Spring定时器配置.docxVIP

在Spring中有两种流行配置：Java的Timer?和OpenSymphony的Quartz?。1.Java Timer定时?首先继承java.util.TimerTask类实现run方法[java]?view plaincopyimport?java.util.TimerTask;??public?class?EmailReportTask?extends?TimerTask{??????@Override??????public?void?run()?{??????????...??????}???}??在Spring定义，并配置定时器[xhtml]?view plaincopybean?id=reportTimerTask?class=EmailReportTask.../bean??bean?id=scheduleReportTask?class=org.springframework.scheduling.timer.ScheduledTimerTask??property?name=timerTask?ref=reportTimerTask?/??property?name=period??valuvalue??/property??/bean??timerTask属性告诉ScheduledTimerTask运行哪个表24个小时启动定时器Spring的TimerFactoryBean负责启动定时任务[xhtml]?view plaincopybean?class=org.springframework.scheduling.timer.TimerFactoryBean??property?name=scheduledTimerTasks?????listref?bean=scheduleReportTask//list??/property??/bean??scheduledTimerTasks里显示一个需要启动的定时器任务的列表。可以通过设置delay属性延迟启动[xhtml]?view plaincopybean?id=scheduleReportTask?class=org.springframework.scheduling.timer.ScheduledTimerTask??property?name=timerTask?ref=reportTimerTask?/??property?name=period??valuvalue??/property??property?name=delay??value3600000/value??/property??/bean??这个任务我们只能规定每隔24小时运行一次，无法精确到某时启动?2.Quartz定时器?首先继承QuartzJobBean类实现executeInternal方法[java]?view plaincopyimport?org.quartz.JobExecutionContext;??import?org.quartz.JobExecutionException;??import?org.springframework.scheduling.quartz.QuartzJobBean;??public?class?EmailReportJob?extends?QuartzJobBean{??????protected?void?executeInternal(JobExecutionContext?arg0)throws?JobExecutionException?{??????????...??????}??}??在Spring中定义[xhtml]?view plaincopybean?id=reportJob?class=org.springframework.scheduling.quartz.JobDetailBean??property?name=jobClass??valueEmailReportJob/value??/property??/bean??在这里我们并没有直接声明一个EmailReportJob Bean，而是声明了一个JobDetailBean。这个是Quartz的特点。JobDetailBean是Quartz的 org.quartz.JobDetail的子类，它要求通过jobClass属性来设置一个Job对象。使用Quartz的JobDetail中的另一个特别之处是EmailReportJob的courseService属性是间接设置的。 JobDetail的jobDataAsMap属性接受一个Map，包括设置给jobClass的各种属性，当。JobDet