package?com.websocket;

import?java.io.IOException;
import?java.text.SimpleDateFormat;
import?java.util.Calendar;
import?java.util.Date;
import?java.util.Timer;
import?java.util.TimerTask;

import?javax.websocket.Session;

public?class?SystemTimer?{
	
	static?SystemTimer?systemTimer?=?null;
	
	private?SystemTimer（）{
		/***********單獨開啟一個定時任務，定時沒分鐘給所有接入著發送一個消息提示**************/
		//獲取當前時間，如果當前時間的秒不??，則分鐘????+1
		Calendar?calendar?=?Calendar.getInstance（）;
		Date?currentTime?=?calendar.getTime（）;
		final?Date?newTime?=?this.getNewTime（currentTime）;
		Timer?timer?=?new?Timer（）;
		timer.schedule（new?TimerTask（）?{
			@Override
			public?void?run（）?{
				String?currentTime?=?new?SimpleDateFormat（“yyyy-MM-dd?HH:mm:ss?EEE“）.format（new?Date（））;
				System.out.println（“我在定時器里?“?+?WebSocketTest.getSessionSet（））;
				for?（Session?session?:?WebSocketTest.getSessionSet（））?{
					try?{
						session.getBasicRemote（）.sendText（“系統公告：[大家辛苦了，現在時間是[“?+?currentTime?+?“]，請注意適當休息]“）;
					}?catch?（IOException?e）?{
						e.printStackTrace（）;
					}
				}
			}
		}?newTime?1）;
		/*************************/
	}
	
	public?static?SystemTimer?getInstance（）{
		if（systemTimer?==?null）{
			synchronized?（SystemTimer.class）?{
				if（systemTimer?==?null）{
					systemTimer?=?new?SystemTimer（）;
				}
			}
		}
		return?systemTimer;
	}
	
	/**
	?*?

	?*?根據當前時間，返回下????鐘，整分鐘的時間
	?*?

	?*/
	private?Date?getNewTime（Date?currentTime）{
		Calendar?calendar?=?Calendar.getInstance（）;
		calendar.set（Calendar.SECOND?0）;
		int?minute?=?calendar.get（Calendar.MINUTE）;
		calendar.set（Calendar.MINUTE?minute?+?1）;
		return?calendar.getTime（）;
	}

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-11-25?22:27??websocketDemo\
?????文件????????1179??2014-11-26?22:05??websocketDemo\.classpath
?????文件????????1338??2014-10-10?23:15??websocketDemo\.project
?????目錄???????????0??2014-11-25?22:27??websocketDemo\.settings\
?????文件?????????522??2014-10-10?07:06??websocketDemo\.settings\.jsdtscope
?????文件?????????163??2014-10-10?23:15??websocketDemo\.settings\org.eclipse.core.resources.prefs
?????文件?????????364??2014-10-10?07:06??websocketDemo\.settings\org.eclipse.jdt.core.prefs
?????文件?????????498??2014-10-10?23:15??websocketDemo\.settings\org.eclipse.wst.common.component
?????文件?????????412??2014-10-10?07:06??websocketDemo\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2014-10-10?07:06??websocketDemo\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2014-10-10?07:06??websocketDemo\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2014-11-25?22:27??websocketDemo\WebRoot\
?????目錄???????????0??2014-11-25?22:27??websocketDemo\WebRoot\meta-INF\
?????文件??????????39??2014-10-10?07:06??websocketDemo\WebRoot\meta-INF\MANIFEST.MF
?????目錄???????????0??2014-11-25?22:27??websocketDemo\WebRoot\WEB-INF\
?????目錄???????????0??2014-11-27?21:25??websocketDemo\WebRoot\WEB-INF\classes\
?????目錄???????????0??2014-11-27?21:25??websocketDemo\WebRoot\WEB-INF\classes\com\
?????目錄???????????0??2014-11-27?21:25??websocketDemo\WebRoot\WEB-INF\classes\com\websocket\
?????文件????????2037??2014-11-27?21:25??websocketDemo\WebRoot\WEB-INF\classes\com\websocket\SystemTimer$1.class
?????文件????????1403??2014-11-27?21:25??websocketDemo\WebRoot\WEB-INF\classes\com\websocket\SystemTimer.class
?????文件????????1911??2014-11-27?21:25??websocketDemo\WebRoot\WEB-INF\classes\com\websocket\Test$1.class
?????文件?????????541??2014-11-27?21:25??websocketDemo\WebRoot\WEB-INF\classes\com\websocket\Test.class
?????文件????????3090??2014-11-27?21:25??websocketDemo\WebRoot\WEB-INF\classes\com\websocket\WebSocketTest.class
?????目錄???????????0??2014-12-04?23:28??websocketDemo\WebRoot\WEB-INF\lib\
?????文件?????????407??2014-04-26?00:37??websocketDemo\WebRoot\WEB-INF\web.xml
?????文件????????3050??2014-11-26?22:07??websocketDemo\WebRoot\index.jsp
?????文件??????267320??2014-09-12?09:19??websocketDemo\WebRoot\jquery1.9.0.js
?????目錄???????????0??2014-11-25?22:27??websocketDemo\src\
?????目錄???????????0??2014-11-25?22:27??websocketDemo\src\com\
?????目錄???????????0??2014-11-27?00:26??websocketDemo\src\com\websocket\
?????文件????????1903??2014-11-27?00:42??websocketDemo\src\com\websocket\SystemTimer.java
............此處省略2個文件信息