注：之前实现的单节点任务调度
1、本代码实现任务的启动停止恢复功能
2、任务是页面上增加，时间策略也是页面增加，保存在表中
3、ScheduleJob 即为任务类
4、在其他模块中进行调用此类
5、quartz版本1.8 spring 3.0
public class QuartzManager {
private static Logger logger = Logger.getLogger(QuartzManager.class);
private static SchedulerFactory gSchedulerFactory = new StdSchedulerFactory();
private static String JOB_GROUP_NAME = "BIGDATA_JOBGROUP_NAME";
private static String TRIGGER_GROUP_NAME = "BIGDATA_TRIGGERGROUP_NAME";
/**
* @Description: 添加一个定时任务，使用默认的任务组名，触发器名，触发器组名
*
* @param jobName
* 任务名
* @param cls
* 任务
* @param time
* 时间设置，参考quartz说明文档
* @throws Throwable
*/
@SuppressWarnings("unchecked")
public static void addJob(ScheduleJob job) throws Exception {
try {
addJob(job.getJobid(), JOB_GROUP_NAME, job.getJobid(), TRIGGER_GROUP_NAME,job, job.getCronExpression());
}catch(SchedulerException e){
e.printStackTrace();
if(e.getMessage().contains("the given trigger will never fire")){
throw new SchedulerException("任务配置错误[此配置时间过期]!");
}
}catch (Exception e) {
e.printStackTrace();
throw new Exception("异常:"+e.getMessage());
}
}
/**
* @Description: 添加一个定时任务
*
* @param jobName
* 任务名
* @param jobGroupName
* 任务组名
* @param triggerName
* 触发器名
* @param triggerGroupName
* 触发器组名
* @param jobClass
* 任务
* @param time
* 时间设置，参考quartz说明文档
* @throws ClassNotFoundException
* @throws ParseException
* @throws Exception
*/
@SuppressWarnings("unchecked")
private static void addJob(String jobName, String jobGroupName,
String triggerName, String triggerGroupName, ScheduleJob job,
String time) throws SchedulerException, ClassNotFoundException, ParseException {
logger.info("-------启动任务方法----");
Scheduler sched = gSchedulerFactory.getScheduler();
logger.info("-------------需要运行的任务类为："+job.getJobclass());
if(job.getJobclass()==null){
throw new SchedulerException("没有配置任务执行类！");
}
Class c = Class.forName(job.getJobclass());
JobDetail jobDetail = new JobDetail(jobName, jobGroupName, c);// 任务名，任务组，任务执行类
jobDetail.getJobDataMap().put("scheduleJob", job); //任务参数
// 触发器
CronTrigger trigger = new CronTrigger(triggerName, triggerGroupName);// 触发器名,触发器组
SimpleDateFormat sdf = new SimpleDateFormat();
if(job.getStartTime()!=null){
String startt= job.getStartTime();
if(startt.length()==4){
//yyyy
sdf.applyPattern("yyyy");
}else if(startt.length()==7){
//yyyy-MM
sdf.applyPattern("yyyy-MM");
}else if(startt.length()==10){
//yyyy-MM-dd
sdf.applyPattern("yyyy-MM-dd");
}else{
//不存在开始时间
}
trigger.setStartTime(sdf.parse(startt));
}
if(job.getEndTime()!=null){
String endt= job.getEndTime();
if(endt.length()==4){
//yyyy
sdf.applyPattern("yyyy");
}else if(endt.length()==7){
//yyyy-MM
sdf.applyPattern("yyyy-MM");
}else if(endt.length()==10){
//yyyy-MM-dd
sdf.applyPattern("yyyy-MM-dd");
}else{
//不存在开始时间
}
trigger.setEndTime(sdf.parse(endt));
}
trigger.setCronExpression(time);// 触发器时间设定
sched.scheduleJob(jobDetail, trigger);
// 启动
if (!sched.isStarted()) {
sched.start();
}
}
public static void addJob(String jobName,Class clz,
String time) throws Exception {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
logger.info("-------------需要运行的任务类为："+clz);
JobDetail jobDetail = new JobDetail(jobName, JOB_GROUP_NAME, clz);// 任务名，任务组，任务执行类
// 触发器
CronTrigger trigger = new CronTrigger(jobName, TRIGGER_GROUP_NAME);// 触发器名,触发器组
trigger.setCronExpression(time);// 触发器时间设定
sched.scheduleJob(jobDetail, trigger);
// 启动
if (!sched.isStarted()) {
sched.start();
}
} catch (Exception e) {
throw new Exception(e);
}
}
/**
* @Description: 修改一个任务的触发时间(使用默认的任务组名，触发器名，触发器组名)
*
* @param jobName
* @param time
* @throws Exception
*
*/
@SuppressWarnings("unchecked")
public static void modifyJobTime(String jobName, String time) throws Exception {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
CronTrigger trigger = (CronTrigger) sched.getTrigger(jobName,
TRIGGER_GROUP_NAME);
if (trigger == null) {
return;
}
String oldTime = trigger.getCronExpression();
if (!oldTime.equalsIgnoreCase(time)) {
JobDetail jobDetail = sched.getJobDetail(jobName,
JOB_GROUP_NAME);
Class objJobClass = jobDetail.getJobClass();
removeJob(jobName);
addJob(jobName, objJobClass, time);
}
} catch (Exception e) {
throw new Exception(e);
}
}
/**
* @Description: 修改一个任务的触发时间
*
* @param triggerName
* @param triggerGroupName
* @param time
* @throws Exception
*/
public static void modifyJobTime(String triggerName,
String triggerGroupName, String time) throws Exception {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
CronTrigger trigger = (CronTrigger) sched.getTrigger(triggerName,
triggerGroupName);
if (trigger == null) {
return;
}
String oldTime = trigger.getCronExpression();
if (!oldTime.equalsIgnoreCase(time)) {
CronTrigger ct = (CronTrigger) trigger;
// 修改时间
ct.setCronExpression(time);
// 重启触发器
sched.resumeTrigger(triggerName, triggerGroupName);
}
} catch (Exception e) {
throw new Exception(e);
}
}
/**
* @Description: 移除一个任务(使用默认的任务组名，触发器名，触发器组名)
*
* @param jobName
* @throws Exception
*
*/
public static void removeJob(String jobName) throws Exception {
removeJob(jobName, JOB_GROUP_NAME, jobName, TRIGGER_GROUP_NAME);
}
/**
* @Description: 移除一个任务
*
* @param jobName
* @param jobGroupName
* @param triggerName
* @param triggerGroupName
* @throws Exception
*
*/
public static void removeJob(String jobName, String jobGroupName,
String triggerName, String triggerGroupName) throws Exception {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
sched.pauseTrigger(triggerName, triggerGroupName);// 停止触发器
sched.unscheduleJob(triggerName, triggerGroupName);// 移除触发器
sched.deleteJob(jobName, jobGroupName);// 删除任务
} catch (Exception e) {
throw new Exception(e);
}
}
/**
* @Description: 暂停一个任务
*
* @param jobName
* @param jobGroupName
* @param triggerName
* @param triggerGroupName
* @throws Exception
*
*/
public static void pauseJob(String jobName) throws Exception {
pauseJob(jobName, JOB_GROUP_NAME, jobName, TRIGGER_GROUP_NAME);
}
public static void pauseJob(String jobName, String jobGroupName,
String triggerName, String triggerGroupName) throws Exception {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
sched.pauseTrigger(triggerName, triggerGroupName);// 停止触发器
// sched.pauseJob(jobName, jobGroupName);
// 启动
if (!sched.isStarted()) {
logger.info("暂停任务后，没有启动，启动调度器");
sched.start();
}
} catch (Exception e) {
throw new Exception(e);
}
}
/**
* 恢复暂停的任务
* @param triggerName
* @param triggerGroupName
* @param time
* @throws Exception
*/
public static void resumeStopJob(String jobName) throws Exception {
resumeStopJob(jobName, JOB_GROUP_NAME, jobName, TRIGGER_GROUP_NAME);
}
public static void resumeStopJob(String jobName, String jobGroupName,
String triggerName, String triggerGroupName) throws Exception {
try {
logger.info("恢复被暂停的任务!");
Scheduler sched = gSchedulerFactory.getScheduler();
// CronTrigger trigger = (CronTrigger) sched.getTrigger(triggerName,
// triggerGroupName);
// JobDetail job = sched.getJobDetail(jobName, jobGroupName);
sched.resumeTrigger(triggerName, triggerGroupName);
// sched.resumeJob(jobName, jobGroupName);
// if(job!=null){
// logger.info("存在此任务!");
//// sched.resumeJob(jobName, jobName);
// }
if (!sched.isStarted()) {
logger.info("恢复任务后，没有启动，启动调度器");
sched.start();
}
logger.info("恢复此任务!"+jobName);
} catch (Exception e) {
throw new Exception(e);
}
}
/**
* @throws Exception
* @Description:启动所有定时任务
*
*/
public static void startJobs() throws Exception {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
sched.start();
} catch (Exception e) {
throw new Exception(e);
}
}
/**
* @throws Exception
* @Description:关闭所有定时任务
*
*/
public static void shutdownJobs() throws Exception {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
if (!sched.isShutdown()) {
sched.shutdown();
}
} catch (Exception e) {
throw new Exception(e);
}
}
/**
* @throws Exception
* @Description:关闭某个定时任务
*
*/
public static void shutdownJob(String jobname) throws Exception {
try {
logger.info("关闭此任务!");
Scheduler sched = gSchedulerFactory.getScheduler();
sched.deleteJob(jobname, JOB_GROUP_NAME);
logger.info("关闭此任务!"+jobname);
} catch (Exception e) {
throw new Exception(e);
}
}
/**
* @throws Exception
* @Description:暂停所有定时任务
*
*/
public static void pauseAllJobs() throws Exception {
try {
Scheduler sched = gSchedulerFactory.getScheduler();
sched.pauseAll();
} catch (Exception e) {
throw new Exception(e);
}
}
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, QuartzJobFactory.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, "10/2 * * * * ?");
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, QuartzJobFactory.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();
}
}
}
Quartz 系统（一） ：实现定时作业调度
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转载自xiangyuan.iteye.com/blog/2229915
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