Spring integrates Quartz to implement dynamic timer sample code

1. Version Description

Versions below spring 3.1 must use the quartz1.x series. Only versions above 3.1 support quartz 2.x, otherwise an error will occur.

Reason: Spring supports quartz implementation. org.springframework.scheduling.quartz.CronTriggerBean inherits org.quartz.CronTrigger. In the quartz1.x series, org.quartz.CronTrigger is a class, and in quartz2. org.quartz.CronTrigger in the Version 1.8.6

2. Add jar package

Mine is a maven project, and the relevant pom.xml configuration is as follows:

<properties>
   <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   <spring.version>3.0.7.RELEASE</spring.version>
   <quartz.version>1.8.6</quartz.version>
 </properties>

　<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-context</artifactId>
  <version>${spring.version}</version>
  <exclusions>
    <!-- Exclude Commons Logging in favor of SLF4j -->
    <exclusion>
      <groupId>commons-logging</groupId>
      <artifactId>commons-logging</artifactId>
    </exclusion>
  </exclusions>
</dependency>
 
<dependency><!--3.0.7没这个包 -->
  <groupId>org.springframework</groupId>
  <artifactId>spring-context-support</artifactId>
  <version>${spring.version}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-webmvc</artifactId>
  <version>${spring.version}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-orm</artifactId>
  <version>${spring.version}</version>
  <type>jar</type>
  <scope>compile</scope>
</dependency>
 
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-test</artifactId>
  <version>${spring.version}</version>
  <type>jar</type>
  <scope>test</scope>
</dependency>

3. Integration implementation

1. Spring configuration

spring only needs to add the quartz scheduling factory bean

<bean id="schedulerFactoryBean" class="org.springframework.scheduling.quartz.SchedulerFactoryBean" />

2. Timer work class implementation

Define the timer job class, this class Inherited from the job class

package com.ld.nhmz.quartz;
 
import java.text.SimpleDateFormat;
import java.util.Date;
 
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
 
/**
 * quartz示例定时器类
 * 
 * @author Administrator
 * 
 */
public class QuartzJobExample implements Job {
  @Override
  public void execute(JobExecutionContext arg0) throws JobExecutionException {
    System.out.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + "★★★★★★★★★★★");
  }
}

Define timer management class

package com.ld.nhmz.quartz;
 
import org.quartz.CronTrigger;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
 
/**
 * Quartz调度管理器
 * 
 * @author Administrator
 * 
 */
public class QuartzManager {
  private static String JOB_GROUP_NAME = "EXTJWEB_JOBGROUP_NAME";
  private static String TRIGGER_GROUP_NAME = "EXTJWEB_TRIGGERGROUP_NAME";
 
  /**
   * @Description: 添加一个定时任务，使用默认的任务组名，触发器名，触发器组名
   * 
   * @param sched
   *      调度器
   * 
   * @param jobName
   *      任务名
   * @param cls
   *      任务
   * @param time
   *      时间设置，参考quartz说明文档
   * 
   * @Title: QuartzManager.java
   */
  public static void addJob(Scheduler sched, String jobName, @SuppressWarnings("rawtypes") Class cls, String time) {
    try {
      JobDetail jobDetail = new JobDetail(jobName, JOB_GROUP_NAME, cls);// 任务名，任务组，任务执行类
      // 触发器
      CronTrigger trigger = new CronTrigger(jobName, TRIGGER_GROUP_NAME);// 触发器名,触发器组
      trigger.setCronExpression(time);// 触发器时间设定
      sched.scheduleJob(jobDetail, trigger);
      // 启动
      if (!sched.isShutdown()) {
        sched.start();
      }
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
 
  /**
   * @Description: 添加一个定时任务
   * 
   * @param sched
   *      调度器
   * 
   * @param jobName
   *      任务名
   * @param jobGroupName
   *      任务组名
   * @param triggerName
   *      触发器名
   * @param triggerGroupName
   *      触发器组名
   * @param jobClass
   *      任务
   * @param time
   *      时间设置，参考quartz说明文档
   * 
   * @Title: QuartzManager.java
   */
  public static void addJob(Scheduler sched, String jobName, String jobGroupName, String triggerName, String triggerGroupName, @SuppressWarnings("rawtypes") Class jobClass, String time) {
    try {
      JobDetail jobDetail = new JobDetail(jobName, jobGroupName, jobClass);// 任务名，任务组，任务执行类
      // 触发器
      CronTrigger trigger = new CronTrigger(triggerName, triggerGroupName);// 触发器名,触发器组
      trigger.setCronExpression(time);// 触发器时间设定
      sched.scheduleJob(jobDetail, trigger);
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
 
  /**
   * @Description: 修改一个任务的触发时间(使用默认的任务组名，触发器名，触发器组名)
   * 
   * @param sched
   *      调度器
   * @param jobName
   * @param time
   * 
   * @Title: QuartzManager.java
   */
  @SuppressWarnings("rawtypes")
  public static void modifyJobTime(Scheduler sched, String jobName, String time) {
    try {
      CronTrigger trigger = (CronTrigger) sched.getTrigger(jobName, TRIGGER_GROUP_NAME);
      if (trigger == null) {
        return;
      }
      String oldTime = trigger.getCronExpression();
      if (!oldTime.equalsIgnoreCase(time)) {
        JobDetail jobDetail = sched.getJobDetail(jobName, JOB_GROUP_NAME);
        Class objJobClass = jobDetail.getJobClass();
        removeJob(sched, jobName);
        addJob(sched, jobName, objJobClass, time);
      }
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
 
  /**
   * @Description: 修改一个任务的触发时间
   * 
   * @param sched
   *      调度器 *
   * @param sched
   *      调度器
   * @param triggerName
   * @param triggerGroupName
   * @param time
   * 
   * @Title: QuartzManager.java
   */
  public static void modifyJobTime(Scheduler sched, String triggerName, String triggerGroupName, String time) {
    try {
      CronTrigger trigger = (CronTrigger) sched.getTrigger(triggerName, triggerGroupName);
      if (trigger == null) {
        return;
      }
      String oldTime = trigger.getCronExpression();
      if (!oldTime.equalsIgnoreCase(time)) {
        CronTrigger ct = (CronTrigger) trigger;
        // 修改时间
        ct.setCronExpression(time);
        // 重启触发器
        sched.resumeTrigger(triggerName, triggerGroupName);
      }
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
 
  /**
   * @Description: 移除一个任务(使用默认的任务组名，触发器名，触发器组名)
   * 
   * @param sched
   *      调度器
   * @param jobName
   * 
   * @Title: QuartzManager.java
   */
  public static void removeJob(Scheduler sched, String jobName) {
    try {
      sched.pauseTrigger(jobName, TRIGGER_GROUP_NAME);// 停止触发器
      sched.unscheduleJob(jobName, TRIGGER_GROUP_NAME);// 移除触发器
      sched.deleteJob(jobName, JOB_GROUP_NAME);// 删除任务
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
 
  /**
   * @Description: 移除一个任务
   * 
   * @param sched
   *      调度器
   * @param jobName
   * @param jobGroupName
   * @param triggerName
   * @param triggerGroupName
   * 
   * @Title: QuartzManager.java
   */
  public static void removeJob(Scheduler sched, String jobName, String jobGroupName, String triggerName, String triggerGroupName) {
    try {
      sched.pauseTrigger(triggerName, triggerGroupName);// 停止触发器
      sched.unscheduleJob(triggerName, triggerGroupName);// 移除触发器
      sched.deleteJob(jobName, jobGroupName);// 删除任务
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
 
  /**
   * @Description:启动所有定时任务
   * 
   * @param sched
   *      调度器
   * 
   * @Title: QuartzManager.java
   */
  public static void startJobs(Scheduler sched) {
    try {
      sched.start();
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
 
  /**
   * @Description:关闭所有定时任务
   * 
   * 
   * @param sched
   *      调度器
   * 
   * 
   * @Title: QuartzManager.java
   */
  public static void shutdownJobs(Scheduler sched) {
    try {
      if (!sched.isShutdown()) {
        sched.shutdown();
      }
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
}

Test code, here the SchedulerFactory does not use the beans configured in spring, but is new, used for testing

package com.ld.nhmz.quartz.test;
 
import org.junit.Test;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.impl.StdSchedulerFactory;
 
import com.ld.nhmz.quartz.QuartzJobExample;
import com.ld.nhmz.quartz.QuartzManager;
 
/**
 * @Description: 测试类
 * 
 * @ClassName: QuartzTest.java
 */
public class QuartzTest {
  @Test
  public void quartz() {
    try {
      SchedulerFactory gSchedulerFactory = new StdSchedulerFactory();
      Scheduler sche = gSchedulerFactory.getScheduler();
      String job_name = "动态任务调度";
      System.out.println("【系统启动】开始(每1秒输出一次)...");
      QuartzManager.addJob(sche, job_name, QuartzJobExample.class, "0/1 * * * * ?");
 
      Thread.sleep(3000);
      System.out.println("【修改时间】开始(每2秒输出一次)...");
      QuartzManager.modifyJobTime(sche, job_name, "10/2 * * * * ?");
      Thread.sleep(4000);
      System.out.println("【移除定时】开始...");
      QuartzManager.removeJob(sche, job_name);
      System.out.println("【移除定时】成功");
 
      System.out.println("【再次添加定时任务】开始(每10秒输出一次)...");
      QuartzManager.addJob(sche, job_name, QuartzJobExample.class, "*/10 * * * * ?");
      Thread.sleep(30000);
      System.out.println("【移除定时】开始...");
      QuartzManager.removeJob(sche, job_name);
      System.out.println("【移除定时】成功");
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

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Implementing timer management in spring Control layer code

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