quartz使用

1、把quartz-*.jar 包放到lib目录下，他还需要 slf4j-api-*.jar 、 jta-*.jar

2、在web.xml文件中增加：

  <!-- quartz begin -->

<context-param>

<param-name>config-file</param-name>

<param-value>/quartz.properties</param-value>

</context-param>

<context-param>

<param-name>shutdown-on-unload</param-name>

<param-value>true</param-value>

</context-param>

<listener>

<listener-class>

org.quartz.ee.servlet.QuartzInitializerListener

</listener-class>

</listener>

  <!-- quartz end -->

 3、在src目录下建立 quartz.properties

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

# Configure Main Scheduler Properties  

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

org.quartz.scheduler.instanceName = DataSysScheduler

org.quartz.scheduler.instanceId = AUTO

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

# Configure ThreadPool  

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

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

org.quartz.threadPool.threadCount = 10

org.quartz.threadPool.threadPriority = 5

org.quartz.jobStore.misfireThreshold = 60000

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

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

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

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

org.quartz.plugin.jobInitializer.failOnFileNotFound = true

org.quartz.scheduler.skipUpdateCheck = true 

4、在src目录下建立quartz_job.xml

<?xml version="1.0" encoding="UTF-8"?>  

<job-scheduling-data xmlns="http://www.quartz-scheduler.org/xml/JobSchedulingData"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xsi:schemaLocation="http://www.quartz-scheduler.org/xml/JobSchedulingData http://www.quartz-scheduler.org/xml/job_scheduling_data_1_8.xsd"

    version="1.8">

    

<pre-processing-commands>

<delete-jobs-in-group>*</delete-jobs-in-group>  <!-- clear all jobs in scheduler -->

<delete-triggers-in-group>*</delete-triggers-in-group> <!-- clear all triggers in scheduler -->

</pre-processing-commands>

<processing-directives>

<!-- if there are any jobs/trigger in scheduler of same name (as in this file), overwrite them -->

<overwrite-existing-data>true</overwrite-existing-data>

<!-- if there are any jobs/trigger in scheduler of same name (as in this file), and over-write is false, ignore them rather then generating an error -->

<ignore-duplicates>false</ignore-duplicates> 

</processing-directives>

<schedule>

<job>

       <name>ParseDataJob</name>

            <group>DataSys</group>

            <description>数据解析job</description>

       <job-class>esmart.datasys.quartzjob.ParseDataJob</job-class>

       <volatility>false</volatility>

            <durability>true</durability>

            <recover>false</recover>

   </job>

   <trigger>

       <cron>

           <name>ParseDataTrigger</name>

           <group>DataSys</group>

           <job-name>ParseDataJob</job-name>

           <job-group>DataSys</job-group>

                <misfire-instruction>MISFIRE_INSTRUCTION_FIRE_ONCE_NOW</misfire-instruction>

           <cron-expression>0/20 * * * * ?</cron-expression>

       </cron>

   </trigger>

</schedule>

</job-scheduling-data>

其中的 <job-class> 是自己定义的实现org.quartz.Job接口，有一个空的构造函数的类，