jfinal整合quartz实现定时任务的两种方式

最新推荐文章于 2021-05-14 03:32:40 发布

iamlzjoco

最新推荐文章于 2021-05-14 03:32:40 发布

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分类专栏： jfinal 文章标签： jfinal整合quartz

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本文介绍Quartz定时任务的两种实现方法，包括配置插件、设置配置文件、编写任务代码等步骤，适用于需要定时执行任务的项目。

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第一种实现方式

1.导入包

<dependency>
       <groupId>org.quartz-scheduler</groupId>
       <artifactId>quartz</artifactId>
       <version>2.3.0</version>
       </dependency>

2：在myconfig中配置quartz插件：

QuartzPlugin quatrZPlugin = new QuartzPlugin();

me.add(quatrZPlugin);//定时任务插件

3.在根目录下设置配置文件，我设置的目录是src/main/resources

quartz_config.properties

#配置主要调度程序属性

org.quartz.scheduler.instanceName = DefaultQuartzScheduler
org.quartz.scheduler.instanceId = AUTO
org.quartz.scheduler.rmi.export = false
org.quartz.scheduler.rmi.proxy = false
org.quartz.scheduler.wrapJobExecutionInUserTransaction = false

#配置线程池
org.quartz.threadPool.threadCount = 10
org.quartz.threadPool.threadPriority = 5

# 配置任务
org.quartz.jobStore.misfireThreshold = 60000
org.quartz.scheduler.skipUpdateCheck = true

4.在src/main/java下面编写代码

所需工具类有三个：FormaterCronExpression.java、QuartZKit.java、QuartzPlugin.java；需要一个实体类：JobBean.java；然后就可以编写任务了，目录结构如下图：

（1），config配置类，

（2），任务实体类，

（3），任务实现类，

（4），工具类，

（5）.配置文件。

JobBean.java：

public class JobBean {
   /** 任务id */
   private String jobId;

   /** 任务描述 */
   private String jobDesc;

   /** 任务运行时间表达式 */
   private String cronExpression;

   /** 任务分组 */
   private String jobGroup;

   /** 任务类 */
   private String jobClass;

   public String getJobId() {
       return jobId;
   }

   public void setJobId(String jobId) {
       this.jobId = jobId;
   }

   public String getJobDesc() {
       return jobDesc;
   }

   public void setJobDesc(String jobDesc) {
       this.jobDesc = jobDesc;
   }

   public String getCronExpression() {
       return cronExpression;
   }

   public void setCronExpression(String cronExpression) {
       this.cronExpression = cronExpression;
   }

   public String getJobGroup() {
       return jobGroup;
   }

   public void setJobGroup(String jobGroup) {
       this.jobGroup = jobGroup;
   }

   public String getJobClass() {
       return jobClass;
   }

   public void setJobClass(String jobClass) {
       this.jobClass = jobClass;
   }

   public JobBean(String jobId, String jobDesc, String cronExpression, String jobGroup, String jobClass) {
       this.jobId = jobId;
       this.jobDesc = jobDesc;
       this.cronExpression = cronExpression;
       this.jobGroup = jobGroup;
       this.jobClass = jobClass;
   }

   public JobBean() {
       super();
   }
}

FormaterCronExpression.java：

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class FormaterCronExpression {
   static String formart = "yyyy-MM-dd HH:mm:ss";

   public static String formaterCronExpression(String date){
       SimpleDateFormat format = new SimpleDateFormat(formart.substring(0, date.length() - 1));
       SimpleDateFormat format2 = new SimpleDateFormat("yyyy MM dd HH mm ss");
       try {
           Date d = format.parse(date);
           date = format2.format(d);
           String[] dateArry = date.split(" ");
           String exp = dateArry[5] + " " + dateArry[4] + " " + dateArry[3] + " " + dateArry[2] + " " + dateArry[1]
                   + " ? " + dateArry[0];
           return exp;
       } catch (ParseException e) {
           e.printStackTrace();
       }
       return "";
   }
}

QuartZKit.java：

package com.pointlion.sys.plugin.quartz;

import com.pointlion.sys.plugin.quartz.bean.JobBean;

public class QuartZKit {
   /***
   * 动态添加任务
   */
   public static void addTask(String taskid , String closeTime){
   JobBean job = new JobBean();
   job.setJobClass("com.pointlion.sys.plugin.quartz.task.ResetYearHoliday");
   job.setCronExpression(FormaterCronExpression.formaterCronExpression(closeTime));
   job.setJobGroup("DakeTaskJob");
   job.setJobDesc("DakeTaskJob_" + taskid);
   QuartzPlugin.addJob(job);
   }
}

QuartzPlugin.java：

package com.pointlion.sys.plugin.quartz;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.quartz.CronScheduleBuilder;
import org.quartz.CronTrigger;
import org.quartz.Job;
import org.quartz.JobBuilder;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.TriggerBuilder;
import org.quartz.TriggerKey;
import org.quartz.impl.StdSchedulerFactory;

import com.jfinal.kit.PropKit;
import com.jfinal.kit.StrKit;
import com.jfinal.plugin.IPlugin;
import com.pointlion.sys.plugin.quartz.bean.JobBean;

public class QuartzPlugin implements IPlugin{

   private List<JobBean> jobs = new ArrayList<JobBean>();
   private SchedulerFactory sf;
   private static Scheduler scheduler;
   private String jobConfig;
   private String confConfig;
   private Map<Object, Object> jobProp;

   public QuartzPlugin(String jobConfig, String confConfig) {
       this.jobConfig = jobConfig;
       this.confConfig = confConfig;
   }

   public QuartzPlugin(String jobConfig) {
       this.jobConfig = jobConfig;
       this.confConfig = "quartz_config.properties";
   }

   public QuartzPlugin() {
       this.jobConfig = "quartz_job.properties";
       this.confConfig = "quartz_config.properties";
   }



   @Override
   public boolean start() {
       loadJobsFromProperties();
       startJobs();
       return true;
   }


   /***
   * 从配置文件中加载任务
   */
   private void loadJobsFromProperties() {
       if (StrKit.isBlank(jobConfig)) {
           return;
       }
       jobProp = PropKit.use(jobConfig).getProperties();
       String jobArray = (String) jobProp.get("jobArray");
       if (StrKit.isBlank(jobArray)) {
           return;
       }
       String[] jobArrayList = jobArray.split(",");
       for (String jobName : jobArrayList) {
           jobs.add(createJobBean(jobName));
       }
   }

   private void startJobs() {
       try {
           if (StrKit.notBlank(confConfig)) {
               sf = new StdSchedulerFactory(confConfig);
           } else {
               sf = new StdSchedulerFactory();
           }
           scheduler = sf.getScheduler();
       } catch (SchedulerException e) {
           e.printStackTrace();
       }
       for (JobBean entry : jobs) {
           addJob(entry);
       }
       try {
           scheduler.start();
       } catch (SchedulerException e) {
           e.printStackTrace();
       }
   }

   public static void addJob(JobBean job) {
       try {
           TriggerKey triggerKey = TriggerKey.triggerKey(job.getJobDesc(), job.getJobGroup());
           CronTrigger trigger = (CronTrigger) scheduler.getTrigger(triggerKey);
           // 不存在，创建一个
           if (null == trigger) {
               @SuppressWarnings("unchecked")
               Class<Job> j2 = (Class<Job>) Class.forName(job.getJobClass());
               JobDetail jobDetail = JobBuilder.newJob(j2).withIdentity(job.getJobDesc(), job.getJobGroup()).build();
               jobDetail.getJobDataMap().put("scheduleJob", job);

               // 表达式调度构建器
               CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(job.getCronExpression());

               // 按新的cronExpression表达式构建一个新的trigger
               trigger = TriggerBuilder.newTrigger().withIdentity(job.getJobDesc(), job.getJobGroup())
                       .withSchedule(scheduleBuilder).build();
               try {
                   scheduler.scheduleJob(jobDetail, trigger);
               } catch (Exception e) {
                   e.printStackTrace();
               }
           } else {
               // Trigger已存在，那么更新相应的定时设置
               // 表达式调度构建器
               CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(job.getCronExpression());

               // 按新的cronExpression表达式重新构建trigger
               trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder).build();

               // 按新的trigger重新设置job执行
               scheduler.rescheduleJob(triggerKey, trigger);
           }
       } catch (Exception e) {
       }
   }

   private JobBean createJobBean(String key) {
       JobBean job = new JobBean();
       job.setJobClass(jobProp.get(key + ".class").toString());
       job.setCronExpression(jobProp.get(key + ".cron").toString());
       job.setJobGroup(jobProp.get(key+ ".group").toString());
       job.setJobDesc(jobProp.get(key + ".desc").toString());
       return job;
   }

   @Override
   public boolean stop() {
       try {
           scheduler.shutdown();
       } catch (SchedulerException e) {
           e.printStackTrace();
       }
       return true;
   }

}

任务示例ResetYearHoliday

package com.pointlion.sys.plugin.quartz.task;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.jfinal.kit.PropKit;
import com.jfinal.plugin.activerecord.Db;

public class ResetYearHoliday implements Job{
   private static final Logger logger = LoggerFactory.getLogger(ResetYearHoliday.class);
   @Override
   public void execute(JobExecutionContext context) {
       logger.info("*****************************开始重置所有员工年假******************");
       Db.update("update sys_user set year_holiday = '"+PropKit.get("yearHoliday").trim()+"' where type='1'");
       logger.info("*****************************完成重置所有员工年假******************");
   }

}

第一种定时任务实现代码编写结束，启动项目即可运行。

第二种实现方式

前两步和第一种实现方式一致，第三步中除了需要配置quartz_config.properties，配置内容和第一种方式中相同名字的配置文件内容一致；还需要配置quartz_job.properties，配置内容如下。

quartz_job.properties

#配置第一个定时任务

#开启的任务列表“,”隔开实际上为group
#jobArray = CrawlDataPolicyTask
jobArray =CheckTimeTask
#搭客任务定时结束
#[秒] [分] [小时] [日] [月] [周] [年]
CheckTimeTask.class=com.pointlion.sys.plugin.quartz.task.CheckTimeTask
CheckTimeTask.group=CheckTimeTask
CheckTimeTask.cron=0 0 1 * * ?
CheckTimeTask.desc=\u6BCF\u5E74\u91CD\u7F6E\u5E74\u5047\u6570\u91CF

#配置第二个定时任务

jobArray =DemoTask
DemoTask.class=com.pointlion.sys.plugin.quartz.task.DemoTask
DemoTask.group=DemoTask
DemoTask.cron=0/10 * * * * ?
DemoTask.desc=\u6BCF\u5E74\u91CD\u7F6E\u5E74\u5047\u6570\u91CF

第四步所需要的工具类QuartzPlugin.java和实体类JobBean.java和第一种实现方式中的一致。

第五步，编写定时任务内容，如下：

任务实例：DemoTask：

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

public class DemoTask implements Job {

   @Override
   public void execute(JobExecutionContext arg0) throws JobExecutionException {
       System.out.println("##########开始定时任务##########");
       System.out.println("aaaaaaaaaaaaaa");
       System.out.println("##########结束定时任务##########");

   }

}

第二种定时任务代码编写结束，启动项目即可运行。