package?com.certusnet.flexmall.powermonitor.echartBean;

import?java.sql.Timestamp;
import?java.text.SimpleDateFormat;
import?java.util.ArrayList;
import?java.util.Calendar;
import?java.util.Date;
import?java.util.List;

public?class?DateUtil?{
	public?static?final?SimpleDateFormat?sft?=?new?SimpleDateFormat（
			“yyyy-MM-dd?HH:mm:ss“）;

	/**
	?*?獲取近24小時時間（格式為yyyy-MM-dd?HH:mm:ss），粒度是1小時
	?*?
	?*?@return?最近24小時List?時間粒度為1小時
	?*/
	public?static?List?referenceTime24Hour（）?{
		Date?now?=?new?Date（）;
		Calendar?calendar?=?Calendar.getInstance（）;
		calendar.setTime（now）;
		calendar.set（Calendar.MINUTE?0）;
		calendar.set（Calendar.SECOND?0）;
		calendar.add（Calendar.HOUR_OF_DAY?-1）;
		calendar.add（Calendar.DATE?-1）;
		calendar.add（Calendar.HOUR_OF_DAY?1）;
		List?times24List?=?new?ArrayList（）;
		try?{
			for?（int?i?=?0;?i?				SimpleDateFormat?sdf?=?new?SimpleDateFormat（
						“yyyy-MM-dd?HH:mm:ss“）;
				String?dateStr?=?sdf.format（calendar.getTime（））;
				times24List.add（dateStr）;
				calendar.add（Calendar.HOUR_OF_DAY?1）;
			}
			return?times24List;
		}?catch?（Exception?e）?{
			return?null;
		}
	}

	/**
	?*?獲取近24小時時間（格式為HH:mm:ss），粒度是1小時
	?*?
	?*?@return?最近24小時List?時間粒度為1小時
	?*/
	public?static?List?referenceXAxisTime24Hour（）?{

		Date?now?=?new?Date（）;
		Calendar?calendar?=?Calendar.getInstance（）;
		calendar.setTime（now）;
		//
		calendar.set（Calendar.MINUTE?0）;
		calendar.set（Calendar.SECOND?0）;
		calendar.add（Calendar.HOUR_OF_DAY?-1）;
		calendar.add（Calendar.DATE?-1）;
		calendar.add（Calendar.HOUR_OF_DAY?1）;
		List?timesXAxis24List?=?new?ArrayList（）;
		try?{
			for?（int?i?=?0;?i?				SimpleDateFormat?sdf?=?new?SimpleDateFormat（“HH:mm“）;
				String?dateStr?=?sdf.format（calendar.getTime（））;
				timesXAxis24List.add（dateStr）;
				calendar.add（Calendar.HOUR_OF_DAY?1）;
			}
			return?timesXAxis24List;
		}?catch?（Exception?e）?{
			return?null;
		}
	}



	/**
	?*?性能監控?設備監控
	?*?
	?*?@return?返回值為?String類型?5分鐘粒度?比如12點13分?我們返回值為12點10分?然后向前推2個小時到10點10分
	?*/
	public?static?List?getDeviceMonitorTime（）?{
		Date?now?=?new?Date（）;
		Calendar?calendar?=?Calendar.getInstance（）;
		List?timesXAxis2HoursList?=?new?ArrayList（）;
		calendar.setTime（now）;
		calendar.set（
				Calendar.MINUTE
				（calendar.get（Calendar.MINUTE）?-?calendar.get（Calendar.MINUTE）?%?5）?-?10）;
		calendar.set（Calendar.SECOND?0）;
		timesXAxis2HoursList.add（sft.format（calendar.getTime（）））;
		calendar.add（Calendar.HOUR?-2）;
		timesXAxis2HoursList.add（sft.format（calendar.getTime（）））;
		return?timesXAxis2HoursList;
	}

	/**
	?*?生成坐標軸，取最近兩小時的點?粒度為5分鐘?格式為yyyy-MM-dd?HH:mm:ss
	?*?
	?*?@return?返回值為?List
	?*/
	public?static?List?getRecentlyXAxis2Hours（）?{
		Date?now?=?new?Date（）;
		Calendar?calendar?=?Calendar.getInstance（）;
		calendar.setTime（now）;
		calendar.set（
				Calendar.MINUTE
				（c

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-05-10?15:47??ehcartsExample\
?????文件???????15625??2015-07-31?11:50??ehcartsExample\chart-util.js
?????目錄???????????0??2018-05-10?15:47??ehcartsExample\charts\
?????文件??????921249??2015-07-28?14:53??ehcartsExample\charts\echarts-plain.js
?????目錄???????????0??2018-05-10?15:47??ehcartsExample\echartBean\
?????文件???????15603??2015-07-28?14:52??ehcartsExample\echartBean\DateUtil.java
?????文件????????3158??2015-07-28?14:52??ehcartsExample\echartBean\EchartsCommonData.java
?????文件?????????335??2015-07-29?09:09??ehcartsExample\echartBean\EchartsGraphs.java
?????文件?????????319??2015-07-28?14:52??ehcartsExample\echartBean\EchartsLegend.java
?????文件?????????359??2015-07-28?14:52??ehcartsExample\echartBean\EchartsSeriesData.java
?????文件?????????364??2015-07-28?14:52??ehcartsExample\echartBean\EchartsSingleData.java
?????文件?????????286??2015-07-28?14:52??ehcartsExample\echartBean\EchartsxAxis.java
?????文件????????7731??2015-07-31?11:49??ehcartsExample\echartBean\GetEchartSevlet.java
?????文件???????23336??2015-07-31?11:47??ehcartsExample\first_home.jsp