Spring整合Quartz实现动态定时器的示例代码

2019-11-26 13:13:26

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一、版本说明

spring3.1以下的版本必须使用quartz1.x系列，3.1以上的版本才支持quartz 2.x，不然会出错。

原因：spring对于quartz的支持实现，org.springframework.scheduling.quartz.CronTriggerBean继承了org.quartz.CronTrigger，在quartz1.x系列中org.quartz.CronTrigger是个类，而在quartz2.x系列中org.quartz.CronTrigger变成了接口，从而造成无法用spring的方式配置quartz的触发器（trigger）

此示例所选版本：spring版本号3.0.7.RELEASE，quartz版本1.8.6

二、添加jar包

我的是maven工程，pom.xml相关配置如下：

 <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>

 <dependency>      <groupId>org.quartz-scheduler</groupId>      <artifactId>quartz</artifactId>      <version>${quartz.version}</version>    </dependency>

三、整合实现

1、spring配置

spring只需要添加quartz调度工厂bean就可以了

复制代码代码如下:

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

2、定时器工作类实现

定义定时器作业类，该类继承自job类

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()) + "★★★★★★★★★★★");  }}

定义定时器管理类

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);    }  }}

测试代码，这里SchedulerFactory没有使用spring中配置的bean，而是new出来的，做测试用

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();    }  }}

显示结果：