Quartz 1.8.5 with tomcat without Spring

本文详细介绍了如何使用Quartz框架配置并实现定时任务,包括下载安装、配置文件设置、编写任务类、添加任务调度文件等关键步骤,并通过web.xml进行初始化监听,确保定时任务在应用启动时即生效。

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在网上找了些文章来看,都是比较早的东东,有些地方的配置已经改变了,总结了一下,记录在这里。

1、从http://quartz-scheduler.org下载quartz-1.8.5.tar.gz,解压缩到目录quartz-1.8.5中

2、添加quartz-1.8.5.jar及quartz-1.8.5\lib目录中的jar文件到项目的lib目录中

3、在项目中添加对quartz-1.8.5.jar的引用

4、编写MyJob 类

import java.util.Date;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

public class MyJob implements Job{

private static Log log = LogFactory.getLog(StatServer.class);

@Override
public void execute(JobExecutionContext arg0) throws JobExecutionException {
System.out.println("Hello, " + new Date());
}

}

5、添加quartz.properties文件到classes目录中(注意红色的部分)

org.quartz.scheduler.instanceName = TestScheduler
org.quartz.scheduler.instanceId = one

org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.threadCount = 2
org.quartz.threadPool.threadPriority = 4

org.quartz.plugin.triggHistory.class = org.quartz.plugins.history.LoggingTriggerHistoryPlugin
org.quartz.plugin.triggHistory.triggerFiredMessage = Trigger {1}.{0} fired job {6}.{5} at: {4, date, HH:mm:ss MM/dd/yyyy}
org.quartz.plugin.triggHistory.triggerCompleteMessage = Trigger {1}.{0} completed firing job {6}.{5} at {4, date, HH:mm:ss MM/dd/yyyy} with resulting trigger instruction code: {9}

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.plugin.shutdownhook.class = org.quartz.plugins.management.ShutdownHookPlugin
org.quartz.plugin.shutdownhook.cleanShutdown = true

6、添加quartz_job.xml到classes目录中

<?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">
<schedule>
<job>
<name>MyJob1</name>
<group>jobGroup1</group>
<job-class>MyJob</job-class>
</job>
<trigger>
<cron>
<name>Trigger1</name>
<group>triggerGroup1</group>
<job-name>MyJob1</job-name>
<job-group>jobGroup1</job-group>
<cron-expression>0/5 * * * * ?</cron-expression>
</cron>
</trigger>
</schedule>
</job-scheduling-data>

7、在web.xml中添加listener

<context-param>
<param-name>quartz:config-file</param-name>
<param-value>/quartz.properties</param-value>
</context-param>
<context-param>
<param-name>quartz:shutdown-on-unload</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>quartz:start-on-load</param-name>
<param-value>true</param-value>
</context-param>

<listener>
<listener-class>
org.quartz.ee.servlet.QuartzInitializerListener
</listener-class>
</listener>
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