Spring Boot Quartz 动态配置，持久化

Quartz 是一个很强大的任务调度框架在SpringBoot中也很容易集成

添加依赖:

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
        </dependency>
        <!--Quartz-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-quartz</artifactId>
        </dependency>

数据源:我们需要实现一个接口 org.quartz.utils.ConnectionProvider 里面的方法跟 数据库连接池的方法比较相似，Quartz会帮助我们注入各种属性

一般情况下来说可以使用Druid或者C3p0数据源，不过我们项目中之前已经集成过C3p0就不必再创建连接池直接通过反射获取连接池实例即可，如图:connnectionProvider就是我们需要的

贴出主要代码:

package cc.stdpain.xxx.component;
import lombok.Data;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.c3p0.internal.C3P0ConnectionProvider;
import org.hibernate.internal.NonContextualJdbcConnectionAccess;
import org.hibernate.internal.SessionImpl;
import org.quartz.utils.ConnectionProvider;

import java.lang.reflect.Field;
import java.sql.Connection;
import java.sql.SQLException;

@Data
public class QuartzC3p0ConnectionProvider implements ConnectionProvider {

    //这些属性都会被注入，不过我们项目中已经有现成的连接池

    //JDBC驱动
    public String driver;
    //JDBC连接串
    public String URL;
    //数据库用户名
    public String user;
    //数据库用户密码
    public String password;
    //数据库最大连接数
    public int maxConnections;
    //数据库SQL查询每次连接返回执行到连接池，以确保它仍然是有效的。
    public String validationQuery;

    private C3P0ConnectionProvider c3P0ConnectionProvider;

    public QuartzC3p0ConnectionProvider() {
        try {
            Field sessionFactorField = MySqlClient.class.getDeclaredField("sessionFactory");
            sessionFactorField.setAccessible(true);
            SessionFactory sessionFactory = (SessionFactory) sessionFactorField.get(MySqlClient.class);
            Session session = sessionFactory.openSession();
            SessionImpl session1 = (SessionImpl) session;
            NonContextualJdbcConnectionAccess connectionAccess = (NonContextualJdbcConnectionAccess) session1.getJdbcConnectionAccess();
            Field providerField = connectionAccess.getClass().getDeclaredField("connectionProvider");
            providerField.setAccessible(true);
            c3P0ConnectionProvider = (C3P0ConnectionProvider) providerField.get(connectionAccess);
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
            System.exit(-1);
        } catch (IllegalAccessException e) {
            e.printStackTrace();
            System.exit(-1);
        }
    }

    @Override
    public Connection getConnection() throws SQLException {
        return c3P0ConnectionProvider.getConnection();
    }

    @Override
    public void shutdown() throws SQLException {
        c3P0ConnectionProvider.stop();
    }

    @Override
    public void initialize() throws SQLException {
        //因为我们的连接池已经初始化过了就不用在初始化了
    }
}

application.properties 文件配置

#Quartz
org.quartz.scheduler.instanceName=MyScheduler
org.quartz.scheduler.instanceId=NON_CLUSTERED
org.quartz.scheduler.skip-update-check=false
org.quartz.scheduler.job-factory.class=org.quartz.simpl.SimpleJobFactory
## Quartz 线程池配置
org.quartz.threadPool.class=org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.threadCount=1
#持久化配置
org.quartz.jobStore.misfireThreshold=50000
org.quartz.jobStore.class=org.quartz.impl.jdbcjobstore.JobStoreTX
org.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.StdJDBCDelegate
org.quartz.jobStore.datasource=quartzDataSource
org.quartz.jobStore.is-clustered=true
org.quartz.jobStore.tablePrefix=QRTZ_
#数据源
#这个Provider就是自己实现的那个类
org.quartz.dataSource.quartzDataSource.connection-provider=cc.stdpain.xxx.component.QuartzC3p0ConnectionProvider
#因为我们用的是现成的数据源，这些属性不要也罢不过为了以后方便配置，还是写上比较好
org.quartz.dataSource.quartzDataSource.driver=com.mysql.cj.jdbc.Driver
org.quartz.dataSource.quartzDataSource.URL=jdbc:mysql://{ip}:45150/{database}?useSSL=false
org.quartz.dataSource.quartzDataSource.user=test_user
org.quartz.dataSource.quartzDataSource.password=test_passwd
org.quartz.dataSource.quartzDataSource.maxConnections=5
org.quartz.dataSource.quartzDataSource.validationQuery=select 0

Bean配置

@Configuration
public class QuartzConfig {

    @Autowired
    AppConfig appConfig;
    //因为数据源依赖MysqlClient中的SessionFactory
    @DependsOn("mysqlClient")
    @Bean
    public Scheduler scheduler() throws IOException, SchedulerException {
        SchedulerFactory schedulerFactory = new StdSchedulerFactory(quartzProperties());
        Scheduler scheduler = schedulerFactory.getScheduler();
        scheduler.start();
        return scheduler;
    }
    @Bean
    public Properties quartzProperties() throws IOException {
        Properties prop = new Properties();
        prop.put("quartz.scheduler.instanceName", appConfig.getQuartzSchedulerInstanceName());
        prop.put("org.quartz.scheduler.instanceId", appConfig.getQuartzSchedulerInstanceId());
        prop.put("org.quartz.scheduler.skipUpdateCheck", appConfig.getQuartzSchedulerSkipUpdateCheck());
        prop.put("org.quartz.scheduler.jobFactory.class", appConfig.getQuartzSchedulerJobFactoryClass());
        prop.put("org.quartz.jobStore.class", appConfig.getQuartzJobStoreClass());
        prop.put("org.quartz.jobStore.driverDelegateClass", appConfig.getQuartzJobStoreDriverDelegateClass());
        prop.put("org.quartz.jobStore.dataSource", appConfig.getQuartzJobStoreDatasource());
        prop.put("org.quartz.jobStore.tablePrefix", appConfig.getQuartzJobStoreTablePrefix());
        prop.put("org.quartz.jobStore.isClustered", appConfig.getQuartzJobStoreIsClustered());
        prop.put("org.quartz.threadPool.class", appConfig.getQuartzThreadPoolClass());
        prop.put("org.quartz.threadPool.threadCount", appConfig.getQuartzThreadPoolThreadCount());
        prop.put("org.quartz.dataSource.quartzDataSource.connectionProvider.class", appConfig.getQuartzDataSourceQuartzDataSourceConnectionProvider());
        prop.put("org.quartz.dataSource.quartzDataSource.driver", appConfig.getQuartzDatasourceQuartzDataSourceDriver());
        prop.put("org.quartz.dataSource.quartzDataSource.URL", appConfig.getQuartzDatasourceQuartzDataSourceUrl());
        prop.put("org.quartz.dataSource.quartzDataSource.user", appConfig.getQuartzDatasourceQuartzDataSourceUser());
        prop.put("org.quartz.dataSource.quartzDataSource.password", appConfig.getQuartzDatasourceQuartzDataSourcePassword());
        prop.put("org.quartz.dataSource.quartzDataSource.maxConnections", appConfig.getQuartzDatasourceQuartzDataSourceMaxConnections());

        return prop;
    }
}

数据库表结构

-- 如果不支持外键 使用 init2.sql
DROP TABLE IF EXISTS QRTZ_FIRED_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_PAUSED_TRIGGER_GRPS;
DROP TABLE IF EXISTS QRTZ_SCHEDULER_STATE;
DROP TABLE IF EXISTS QRTZ_LOCKS;
DROP TABLE IF EXISTS QRTZ_SIMPLE_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_SIMPROP_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_CRON_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_BLOB_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_JOB_DETAILS;
DROP TABLE IF EXISTS QRTZ_CALENDARS;

CREATE TABLE QRTZ_JOB_DETAILS(
  SCHED_NAME VARCHAR(120) NOT NULL,
  JOB_NAME VARCHAR(200) NOT NULL,
  JOB_GROUP VARCHAR(200) NOT NULL,
  DESCRIPTION VARCHAR(250) NULL,
  JOB_CLASS_NAME VARCHAR(250) NOT NULL,
  IS_DURABLE VARCHAR(1) NOT NULL,
  IS_NONCONCURRENT VARCHAR(1) NOT NULL,
  IS_UPDATE_DATA VARCHAR(1) NOT NULL,
  REQUESTS_RECOVERY VARCHAR(1) NOT NULL,
  JOB_DATA BLOB NULL,
  PRIMARY KEY (SCHED_NAME,JOB_NAME,JOB_GROUP))
  ENGINE=InnoDB;

CREATE TABLE QRTZ_TRIGGERS (
  SCHED_NAME VARCHAR(120) NOT NULL,
  TRIGGER_NAME VARCHAR(200) NOT NULL,
  TRIGGER_GROUP VARCHAR(200) NOT NULL,
  JOB_NAME VARCHAR(200) NOT NULL,
  JOB_GROUP VARCHAR(200) NOT NULL,
  DESCRIPTION VARCHAR(250) NULL,
  NEXT_FIRE_TIME BIGINT(13) NULL,
  PREV_FIRE_TIME BIGINT(13) NULL,
  PRIORITY INTEGER NULL,
  TRIGGER_STATE VARCHAR(16) NOT NULL,
  TRIGGER_TYPE VARCHAR(8) NOT NULL,
  START_TIME BIGINT(13) NOT NULL,
  END_TIME BIGINT(13) NULL,
  CALENDAR_NAME VARCHAR(200) NULL,
  MISFIRE_INSTR SMALLINT(2) NULL,
  JOB_DATA BLOB NULL,
  PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
  FOREIGN KEY (SCHED_NAME,JOB_NAME,JOB_GROUP)
  REFERENCES QRTZ_JOB_DETAILS(SCHED_NAME,JOB_NAME,JOB_GROUP))
  ENGINE=InnoDB;

CREATE TABLE QRTZ_SIMPLE_TRIGGERS (
  SCHED_NAME VARCHAR(120) NOT NULL,
  TRIGGER_NAME VARCHAR(200) NOT NULL,
  TRIGGER_GROUP VARCHAR(200) NOT NULL,
  REPEAT_COUNT BIGINT(7) NOT NULL,
  REPEAT_INTERVAL BIGINT(12) NOT NULL,
  TIMES_TRIGGERED BIGINT(10) NOT NULL,
  PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
  FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
  REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
  ENGINE=InnoDB;

CREATE TABLE QRTZ_CRON_TRIGGERS (
  SCHED_NAME VARCHAR(120) NOT NULL,
  TRIGGER_NAME VARCHAR(200) NOT NULL,
  TRIGGER_GROUP VARCHAR(200) NOT NULL,
  CRON_EXPRESSION VARCHAR(120) NOT NULL,
  TIME_ZONE_ID VARCHAR(80),
  PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
  FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
  REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
  ENGINE=InnoDB;

CREATE TABLE QRTZ_SIMPROP_TRIGGERS
(
  SCHED_NAME VARCHAR(120) NOT NULL,
  TRIGGER_NAME VARCHAR(200) NOT NULL,
  TRIGGER_GROUP VARCHAR(200) NOT NULL,
  STR_PROP_1 VARCHAR(512) NULL,
  STR_PROP_2 VARCHAR(512) NULL,
  STR_PROP_3 VARCHAR(512) NULL,
  INT_PROP_1 INT NULL,
  INT_PROP_2 INT NULL,
  LONG_PROP_1 BIGINT NULL,
  LONG_PROP_2 BIGINT NULL,
  DEC_PROP_1 NUMERIC(13,4) NULL,
  DEC_PROP_2 NUMERIC(13,4) NULL,
  BOOL_PROP_1 VARCHAR(1) NULL,
  BOOL_PROP_2 VARCHAR(1) NULL,
  PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
  FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
  REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
  ENGINE=InnoDB;

CREATE TABLE QRTZ_BLOB_TRIGGERS (
  SCHED_NAME VARCHAR(120) NOT NULL,
  TRIGGER_NAME VARCHAR(200) NOT NULL,
  TRIGGER_GROUP VARCHAR(200) NOT NULL,
  BLOB_DATA BLOB NULL,
  PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
  INDEX (SCHED_NAME,TRIGGER_NAME, TRIGGER_GROUP),
  FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
  REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
  ENGINE=InnoDB;

CREATE TABLE QRTZ_CALENDARS (
  SCHED_NAME VARCHAR(120) NOT NULL,
  CALENDAR_NAME VARCHAR(200) NOT NULL,
  CALENDAR BLOB NOT NULL,
  PRIMARY KEY (SCHED_NAME,CALENDAR_NAME))
  ENGINE=InnoDB;

CREATE TABLE QRTZ_PAUSED_TRIGGER_GRPS (
  SCHED_NAME VARCHAR(120) NOT NULL,
  TRIGGER_GROUP VARCHAR(200) NOT NULL,
  PRIMARY KEY (SCHED_NAME,TRIGGER_GROUP))
  ENGINE=InnoDB;

CREATE TABLE QRTZ_FIRED_TRIGGERS (
  SCHED_NAME VARCHAR(120) NOT NULL,
  ENTRY_ID VARCHAR(95) NOT NULL,
  TRIGGER_NAME VARCHAR(200) NOT NULL,
  TRIGGER_GROUP VARCHAR(200) NOT NULL,
  INSTANCE_NAME VARCHAR(200) NOT NULL,
  FIRED_TIME BIGINT(13) NOT NULL,
  SCHED_TIME BIGINT(13) NOT NULL,
  PRIORITY INTEGER NOT NULL,
  STATE VARCHAR(16) NOT NULL,
  JOB_NAME VARCHAR(200) NULL,
  JOB_GROUP VARCHAR(200) NULL,
  IS_NONCONCURRENT VARCHAR(1) NULL,
  REQUESTS_RECOVERY VARCHAR(1) NULL,
  PRIMARY KEY (SCHED_NAME,ENTRY_ID))
  ENGINE=InnoDB;

CREATE TABLE QRTZ_SCHEDULER_STATE (
  SCHED_NAME VARCHAR(120) NOT NULL,
  INSTANCE_NAME VARCHAR(200) NOT NULL,
  LAST_CHECKIN_TIME BIGINT(13) NOT NULL,
  CHECKIN_INTERVAL BIGINT(13) NOT NULL,
  PRIMARY KEY (SCHED_NAME,INSTANCE_NAME))
  ENGINE=InnoDB;

CREATE TABLE QRTZ_LOCKS (
  SCHED_NAME VARCHAR(120) NOT NULL,
  LOCK_NAME VARCHAR(40) NOT NULL,
  PRIMARY KEY (SCHED_NAME,LOCK_NAME))
  ENGINE=InnoDB;

CREATE INDEX IDX_QRTZ_J_REQ_RECOVERY ON QRTZ_JOB_DETAILS(SCHED_NAME,REQUESTS_RECOVERY);
CREATE INDEX IDX_QRTZ_J_GRP ON QRTZ_JOB_DETAILS(SCHED_NAME,JOB_GROUP);

CREATE INDEX IDX_QRTZ_T_J ON QRTZ_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_T_JG ON QRTZ_TRIGGERS(SCHED_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_T_C ON QRTZ_TRIGGERS(SCHED_NAME,CALENDAR_NAME);
CREATE INDEX IDX_QRTZ_T_G ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP);
CREATE INDEX IDX_QRTZ_T_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_N_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_N_G_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_NEXT_FIRE_TIME ON QRTZ_TRIGGERS(SCHED_NAME,NEXT_FIRE_TIME);
CREATE INDEX IDX_QRTZ_T_NFT_ST ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE,NEXT_FIRE_TIME);
CREATE INDEX IDX_QRTZ_T_NFT_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME);
CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE_GRP ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_GROUP,TRIGGER_STATE);

CREATE INDEX IDX_QRTZ_FT_TRIG_INST_NAME ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME);
CREATE INDEX IDX_QRTZ_FT_INST_JOB_REQ_RCVRY ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME,REQUESTS_RECOVERY);
CREATE INDEX IDX_QRTZ_FT_J_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_FT_JG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_FT_T_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP);
CREATE INDEX IDX_QRTZ_FT_TG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_GROUP);

commit;

我们任务的实体类

@Data
public class TaskEntity implements Serializable {
    private final Long serialVersion = -12654128415L;
    private Long id; //ID
    private String jobName; //任务名称
    private String jobGroup; //任务分组
    private String jobStatus; //任务状态
    private String jobClass;//任务执行方法
    private String cronExpression; // cron 表达式
    private String jobDescription; //任务描述
    private String timeZoneId; // 时区
    private Long startTime;
    private Long endTime;
    private String state; //状态
    private String invokeParam;//调用参数
}

添加任务的话 只需要指定 jobName jobGroup jobClass cronExpression jobDescription invokeParam

@Slf4j
@Service
public class TaskService implements ITaskService {

    @Autowired
    private Scheduler scheduler;

    @Override
    public void addTask(TaskEntity taskEntity) {
        String jobName = taskEntity.getJobName(),
                jobGroup = taskEntity.getJobGroup(),
                cronExpression = taskEntity.getCronExpression(),
                jobDescription = taskEntity.getJobDescription();
        String invokeParams = taskEntity.getInvokeParam();
        try {
            if (checkExists(jobName, jobGroup)) {
                //error
            }
            TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);
            JobKey jobKey = JobKey.jobKey(jobName, jobGroup);

            CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cronExpression).withMisfireHandlingInstructionDoNothing();
            CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(triggerKey).
                    withDescription(jobDescription).withSchedule(scheduleBuilder).build();

            trigger.getJobDataMap().put("invokeParam", invokeParams);

            Class<? extends Job> clazz = (Class<? extends Job>) Class.forName(taskEntity.getJobClass());
            JobDetail jobDetail = JobBuilder.newJob(clazz).withIdentity(jobKey).withDescription(jobDescription).build();
            scheduler.scheduleJob(jobDetail, trigger);
        } catch (SchedulerException | ClassNotFoundException e) {
            log.error("", e);
        }
    }

    @Override
    public void resumeTask(TaskEntity taskEntity) {
        try {
            scheduler.resumeJob(JobKey.jobKey(taskEntity.getJobName(), taskEntity.getJobGroup()));
        } catch (Exception e) {
            log.error("", e);
        }
    }

    @Override
    public void updateTask(TaskEntity info) {
        String jobName = info.getJobName(),
                jobGroup = info.getJobGroup(),
                cronExpression = info.getCronExpression(),
                jobDescription = info.getJobDescription(),
                createTime = DateFormatUtils.format(new Date(), "yyyy-MM-dd HH:mm:ss");
        try {
            if (!checkExists(jobName, jobGroup)) {
                //Error
            }
            TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);
            JobKey jobKey = new JobKey(jobName, jobGroup);
            CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(cronExpression).withMisfireHandlingInstructionDoNothing();
            CronTrigger cronTrigger = TriggerBuilder.newTrigger().withIdentity(triggerKey).withDescription(createTime).withSchedule(cronScheduleBuilder).build();

            JobDetail jobDetail = scheduler.getJobDetail(jobKey);
            jobDetail.getJobBuilder().withDescription(jobDescription);
            Set<Trigger> triggerSet = new HashSet<>();
            triggerSet.add(cronTrigger);

            scheduler.scheduleJob(jobDetail, triggerSet, true);
        } catch (SchedulerException e) {
            log.error("", e);
        }
    }

    @Override
    public void pauseTask(TaskEntity taskEntity) {
        TriggerKey triggerKey = TriggerKey.triggerKey(taskEntity.getJobName(), taskEntity.getJobGroup());
        try {
            if (checkExists(taskEntity.getJobName(), taskEntity.getJobGroup())) {
                scheduler.pauseTrigger(triggerKey); //停止触发器
            }
        } catch (Exception e) {
            log.error("", e);
        }
    }

    @Override
    public void deleteTask(TaskEntity taskEntity) {
        TriggerKey triggerKey = TriggerKey.triggerKey(taskEntity.getJobName(), taskEntity.getJobGroup());
        try {
            if (checkExists(taskEntity.getJobName(), taskEntity.getJobGroup())) {
                scheduler.pauseTrigger(triggerKey); //停止触发器
                scheduler.unscheduleJob(triggerKey); //移除触发器
            }
        } catch (SchedulerException e) {
            log.error("", e);
        }
    }

    private boolean checkExists(String jobName, String jobGroup) throws SchedulerException {
        TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);
        return scheduler.checkExists(triggerKey);
    }
}

任务状态查询

        SELECT
        QRTZ_JOB_DETAILS.JOB_NAME AS jobName,
        QRTZ_JOB_DETAILS.JOB_GROUP AS jobGroup,
        QRTZ_JOB_DETAILS.JOB_CLASS_NAME AS jobClass,
        QRTZ_TRIGGERS.DESCRIPTION AS jobDescription,
        QRTZ_TRIGGERS.TRIGGER_NAME AS triggerName,
        QRTZ_TRIGGERS.TRIGGER_GROUP AS triggerGroup,
        QRTZ_CRON_TRIGGERS.CRON_EXPRESSION AS cronExpression,
        QRTZ_TRIGGERS.START_TIME AS startTime,
        QRTZ_TRIGGERS.END_TIME AS endTime,
        QRTZ_TRIGGERS.TRIGGER_STATE AS state,
        QRTZ_CRON_TRIGGERS.TIME_ZONE_ID AS timeZoneId
        FROM
        QRTZ_JOB_DETAILS
        JOIN QRTZ_TRIGGERS
        JOIN QRTZ_CRON_TRIGGERS ON QRTZ_JOB_DETAILS.JOB_NAME = QRTZ_TRIGGERS.JOB_NAME
        AND QRTZ_TRIGGERS.TRIGGER_NAME = QRTZ_CRON_TRIGGERS.TRIGGER_NAME
        AND QRTZ_TRIGGERS.TRIGGER_GROUP = QRTZ_CRON_TRIGGERS.TRIGGER_GROUP

不过这样创建出来的 Job 声明周期不被Spring管理，因此无法使用依赖注入等，如果需要依赖注入支持还需要一些其他操作

对Jobs实现依赖注入

首先我们需要一个Job的工厂

@Component
@Slf4j
public class JobFactory extends AdaptableJobFactory {
    @Autowired
    private AutowireCapableBeanFactory capableBeanFactory;

    @Override
    protected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {
        //调用父类的方法
        Object jobInstance = super.createJobInstance(bundle);
        //进行注入
        capableBeanFactory.autowireBean(jobInstance);
        return jobInstance;
    }
}

对Scheduler设置bean中的工厂

scheduler.setJobFactory(jobFactory);

然后创建Job的时候就可以依赖注入了

参考:https://yq.aliyun.com/articles/626199