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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="mainTriggerListener"></property> </bean> <!-- 主任务的触发器 --> <bean id="mainTrigger" class="org.springframework.scheduling.quartz.SimpleTriggerBean"> <property name="jobDetail"> <!-- 上面创建的任务调度对象 --> <ref bean="mainJob" /> </property> <!-- 启动60秒后执行任务调度的excute方法 --> <property name="startDelay"> <value> 6000 </value> </property> <!-- 运行次数 --> <property name="repeatCount"> <value> </value> </property> <!-- 隔一个小时运行一次(貌似多余,不写会报错) --> <property name="repeatInterval"> <value> 3600000 </value> </property> <property name="triggerListenerNames"> <list> <value> mainTriggerListener </value> </list> </property> </bean> <!-- 后续任务 --> <bean id="secondJob" class="org.springframework.scheduling.quartz.JobDetailBean"> <!-- 运行的类 --> <property name="jobClass"> <value> jobs.SecondJob </value> </property> </bean> <!-- 后续任务的触发器 --> <bean id="secondTrigger" class="org.springframework.scheduling.quartz.SimpleTriggerBean"> <property name="jobDetail"> <!-- 上面创建的任务调度对象 --> <ref bean="secondJob" /> </property> <!-- 启动6秒后执行任务调度的excute方法 --> <property name="startDelay"> <value> 6000 </value> </property> <!-- 运行次数 --> <property name="repeatCount"> <value> </value> </property> <!-- 隔一个小时运行一次(貌似多余,不写会报错) --> <property name="repeatInterval"> <!-- <value>3600000</value> --> <value> 6000 </value> </property> </bean> <!-- 任务调度工厂类 --> <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> <!-- 这一部分的配置不用管 --> <property name="quartzProperties"> <props> <prop key="org.quartz.threadPool.class"> org.quartz.simpl.SimpleThreadPool </prop> <prop key="org.quartz.threadPool.threadCount"> </prop> <prop key="org.quartz.threadPool.threadPriority"> 5 </prop> <prop key="org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread"> true </prop> </props> </property> <!-- 触发器,可以放一大堆触发器 --> <property name="triggers"> <list> <!-- 在这里加 --> <ref bean="mainTrigger"/> </list> </property> <property name="triggerListeners"> <list> <!-- 触发器的监听器 --> <ref bean="mainTriggerListener" /> </list> </property> </bean> </beans>
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.
spring框架整合使用定时任务框架java quartz的示例代码配置,布布扣,bubuko.com
spring框架整合使用定时任务框架java quartz的示例代码配置
原文：http://blog.csdn.net/yaerfeng/article/details/25460507