前言:
现时兄弟们对“mysql整点”大体比较看重,看官们都需要分析一些“mysql整点”的相关内容。那么小编也在网摘上汇集了一些关于“mysql整点””的相关内容,希望各位老铁们能喜欢,朋友们一起来学习一下吧!作者 | 四叶草的诗雨
来源 | urlify.cn/uiuuUj
一、基本概念
Quartz核心的概念:scheduler任务调度、Job任务、Trigger触发器、JobDetail任务细节。
scheduler任务调度:
是最核心的概念,需要把JobDetail和Trigger注册到scheduler中,才可以执行。
Job任务:
其实Job是接口,其中只有一个execute方法:
Trigger触发器
a)作用:它是来执行工作任务,在什么条件下触发,什么时间执行,多久执行一次。
b)四大类型:SimpleTrigger,CronTirgger,DateIntervalTrigger, 和 NthIncludedDayTrigger。
SimpleTrigger 一般用于实现每隔一定时间执行任务,以及重复多少次,如每 2 小时执行一次,重复执行 5 次。SimpleTrigger 内部实现机制是通过计算间隔时间来计算下次的执行时间,这就导致其不适合调度定时的任务。例如我们想每天的 1:00AM 执行任务,如果使用 SimpleTrigger 的话间隔时间就是一天。注意这里就会有一个问题,即当有 misfired 的任务并且恢复执行时,该执行时间是随机的(取决于何时执行 misfired 的任务,例如某天的 3:00PM)。这会导致之后每天的执行时间都会变成 3:00PM,而不是我们原来期望的 1:00AM。
CronTirgger 类似于 LINUX 上的任务调度命令 crontab,即利用一个包含 7 个字段的表达式来表示时间调度方式。例如,"0 15 10 * * ? *" 表示每天的 10:15AM 执行任务。对于涉及到星期和月份的调度,CronTirgger 是最适合的,甚至某些情况下是唯一选择。例如,"0 10 14 ? 3 WED" 表示三月份的每个星期三的下午 14:10PM 执行任务。读者可以在具体用到该 trigger 时再详细了解每个字段的含义。
二、详细实现案例
1、首先要在mysql里面建一个数据库,这里起名:quartz_test,并导入以下sql内容
以下的sql为实现quartz集群必须要的表,quartz集群就是通过共享一个数据库来实现的,不像redis那样的集群,节点与节点需要通信;quartz集群的节点之间是不需要通信的。
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;
2、创建maven项目,完整的工程结构如下图
3、引入springboot和quartz的依赖
<?xml version="1.0" encoding="UTF-8"?><project xmlns="; xmlns:xsi="; xsi:schemaLocation=";;> <modelVersion>4.0.0</modelVersion> <groupId>com.springquartz.demo</groupId> <artifactId>spring-quartz</artifactId> <version>1.0-SNAPSHOT</version> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.1.RELEASE</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>4.3.1.RELEASE</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.25</version> </dependency> <!--spring quartz依赖--> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz</artifactId> <version>2.2.3</version> </dependency> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz-jobs</artifactId> <version>2.2.3</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>3.2.3.RELEASE</version> </dependency> </dependencies></project>
注意:以上的依赖一个都不能少,少一个都运行不起来
4、添加application.yml(不是必须的),quartz.properties文件(必须要的)
application.yml
server: port: 8084 context-path: /spring-quartz
quartz.properties
# Default Properties file for use by StdSchedulerFactory# to create a Quartz Scheduler Instance, if a different# properties file is not explicitly specified.##默认或是自己改名字都行org.quartz.scheduler.instanceName: DefaultQuartzScheduler#如果使用集群,instanceId必须唯一,设置成AUTOorg.quartz.scheduler.instanceId = AUTOorg.quartz.scheduler.rmi.export: falseorg.quartz.scheduler.rmi.proxy: falseorg.quartz.scheduler.wrapJobExecutionInUserTransaction: falseorg.quartz.threadPool.class: org.quartz.simpl.SimpleThreadPoolorg.quartz.threadPool.threadCount: 10org.quartz.threadPool.threadPriority: 5org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread: trueorg.quartz.jobStore.misfireThreshold: 60000#============================================================================# Configure JobStore#============================================================================##org.quartz.jobStore.class: org.quartz.simpl.RAMJobStore#存储方式使用JobStoreTX,也就是数据库org.quartz.jobStore.class:org.quartz.impl.jdbcjobstore.JobStoreTXorg.quartz.jobStore.driverDelegateClass:org.quartz.impl.jdbcjobstore.StdJDBCDelegate#使用自己的配置文件org.quartz.jobStore.useProperties:true#数据库中quartz表的表名前缀org.quartz.jobStore.tablePrefix:QRTZ_org.quartz.jobStore.dataSource:qzDS#是否使用集群(如果项目只部署到 一台服务器,就不用了)org.quartz.jobStore.isClustered = true#============================================================================# Configure Datasources#============================================================================#配置数据源org.quartz.dataSource.qzDS.driver:com.mysql.jdbc.Driverorg.quartz.dataSource.qzDS.URL:jdbc:mysql://172.16.0.151:3306/quartz_test?useUnicode=true&characterEncoding=utf8org.quartz.dataSource.qzDS.user:rootorg.quartz.dataSource.qzDS.password:huacloudhuacloudorg.quartz.dataSource.qzDS.validationQuery=select 0 from dual
注意:如果部署的是quartz集群,必须加上以上红色加粗的部分,如果只是单节点quartz可以不用加。
5、添加springboot启动类
package com.springquartz;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.context.annotation.ComponentScan;/** * @author hzb * @date 2018/08/18 */@SpringBootApplication@ComponentScan(basePackages = { "com.springquartz" })public class Application { public static void main(String[] args) throws Exception { SpringApplication.run(Application.class, args); }}
6、创建job 实例工厂,解决spring注入问题,如果使用默认会导致spring的@Autowired 无法注入问题(很重要)
package com.springquartz.factory;import org.quartz.spi.TriggerFiredBundle;import org.springframework.beans.factory.config.AutowireCapableBeanFactory;import org.springframework.context.ApplicationContext;import org.springframework.context.ApplicationContextAware;import org.springframework.scheduling.quartz.SpringBeanJobFactory;import org.springframework.stereotype.Component;@Componentpublic class MyJobFactory extends SpringBeanJobFactory implements ApplicationContextAware { private transient AutowireCapableBeanFactory beanFactory; @Override public void setApplicationContext(final ApplicationContext context) { beanFactory = context.getAutowireCapableBeanFactory(); } @Override protected Object createJobInstance(final TriggerFiredBundle bundle) throws Exception { final Object job = super.createJobInstance(bundle); beanFactory.autowireBean(job); return job; }}
7、quartz的初始化配置
package com.springquartz.config;import com.springquartz.factory.MyJobFactory;import org.quartz.Scheduler;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.config.PropertiesFactoryBean;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.core.io.ClassPathResource;import org.springframework.scheduling.quartz.SchedulerFactoryBean;import java.io.IOException;import java.util.Properties;/** * @author hzb * @date 2018/08/28 */@Configurationpublic class SchedulerConfiguration { @Autowired private MyJobFactory myJobFactory; @Bean(name = "schedulerFactoryBean") public SchedulerFactoryBean schedulerFactoryBean() throws IOException { //获取配置属性 PropertiesFactoryBean propertiesFactoryBean = new PropertiesFactoryBean(); propertiesFactoryBean.setLocation(new ClassPathResource("quartz.properties")); //在quartz.properties中的属性被读取并注入后再初始化对象 propertiesFactoryBean.afterPropertiesSet(); //创建SchedulerFactoryBean SchedulerFactoryBean factory = new SchedulerFactoryBean(); Properties pro = propertiesFactoryBean.getObject(); factory.setOverwriteExistingJobs(true); factory.setAutoStartup(true); factory.setQuartzProperties(pro); factory.setJobFactory(myJobFactory); return factory; }}
8、新建service接口和实现类
package com.springquartz.service;/** * @author hzb * @date 2018/08/28 */public interface JobService { /** * 添加一个定时任务 * @param jobName * @param jobGroup */ void addCronJob(String jobName, String jobGroup); /** * 添加异步任务 * @param jobName * @param jobGroup */ void addAsyncJob(String jobName, String jobGroup); /** * 暂停任务 * @param jobName * @param jobGroup */ void pauseJob(String jobName, String jobGroup); /** * 恢复任务 * @param triggerName * @param triggerGroup */ void resumeJob(String triggerName, String triggerGroup); /** * 删除job * @param jobName * @param jobGroup */ void deleteJob(String jobName, String jobGroup);}
package com.springquartz.service;import com.springquartz.job.AsyncJob;import com.springquartz.job.CronJob;import org.quartz.CronScheduleBuilder;import org.quartz.CronTrigger;import org.quartz.JobBuilder;import org.quartz.JobDataMap;import org.quartz.JobDetail;import org.quartz.JobKey;import org.quartz.Scheduler;import org.quartz.SchedulerException;import org.quartz.Trigger;import org.quartz.TriggerBuilder;import org.quartz.TriggerKey;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.scheduling.quartz.SchedulerFactoryBean;import org.springframework.stereotype.Service;import static org.quartz.SimpleScheduleBuilder.simpleSchedule;/** * @author hzb * @date 2018/08/28 */@Servicepublic class JobServiceImpl implements JobService { @SuppressWarnings("SpringJavaInjectionPointsAutowiringInspection") @Autowired private SchedulerFactoryBean schedulerFactoryBean; /** * 创建一个定时任务 * * @param jobName * @param jobGroup */ @Override public void addCronJob(String jobName, String jobGroup) { try { Scheduler scheduler = schedulerFactoryBean.getScheduler(); JobKey jobKey = JobKey.jobKey(jobName, jobGroup); JobDetail jobDetail = scheduler.getJobDetail(jobKey); if (jobDetail != null) { System.out.println("job:" + jobName + " 已存在"); } else { //构建job信息 jobDetail = JobBuilder.newJob(CronJob.class).withIdentity(jobName, jobGroup).build(); //用JopDataMap来传递数据 jobDetail.getJobDataMap().put("taskData", "hzb-cron-001"); //表达式调度构建器(即任务执行的时间,每5秒执行一次) CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule("*/5 * * * * ?"); //按新的cronExpression表达式构建一个新的trigger CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(jobName + "_trigger", jobGroup + "_trigger") .withSchedule(scheduleBuilder).build(); scheduler.scheduleJob(jobDetail, trigger); } } catch (Exception e) { e.printStackTrace(); } } @Override public void addAsyncJob(String jobName, String jobGroup) { try { Scheduler scheduler = schedulerFactoryBean.getScheduler(); JobKey jobKey = JobKey.jobKey(jobName, jobGroup); JobDetail jobDetail = scheduler.getJobDetail(jobKey); if (jobDetail != null) { System.out.println("job:" + jobName + " 已存在"); } else { //构建job信息,在用JobBuilder创建JobDetail的时候,有一个storeDurably()方法,可以在没有触发器指向任务的时候,将任务保存在队列中了。然后就能手动触发了 jobDetail = JobBuilder.newJob(AsyncJob.class).withIdentity(jobName, jobGroup).storeDurably().build(); jobDetail.getJobDataMap().put("asyncData","this is a async task"); Trigger trigger = TriggerBuilder.newTrigger().withIdentity(jobName + "_trigger", jobGroup + "_trigger") //定义name/group .startNow()//一旦加入scheduler,立即生效 .withSchedule(simpleSchedule())//使用SimpleTrigger .build(); scheduler.scheduleJob(jobDetail, trigger); } } catch (Exception e) { e.printStackTrace(); } } @Override public void pauseJob(String jobName, String jobGroup) { try { Scheduler scheduler = schedulerFactoryBean.getScheduler(); TriggerKey triggerKey = TriggerKey.triggerKey(jobName + "_trigger", jobGroup + "_trigger"); scheduler.pauseTrigger(triggerKey); System.out.println("=========================pause job:" + jobName + " success========================"); } catch (SchedulerException e) { e.printStackTrace(); } } /** * 恢复任务 * * @param jobName * @param jobGroup */ @Override public void resumeJob(String jobName, String jobGroup) { try { Scheduler scheduler = schedulerFactoryBean.getScheduler(); TriggerKey triggerKey = TriggerKey.triggerKey(jobName + "_trigger", jobGroup + "_trigger"); scheduler.resumeTrigger(triggerKey); System.out.println("=========================resume job:" + jobName + " success========================"); } catch (SchedulerException e) { e.printStackTrace(); } } @Override public void deleteJob(String jobName, String jobGroup) { try { Scheduler scheduler = schedulerFactoryBean.getScheduler(); JobKey jobKey = JobKey.jobKey(jobName,jobGroup); scheduler.deleteJob(jobKey); System.out.println("=========================delete job:" + jobName + " success========================"); } catch (SchedulerException e) { e.printStackTrace(); } }}
9、新建controller
package com.springquartz.controller;import com.springquartz.service.JobService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.RestController;/** * @author hzb * @date 2018/08/28 */@RestController@RequestMapping("/quartztest")public class JobController { @Autowired private JobService jobService; /** * 创建cron任务 * @param jobName * @param jobGroup * @return */ @RequestMapping(value = "/cron",method = RequestMethod.POST) public String startCronJob(@RequestParam("jobName") String jobName, @RequestParam("jobGroup") String jobGroup){ jobService.addCronJob(jobName,jobGroup); return "create cron task success"; } /** * 创建异步任务 * @param jobName * @param jobGroup * @return */ @RequestMapping(value = "/async",method = RequestMethod.POST) public String startAsyncJob(@RequestParam("jobName") String jobName, @RequestParam("jobGroup") String jobGroup){ jobService.addAsyncJob(jobName,jobGroup); return "create async task success"; } /** * 暂停任务 * @param jobName * @param jobGroup * @return */ @RequestMapping(value = "/pause",method = RequestMethod.POST) public String pauseJob(@RequestParam("jobName") String jobName, @RequestParam("jobGroup") String jobGroup){ jobService.pauseJob(jobName,jobGroup); return "pause job success"; } /** * 恢复任务 * @param jobName * @param jobGroup * @return */ @RequestMapping(value = "/resume",method = RequestMethod.POST) public String resumeJob(@RequestParam("jobName") String jobName, @RequestParam("jobGroup") String jobGroup){ jobService.resumeJob(jobName,jobGroup); return "resume job success"; } /** * 删除务 * @param jobName * @param jobGroup * @return */ @RequestMapping(value = "/delete",method = RequestMethod.PUT) public String deleteJob(@RequestParam("jobName") String jobName, @RequestParam("jobGroup") String jobGroup){ jobService.deleteJob(jobName,jobGroup); return "delete job success"; }}
10、新建job,这里的job仅仅只是打印信息,不做复杂的业务
package com.springquartz.job;import org.quartz.Job;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;/** * @author hzb * @date 2018/08/28 */public class CronJob implements Job { @Override public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException { System.out.println("=========================定时任务每5秒执行一次==============================="); System.out.println("jobName=====:"+jobExecutionContext.getJobDetail().getKey().getName()); System.out.println("jobGroup=====:"+jobExecutionContext.getJobDetail().getKey().getGroup()); System.out.println("taskData=====:"+jobExecutionContext.getJobDetail().getJobDataMap().get("taskData")); }}
package com.springquartz.job;import org.quartz.Job;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;/** * @author Administrator * @date 2018/08/28 */public class AsyncJob implements Job { @Override public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException { System.out.println("========================立即执行的任务,只执行一次==============================="); System.out.println("jobName=====:"+jobExecutionContext.getJobDetail().getKey().getName()); System.out.println("jobGroup=====:"+jobExecutionContext.getJobDetail().getKey().getGroup()); System.out.println("taskData=====:"+jobExecutionContext.getJobDetail().getJobDataMap().get("asyncData")); }}
11、执行结果
启动程序之后,这里用postman进行测试
a、创建一个cron任务
控制台打印:
2018-08-29 14:22:11.668 INFO 3284 --- [nio-8084-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 19 ms=========================定时任务每5秒执行一次===============================jobName=====:cron1jobGroup=====:cron-group1taskData=====:hzb-cron-001=========================定时任务每5秒执行一次===============================jobName=====:cron1jobGroup=====:cron-group1taskData=====:hzb-cron-001=========================定时任务每5秒执行一次===============================jobName=====:cron1jobGroup=====:cron-group1taskData=====:hzb-cron-001=========================定时任务每5秒执行一次===============================
b、暂停任务
控制台打印:
=========================定时任务每5秒执行一次===============================jobName=====:cron1jobGroup=====:cron-group1taskData=====:hzb-cron-001=========================定时任务每5秒执行一次===============================jobName=====:cron1jobGroup=====:cron-group1taskData=====:hzb-cron-001=========================pause job:cron1 success========================
可以看到刚才的5秒一次的定时任务不执行了
c、恢复任务
控制台打印:
=========================pause job:cron1 success=================================================resume job:cron1 success=================================================定时任务每5秒执行一次===============================jobName=====:cron1jobGroup=====:cron-group1taskData=====:hzb-cron-001=========================定时任务每5秒执行一次===============================jobName=====:cron1jobGroup=====:cron-group1taskData=====:hzb-cron-001
d、删除任务
控制台打印:
=========================定时任务每5秒执行一次===============================jobName=====:cron1jobGroup=====:cron-group1taskData=====:hzb-cron-001=========================定时任务每5秒执行一次===============================jobName=====:cron1jobGroup=====:cron-group1taskData=====:hzb-cron-001=========================delete job:cron1 success========================
二、扩展:cron表达式
cron表达式用于配置cronTrigger的实例。cron表达式实际上是由七个子表达式组成。这些表达式之间用空格分隔。1.Seconds (秒)2.Minutes(分)3.Hours(小时)4.Day-of-Month (天)5.Month(月)6.Day-of-Week (周)7.Year(年)例:"0 0 12 ? * WED” 意思是:每个星期三的中午12点执行。个别子表达式可以包含范围或者列表。例如:上面例子中的WED可以换成"MON-FRI","MON,WED,FRI",甚至"MON-WED,SAT"。子表达式范围:1.Seconds (0~59)2.Minutes (0~59)3.Hours (0~23)4.Day-of-Month (1~31,但是要注意有些月份没有31天)5.Month (0~11,或者"JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV,DEC")6.Day-of-Week (1~7,1=SUN 或者"SUN, MON, TUE, WED, THU, FRI, SAT”)7.Year (1970~2099) Cron表达式的格式:秒 分 时 日 月 周 年(可选)。字段名 允许的值 允许的特殊字符 秒 0-59 , - * / 分 0-59 , - * / 小时 0-23 , - * / 日 1-31 , - * ? / L W C月 1-12 or JAN-DEC , - * / 周几 1-7 or SUN-SAT , - * ? / L C # 年(可选字段) empty 1970-2099 , - * /
字符含义:
* :代表所有可能的值。因此,“*”在Month中表示每个月,在Day-of-Month中表示每天,在Hours表示每小时- :表示指定范围。, :表示列出枚举值。例如:在Minutes子表达式中,“5,20”表示在5分钟和20分钟触发。/ :被用于指定增量。例如:在Minutes子表达式中,“0/15”表示从0分钟开始,每15分钟执行一次。"3/20"表示从第三分钟开始,每20分钟执行一次。和"3,23,43"(表示第3,23,43分钟触发)的含义一样。? :用在Day-of-Month和Day-of-Week中,指“没有具体的值”。当两个子表达式其中一个被指定了值以后,为了避免冲突,需要将另外一个的值设为“?”。例如:想在每月20日触发调度,不管20号是星期几,只能用如下写法:0 0 0 20 * ?,其中最后以为只能用“?”,而不能用“*”。L :用在day-of-month和day-of-week字串中。它是单词“last”的缩写。它在两个子表达式中的含义是不同的。在day-of-month中,“L”表示一个月的最后一天,一月31号,3月30号。在day-of-week中,“L”表示一个星期的最后一天,也就是“7”或者“SAT”如果“L”前有具体内容,它就有其他的含义了。例如:“6L”表示这个月的倒数第六天。“FRIL”表示这个月的最后一个星期五。注意:在使用“L”参数时,不要指定列表或者范围,这样会出现问题。W :“Weekday”的缩写。只能用在day-of-month字段。用来描叙最接近指定天的工作日(周一到周五)。例如:在day-of-month字段用“15W”指“最接近这个月第15天的工作日”,即如果这个月第15天是周六,那么触发器将会在这个月第14天即周五触发;如果这个月第15天是周日,那么触发器将会在这个月第 16天即周一触发;如果这个月第15天是周二,那么就在触发器这天触发。注意一点:这个用法只会在当前月计算值,不会越过当前月。“W”字符仅能在 day-of-month指明一天,不能是一个范围或列表。也可以用“LW”来指定这个月的最后一个工作日,即最后一个星期五。# :只能用在day-of-week字段。用来指定这个月的第几个周几。例:在day-of-week字段用"6#3" or "FRI#3"指这个月第3个周五(6指周五,3指第3个)。如果指定的日期不存在,触发器就不会触发。
表达式例子:
0 * * * * ? 每1分钟触发一次0 0 * * * ? 每天每1小时触发一次0 0 10 * * ? 每天10点触发一次0 * 14 * * ? 在每天下午2点到下午2:59期间的每1分钟触发 0 30 9 1 * ? 每月1号上午9点半0 15 10 15 * ? 每月15日上午10:15触发*/5 * * * * ? 每隔5秒执行一次0 */1 * * * ? 每隔1分钟执行一次0 0 5-15 * * ? 每天5-15点整点触发0 0/3 * * * ? 每三分钟触发一次0 0-5 14 * * ? 在每天下午2点到下午2:05期间的每1分钟触发 0 0/5 14 * * ? 在每天下午2点到下午2:55期间的每5分钟触发0 0/5 14,18 * * ? 在每天下午2点到2:55期间和下午6点到6:55期间的每5分钟触发0 0/30 9-17 * * ? 朝九晚五工作时间内每半小时0 0 10,14,16 * * ? 每天上午10点,下午2点,4点 0 0 12 ? * WED 表示每个星期三中午12点0 0 17 ? * TUES,THUR,SAT 每周二、四、六下午五点0 10,44 14 ? 3 WED 每年三月的星期三的下午2:10和2:44触发 0 15 10 ? * MON-FRI 周一至周五的上午10:15触发0 0 23 L * ? 每月最后一天23点执行一次0 15 10 L * ? 每月最后一日的上午10:15触发 0 15 10 ? * 6L 每月的最后一个星期五上午10:15触发 0 15 10 * * ? 2005 2005年的每天上午10:15触发 0 15 10 ? * 6L 2002-2005 2002年至2005年的每月的最后一个星期五上午10:15触发 0 15 10 ? * 6#3 每月的第三个星期五上午10:15触发
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