Spring整合Quartz实现持久化、动态设定时间

小咪咪 2021-12-23 06:55 223阅读 0赞

一、spring整合

网上一搜有很多整合的方式，这里我采用了其中的一种（暂时还没有对其他的方法研究过）。

对于spring的整合其中的任务，spring提供了几个类、接口（这些类都实现了Job接口）：

org.springframework.scheduling.quartz.QuartzJobBean

**　　**org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean.MethodInvokingJob**　**

**　　**org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean.StatefulMethodInvokingJob

**　　**![2012121311533335.png][]

QuartzJobBean和MethodInvokingJob是无状态的，StatefulMethodInvokingJob是有状态的。

可以选择自己的需求选择继承与哪个类。

关于Scheduler在Spring上的配置：

注意：其中lazy-init="false",和 <property name="autoStartup" value="true"/>最好按照自己的需求作统一的配置

二、quartz.properties　配置持久化的信息

# Default Properties file for use by StdSchedulerFactory
    # to create a Quartz Scheduler Instance, if a different
    # properties file is not explicitly specified.
    #
    #============================================================================
    # Configure Main Scheduler Properties
    #============================================================================
    org.quartz.scheduler.instanceName = DefaultQuartzScheduler
    org.quartz.scheduler.rmi.export = false
    org.quartz.scheduler.rmi.proxy = false
    org.quartz.scheduler.wrapJobExecutionInUserTransaction = false
    #============================================================================
    # 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.scheduler.classLoadHelper.class=org.quartz.simpl.CascadingClassLoadHelper
    org.quartz.jobStore.misfireThreshold = 60000
    org.quartz.jobStore.useProperties = true
    org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX
    org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate
    #havent cluster spring
    #org.quartz.jobStore.dataSource = myDS 
    org.quartz.jobStore.tablePrefix = qrtz_
    org.quartz.jobStore.isClustered = false  
    org.quartz.jobStore.maxMisfiresToHandleAtATime=1
    #==============================================================  
    #Non-Managed Configure Datasource  if you don't use spring cluster
    #==============================================================   
    #org.quartz.dataSource.myDS.driver = com.mysql.jdbc.Driver   
    #org.quartz.dataSource.myDS.URL = jdbc\:mysql\://localhost\:3306/qrtz  
    #org.quartz.dataSource.myDS.user = root   
    #org.quartz.dataSource.myDS.password = root 
    #org.quartz.dataSource.myDS.maxConnections =10

这里要备注的是：org.quartz.jobStore.misfireThreshold = 60000

这个属性是配置当发现触发器过时，允许做就之内的trigger任有效。对于详细了解其中的机制，可以查看数据库的变化，特别是数据库中的QRTZ\_FIRED\_TRIGGERS表。

对于其状态有ACQUIRED和EXECUTING两个状态进行转化，并因此会影响QRTZ\_TRIGGERS的表的数据。（个人猜想：quartz是利用这几个字段来保存断点的）

三、下面是项目的搭建代码：

任务类信息类JobModel

public class JobModel {
        private String jobName; 
        private String group;//对于job，trigger相互绑定的，采用相同的group 
        private Class<?> jobClass;
        private Trigger trigger;
        public JobModel() {
            super();
        }
            //.....getter,setter   
    }

定义一个无状态的Job（若定义一个有状态的Job，需要继承与StatefulMethodInvokingJob）

public class CommonJob extends MethodInvokingJob{
        @Override
        protected void executeInternal(JobExecutionContext context)
                throws JobExecutionException {
            System.out.println("commonJob executing ...");
            JobDataMap dataMap = context.getJobDetail().getJobDataMap();
            int value = Integer.parseInt(dataMap.getString("key"));
            System.out.println("value is " + value);
            dataMap.put("key", new Integer(++value).toString());
            
        }
    }

SchedulerManager一共对在scheduler中操作job

public class QrtzManager {
        private static Scheduler scheduler;
        static {
            ApplicationContext context = new ClassPathXmlApplicationContext(
                    "applicationContext-quartz2.xml");
            scheduler = (StdScheduler) context.getBean("quartzScheduler");
        }
        public void standBy(){
            try {
                scheduler.standby();
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
        }
        public void start(){
            try {
                scheduler.start();
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
        }
        //add a job
        public void deploy(JobModel model,JobDataMap dataMap){
            JobDetail jobDetail = new JobDetail(model.getJobName(),model.getGroup(),model.getJobClass());
            jobDetail.setJobDataMap(dataMap);
            try {
                scheduler.scheduleJob(jobDetail,model.getTrigger());
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
        }
        //delete a job
        public void unDeploy(String jobName,String group){
            if (jobName.equals("") || group.equals("")) {
                return ;
            }
            try {
                scheduler.deleteJob(jobName, group);
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
            
        }
    }

测试类

package com.lps.schedulerserver.service02;
    
    import java.text.DateFormat;
    import java.text.ParseException;
    import java.text.SimpleDateFormat;
    import java.util.Date;
    
    import org.junit.Test;
    import org.quartz.CronTrigger;
    import org.quartz.JobDataMap;
    import org.quartz.SimpleTrigger;
    import org.quartz.Trigger;
    
    public class Main {
        public static void main(String[] args) {
        
            Trigger trigger = new SimpleTrigger("trigger02", "group02", new Date(), parse("2012-12-12 18:30:00"), 5, 10000L);
            JobModel model1 = new JobModel("job01", "group01", CommonJob.class, trigger);
            String expression = "0/15 * * ? * *";
            Trigger trigger2 = null;
            try {
                trigger2 = new CronTrigger("trigger01", "group", expression);
                trigger2.setStartTime(new Date());
            } catch (ParseException e) {
                e.printStackTrace();
            }
            JobModel model2 = new JobModel("job02","group02",StatefulJob.class,trigger2);
            QrtzManager manager = new QrtzManager();
            //jobdatamap
            JobDataMap dataMap = new JobDataMap();
            dataMap.put("key", "1");
            manager.deploy(model2, dataMap);
            System.out.println("deploy model2 at:"+new Date());
        }
        public static Date parse(String str){
            DateFormat format = new SimpleDateFormat("yy-MM-dd HH:mm:ss");
            Date date = null ;
            try {
                date = format.parse(str);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            return date;
        }
        @Test
        public void deleteJob(){
            QrtzManager manager = new QrtzManager();
            manager.unDeploy("job01","group01");
        }
    }

转载于:https://www.cnblogs.com/maiyu-d/archive/2012/12/13/2816271.html

[2012121311533335.png]: /images/20211223/a04ea79cc3624ab883d0cbdd12232ba2.png