WEB中使用quartz框架来实现任务的自动处理

1、下载quartz的相应版本（本机是quartz-1.6.5)，解压后将quartz-1.6.5.jar以及lib中各个子目录中的jar包加入到工程的lib中，其中有些jar不是必须的，取决于你要使用的功能。

2、编写quartz.properties 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 = 5
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

3、编写jobs.xml文件.

<?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>
				com.stone.quartz.HelloWorld  
    		</job-class>
    		<!-- 易变，活泼 -->
			<volatility>false</volatility>
			<!-- 耐久性 -->
			<durability>false</durability>
			<!-- 恢复性 -->
			<recover>false</recover>
		</job-detail>
		<trigger>
			<simple>
				<name>HelloTrigger1</name>
				<group>DEFAULT</group>
				<job-name>HelloWorld</job-name>
				<job-group>DEFAULT</job-group>
				<start-time>2011-08-30T07:22:36</start-time>
				<!--重复次数 -->
				<repeat-count>-1</repeat-count>
				<!-- 重复时间间隔 -->
				<repeat-interval>10000</repeat-interval>
			</simple>
		</trigger>
	</job>
</quartz>

4、注意以上两个文件的位置，应该位于工程的src目录下，如果是发布好的工程对应在/WEB-INFO/classes下面。

5、修改web.xml增加servlet。

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> 	<servlet>
		<servlet-name>QuartzInitializer</servlet-name>
		<servlet-class>org.quartz.ee.servlet.QuartzInitializerServlet</servlet-class>
		<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>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
</web-app>

5、编写job类。

package com.stone.quartz;

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 HelloWorld implements Job {
	private static Log logger = LogFactory.getLog(HelloWorld.class);// 日志记录器

	public void execute(JobExecutionContext context)
			throws JobExecutionException {
		logger.info("Hello World! - " + new Date());
	}
}

4、发布并访问工程，看看控制台是不是有正确的打印你的内容呢！