Spring中使用Quartz(一)

                   Quartz使用

开发环境：Spring2.0。如果包类没有Quartz包，则需要加入到类路径。

A:extends QuartzJobBean方法

1：定义任务（extends QuartzJobBean）

创建一个Job:

package onlyfun.bb.Quartz;

import org.quartz.JobExecutionContext;

import org.springframework.scheduling.quartz.QuartzJobBean;

public class QuartzDemo extends QuartzJobBean {

    private JobData jobData; //JobData为自定义类

    public void executeInternal(JobExecutionContext context){

       System.out.println(jobData.getData()+" is executed");

    }

public JobData getJobData() {

       return jobData;

    }

public void setJobData(JobData jobData) {

       this.jobData = jobData;

    }

}

JobData.java:

package onlyfun.bb.Quartz;

import java.util.Date;

public class JobData {

    public String getData(){

       return "Data from JobData at "+new Date().toString();

    }}

2: 配置

<!-- use Quartz -->

 <bean id="someData" class="onlyfun.bb.Quartz.JobData"></bean>

 

 <bean id="jobDetailBean" class="org.springframework.scheduling.quartz.JobDetailBean">

    <property name="jobClass" value="onlyfun.bb.Quartz.QuartzDemo"></property>

    <property name="jobDataAsMap">

      <map>

        <entry key="jobData" value-ref="someData"></entry>

      </map>

    </property>

 </bean>

 <bean id="simpleTriggerBean"

 class="org.springframework.scheduling.quartz.SimpleTriggerBean">

    <property name="jobDetail" ref="jobDetailBean"></property>

    <property name="repeatInterval" value="2000"></property>

    <property name="startDelay" value="1000"></property>

 </bean>

 

 <bean id="scheduledFactoryBean"

 class="org.springframework.scheduling.quartz.SchedulerFactoryBean">

   <property name="triggers">

     <list>

       <ref bean="simpleTriggerBean"/>

     </list>

   </property>

 </bean>

 

注意：在JobDetailBean的jobClass属性必须提供Job的类名称，而不是Job类的实例。Job所需的数据可以在jobDataAsMap属性中设置。

在任务的周期指定上，使用SimpleTriggerBean类来指定，与TimerTask指定方式类似。

排定Job用SchedulerFactoryBean类。

完成设置后，只要在启动Spring并读取定义文件后，计划任务就会执行。

 

3：测试

package onlyfun.bb.Quartz;

import java.io.*;

import org.quartz.Scheduler;

import org.quartz.SchedulerException;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestQuartzDemo {

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

       // TODO Auto-generated method stub

ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");

       System.out.println("启动Task:");

       System.out.println("请输入 exit 结束Task:");

       //A处

BufferedReader reader=new BufferedReader(new InputStreamReader(System.in));

       while(true){

           if(reader.readLine().equals("exit")) break; }

       //此句可以放在A处

Scheduler scheduler=

(Scheduler)context.getBean("scheduledFactoryBean");

       try {

           scheduler.shutdown();

       } catch (SchedulerException e) {

           // TODO Auto-generated catch block

           e.printStackTrace();

       }

}  }

 

4：测试分析：

使用SimpleTriggerBean类只能做简单Job与Job之间的执行周期指定，如果需要在指定时间执行，可以使用CronTriggerBean类。

修改配置文件如下：

<!-- use Quartz -->

 <bean id="someData" class="onlyfun.bb.Quartz.JobData"></bean>

 <bean id="jobDetailBean" class="org.springframework.scheduling.quartz.JobDetailBean">

    <property name="jobClass" value="onlyfun.bb.Quartz.QuartzDemo"></property>

    <property name="jobDataAsMap">

      <map>

        <entry key="jobData" value-ref="someData"></entry>

      </map>

    </property>

 </bean>

<bean id="cronTriggerBean"

 class="org.springframework.scheduling.quartz.CronTriggerBean">

    <property name="jobDetail" ref="jobDetailBean"></property>

    <property name="cronExpression" value="0 37-38 15 * * ?"/>

 </bean>

 <bean id="scheduledFactoryBean"

 class="org.springframework.scheduling.quartz.SchedulerFactoryBean">

   <property name="triggers">

     <list>

       <ref bean="cronTriggerBean"/>

     </list>

   </property>

 </bean>