Jfinal中定时器的初步探索（二）

时间：2023-03-09 07:36:11
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

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