package?com.pes_soft.task.demo;

import?java.util.Date;

import?org.slf4j.Logger;
import?org.slf4j.LoggerFactory;
import?org.springframework.context.annotation.Lazy;
import?org.springframework.scheduling.Trigger;
import?org.springframework.scheduling.TriggerContext;
import?org.springframework.scheduling.annotation.EnableScheduling;
import?org.springframework.scheduling.annotation.SchedulingConfigurer;
import?org.springframework.scheduling.config.ScheduledTaskRegistrar;
import?org.springframework.scheduling.support.CronTrigger;
import?org.springframework.stereotype.Component;

/**
?*?Spring動態周期定時任務

?*?在不停應用的情況下更改任務執行周期
?*?@Author?許亮
?*?@Create?2016-11-10?16:31:29
?*/
@Lazy（false）
@Component
@EnableScheduling
public?class?SpringDynamicCronTask?implements?SchedulingConfigurer?{
	private?static?final?Logger?logger?=?LoggerFactory.getLogger（SpringDynamicCronTask.class）;
	
	private?static?String?cron;
	
	public?SpringDynamicCronTask（）?{
		cron?=?“0/5?*?*?*?*??“;
		
		//?開啟新線程模擬外部更改了任務執行周期
		new?Thread（new?Runnable（）?{
			@Override
			public?void?run（）?{
				try?{
					Thread.sleep（15?*?1000）;
				}?catch?（InterruptedException?e）?{
					e.printStackTrace（）;
				}
				
				cron?=?“0/10?*?*?*?*??“;
				System.err.println（“cron?change?to:?“?+?cron）;
			}
		}）.start（）;
	}

	@Override
	public?void?configureTasks（ScheduledTaskRegistrar?taskRegistrar）?{
		taskRegistrar.addTriggerTask（new?Runnable（）?{
			@Override
			public?void?run（）?{
				//?任務邏輯
				logger.debug（“dynamicCronTask?is?running...“）;
			}
		}?new?Trigger（）?{
			@Override
			public?Date?nextExecutionTime（TriggerContext?triggerContext）?{
				//?任務觸發，可修改任務的執行周期
				CronTrigger?trigger?=?new?CronTrigger（cron）;
????????????????Date?nextExec?=?trigger.nextExecutionTime（triggerContext）;
????????????????return?nextExec;
			}
		}）;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1438??2016-11-10?21:40??.project

?????文件???????5192??2016-11-10?21:37??pom.xml

?????文件????????575??2016-11-10?21:40??.settings\.jsdtscope

?????文件????????430??2016-11-10?21:40??.settings\org.eclipse.jdt.core.prefs

?????文件?????????90??2016-11-10?21:40??.settings\org.eclipse.m2e.core.prefs

?????文件????????704??2016-11-10?21:40??.settings\org.eclipse.wst.common.component

?????文件????????252??2016-11-10?21:40??.settings\org.eclipse.wst.common.project.facet.core.xml

?????文件?????????49??2016-11-10?21:40??.settings\org.eclipse.wst.jsdt.ui.superType.container

?????文件??????????6??2016-11-10?21:40??.settings\org.eclipse.wst.jsdt.ui.superType.name

?????文件?????????50??2016-11-10?21:40??.settings\org.eclipse.wst.validation.prefs

?????文件???????2009??2016-11-10?21:37??src\main\java\com\pes_soft\task\demo\SpringDynamicCronTask.java

?????文件????????641??2016-11-10?21:37??src\main\java\com\pes_soft\task\demo\SpringStaticCronTask.java

?????文件???????1112??2016-11-10?21:37??src\main\resources\log4j.xml

?????文件???????1447??2016-11-10?21:37??src\main\webapp\WEB-INF\spring\appServlet\servlet-context.xml

?????文件????????930??2016-11-10?21:37??src\main\webapp\WEB-INF\spring\root-context.xml

?????文件????????252??2016-11-10?21:37??src\main\webapp\WEB-INF\views\home.jsp

?????文件???????1239??2016-11-10?21:37??src\main\webapp\WEB-INF\web.xml

?????文件???????1080??2016-11-10?21:37??src\test\resources\log4j.xml

?????文件???????1307??2016-11-10?21:40??target\classes\com\pes_soft\task\demo\SpringDynamicCronTask$1.class

?????文件????????920??2016-11-10?21:40??target\classes\com\pes_soft\task\demo\SpringDynamicCronTask$2.class

?????文件???????1227??2016-11-10?21:40??target\classes\com\pes_soft\task\demo\SpringDynamicCronTask$3.class

?????文件???????1968??2016-11-10?21:40??target\classes\com\pes_soft\task\demo\SpringDynamicCronTask.class

?????文件????????973??2016-11-10?21:40??target\classes\com\pes_soft\task\demo\SpringStaticCronTask.class

?????文件???????1112??2016-11-10?21:40??target\classes\log4j.xml

?????文件????????108??2016-11-10?21:40??target\m2e-wtp\web-resources\meta-INF\MANIFEST.MF

?????文件????????289??2016-11-10?21:40??target\m2e-wtp\web-resources\meta-INF\maven\com.pes_soft\mvc-task-dynamic-cron\pom.properties

?????文件???????5192??2016-11-10?21:40??target\m2e-wtp\web-resources\meta-INF\maven\com.pes_soft\mvc-task-dynamic-cron\pom.xml

?????文件???????1080??2016-11-10?21:40??target\test-classes\log4j.xml

?????文件???????1515??2016-11-10?21:40??.classpath

?????目錄??????????0??2016-11-10?21:37??src\main\java\com\pes_soft\task\demo

............此處省略31個文件信息