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spring-boot-quartz, 依赖spring-boot-parent good

 

/** 
*
state的值代表该任务触发器的状态:
STATE_BLOCKED 4 // 运行
STATE_COMPLETE 2 //完成那一刻,不过一般不用这个判断Job状态
STATE_ERROR 3 // 错误
STATE_NONE -1 //未知
STATE_NORMAL 0 //正常无任务,用这个判断Job是否在运行
STATE_PAUSED 1 //暂停状态
*/

import java.util.Date;  

import org.quartz.CronTrigger;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.SimpleTrigger;
import org.quartz.Trigger;
import org.quartz.impl.StdScheduler;
import org.quartz.impl.StdSchedulerFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.scheduling.quartz.SchedulerFactoryBean;

import cn.wa8.qweb.extract.action.Extract2DB;
public class SimpleRun {

private static Logger log = LoggerFactory.getLogger(SimpleRun.class);

public void run() throws Exception {
SchedulerFactory schedFact = new org.quartz.impl.StdSchedulerFactory();
Scheduler sched = schedFact.getScheduler();
JobDetail jobDetail = new JobDetail("myJob",null,SimpleJob.class);
SimpleTrigger trigger = new SimpleTrigger("myTrigger",
null,
new Date(),
null,
SimpleTrigger.REPEAT_INDEFINITELY,
30L * 1000L);

sched.scheduleJob(jobDetail, trigger);
//sched.addJobListener(new MyTriggerListener());
SimpleJob.preDate = new Date();
sched.start();
System.out.println("starting");
/**
*
state的值代表该任务触发器的状态:
STATE_BLOCKED 4 // 运行
STATE_COMPLETE 2 //完成那一刻,不过一般不用这个判断Job状态
STATE_ERROR 3 // 错误
STATE_NONE -1 //未知
STATE_NORMAL 0 //正常无任务,用这个判断Job是否在运行
STATE_PAUSED 1 //暂停状态
*/
while (true){
if(4 == sched.getTriggerState("myTrigger", null)){
System.out.println("running");
}else if(0 == sched.getTriggerState("myTrigger", null)){
System.out.println("ending");
}else {
System.out.println("error state:"+sched.getTriggerState("myTrigger", null));
}
try {
Thread.sleep(5*1000);
} catch (Exception e) {
// TODO: handle exception
}
}
}

public static void main(String[] args) {

SimpleRun simpleRun = new SimpleRun();

try {
simpleRun.run();
} catch (Exception e) {
e.printStackTrace();
}
}
}

 

 

import java.util.Date;  
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import cn.wa8.qweb.extract.action.Extract2DB;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.StatefulJob;
/*Extract2DB extract2db = new Extract2DB();
extract2db.CommonBaseExtract();*/

public class SimpleJob implements StatefulJob{
public static Date preDate ;
public void execute(JobExecutionContext arg0) throws JobExecutionException {
System.out.println("into Job");
Date currentDate = new Date();
Long s = (currentDate.getTime()-preDate.getTime())/1000;
try {
Thread.sleep(10*1000);
} catch (Exception e) {
e.printStackTrace();
}
System.out.println(s);
System.out.println("leave Job:"+Thread.currentThread().toString());
preDate =currentDate;
}

}



都是执行时间大于间隔时间才会出现的情况,实际做了测试和http://blog.sina.com.cn/s/blog_56d8ea900100cecq.html第2点有点不符,记录如下:

第一种情况:misfire设置时间为600秒;任务每隔2分钟执行一次;任务执行时间为3分钟;
上次执行时间 下次执行时间 状态 解释
20:23:04 20:25:04 正在执行 任务实际要执行到20:26:04,推后两分钟是20:28:04

 

时间到了20:26:04。日志变更为:

20:25:04        20:27:04        正在执行    任务实际要执行的20:29:04,推后两分钟是20:31:04

 

时间到了20:29:04,日志变更为:

20:27:04        20:29:04

连续三次发现,实际开始的时间减去应该开始的时间差是递增的;上次执行和下次执行时间反映的实际情况都是不准确的,而且会出现下次执行时间小于当前时间的情况。

注意:持续执行的到 实际启动时间 减去 应该开始时间 大于等于misfire时间;奇怪的是,不是开始参考第二种情况继续执行,而是最后一次执行后即开始长时间等待,而且上次以及下次开始时间也不更新,保持原样;直到实际启动时间+misfire时间 时刻开始继续执行,并且更新上次以及下次开始时间,再开始一个上述周期。

第二种情况:misfire设置时间为6秒,任务每隔2分钟执行一次,任务执行时间为3分钟:

上次执行时间    下次执行时间    状态        解释
18:08:12 18:10:12 正在执行 任务实际要执行到18:11:12,推后两分钟是18:13:12

 

时间到了18:11:12,日志变更为:

18:08:12        18:10:12        等待        超出misfire时间;任务还没有更新状态
18:08:12 18:12:12 等待 是18:12:12,而不是18:13:12。

算法描述如下:

本次任务应该开始时间为18:10:12,应该结束时间为18:12:12;实际启动时间为18:11:12;实际启动后结束时间为18:13:12;实际启动时间减去应该开始时间超出了misfire,所以状态为等待,即本次任务不执行,从而上次执行时间不变;
计算下次执行时间:当前时间为18:11:12(或者一个稍微大于该值的值),拿应该结束时间以及实际启动后结束时间和当前时间比较,取当前时间往后的最小值作为下次任务启动时间。(算法兼容下面第2点说法)
18:12:12 18:14:12 正在执行

其他引用:
org.quartz.jobStore.misfireThreshold = 60000 #60秒 默认值
那么执行第一次作业是在10:01秒,这时会设定下一次的执行时间为10:02秒,要等一个作业执行完之后才有可用线程,大概要在10:11秒才能执行前面安排的应该在10:02执行的作业,这时就会用到misfireThreshold, 因为10:11与10:02之间的差值小于6000,所以执行该作业,并以10:02为基准设置下一次执行时间为10:03,这样造成每次实际执行时间与安排时间错位
如果 org.quartz.jobStore.misfireThreshold = 6000 #秒
同样,在10:11计划执行安排在10:02的作业,发现10:11与10:02之间的差值小于6000,那么直接跳过该作业,执行本应在当前时间执行的 作业,这时候会以10:11为基准设定下次作业执行时间为10:12(状态此段区间内一直是等待,只是更改了下次作业时间)

其他情况:
quartz有个全局的参数misfireThreshold设置可以允许的超时时间,超过了就不执行,未超过就执行。
比如设置了misfireThreshold=30分钟,如果一个任务定时在10:30执行,但在10:29服务器挂了,在10:50启动,虽然任务超时了21分钟,但小于misfireThreshold,所以还是可以执行
而如果服务器11:10才启动,那就misfire了。

对于周期性的任务,如果有misfire的情况出现,则会自动更新CronTrigger的时间周期
默认情况下会在当前时间马上执行前一个被misfire的任务
而如果设置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


 

​​http://www.quartz-scheduler.org/documentation/quartz-2.1.x/quick-start.html ​​

spring-boot-quartz, 依赖spring-boot-parent

  • ​​spring-boot​​
  • ​​Easyui​​
  • ​​Quartz​​

​​

spring-boot-quartz, 依赖spring-boot-parent  good_执行时间

​​

  • 项目启动后输入:http://localhost/
  • 数据库文件:​​https://github.com/leelance/spring-boot-all/blob/master/spring-boot-quartz/src/main/resources/demo-schema.sql​​

application.properties

# IDENTITY (ContextIdApplicationContextInitializer)
spring.application.index=WebQuartz.v1.1
spring.application.name=WebQuartz

#Server
server.port=80
server.jsp-servlet.class-name=org.apache.jasper.servlet.JspServlet

security.basic.enabled=false
management.security.enabled=false

#MVC
spring.mvc.view.prefix=/WEB-INF/views/
spring.resources.static-locations=classpath:/static/

security.basic.enabled=false
management.security.enabled=false

#LOG
logging.config=classpath:log4j2.xml

configuration

@Configuration
public class QuartzConfig {

@Bean
public Scheduler scheduler() throws IOException, SchedulerException {
SchedulerFactory schedulerFactory = new StdSchedulerFactory(quartzProperties());
Scheduler scheduler = schedulerFactory.getScheduler();
scheduler.start();
return scheduler;
}

/**
public Properties quartzProperties() throws IOException {
Properties prop = new Properties();
prop.put("quartz.scheduler.instanceName", "ServerScheduler");
prop.put("org.quartz.scheduler.instanceId", "AUTO");
prop.put("org.quartz.scheduler.skipUpdateCheck", "true");
prop.put("org.quartz.scheduler.instanceId", "NON_CLUSTERED");
prop.put("org.quartz.scheduler.jobFactory.class", "org.quartz.simpl.SimpleJobFactory");
prop.put("org.quartz.jobStore.class", "org.quartz.impl.jdbcjobstore.JobStoreTX");
prop.put("org.quartz.jobStore.driverDelegateClass", "org.quartz.impl.jdbcjobstore.StdJDBCDelegate");
prop.put("org.quartz.jobStore.dataSource", "quartzDataSource");
prop.put("org.quartz.jobStore.tablePrefix", "QRTZ_");
prop.put("org.quartz.jobStore.isClustered", "true");
prop.put("org.quartz.threadPool.class", "org.quartz.simpl.SimpleThreadPool");
prop.put("org.quartz.threadPool.threadCount", "5");

prop.put("org.quartz.dataSource.quartzDataSource.driver", "com.mysql.jdbc.Driver");
prop.put("org.quartz.dataSource.quartzDataSource.URL", "jdbc:mysql://localhost:3306/demo-schema");
prop.put("org.quartz.dataSource.quartzDataSource.user", "root");
prop.put("org.quartz.dataSource.quartzDataSource.password", "123456");
prop.put("org.quartz.dataSource.quartzDataSource.maxConnections", "10");
return prop;
}
}

JS

@Service
public class TaskServiceImpl {
private Logger logger = LogManager.getLogger(getClass());
@Autowired
private Scheduler scheduler;

/**
public List<TaskInfo> list(){
List<TaskInfo> list = new ArrayList<>();

try {
for(String groupJob: scheduler.getJobGroupNames()){
for(JobKey jobKey: scheduler.getJobKeys(GroupMatcher.<JobKey>groupEquals(groupJob))){
List<? extends Trigger> triggers = scheduler.getTriggersOfJob(jobKey);
for (Trigger trigger: triggers) {
Trigger.TriggerState triggerState = scheduler.getTriggerState(trigger.getKey());
JobDetail jobDetail = scheduler.getJobDetail(jobKey);

String cronExpression = "", createTime = "";

if (trigger instanceof CronTrigger) {
CronTrigger cronTrigger = (CronTrigger) trigger;
cronExpression = cronTrigger.getCronExpression();
createTime = cronTrigger.getDescription();
}
TaskInfo info = new TaskInfo();
info.setJobName(jobKey.getName());
info.setJobGroup(jobKey.getGroup());
info.setJobDescription(jobDetail.getDescription());
info.setJobStatus(triggerState.name());
info.setCronExpression(cronExpression);
info.setCreateTime(createTime);
list.add(info);
}
}
}
} catch (SchedulerException e) {
e.printStackTrace();
}

return list;
}

/**
@SuppressWarnings("unchecked")
public void addJob(TaskInfo 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)) {
logger.info("===> AddJob fail, job already exist, jobGroup:{}, jobName:{}", jobGroup, jobName);
throw new ServiceException(String.format("Job已经存在, jobName:{%s},jobGroup:{%s}", jobName, jobGroup));
}

TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);
JobKey jobKey = JobKey.jobKey(jobName, jobGroup);

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


Class<? extends Job> clazz = (Class<? extends Job>)Class.forName(jobName);
JobDetail jobDetail = JobBuilder.newJob(clazz).withIdentity(jobKey).withDescription(jobDescription).build();
scheduler.scheduleJob(jobDetail, trigger);
} catch (SchedulerException | ClassNotFoundException e) {
throw new ServiceException("类名不存在或执行表达式错误");
}
}

/**
public void edit(TaskInfo 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)) {
throw new ServiceException(String.format("Job不存在, jobName:{%s},jobGroup:{%s}", jobName, jobGroup));
}
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

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