Quartz入门 (五) JDBCStore

　　默认情况，Quartz的触发器，调度，任务等信息都是放在内存中的，叫做 RAMJobStore。 好处是快速，坏处是一旦系统重启，那么信息就丢失了，就得全部从头来过。
所以Quartz还提供了另一个方式，可以把这些信息存放在数据库做，叫做 JobStoreTX。

　　 好处是就算系统重启了，目前运行到第几次了这些信息都是存放在数据库中的，那么就可以继续原来的步伐把计划任务无缝地继续做下去。 坏处就是性能上比内存慢一些，毕竟数据库读取总是要慢一些的。

首先建表：

DROP DATABASE IF EXISTS quartz;
CREATE DATABASE quartz DEFAULT CHARACTER SET utf8;
USE quartz;

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(100) NOT NULL,
    JOB_GROUP VARCHAR(100) 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)
);

CREATE TABLE QRTZ_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(100) NOT NULL,
    TRIGGER_GROUP VARCHAR(100) NOT NULL,
    JOB_NAME  VARCHAR(100) NOT NULL,
    JOB_GROUP VARCHAR(100) 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(100) 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)
);

CREATE TABLE QRTZ_SIMPLE_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(100) NOT NULL,
    TRIGGER_GROUP VARCHAR(100) 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)
);

CREATE TABLE QRTZ_CRON_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(100) NOT NULL,
    TRIGGER_GROUP VARCHAR(100) NOT NULL,
    CRON_EXPRESSION VARCHAR(100) 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)
);

CREATE TABLE QRTZ_SIMPROP_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(100) NOT NULL,
    TRIGGER_GROUP VARCHAR(100) 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)
);

CREATE TABLE QRTZ_BLOB_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(100) NOT NULL,
    TRIGGER_GROUP VARCHAR(100) NOT NULL,
    BLOB_DATA BLOB 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)
);

CREATE TABLE QRTZ_CALENDARS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    CALENDAR_NAME  VARCHAR(100) NOT NULL,
    CALENDAR BLOB NOT NULL,
    PRIMARY KEY (SCHED_NAME,CALENDAR_NAME)
);

CREATE TABLE QRTZ_PAUSED_TRIGGER_GRPS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_GROUP  VARCHAR(100) NOT NULL,
    PRIMARY KEY (SCHED_NAME,TRIGGER_GROUP)
);

CREATE TABLE QRTZ_FIRED_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    ENTRY_ID VARCHAR(95) NOT NULL,
    TRIGGER_NAME VARCHAR(100) NOT NULL,
    TRIGGER_GROUP VARCHAR(100) NOT NULL,
    INSTANCE_NAME VARCHAR(100) 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(100) NULL,
    JOB_GROUP VARCHAR(100) NULL,
    IS_NONCONCURRENT VARCHAR(1) NULL,
    REQUESTS_RECOVERY VARCHAR(1) NULL,
    PRIMARY KEY (SCHED_NAME,ENTRY_ID)
);

CREATE TABLE QRTZ_SCHEDULER_STATE
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    INSTANCE_NAME VARCHAR(100) NOT NULL,
    LAST_CHECKIN_TIME BIGINT(13) NOT NULL,
    CHECKIN_INTERVAL BIGINT(13) NOT NULL,
    PRIMARY KEY (SCHED_NAME,INSTANCE_NAME)
);

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

commit;

配置文件：

quartz.properties

org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX
org.quartz.jobStore.tablePrefix = QRTZ_
org.quartz.scheduler.instanceName = MyScheduler
org.quartz.threadPool.threadCount = 3

org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX
org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate
org.quartz.jobStore.tablePrefix = QRTZ_
org.quartz.jobStore.dataSource = mysqlDatabase

org.quartz.dataSource.mysqlDatabase.driver = com.mysql.jdbc.Driver
org.quartz.dataSource.mysqlDatabase.URL = jdbc:mysql://localhost:3306/quartz?characterEncoding=utf-8
org.quartz.dataSource.mysqlDatabase.user = root
org.quartz.dataSource.mysqlDatabase.password = 123456
org.quartz.dataSource.mysqlDatabase.maxConnections = 5

测试：

package com.lc.jdbcStore;

import com.lc.MailJob;
import org.quartz.*;
import org.quartz.impl.StdSchedulerFactory;
import static org.quartz.JobBuilder.newJob;
import static org.quartz.SimpleScheduleBuilder.simpleSchedule;
import static org.quartz.TriggerBuilder.newTrigger;

public class TestQuartz {
    public static void main(String[] args) throws Exception {
        try {
            assginNewJob();
        } catch (ObjectAlreadyExistsException e) {
            System.err.println("发现任务已经在数据库存在了，直接从数据库里运行:"+ e.getMessage());
            resumeJobFromDatabase();
        }
    }

    private static void resumeJobFromDatabase() throws Exception {
        Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
        scheduler.start();
        // 等待200秒，让前面的任务都执行完了之后，再关闭调度器
        Thread.sleep(200000);
        scheduler.shutdown(true);
    }

    private static void assginNewJob() throws SchedulerException, InterruptedException {
        // 创建调度器
        Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
        // 定义一个触发器
        Trigger trigger = newTrigger().withIdentity("trigger1", "group1") // 定义名称和所属的租
                .startNow()
                .withSchedule(simpleSchedule().withIntervalInSeconds(15) // 每隔15秒执行一次
                        .withRepeatCount(10)) // 总共执行11次(第一次执行不基数)
                .build();

        // 定义一个JobDetail
        JobDetail job = newJob(MailJob.class) // 指定干活的类MailJob
                .withIdentity("mailjob1", "mailgroup") // 定义任务名称和分组
                .usingJobData("email", "[email protected]") // 定义属性
                .build();

        // 调度加入这个job
        scheduler.scheduleJob(job, trigger);

        // 启动
        scheduler.start();

        // 等待20秒，让前面的任务都执行完了之后，再关闭调度器
        Thread.sleep(20000);
        scheduler.shutdown(true);
    }
}

原文地址：https://www.cnblogs.com/crazy-lc/p/12527228.html