xml.JobInitializationPlugin

org.quartz.plugin.jobInitializer.fileNames = jobs.xml

org.quartz.plugin.jobInitializer.overWriteExistingJobs = true

org.quartz.plugin.jobInitializer.failOnFileNotFound = true

org.quartz.plugin.jobInitializer.scanInterval = 10

org.quartz.plugin.jobInitializer.wrapInUserTransaction = false

　2、jobs.xml ,上文提到的配置文件，配置触发器和job名称等；

<?xml version=‘1.0‘ encoding=‘utf-8‘?>
<quartz xmlns="http://www.opensymphony.com/quartz/JobSchedulingData"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.opensymphony.com/quartz/JobSchedulingData
  http://www.opensymphony.com/quartz/xml/job_scheduling_data_1_5.xsd"
  version="1.5">
 <job>
    <job-detail>
     <name>HelloWorld</name>
     <group>DEFAULT</group>
     <description>
           A job that just for test
     </description>
     <job-class>
            cn.jfinal.job.RedPacketValidate
     </job-class>
     <volatility>false</volatility>
     <durability>false</durability>
     <recover>false</recover>
  </job-detail>
  <trigger>
    <simple>
     <name>HelloTrigger1</name>
     <group>DEFAULT</group>
     <job-name>RedPacketValidate</job-name>
     <job-group>DEFAULT</job-group>
     <start-time>2015-10-26T16:56:30</start-time>
     <!-- repeat indefinitely every 10 seconds -->
     <repeat-count>-1</repeat-count>
     <repeat-interval>10000</repeat-interval>
    </simple>
  </trigger>
</job>
</quartz>

上面这两个文件要放在apache-tomcat-7.0.59\webapps\jfinal_demo\WEB-INF\classes 中，才能有效。

3、一些必须的jar包要添加到lib中：

创建一个Web项目，将quartz-1.6.0.jar,以及lib目录下面core下所有jar，optional目录下的所有commons-beanutils.jar和commons-digester-1.7.jar，build目录下的jta.jar都放入Web项目的WEB-INF"lib目录下。

jta.jar说明：java JTA规范；

4、web.xml 配置

 <servlet>
        <servlet-name>QuartzInitializer</servlet-name>
        <display-name>Quartz Initializer Servlet</display-name>
        <servlet-class>
             org.quartz.ee.servlet.QuartzInitializerServlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
        <init-param>
            <param-name>config-file</param-name>
            <param-value>/quartz.properties</param-value>
        </init-param>
        <init-param>
            <param-name>shutdown-on-unload</param-name>
            <param-value>true</param-value>
       </init-param>
    </servlet>  

总体参考：http://www.cnblogs.com/phinecos/archive/2008/09/03/1283103.html