传参数给job及job状态学习

今天学习了quartz的第4例子，实现StatefulJob或者QuartzJobBean的job均是无状态的，每次触发器调用job都是new一个新的job，所以为了存储job的状态需要利用 JobDataMap data = context.getJobDetail().getJobDataMap();来完成，例子如下：

 

ColorJob.java:

 

 

package quartz.example.example4;

 

import java.util.Date;

 

import org.quartz.JobDataMap;

import org.quartz.JobExecutionContext;

import org.quartz.JobExecutionException;

import org.quartz.StatefulJob;

 

public class ColorJob implements StatefulJob {

 

 

    public static final String FAVORITE_COLOR = "favorite color";

    public static final String EXECUTION_COUNT = "count";

 

    private int _counter = 1;

 

    public ColorJob() {

    }

 

    public void execute(JobExecutionContext context)

        throws JobExecutionException {

 

        String jobName = context.getJobDetail().getFullName();

 

        JobDataMap data = context.getJobDetail().getJobDataMap();

        String favoriteColor = data.getString(FAVORITE_COLOR);

        int count = data.getInt(EXECUTION_COUNT);

        System.out.println("ColorJob: " + jobName + " executing at " + new Date() + "\n" +

            "  favorite color is " + favoriteColor + "\n" + 

            "  execution count (from job map) is " + count + "\n" + 

            "  execution count (from job member variable) is " + _counter);

 

        count++;

        data.put(EXECUTION_COUNT, count);

 

        _counter++;

    }

 

}

 

JobStateExample.java:

 

package quartz.example.example4;

 

import java.util.Date;

 

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import org.quartz.JobDetail;

import org.quartz.Scheduler;

import org.quartz.SimpleTrigger;

import org.quartz.TriggerUtils;

 

public class JobStateExample {

public ApplicationContext app;

public Scheduler sched;

    public void run() throws Exception {

 

        System.out.println("------- Initializing -------------------");

 

 

        System.out.println("------- Initialization Complete --------");

 

        System.out.println("------- Scheduling Jobs ----------------");

 

        long ts = TriggerUtils.getNextGivenSecondDate(null, 10).getTime();

 

        JobDetail job1 = new JobDetail("job1", "group1", ColorJob.class);

        SimpleTrigger trigger1 = new SimpleTrigger("trigger1", "group1", "job1", "group1",

                new Date(ts), null, 4, 10000);

        job1.getJobDataMap().put(ColorJob.FAVORITE_COLOR, "Green");

        job1.getJobDataMap().put(ColorJob.EXECUTION_COUNT, 1);

 

        Date scheduleTime1 = sched.scheduleJob(job1, trigger1);

        System.out.println(job1.getFullName() +

                " will run at: " + scheduleTime1 +  

                " and repeat: " + trigger1.getRepeatCount() + 

                " times, every " + trigger1.getRepeatInterval() / 1000 + " seconds");

 

        JobDetail job2 = new JobDetail("job2", "group1", ColorJob.class);

        SimpleTrigger trigger2 = new SimpleTrigger("trigger2", "group1", "job2", "group1",

                new Date(ts + 1000), null, 4, 10000);

        job2.getJobDataMap().put(ColorJob.FAVORITE_COLOR, "Red");

        job2.getJobDataMap().put(ColorJob.EXECUTION_COUNT, 1);

 

        Date scheduleTime2 = sched.scheduleJob(job2, trigger2);

        System.out.println(job2.getFullName() +

                " will run at: " + scheduleTime2 +

                " and repeat: " + trigger2.getRepeatCount() +

                " times, every " + trigger2.getRepeatInterval() / 1000 + " seconds"); 

 

 

        System.out.println("------- Starting Scheduler ----------------");

 

        sched.start();

 

        System.out.println("------- Started Scheduler -----------------");

 

        System.out.println("------- Waiting 60 seconds... -------------");

        try {

            Thread.sleep(60L * 1000L); 

        } catch (Exception e) {

        }

 

        System.out.println("------- Shutting Down ---------------------");

 

        sched.shutdown(true);

 

        System.out.println("------- Shutdown Complete -----------------");

    }

 

    public static void main(String[] args) throws Exception {

 

        JobStateExample example = new JobStateExample();

        example.app=new ClassPathXmlApplicationContext(new String[] {

"classpath:applicationContext.xml",

"classpath:applicationContext-quartz.xml" });

        example.sched = (Scheduler) example.app.getBean("quartzScheduler");

        example.run();

    }

 

}

运行结果如下：

------- Initializing -------------------

------- Initialization Complete --------

------- Scheduling Jobs ----------------

group1.job1 will run at: Wed Sep 28 11:13:40 CST 2011 and repeat: 4 times, every 10 seconds

group1.job2 will run at: Wed Sep 28 11:13:41 CST 2011 and repeat: 4 times, every 10 seconds

------- Starting Scheduler ----------------

------- Started Scheduler -----------------

------- Waiting 60 seconds... -------------

ColorJob: group1.job1 executing at Wed Sep 28 11:13:40 CST 2011

  favorite color is Green

  execution count (from job map) is 1

  execution count (from job member variable) is 1

ColorJob: group1.job2 executing at Wed Sep 28 11:13:41 CST 2011

  favorite color is Red

  execution count (from job map) is 1

  execution count (from job member variable) is 1

ColorJob: group1.job1 executing at Wed Sep 28 11:13:50 CST 2011

  favorite color is Green

  execution count (from job map) is 2

  execution count (from job member variable) is 1

ColorJob: group1.job2 executing at Wed Sep 28 11:13:51 CST 2011

  favorite color is Red

  execution count (from job map) is 2

  execution count (from job member variable) is 1

ColorJob: group1.job1 executing at Wed Sep 28 11:14:00 CST 2011

  favorite color is Green

  execution count (from job map) is 3

  execution count (from job member variable) is 1

ColorJob: group1.job2 executing at Wed Sep 28 11:14:01 CST 2011

  favorite color is Red

  execution count (from job map) is 3

  execution count (from job member variable) is 1

ColorJob: group1.job1 executing at Wed Sep 28 11:14:10 CST 2011

  favorite color is Green

  execution count (from job map) is 4

  execution count (from job member variable) is 1

ColorJob: group1.job2 executing at Wed Sep 28 11:14:11 CST 2011

  favorite color is Red

  execution count (from job map) is 4

  execution count (from job member variable) is 1

ColorJob: group1.job1 executing at Wed Sep 28 11:14:20 CST 2011

  favorite color is Green

  execution count (from job map) is 5

  execution count (from job member variable) is 1

ColorJob: group1.job2 executing at Wed Sep 28 11:14:21 CST 2011

  favorite color is Red

  execution count (from job map) is 5

  execution count (from job member variable) is 1

------- Shutting Down ---------------------

------- Shutdown Complete -----------------

 

可见，job的私有变量_counter并没有在每次触发的时候增加，一直都是1，而通过JobDataMap得到的count可以在每次触发时增加。

可能也可以使用如下方法，将private  int _counter = 1;改成private static int _counter = 1;这个方法会带来个问题，如果job同时被多个触发器用到，这会互相干扰，呵呵，这是static的特性，所以要慎用。

结果如下：

------- Initializing -------------------

------- Initialization Complete --------

------- Scheduling Jobs ----------------

group1.job1 will run at: Wed Sep 28 11:09:30 CST 2011 and repeat: 4 times, every 10 seconds

group1.job2 will run at: Wed Sep 28 11:09:31 CST 2011 and repeat: 4 times, every 10 seconds

------- Starting Scheduler ----------------

------- Started Scheduler -----------------

------- Waiting 60 seconds... -------------

ColorJob: group1.job1 executing at Wed Sep 28 11:09:30 CST 2011

  favorite color is Green

  execution count (from job map) is 1

  execution count (from job member variable) is 1

ColorJob: group1.job2 executing at Wed Sep 28 11:09:31 CST 2011

  favorite color is Red

  execution count (from job map) is 1

  execution count (from job member variable) is 2

ColorJob: group1.job1 executing at Wed Sep 28 11:09:40 CST 2011

  favorite color is Green

  execution count (from job map) is 2

  execution count (from job member variable) is 3

ColorJob: group1.job2 executing at Wed Sep 28 11:09:41 CST 2011

  favorite color is Red

  execution count (from job map) is 2

  execution count (from job member variable) is 4

ColorJob: group1.job1 executing at Wed Sep 28 11:09:50 CST 2011

  favorite color is Green

  execution count (from job map) is 3

  execution count (from job member variable) is 5

ColorJob: group1.job2 executing at Wed Sep 28 11:09:51 CST 2011

  favorite color is Red

  execution count (from job map) is 3

  execution count (from job member variable) is 6

ColorJob: group1.job1 executing at Wed Sep 28 11:10:00 CST 2011

  favorite color is Green

  execution count (from job map) is 4

  execution count (from job member variable) is 7

ColorJob: group1.job2 executing at Wed Sep 28 11:10:01 CST 2011

  favorite color is Red

  execution count (from job map) is 4

  execution count (from job member variable) is 8

ColorJob: group1.job1 executing at Wed Sep 28 11:10:10 CST 2011

  favorite color is Green

  execution count (from job map) is 5

  execution count (from job member variable) is 9

ColorJob: group1.job2 executing at Wed Sep 28 11:10:11 CST 2011

  favorite color is Red

  execution count (from job map) is 5

  execution count (from job member variable) is 10

------- Shutting Down ---------------------

------- Shutdown Complete -----------------

附：

applicationContext-quartz.xml：

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">

<beans>

    <bean name="quartzScheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">

        <property name="dataSource">

            <ref bean="dataSource"/>

        </property>

        <property name="applicationContextSchedulerContextKey" value="applicationContextKey"/>

        <property name="configLocation" value="classpath:quartz.properties"/>

<!-- <property name="triggers">-->

<!-- <list>   -->

<!-- <ref bean="trigger1"/>-->

<!-- <ref bean="trigger2"/>     -->

<!-- </list>-->

<!-- </property> -->

    </bean>

    

<!--    <bean id="jobDetail1" class="frameworkx.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">-->

<!--        <property name="targetObject" ref="simpleService1"/>-->

<!--        <property name="targetMethod" value="testMethod1"/>-->

<!-- <property name="shouldRecover" value="true"/>-->

<!--    </bean>-->

<!--    <bean id="trigger1" class="org.springframework.scheduling.quartz.CronTriggerBean">-->

<!--        <property name="jobDetail" ref="jobDetail1"/>-->

<!--        <property name="cronExpression" value="0/5 * * ? * * *"/>-->

<!--    </bean>    -->

  

<!--    <bean id="jobDetail2" class="frameworkx.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">-->

<!--        <property name="targetObject" ref="simpleService1"/>-->

<!--        <property name="targetMethod" value="testMethod2"/>-->

<!-- <property name="shouldRecover" value="true"/>-->

<!--    </bean>-->

<!--    <bean id="trigger2" class="org.springframework.scheduling.quartz.SimpleTriggerBean">-->

<!--        <property name="jobDetail" ref="jobDetail2"/>-->

<!--        <property name="startDelay" value="1"/>-->

<!--        <property name="repeatCount" value="10"/>-->

<!--        <property name="repeatInterval" value="1000"/>-->

<!--    </bean>-->

    

<!--     <bean id="jobDetail" class="org.springframework.scheduling.quartz.JobDetailBean">-->

<!--        <property name="jobClass">-->

<!--            <value>-->

<!--                quartz.example.example5.test1.MyQuartzJobBean-->

<!--            </value>-->

<!--        </property>-->

<!--        <property name="jobDataAsMap">-->

<!--            <map>-->

<!--                <entry key="simpleService">-->

<!--                    <ref bean="simpleService"/>-->

<!--                </entry>-->

<!--            </map>-->

<!--        </property>-->

<!--    </bean>-->

    

</beans>

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:aop="http://www.springframework.org/schema/aop"

    xmlns:tx="http://www.springframework.org/schema/tx"

    xmlns:context="http://www.springframework.org/schema/context"

     xmlns:jee="http://www.springframework.org/schema/jee"

    xsi:schemaLocation="

    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd

    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd

    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd

     http://www.springframework.org/schema/jee

       http://www.springframework.org/schema/jee/spring-jee-2.5.xsd"  >

  

   <context:component-scan base-package="com.sundoctor"/>

<!-- 属性文件读入 -->

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

<property name="locations">

<list>

<value>classpath:jdbc.properties</value>

</list>

</property>

</bean>

<!-- 数据源定义,使用c3p0 连接池 -->

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">

<property name="driverClass" value="${jdbc.driverClassName}" />

<property name="jdbcUrl" value="${jdbc.url}" />

<property name="user" value="${jdbc.username}" />

<property name="password" value="${jdbc.password}" />

<property name="initialPoolSize" value="5" />

<property name="minPoolSize" value="5" />

<property name="maxPoolSize" value="20" />

<property name="acquireIncrement" value="2" />

<property name="maxIdleTime" value="3600" />

<property name="idleConnectionTestPeriod"  value="180"/>  

<property name="automaticTestTable" value="C3P0TESTTABLE"/> 

</bean>

</beans>

quartz.properties：

#==============================================================  

#Configure Main Scheduler Properties  

#==============================================================   

org.quartz.scheduler.instanceName = TestScheduler1   

org.quartz.scheduler.instanceId = AUTO  

#==============================================================  

#Configure ThreadPool  

#============================================================== 

org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool

org.quartz.threadPool.threadCount = 10

org.quartz.threadPool.threadPriority = 5

org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread = true

#==============================================================  

#Configure JobStore  

#============================================================== 

org.quartz.jobStore.misfireThreshold = 50000

org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX

org.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.StdJDBCDelegate

org.quartz.jobStore.tablePrefix = QRTZ_

org.quartz.jobStore.maxMisfiresToHandleAtATime=10

org.quartz.jobStore.isClustered = true  

org.quartz.jobStore.clusterCheckinInterval = 20000