spring框架整合使用定时任务框架java quartz的示例代码配置

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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

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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

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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

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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

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<?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

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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.