quartz的使用(一)

1.quartz是什么？

Quartz 是一个完全由 Java 编写的开源作业调度框架，支持各种灵活的应用方式，并同时支持分布式和集群能力。2.quartz的基本要素

2.quartz的基本要素

Scheduler 代表一个调度容器 JobDetail 表示一个具体的可执行的调度程序
Trigger 代表一个调度参数的配置
Job 表示一个工作，要执行的具体内容

3.quartz结合springboot使用(maven工程)

3.1 引入包 pom文件

<!-- quartz及spring任务支持 -->
    <dependency>
        <groupId>org.quartz-scheduler</groupId>
        <artifactId>quartz</artifactId>
        <version>2.2.3</version>
    </dependency>
    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context-support</artifactId>
    <version>4.3.13.RELEASE</version>
    </dependency>
    <!-- 数据库驱动 -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jdbc</artifactId>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <!-- 使用HikariCP数据库连接池 -->
    <dependency>
        <groupId>com.zaxxer</groupId>
        <artifactId>HikariCP</artifactId>
    </dependency>
    <!-- 工具 -->
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
    </dependency>

3.2 先自定义一个类实现spring的QuartzJobBean并重写executeInternal，该类实现了Job类

@Slf4j
        public class MyJob extends QuartzJobBean {

            @Override
            public void executeInternal(JobExecutionContext context){
                log.info("线程【{}】开始执行，时间【{}】",Thread.currentThread().getName(),new Date());
            }
        }

3.3 创建JobDetail，Trigger

@Configuration
        public class JobDetailAndTriggerConfig {
            @Bean("myJobDetail")
            public JobDetailFactoryBean getJobDetail(){
                JobDetailFactoryBean jobDetailFactoryBean = new JobDetailFactoryBean();
                //Job的实现类类对象
                jobDetailFactoryBean.setJobClass(MyJob.class);
                //任务的名称，框架需要通过此名称进行关联，所以需要保证唯一性
                jobDetailFactoryBean.setName("myJob");
                //任务组，默认为“DEFAULT”，取值Scheduler.DEFAULT_GROUP
                jobDetailFactoryBean.setGroup("myJob Group");
                //任务描述信息，可以用来传递字符串参数，但是尽量不要这么干
                jobDetailFactoryBean.setDescription("myJob Description");
                //类似Map类，可以通过此类的对象向Job的execute方法中传递业务参数
                //jobDetailFactoryBean.setJobDataMap(null);
                //Job执行完后是否继续持久化到数据库，默认为false
                jobDetailFactoryBean.setDurability(true);
                return jobDetailFactoryBean;
            }
            @Bean("myJobTrigger")
            public CronTriggerFactoryBean getTrigger(@Qualifier("myJobDetail")JobDetail jobDetail){
                //使用cronTrigger
                CronTriggerFactoryBean triggerFactoryBean = new CronTriggerFactoryBean();
                //自定义的jobDetail对象
                triggerFactoryBean.setJobDetail(jobDetail);
                //触发器的名称
                triggerFactoryBean.setName("myJobTrigger");
                //触发器的任务组
                triggerFactoryBean.setGroup("myJobTrigger group");
                //触发器的描述信息
                triggerFactoryBean.setDescription("myJobTrigger description");
                //cron表达式
                triggerFactoryBean.setCronExpression("0/3 * * * * ?");
                //延迟时间
                triggerFactoryBean.setStartDelay(0);
                //设置misfire的任务策略;MISFIRE_INSTRUCTION_DO_NOTHING则不对misfire的任务做特殊处理，只从当前时间之后的下一次正常调度时间开始执行
                triggerFactoryBean.setMisfireInstruction(CronTrigger.MISFIRE_INSTRUCTION_DO_NOTHING);
                //类似Map类，可以通过此类的对象向Job的execute方法中传递业务参数
                //triggerFactoryBean.setJobDataMap(null);
                return triggerFactoryBean;
            }
        }

3.4 创建Scheduler 并注册JobDetail，Trigger,然后启动Scheduler

@Slf4j
        @Configuration
        public class QuartzSchedulerConfig {
            @Autowired
            private DataSource dataSource;
            @Bean
            public SchedulerFactoryBean schedulerFactoryBean(ApplicationContext applicationContext) {
                //创建调度器工厂
                SchedulerFactoryBean schedulerFactory = new SchedulerFactoryBean();
                //设置覆盖任务
                schedulerFactory.setOverwriteExistingJobs(true);
                schedulerFactory.setDataSource(dataSource);
                schedulerFactory.setSchedulerName("myTestScheduler");
                schedulerFactory.setConfigLocation(new ClassPathResource("quartz.properties"));
                Map<String, Trigger> triggers = applicationContext.getBeansOfType(Trigger.class);
                Collection<Trigger> triggerList = (null != triggers && !triggers.isEmpty()) ? triggers.values(): Collections.emptyList();
                schedulerFactory.setTriggers(triggerList.toArray(new Trigger[triggerList.size()]));
                //schedulerFactory.setJobFactory();不设置时使用默认的AdaptableJobFactory,可以自定义继承SpringBeanJobFactory
                // 并且要将createJobInstance()创建的实例交由spring自动注入这样才能在job执行方法中注入spring的其他实例,如使用@Service或其他注解的对象自动注入
                return schedulerFactory;
            }
        }

3.5 配置quartz配置文件及数据源文件

# 数据源相关配置
        spring:
          datasource:
            type: com.zaxxer.hikari.HikariDataSource
            driverClassName: com.mysql.jdbc.Driver
            url: jdbc:mysql://localhost:3306/mytest?tinyInt1isBit=false&useUnicode=true&characterEncoding=utf-8&autoReconnect=true&failOverReadOnly=false&zeroDateTimeBehavior=convertToNull
            username: root
            password: 123456
            hikari:
              connection-test-query: SELECT 1 FROM DUAL
              minimum-idle: 3
              maximum-pool-size: 24
              pool-name: ${spring.application.name}-CP
              idle-timeout: 10000
              leakDetectionThreshold: 2000

#quartz配置
        #调度标识名 集群中每一个实例都必须使用相同的名称 （区分特定的调度器实例）
        org.quartz.scheduler.instanceName=bpsp-service-job
        #ID设置为自动获取 每一个必须不同 （所有调度器实例中是唯一的）
        org.quartz.scheduler.instanceId=AUTO
        #线程数量
        org.quartz.threadPool.threadCount=5
        #数据保存方式为持久化 (也可以指定使用本地内存)
        org.quartz.jobStore.class=org.quartz.impl.jdbcjobstore.JobStoreTX
        #指定委托类
        org.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.StdJDBCDelegate
        #设置为TRUE不会出现序列化非字符串类到 BLOB 时产生的类版本问题
        org.quartz.jobStore.useProperties=true
        #容许的最大作业延长时间(超过该事件则为misfire)
        org.quartz.jobStore.misfireThreshold=60000
        #表的前缀
        org.quartz.jobStore.tablePrefix=qrtz_
        #加入集群 true 为集群 false不是集群
        org.quartz.jobStore.isClustered=true
        #调度实例失效的检查时间间隔
        org.quartz.jobStore.clusterCheckinInterval=20000
        #自带的管理组件plugin
        org.quartz.plugin.shutdownHook.class=org.quartz.plugins.management.ShutdownHookPlugin
        org.quartz.plugin.shutdownHook.cleanShutdown=TRUE
        org.quartz.plugin.triggHistory.class=org.quartz.plugins.history.LoggingTriggerHistoryPlugin
        org.quartz.plugin.jobHistory.class=org.quartz.plugins.history.LoggingJobHistoryPlugin
        #每次获取trigger时加锁(默认false)
        org.quartz.jobStore.acquireTriggersWithinLock=true

 4.运行结果

2019-06-06 17:41:45.030  INFO 7532 --- [eduler_Worker-4] com.example.springbootquartz.job.MyJob   : 线程【myTestScheduler_Worker-4】开始执行，时间【Thu Jun 06 17:41:45 CST 2019】
2019-06-06 17:41:45.030  INFO 7532 --- [eduler_Worker-4] o.q.p.history.LoggingJobHistoryPlugin    : Job myJob Group.myJob execution complete at  17:41:45 06/06/2019 and reports: null
2019-06-06 17:41:45.042  INFO 7532 --- [eduler_Worker-4] o.q.p.h.LoggingTriggerHistoryPlugin      : Trigger myJobTrigger group.myJobTrigger completed firing job myJob Group.myJob at  17:41:45 06/06/2019 with resulting trigger instruction code: DO NOTHING
2019-06-06 17:41:48.026  INFO 7532 --- [eduler_Worker-5] o.q.p.h.LoggingTriggerHistoryPlugin      : Trigger myJobTrigger group.myJobTrigger fired job myJob Group.myJob at:  17:41:48 06/06/2019
2019-06-06 17:41:48.026  INFO 7532 --- [eduler_Worker-5] o.q.p.history.LoggingJobHistoryPlugin    : Job myJob Group.myJob fired (by trigger myJobTrigger group.myJobTrigger) at:  17:41:48 06/06/2019
2019-06-06 17:41:48.026  INFO 7532 --- [eduler_Worker-5] com.example.springbootquartz.job.MyJob   : 线程【myTestScheduler_Worker-5】开始执行，时间【Thu Jun 06 17:41:48 CST 2019】
2019-06-06 17:41:48.026  INFO 7532 --- [eduler_Worker-5] o.q.p.history.LoggingJobHistoryPlugin    : Job myJob Group.myJob execution complete at  17:41:48 06/06/2019 and reports: null
2019-06-06 17:41:48.026  INFO 7532 --- [eduler_Worker-5] o.q.p.h.LoggingTriggerHistoryPlugin      : Trigger myJobTrigger group.myJobTrigger completed firing job myJob Group.myJob at  17:41:48 06/06/2019 with resulting trigger instruction code: DO NOTHING
2019-06-06 17:41:51.035  INFO 7532 --- [eduler_Worker-1] o.q.p.h.LoggingTriggerHistoryPlugin      : Trigger myJobTrigger group.myJobTrigger fired job myJob Group.myJob at:  17:41:51 06/06/2019
2019-06-06 17:41:51.036  INFO 7532 --- [eduler_Worker-1] o.q.p.history.LoggingJobHistoryPlugin    : Job myJob Group.myJob fired (by trigger myJobTrigger group.myJobTrigger) at:  17:41:51 06/06/2019
2019-06-06 17:41:51.036  INFO 7532 --- [eduler_Worker-1] com.example.springbootquartz.job.MyJob   : 线程【myTestScheduler_Worker-1】开始执行，时间【Thu Jun 06 17:41:51 CST 2019】
2019-06-06 17:41:51.036  INFO 7532 --- [eduler_Worker-1] o.q.p.history.LoggingJobHistoryPlugin    : Job myJob Group.myJob execution complete at  17:41:51 06/06/2019 and reports: null