quartz-2实例

import static org.quartz.CronScheduleBuilder.cronSchedule;
import static org.quartz.JobBuilder.newJob;
import static org.quartz.SimpleScheduleBuilder.simpleSchedule;
import static org.quartz.TriggerBuilder.newTrigger;

import java.util.Date;

import org.quartz.CronTrigger;
import org.quartz.JobDetail;
import org.quartz.JobKey;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.SimpleTrigger;
import org.quartz.TriggerKey;
import org.quartz.impl.StdSchedulerFactory;

public class QuartzManager {
private static SchedulerFactory gSchedulerFactory = new StdSchedulerFactory();
private static String JOB_GROUP_NAME = "EXTJWEB_JOBGROUP_NAME";
private static String TRIGGER_GROUP_NAME = "EXTJWEB_TRIGGERGROUP_NAME";
public static void addJob(String jobName, Class cls, String time) {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
// 任务
JobDetail job = newJob(cls).withIdentity(jobName, JOB_GROUP_NAME)
.build();
// 触发器
CronTrigger trigger = newTrigger()
.withIdentity(TRIGGER_GROUP_NAME, JOB_GROUP_NAME)
.withSchedule(cronSchedule(time)).build();
sched.scheduleJob(job, trigger);
// 启动
if (!sched.isShutdown()) {
sched.start();
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static void addJob(String jobName, Class cls, int time) {

try {
Scheduler sched = gSchedulerFactory.getScheduler();
// 任务
JobDetail job = newJob(cls).withIdentity(jobName, JOB_GROUP_NAME)
.build();
// 触发器
SimpleTrigger trigger = (SimpleTrigger) newTrigger()
.withIdentity(TRIGGER_GROUP_NAME, JOB_GROUP_NAME)
.startAt(new Date())
.withSchedule(
simpleSchedule().withIntervalInSeconds(time)
.repeatForever()).build();
sched.scheduleJob(job, trigger);
// 启动
if (!sched.isShutdown()) {
sched.start();
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}

private static void startJobs() {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
sched.start();
} catch (Exception e) {
throw new RuntimeException(e);
}
}

private static void shutdownJobs() {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
if (!sched.isShutdown()) {
sched.shutdown();
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static void removeJob(String jobName) {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
// 停止触发器
sched.pauseTrigger(TriggerKey.triggerKey(jobName,
TRIGGER_GROUP_NAME));
// 移除触发器
sched.unscheduleJob(TriggerKey.triggerKey(jobName,
TRIGGER_GROUP_NAME));
// 删除任务
sched.deleteJob(JobKey.jobKey(jobName, JOB_GROUP_NAME));
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static void modifyJobTime(String jobName, String time) {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
CronTrigger trigger = (CronTrigger) sched.getTrigger(TriggerKey
.triggerKey(jobName, TRIGGER_GROUP_NAME));
if (trigger == null) {
return;
}
String oldTime = trigger.getCronExpression();
if (!oldTime.equalsIgnoreCase(time)) {
JobDetail jobDetail = sched.getJobDetail(JobKey.jobKey(jobName,
JOB_GROUP_NAME));
Class objJobClass = jobDetail.getJobClass();
removeJob(jobName);
addJob(jobName, objJobClass, time);
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static void modifyJobTime(String jobName, int time) {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
SimpleTrigger trigger = (SimpleTrigger) sched.getTrigger(TriggerKey
.triggerKey(jobName, TRIGGER_GROUP_NAME));
if (trigger == null) {
return;
}
JobDetail jobDetail = sched.getJobDetail(JobKey.jobKey(jobName,
JOB_GROUP_NAME));
Class objJobClass = jobDetail.getJobClass();
removeJob(jobName);
addJob(jobName, objJobClass, time);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static boolean isExist(String jobName) {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
SimpleTrigger trigger = (SimpleTrigger) sched.getTrigger(TriggerKey
.triggerKey(jobName, TRIGGER_GROUP_NAME));
if (trigger == null) {
return true;
} else {
return false;
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}

import java.text.SimpleDateFormat;
import java.util.Date;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
public class QuartzJob implements Job {
@Override
public void execute(JobExecutionContext arg0) throws JobExecutionException {
System.out.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
.format(new Date()));
}
}

public class QuartzTest {
public static void main(String[] args) {
try {
String job_name = "动态任务调度";
System.out.println("【系统启动】开始(每1秒输出一次)...");
QuartzManager.addJob(job_name, QuartzJob.class, "0/1 * * * * ?");

Thread.sleep(5000);
System.out.println("【修改时间】开始(每2秒输出一次)...");
QuartzManager.modifyJobTime(job_name, "0/2 * * * * ?");
Thread.sleep(6000);
System.out.println("【移除定时】开始...");
QuartzManager.removeJob(job_name);
System.out.println("【移除定时】成功");

System.out.println("【再次添加定时任务】开始(每10秒输出一次)...");
QuartzManager.addJob(job_name, QuartzJob.class, "*/10 * * * * ?");
Thread.sleep(60000);
System.out.println("【移除定时】开始...");
QuartzManager.removeJob(job_name);
System.out.println("【移除定时】成功");
} catch (Exception e) {
e.printStackTrace();
}
}
}