1. 层次结构
2. CronTriggerBean
.java
public class CronTriggerBean extends CronTrigger
implements JobDetailAwareTrigger, BeanNameAware, InitializingBean {
/** Constants for the CronTrigger class */
private static final Constants constants = new Constants(CronTrigger.class);
private JobDetail jobDetail;
private String beanName;
/**
* Register objects in the JobDataMap via a given Map.
*/
public void setJobDataAsMap(Map jobDataAsMap) {
getJobDataMap().putAll(jobDataAsMap);
}
/**
* Set the misfire instruction via the name of the corresponding
*/
public void setMisfireInstructionName(String constantName) {
setMisfireInstruction(constants.asNumber(constantName).intValue());
}
/**
* Set a list of TriggerListener names for this job, referring to
* non-global TriggerListeners registered with the Scheduler.
*/
public void setTriggerListenerNames(String[] names) {
for (int i = 0; i < names.length; i++) {
addTriggerListener(names[i]);
}
}
/**
* Set the JobDetail that this trigger should be associated with.
*/
public void setJobDetail(JobDetail jobDetail) {
this.jobDetail = jobDetail;
}
public JobDetail getJobDetail() {
return this.jobDetail;
}
public void setBeanName(String beanName) {
this.beanName = beanName;
}
public void afterPropertiesSet() throws ParseException {
if (getName() == null) {
setName(this.beanName);
}
if (getGroup() == null) {
setGroup(Scheduler.DEFAULT_GROUP);
}
if (getStartTime() == null) {
setStartTime(new Date());
}
if (getTimeZone() == null) {
setTimeZone(TimeZone.getDefault());
}
if (this.jobDetail != null) {
setJobName(this.jobDetail.getName());
setJobGroup(this.jobDetail.getGroup());
}
}
} 3. 定时器配置规则
示例：
4. 说明 <1> 通常只用两个属性 JobDetail和CronExpression,前者确定任务的名称、组等信息,后者确定任务的触发时间、间隔时间等信息;
<2> CronExpression属性在CronTrigger类中。
<3> 示例： 0/15 * * * * 执行时刻：0,15,30,45
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