Spring整合Quartz实现动态定时器

客官°小女子只卖身不卖艺 2022-05-08 15:04 247阅读 0赞

# 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>
                    
                    <exclusion>
                        <groupId>commons-logging</groupId>
                        <artifactId>commons-logging</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
    
            <dependency>
                <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

## 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：

![507108-20160907170839848-558209051.png][]

spring Control层代码中实现定时器管理

转载地址：[https://www.cnblogs.com/xrab/p/5850186.html?tdsourcetag=s\_pcqq\_aiomsg][https_www.cnblogs.com_xrab_p_5850186.html_tdsourcetag_s_pcqq_aiomsg]

[507108-20160907170839848-558209051.png]: /images/20220506/2ad973f82b6741688b8cfbe73f445b59.png
[https_www.cnblogs.com_xrab_p_5850186.html_tdsourcetag_s_pcqq_aiomsg]: https://www.cnblogs.com/xrab/p/5850186.html?tdsourcetag=s_pcqq_aiomsg