The Scheduler cannot be restarted after shutdown() has been called.的解决方法

The Scheduler cannot be restarted after shutdown() has been called.的解决办法
quartz
是使用了scheduler中函数：
shutdown() 后再使用
start() 启动的原因。

而使用standby
The scheduler is not destroyed, and can be re-started at any time.


解决办法：
scheduler中函数：
standby()
start()