java Spring @Scheduled 注解
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Spring @Scheduled annotation
提问by Chandz
How can I use @Scheduled annotation of spring dynamically?
如何动态使用 spring 的 @Scheduled 注释？
CronTrigger(String expression, TimeZone timeZone)
As I have multiple timeZones in database, how can I pass them dynamically?
由于数据库中有多个时区，如何动态传递它们？
I tried this in my code:
我在我的代码中试过这个：
TimeZone timezone = null;
String timezone1 = null;
public SchedulerBean(String timezone2)
{
this.timezone1 = timezone2;
//constructor
}
@Scheduled(cron="0 0 8 * * ?", zone =timezone.getTimeZone(timezone1) ) //Error at this line
public void sendQuestionNotif()
{
//......code
}
Here is the errorI am getting,
这是我得到的错误，
*Type mismatch: cannot convert from TimeZone to String*
Please help me. Because I want to trigger cronbased on timezones. TIA.
请帮我。因为我想根据timezones触发cron。TIA。
回答by Evgeniy Dorofeev
Annotation parameters cannot be set dynamically. You can do it programmatically, like this
注解参数不能动态设置。你可以像这样以编程方式做到这一点
class Scheduler implements Runnable {
public Scheduler(TaskScheduler scheduler, String timezone, String cron) {
scheduler.schedule(this, new CronTrigger(cron, TimeZone.getTimeZone(timezone)));
}
@Override
public void run() {
//
}
}
