Spring Boot 定时任务，怎么实现任务动态增删启停？

Posted 2021-10-22 Java技术栈

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了Spring Boot 定时任务，怎么实现任务动态增删启停？相关的知识，希望对你有一定的参考价值。

作者：jessehua

链接：https://www.jianshu.com/p/0f68936393fd

在spring boot项目中，可以通过@EnableScheduling注解和@Scheduled注解实现定时任务，也可以通过SchedulingConfigurer接口来实现定时任务。但是这两种方式不能动态添加、删除、启动、停止任务。要实现动态增删启停定时任务功能，比较广泛的做法是集成Quartz框架。

但是本人的开发原则是：在满足项目需求的情况下，尽量少的依赖其它框架，避免项目过于臃肿和复杂。查看spring-context这个jar包中org.springframework.scheduling.ScheduledTaskRegistrar这个类的源代码，发现可以通过改造这个类就能实现动态增删启停定时任务功能。

Spring Boot 基础就不介绍了，推荐下这个实战教程：
https://github.com/javastacks/spring-boot-best-practice

添加执行定时任务的线程池配置类

@Configuration
public class SchedulingConfig {
    @Bean
    public TaskScheduler taskScheduler() {
        ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
        // 定时任务执行线程池核心线程数
        taskScheduler.setPoolSize(4);
        taskScheduler.setRemoveOnCancelPolicy(true);
        taskScheduler.setThreadNamePrefix("TaskSchedulerThreadPool-");
        return taskScheduler;
    }
}

添加ScheduledFuture的包装类。ScheduledFuture是ScheduledExecutorService定时任务线程池的执行结果。

public final class ScheduledTask {

    volatile ScheduledFuture<?> future;

    /**
     * 取消定时任务
     */
    public void cancel() {
        ScheduledFuture<?> future = this.future;
        if (future != null) {
            future.cancel(true);
        }
    }
}

添加Runnable接口实现类，被定时任务线程池调用，用来执行指定bean里面的方法。

public class SchedulingRunnable implements Runnable {

    private static final Logger logger = LoggerFactory.getLogger(SchedulingRunnable.class);

    private String beanName;

    private String methodName;

    private String params;

    public SchedulingRunnable(String beanName, String methodName) {
        this(beanName, methodName, null);
    }

    public SchedulingRunnable(String beanName, String methodName, String params) {
        this.beanName = beanName;
        this.methodName = methodName;
        this.params = params;
    }

    @Override
    public void run() {
        logger.info("定时任务开始执行 - bean：{}，方法：{}，参数：{}", beanName, methodName, params);
        long startTime = System.currentTimeMillis();

        try {
            Object target = SpringContextUtils.getBean(beanName);

            Method method = null;
            if (StringUtils.isNotEmpty(params)) {
                method = target.getClass().getDeclaredMethod(methodName, String.class);
            } else {
                method = target.getClass().getDeclaredMethod(methodName);
            }

            ReflectionUtils.makeAccessible(method);
            if (StringUtils.isNotEmpty(params)) {
                method.invoke(target, params);
            } else {
                method.invoke(target);
            }
        } catch (Exception ex) {
            logger.error(String.format("定时任务执行异常 - bean：%s，方法：%s，参数：%s ", beanName, methodName, params), ex);
        }

        long times = System.currentTimeMillis() - startTime;
        logger.info("定时任务执行结束 - bean：{}，方法：{}，参数：{}，耗时：{} 毫秒", beanName, methodName, params, times);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        SchedulingRunnable that = (SchedulingRunnable) o;
        if (params == null) {
            return beanName.equals(that.beanName) &&
                    methodName.equals(that.methodName) &&
                    that.params == null;
        }

        return beanName.equals(that.beanName) &&
                methodName.equals(that.methodName) &&
                params.equals(that.params);
    }

    @Override
    public int hashCode() {
        if (params == null) {
            return Objects.hash(beanName, methodName);
        }

        return Objects.hash(beanName, methodName, params);
    }
}

添加定时任务注册类，用来增加、删除定时任务。

@Component
public class CronTaskRegistrar implements DisposableBean {

    private final Map<Runnable, ScheduledTask> scheduledTasks = new ConcurrentHashMap<>(16);

    @Autowired
    private TaskScheduler taskScheduler;

    public TaskScheduler getScheduler() {
        return this.taskScheduler;
    }

    public void addCronTask(Runnable task, String cronExpression) {
        addCronTask(new CronTask(task, cronExpression));
    }

    public void addCronTask(CronTask cronTask) {
        if (cronTask != null) {
            Runnable task = cronTask.getRunnable();
            if (this.scheduledTasks.containsKey(task)) {
                removeCronTask(task);
            }

            this.scheduledTasks.put(task, scheduleCronTask(cronTask));
        }
    }

    public void removeCronTask(Runnable task) {
        ScheduledTask scheduledTask = this.scheduledTasks.remove(task);
        if (scheduledTask != null)
            scheduledTask.cancel();
    }

    public ScheduledTask scheduleCronTask(CronTask cronTask) {
        ScheduledTask scheduledTask = new ScheduledTask();
        scheduledTask.future = this.taskScheduler.schedule(cronTask.getRunnable(), cronTask.getTrigger());

        return scheduledTask;
    }


    @Override
    public void destroy() {
        for (ScheduledTask task : this.scheduledTasks.values()) {
            task.cancel();
        }

        this.scheduledTasks.clear();
    }
}

添加定时任务示例类

@Component("demoTask")
public class DemoTask {
    public void taskWithParams(String params) {
        System.out.println("执行有参示例任务：" + params);
    }

    public void taskNoParams() {
        System.out.println("执行无参示例任务");
    }
}

定时任务数据库表设计

添加定时任务实体类

public class SysJobPO {
    /**
     * 任务ID
     */
    private Integer jobId;
    /**
     * bean名称
     */
    private String beanName;
    /**
     * 方法名称
     */
    private String methodName;
    /**
     * 方法参数
     */
    private String methodParams;
    /**
     * cron表达式
     */
    private String cronExpression;
    /**
     * 状态（1正常 0暂停）
     */
    private Integer jobStatus;
    /**
     * 备注
     */
    private String remark;
    /**
     * 创建时间
     */
    private Date createTime;
    /**
     * 更新时间
     */
    private Date updateTime;

    public Integer getJobId() {
        return jobId;
    }

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

    public String getBeanName() {
        return beanName;
    }

    public void setBeanName(String beanName) {
        this.beanName = beanName;
    }

    public String getMethodName() {
        return methodName;
    }

    public void setMethodName(String methodName) {
        this.methodName = methodName;
    }

    public String getMethodParams() {
        return methodParams;
    }

    public void setMethodParams(String methodParams) {
        this.methodParams = methodParams;
    }

    public String getCronExpression() {
        return cronExpression;
    }

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

    public Integer getJobStatus() {
        return jobStatus;
    }

    public void setJobStatus(Integer jobStatus) {
        this.jobStatus = jobStatus;
    }

    public String getRemark() {
        return remark;
    }

    public void setRemark(String remark) {
        this.remark = remark;
    }

    public Date getCreateTime() {
        return createTime;
    }

    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }

    public Date getUpdateTime() {
        return updateTime;
    }

    public void setUpdateTime(Date updateTime) {
        this.updateTime = updateTime;
    }

}

新增定时任务

boolean success = sysJobRepository.addSysJob(sysJob);
if (!success)
    return OperationResUtils.fail("新增失败");
else {
    if (sysJob.getJobStatus().equals(SysJobStatus.NORMAL.ordinal())) {
        SchedulingRunnable task = new SchedulingRunnable(sysJob.getBeanName(), sysJob.getMethodName(), sysJob.getMethodParams());
        cronTaskRegistrar.addCronTask(task, sysJob.getCronExpression());
    }
}

return OperationResUtils.success();

修改定时任务，先移除原来的任务，再启动新任务

boolean success = sysJobRepository.editSysJob(sysJob);
if (!success)
    return OperationResUtils.fail("编辑失败");
else {
    //先移除再添加
    if (existedSysJob.getJobStatus().equals(SysJobStatus.NORMAL.ordinal())) {
        SchedulingRunnable task = new SchedulingRunnable(existedSysJob.getBeanName(), existedSysJob.getMethodName(), existedSysJob.getMethodParams());
        cronTaskRegistrar.removeCronTask(task);
    }

    if (sysJob.getJobStatus().equals(SysJobStatus.NORMAL.ordinal())) {
        SchedulingRunnable task = new SchedulingRunnable(sysJob.getBeanName(), sysJob.getMethodName(), sysJob.getMethodParams());
        cronTaskRegistrar.addCronTask(task, sysJob.getCronExpression());
    }
}

return OperationResUtils.success();

删除定时任务

boolean success = sysJobRepository.deleteSysJobById(req.getJobId());
if (!success)
    return OperationResUtils.fail("删除失败");
else{
    if (existedSysJob.getJobStatus().equals(SysJobStatus.NORMAL.ordinal())) {
        SchedulingRunnable task = new SchedulingRunnable(existedSysJob.getBeanName(), existedSysJob.getMethodName(), existedSysJob.getMethodParams());
        cronTaskRegistrar.removeCronTask(task);
    }
}

return OperationResUtils.success();

定时任务启动/停止状态切换

if (existedSysJob.getJobStatus().equals(SysJobStatus.NORMAL.ordinal())) {
    SchedulingRunnable task = new SchedulingRunnable(existedSysJob.getBeanName(), existedSysJob.getMethodName(), existedSysJob.getMethodParams());
    cronTaskRegistrar.addCronTask(task, existedSysJob.getCronExpression());
} else {
    SchedulingRunnable task = new SchedulingRunnable(existedSysJob.getBeanName(), existedSysJob.getMethodName(), existedSysJob.getMethodParams());
    cronTaskRegistrar.removeCronTask(task);
}

添加实现了CommandLineRunner接口的SysJobRunner类，当spring boot项目启动完成后，加载数据库里状态为正常的定时任务。

@Service
public class SysJobRunner implements CommandLineRunner {

    private static final Logger logger = LoggerFactory.getLogger(SysJobRunner.class);

    @Autowired
    private ISysJobRepository sysJobRepository;

    @Autowired
    private CronTaskRegistrar cronTaskRegistrar;

    @Override
    public void run(String... args) {
        // 初始加载数据库里状态为正常的定时任务
        List<SysJobPO> jobList = sysJobRepository.getSysJobListByStatus(SysJobStatus.NORMAL.ordinal());
        if (CollectionUtils.isNotEmpty(jobList)) {
            for (SysJobPO job : jobList) {
                SchedulingRunnable task = new SchedulingRunnable(job.getBeanName(), job.getMethodName(), job.getMethodParams());
                cronTaskRegistrar.addCronTask(task, job.getCronExpression());
            }

            logger.info("定时任务已加载完毕...");
        }
    }
}

工具类SpringContextUtils，用来从spring容器里获取bean

@Component
public class SpringContextUtils implements ApplicationContextAware {

    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext)
            throws BeansException {
        SpringContextUtils.applicationContext = applicationContext;
    }

    public static Object getBean(String name) {
        return applicationContext.getBean(name);
    }

    public static <T> T getBean(Class<T> requiredType) {
        return applicationContext.getBean(requiredType);
    }

    public static <T> T getBean(String name, Class<T> requiredType) {
        return applicationContext.getBean(name, requiredType);
    }

    public static boolean containsBean(String name) {
        return applicationContext.containsBean(name);
    }

    public static boolean isSingleton(String name) {
        return applicationContext.isSingleton(name);
    }

    public static Class<? extends Object> getType(String name) {
        return applicationContext.getType(name);
    }
}

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Quartz+Spring Boot实现动态管理定时任务

项目实践过程中碰到一个动态管理定时任务的需求：针对每个人员进行信息的定时更新，具体更新时间可随时调整、启动、暂定等。

思路

将每个人员信息的定时配置保存到数据库中，这样实现了任务的动态展示和管理。任务的每一次新增或变更，都会去数据库变更信息。

设置一个统一的任务管理器，专门负责动态任务的增删改查。

POM依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.example</groupId>
    <artifactId>dynamic-quartz</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>dynamic-quartz</name>
    <description>动态定时任务管理</description>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
       <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.1.1</version>
        </dependency>
        <!-- jdbc driver -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.44</version>
        </dependency>
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
            <version>2.3.0</version>
        </dependency>
    </dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>
</project>

application.yml

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/wujiwen
    username: root
    password: root
    driver-class-name: com.mysql.jdbc.Driver

  profiles:
      active: dev

logback-spring.xml

<configuration>
    <jmxConfigurator />
    <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
        <layout class="ch.qos.logback.classic.PatternLayout">
            <pattern>%date [%thread] %-5level %logger{80} - %msg%n</pattern>
        </layout>
    </appender>

    <logger name="org.springframework">
        <level value="ERROR" />
    </logger>
    <logger name="org.mybatis">
        <level value="ERROR" />
    </logger>
    <logger name="java.sql.Connection">
        <level value="DEBUG" />
    </logger>
    <logger name="java.sql.Statement">
        <level value="DEBUG" />
    </logger>
    <logger name="java.sql.PreparedStatement">
        <level value="DEBUG" />
    </logger>
    <logger name="java.sql.ResultSet">
        <level value="DEBUG"/>
    </logger>
    <logger name="org.apache.http">
        <level value="INFO" />
    </logger>
    <logger name="org.quartz">
        <level value="INFO" />
    </logger>

    <springProfile name="dev,test">
        <root>
            <level value="DEBUG" />
            <appender-ref ref="stdout" />
        </root>
    </springProfile>
</configuration>

CronEntity.java

保存在数据库中的表达式管理器.

package com.example.dynamicquartz.bean;

import java.io.Serializable;
import java.util.Date;

/**
 * created with IntelliJ IDEA.
 * packageName  : com.example.dynamicquartz.bean
 * author       : wujw
 * date         : 2018/9/9 16:23
 * version      : 1.0.0
 * description  : TODO
 */
public class CronEntity implements Serializable {
    private static final long serialVersionUID = -3406421161273529348L;

    private String id;

    private String userId; //用户标识

    private String cron; //表达式

    private String quarzName; //任务名称

    private String schedulerClass;//定时任务类

    private Date time;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    public String getCron() {
        return cron;
    }

    public void setCron(String cron) {
        this.cron = cron;
    }

    public String getQuarzName() {
        return quarzName;
    }

    public void setQuarzName(String quarzName) {
        this.quarzName = quarzName;
    }

    public String getSchedulerClass() {
        return schedulerClass;
    }

    public void setSchedulerClass(String schedulerClass) {
        this.schedulerClass = schedulerClass;
    }

    public Date getTime() {
        return time;
    }

    public void setTime(Date time) {
        this.time = time;
    }

    @Override
    public String toString() {
        return "CronEntity{" +
                "id=‘" + id + ‘‘‘ +
                ", userId=‘" + userId + ‘‘‘ +
                ", cron=‘" + cron + ‘‘‘ +
                ", quarzName=‘" + quarzName + ‘‘‘ +
                ", schedulerClass=‘" + schedulerClass + ‘‘‘ +
                ", time=" + time +
                ‘}‘;
    }
}

CronMapper

package com.example.dynamicquartz.dao;

import com.example.dynamicquartz.bean.CronEntity;
import org.apache.ibatis.annotations.*;

import java.util.List;

/**
 * created with IntelliJ IDEA.
 * packageName  : com.example.dynamicquartz
 * author       : wujw
 * date         : 2018/9/9 20:14
 * version      : 1.0.0
 * description  : TODO
 */
@Mapper
public interface CronMapper{

    @Select("select * from cron_table where id = #{id}")
    @Results({
            @Result(property = "id",  column = "id"),
            @Result(property = "userId", column = "user_id"),
            @Result(property = "cron", column = "cron"),
            @Result(property = "quarzName", column = "quarz_name"),
            @Result(property = "schedulerClass", column = "scheduler_class"),
            @Result(property = "time", column = "time")
    })
    CronEntity load(String id);

    @Insert("insert into cron_table(id,userId,cron,quartzName,schedulerClass,time)" +
            "values(#{id},#{user_id},#{cron},#{quartz_name},#{scheduler_class},#      {time})")
    void insert(CronEntity cronEntity);

    @Select("select * from cron_table")
    @Results({
            @Result(property = "id",  column = "id"),
            @Result(property = "userId", column = "user_id"),
            @Result(property = "cron", column = "cron"),
            @Result(property = "quarzName", column = "quarz_name"),
            @Result(property = "schedulerClass", column = "scheduler_class"),
            @Result(property = "time", column = "time")
    })
    List<CronEntity> queryAll();

    @Update("update cron_table set cron=#{1} where id =#{0}")
    void updateCron(String id,String cron);
}

ICronService

package com.example.dynamicquartz.serivce;

import com.example.dynamicquartz.bean.CronEntity;

import java.util.List;

/**
 * created with IntelliJ IDEA.
 * packageName  : com.example.dynamicquartz
 * author       : wujw
 * date         : 2018/9/9 19:54
 * version      : 1.0.0
 * description  : TODO
 */
public interface ICronService{

    void sendEmail(String quartzName);

    void sendSms(String quartzName);

    CronEntity findByCronId(String id );

    void update(CronEntity cronEntity);

    List<CronEntity> findAll();
}

CronServiceImpl

package com.example.dynamicquartz.serivce;

import com.example.dynamicquartz.bean.CronEntity;
import com.example.dynamicquartz.dao.CronMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * created with IntelliJ IDEA.
 * packageName  : com.example.dynamicquartz.serivce
 * author       : wujw
 * date         : 2018/9/9 19:55
 * version      : 1.0.0
 * description  : TODO
 */
@Service
public class CronServiceImpl implements ICronService{

    @Autowired
    private CronMapper cronMapper;

    @Override
    public void sendEmail(String quartzName) {
        System.out.println(quartzName +" 正在发送邮件");
    }

    @Override
    public void sendSms(String quartzName) {
        System.out.println(quartzName +"正在发送短信");
    }

    @Override
    public CronEntity findByCronId(String id) {
        return this.cronMapper.load(id);
    }

    @Override
    public void update(CronEntity cronEntity) {
        this.cronMapper.insert(cronEntity);
    }

    @Override
    public List<CronEntity> findAll() {
        return this.cronMapper.queryAll();
    }
}

QuartzManager

package com.example.dynamicquartz.serivce;

import com.example.dynamicquartz.bean.CronEntity;
import org.quartz.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;

import java.util.Date;

/**
 * created with IntelliJ IDEA.
 * packageName  : com.example.dynamicquartz
 * author       : wujw
 * date         : 2018/9/9 19:31
 * version      : 1.0.0
 * description  : TODO
 */
@Configuration
public class QuartzManager {

    @Autowired
    private Scheduler scheduler;

    @Autowired
    private ICronService iCronService;

    public void start(String id) throws SchedulerException {
       CronEntity cronEntity = iCronService.findByCronId(id);
       if(cronEntity!= null){
   startJob(scheduler,cronEntity.getQuarzName(),cronEntity.getCron(),cronEntity.getSchedulerClass());
       }
    }
    
    private void startJob(Scheduler scheduler,String name,String cron,String className) throws SchedulerException {
        // 通过JobBuilder构建JobDetail实例，JobDetail规定只能是实现Job接口的实例
        // JobDetail 是具体Job实例
        Class<Job> jobClass = null;
        try {
           //实例化具体的Job任务
           jobClass = (Class<Job>) Class.forName(className);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }

        JobDetail jobDetail = JobBuilder.newJob(jobClass).withIdentity(name, "group1").build();
        // 基于表达式构建触发器
        CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
        // CronTrigger表达式触发器 继承于Trigger
        // TriggerBuilder 用于构建触发器实例
        CronTrigger cronTrigger = TriggerBuilder.newTrigger().withIdentity(name, "group1")
                .withSchedule(cronScheduleBuilder).build();
        scheduler.scheduleJob(jobDetail, cronTrigger);
    }

    /**
     * 获取Job信息
     *
     * @param name
     * @param group
     * @return
     * @throws SchedulerException
     */
    public String getJobInfo(String name, String group) throws SchedulerException {
        TriggerKey triggerKey = new TriggerKey(name, group);
        CronTrigger cronTrigger = (CronTrigger) scheduler.getTrigger(triggerKey);
        return String.format("time:%s,state:%s", cronTrigger.getCronExpression(),
                scheduler.getTriggerState(triggerKey).name());
    }

    /**
     * 修改某个任务的执行时间
     *
     * @param name
     * @param group
     * @param time
     * @return
     * @throws SchedulerException
     */
    public boolean modifyJob(String name, String group, String time) throws SchedulerException {
        Date date = null;
        TriggerKey triggerKey = new TriggerKey(name, group);
        CronTrigger cronTrigger = (CronTrigger) scheduler.getTrigger(triggerKey);
        String oldTime = cronTrigger.getCronExpression();
        if (!oldTime.equalsIgnoreCase(time)) {
            CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(time);
            CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(name, group)
                    .withSchedule(cronScheduleBuilder).build();
            date = scheduler.rescheduleJob(triggerKey, trigger);
        }
        return date != null;
    }

    /**
     * 暂停所有任务
     *
     * @throws SchedulerException
     */
    public void pauseAllJob() throws SchedulerException {
        scheduler.pauseAll();
    }

    /**
     * 暂停某个任务
     *
     * @param name
     * @param group
     * @throws SchedulerException
     */
    public void pauseJob(String name, String group) throws SchedulerException {
        JobKey jobKey = new JobKey(name, group);
        JobDetail jobDetail = scheduler.getJobDetail(jobKey);
        if (jobDetail == null)
            return;
        scheduler.pauseJob(jobKey);
    }

    /**
     * 恢复所有任务
     *
     * @throws SchedulerException
     */
    public void resumeAllJob() throws SchedulerException {
        scheduler.resumeAll();
    }

    /**
     * 恢复某个任务
     *
     * @param name
     * @param group
     * @throws SchedulerException
     */
    public void resumeJob(String name, String group) throws SchedulerException {
        JobKey jobKey = new JobKey(name, group);
        JobDetail jobDetail = scheduler.getJobDetail(jobKey);
        if (jobDetail == null)
            return;
        scheduler.resumeJob(jobKey);
    }

    /**
     * 删除某个任务
     *
     * @param name
     * @param group
     * @throws SchedulerException
     */
    public void deleteJob(String name, String group) throws SchedulerException {
        JobKey jobKey = new JobKey(name, group);
        JobDetail jobDetail = scheduler.getJobDetail(jobKey);
        if (jobDetail == null)
            return;
        scheduler.deleteJob(jobKey);
    }
}

创建两个Task类，分别执行不同的任务

public class EmailTask implements Job {
    private Logger logger = LoggerFactory.getLogger(EmailTask.class);

    @Autowired
    private ICronService iCronService;


    @Override
    public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
        logger.info("EmailTask task start execute.");
        //模拟任务执行
        iCronService.sendEmail(jobExecutionContext.getJobDetail().getKey().getName());
    }
}

public class SmsTask implements Job {
    private Logger logger = LoggerFactory.getLogger(SmsTask.class);

    @Autowired
    private ICronService iCronService;


    @Override
    public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
        logger.info("SmsTask task start execute.");
        //模拟任务执行
        iCronService.sendSms(jobExecutionContext.getJobDetail().getKey().getName());
    }
}

SchedulerController

@RestController
@RequestMapping("/scheduler")
public class SchedulerController{
    @Autowired
    QuartzManager quartzManager;

    @RequestMapping(value = "/start", method = RequestMethod.GET)
     @ResponseBody
    public String start(@RequestParam(name = "id", defaultValue = "") String id) {
        try {
            quartzManager.start(id);
        } catch (SchedulerException e) {
            e.printStackTrace();
        }
        return "启动成功";
    }

}

cron_table.sql

CREATE TABLE `cron_table` (
  `id` varchar(11) collate utf8_bin NOT NULL,
  `user_id` varchar(11) collate utf8_bin default NULL,
  `cron` varchar(255) collate utf8_bin default NULL,
  `quarz_name` varchar(255) collate utf8_bin default NULL,
  `scheduler_class` varchar(255) collate utf8_bin default NULL,
  `time` datetime default NULL,
  PRIMARY KEY  (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin;

-- ----------------------------
-- Records of cron_table
-- ----------------------------
INSERT INTO `cron_table` VALUES (‘1‘, ‘AAA‘, ‘0/5 * * * * ?‘, ‘用户AAA‘, ‘com.example.dynamicquartz.job.SmsTask‘, ‘2018-09-06 20:26:55‘);
INSERT INTO `cron_table` VALUES (‘2‘, ‘BBB‘, ‘0/2 * * * * ?‘, ‘用户BBB‘, ‘com.example.dynamicquartz.job.EmailTask‘, ‘2018-09-09 21:02:08‘);

测试结果

http://localhost:8080/scheduler/start?id=1

http://localhost:8080/scheduler/start?id=2