?
Quartz是OpenSymphony開源組織在Job scheduling領域又一個開源項目,它可以與J2EE與J2SE應用程序相結合也可以單獨使用。Quartz可以用來創建簡單或為運行十個，百個，甚至是好幾萬個Jobs這樣復雜的日程序表。Jobs可以做成標準的Java組件或 EJBs。Quartz的最新版本為Quartz 1.5.2。
實例：
package
?example.quartz;
import
?org.quartz.CronTrigger;
import
?org.quartz.Job;
import
?org.quartz.JobDetail;
import
?org.quartz.JobExecutionContext;
import
?org.quartz.JobExecutionException;
import
?org.quartz.Scheduler;
import
?org.quartz.SchedulerFactory;
import
?java.util.Date;
/**?*/
/**
?*?
@author
?kestrel
?
*/
/**/
/*
?實現Job?
*/
public
?
class
?QuartzReport?
implements
?Job?
{
????
/**/
/*
?重載該函數?
*/
????
public
?
void
?execute(JobExecutionContext?cntxt)?
throws
?JobExecutionException?
{
????????System.out.println(
"
Generating?report?-?
"
????????????????????????
+
?cntxt.getJobDetail().getJobDataMap().get(
"
type
"
)
????????????????????????
+
?
new
?Date());
????}
????
public
?
static
?
void
?main(String[]?args)?
{
????????
try
?
{
????????????SchedulerFactory?schedFact?
=
?
new
?org.quartz.impl.StdSchedulerFactory();
????????????Scheduler?sched?
=
?schedFact.getScheduler();
????????????sched.start();
????????????JobDetail?jobDetail?
=
?
new
?JobDetail(
"
Income?Report
"
,
????????????????????
"
Report?Generation
"
,?QuartzReport.
class
);
????????????jobDetail.getJobDataMap().put(
"
type
"
,?
"
FULL
"
);
????????????CronTrigger?trigger?
=
?
new
?CronTrigger(
"
Income?Report
"
,
????????????????????
"
Report?Generation
"
);
????????????
/**/
/*
?每1分鐘執行一次?
*/
????????????trigger.setCronExpression(
"
0?0/1?*?*?*??
"
);
????????????sched.scheduleJob(jobDetail,?trigger);
????????}
?
catch
?(Exception?e)?
{
????????????e.printStackTrace();
????????}
????}
}
Quartz的配置文件：quartz.properties
# Configure Main Scheduler Properties
org.quartz.scheduler.instanceName = TestScheduler
org.quartz.scheduler.instanceId = one
# Configure ThreadPool
org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.threadCount =? 5
org.quartz.threadPool.threadPriority = 4
# Configure JobStore
org.quartz.jobStore.misfireThreshold = 5000
org.quartz.jobStore.class = org.quartz.simpl.RAMJobStore
附：cronExpression配置說明
|
字段
|
允許值
|
允許的特殊字符
|
|
秒
|
0-59
|
, - * /
|
|
分
|
0-59
|
, - * /
|
|
小時
|
0-23
|
, - * /
|
|
日期
|
1-31
|
, - * ? / L W C
|
|
月份
|
1-12 或者 JAN-DEC
|
, - * /
|
|
星期
|
1-7 或者 SUN-SAT
|
, - * ? / L C #
|
|
年（可選）
|
留空, 1970-2099
|
, - * /
|