原创整理不易，转载请注明出处：spring框架整合使用定时任务框架java quartz的示例代码配置

代码下载地址：http://www.zuidaima.com/share/1775583461723136.htm

有时候我们的任务(Job)需要再某些任务完成之后才能进行；例如从旧的数据库批量导数据的时候；需要现将被其他数据依赖的数据导入新的数据库；然后再进行关系的导入.。在这种情况下我们就可以使用Quartz的listener来做文章了。

首先我们写一个主任务的类，命名为MainJob；她的作用是作为一系列任务的开始点。
MainJob.java

package com.zuidaima.quartz.jobs;

 import org.apache.log4j.Logger;
 import org.quartz.JobExecutionContext;
 import org.quartz.JobExecutionException;
 import org.springframework.scheduling.quartz.QuartzJobBean;

 public class MainJob extends QuartzJobBean {
 private Logger logger=Logger.getLogger(getClass());
 @Override
 protected void executeInternal(JobExecutionContext arg0)
 throws JobExecutionException {
 // TODO Auto-generated method stub
 logger.debug("Just say hi.");
 }

}

然后我们新建另外一个任务（SecondJob）作为后续任务：
SecondJob.java

package com.zuidaima.quartz.jobs;

 import org.apache.log4j.Logger;
 import org.quartz.JobExecutionContext;
 import org.quartz.JobExecutionException;
 import org.springframework.scheduling.quartz.QuartzJobBean;

 public class SecondJob extends QuartzJobBean {
 private Logger logger=Logger.getLogger(getClass());
 @Override
 protected void executeInternal(JobExecutionContext arg0)
 throws JobExecutionException {
 // TODO Auto-generated method stub
 logger.debug("I‘m the second job.");
 }

}

创建一个TriggerListener,重写其triggerComplete方法，并且添加一些方便spring注入的属性和方法。
NextJobTriggerListener.java

package com.zuidaima.listeners;

 import org.apache.log4j.Logger;
 import org.quartz.JobDetail;
 import org.quartz.JobExecutionContext;
 import org.quartz.Scheduler;
 import org.quartz.Trigger;
 import org.quartz.listeners.TriggerListenerSupport;
 import org.springframework.scheduling.quartz.QuartzJobBean;
 import org.springframework.scheduling.quartz.SimpleTriggerBean;

 public class NextJobTriggerListener extends TriggerListenerSupport {
 private Logger logger=Logger.getLogger(getClass());
 private String name;
 public String getName() {
 return this.name;
 }
 public void setName(String name)
 {
 this.name=name;
 }
 private SimpleTriggerBean nextTrigger;
 public void setNextTrigger(SimpleTriggerBean nextTrigger) {
 this.nextTrigger=nextTrigger;
 }
 @Override
 public void triggerComplete(Trigger trigger, JobExecutionContext context, int code) {
 try{
 Scheduler schduler=context.getScheduler();
 JobDetail nextJob=nextTrigger.getJobDetail();
 //查找名称和即将加入的任务一样的任务
 JobDetail oldJob=schduler.getJobDetail(nextJob.getName(),nextJob.getGroup());
 //查找名称和即将加入的触发器一样的触发器
 Trigger oldTrigger=schduler.getTrigger(nextTrigger.getName(),nextTrigger.getGroup());
 
 if(oldJob==null&&oldTrigger==null)//同名的任务和触发器都不存在
 {
 logger.debug("inside scheduleJob."+code);
 schduler.scheduleJob(nextJob,nextTrigger);
 }else//同名的任务或触发器
 {
 
 logger.debug("oldJob==null:"+(oldJob==null));
 logger.debug("oldTrigger==null:"+(oldTrigger==null)); 
 }
 super.triggerComplete(trigger, context, code);
 }catch(Exception e)
 {
 e.printStackTrace();
 }
 }
 

}

配置spring 的applicationContext.xml
applicationContext.xml

<?xml version="1.0"encoding="UTF-8"?> 
 <beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:jee="http://www.springframework.org/schema/jee"
 xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-2.0.xsd
 http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.0.xsd"> 
 <!-- 主任务 --> 
 <bean id="mainJob"
 class="org.springframework.scheduling.quartz.JobDetailBean">
 <!-- 运行的类 --> 
 <property name="jobClass">
 <value> jobs.MainJob </value> 
 </property> 
 </bean> 
 
 <!-- 主任务的监听器 --> 
 <bean id="mainTriggerListener"
 class="listeners.NextJobTriggerListener">
 <!-- 下个触发器 --> 
 <property name="nextTrigger" ref="secondTrigger"></property>
 <!-- 监听器名称 --> 
 <property name="name" value=http://www.mamicode.com/"mainTriggerListener">>
开启服务器，输出
DEBUG [ MainJob.executeInternal(14) ] Just say hi.
DEBUG [ NextJobTriggerListener.triggerComplete(38) ] inside scheduleJob .3 
DEBUG [SecondJob.executeInternal(14)] I‘m the second job.
DEBUG [ NextJobTriggerListener.triggerComplete(43) ] oldJob==null:false
DEBUG [ NextJobTriggerListener.triggerComplete(44) ] oldTrigger== null:false

另外这里一个任务只绑定了一个简单的触发器，这样做是为了比较方便地可以检测到任务完成的情况；至于任务的具体内容就任由大家发挥了。写这篇文章希望能有人在其中获得启发。

Let life be beautiful like summer flowers and death like autumn leaves.