tomcat下集成quartz任务调度

quartz任务可以随tomcat启动而启动调度，不需要手动启动调度进程。

1.修改web.xml       

<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>

2.在webapps/axis/WEB-INF/classes目录下建立文件quartz.properties

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.JobInitializationPlugin
org.quartz.plugin.jobInitializer.fileName = quartz_job.xml
org.quartz.plugin.jobInitializer.overWriteExistingJobs = false
org.quartz.plugin.jobInitializer.failOnFileNotFound = true
org.quartz.plugin.shutdownhook.class = org.quartz.plugins.management.ShutdownHookPlugin
org.quartz.plugin.shutdownhook.cleanShutdown = true

3.在同目录建立文件 quartz_job.xml

< ?xml version="1.0" encoding="UTF-8"?>
< quartz>  
< job>
       <job-detail>
         <name>helloworld</name>
         <group>group1</group>
         <job-class>HelloWorld</job-class>
       </job-detail>
       <trigger>
         <cron>
           <name>test</name>
           <group>group1</group>
           <job-name>helloworld</job-name>
           <job-group>group1</job-group>
           <cron-expression>0 0/1 * * * ?</cron-expression>
        </cron>
       </trigger>
< /job>
< /quartz>
4.在同目录下增加java文件并编译：
   

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{ 

       public Helloworld() { } 

       private static Log _log = LogFactory.getLog(Helloworld.class);   

      //调度方法

       public void execute(JobExecutionContext context)  throws JobExecutionException {  

               _log.info("Hello World! - " + new Date()); 

       } 

}