Merge branch 'master' of http://key@gitlab.egolm.com/key/common.git

src/main/java/com/egolm/common/DateUtil.java

-package com.egolm.common;
-
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
-import java.util.Calendar;
-import java.util.Date;
-import java.util.GregorianCalendar;
-import java.util.LinkedHashMap;
-import java.util.Locale;
-import java.util.Map;
-import java.util.SimpleTimeZone;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-public class DateUtil {
-	
-	public static final String FMT_HH = "HH";
-	public static final String FMT_DATE_HH = "yyyy-MM-dd HH";
-	public static final String FMT_TIME = "HH:mm:ss";
-	public static final String FMT_DATE = "yyyy-MM-dd";
-	public static final String FMTDATE = "yyyyMMdd";
-	public static final String FMT_DATE_MINUTE = "yyyy-MM-dd HH:mm";
-	public static final String FMT_DATE_SECOND = "yyyy-MM-dd HH:mm:ss";
-	public static final String FMT_DATE_MILLISECOND = "yyyy-MM-dd HH:mm:ss.SSS";
-	public static final String FMT_A_DATE = "yyyy/MM/dd";
-	public static final String FMT_A_DATE_MINUTE = "yyyy/MM/dd HH:mm";
-	public static final String FMT_A_DATE_SECOND = "yyyy/MM/dd HH:mm:ss";
-	public static final String FMT_A_DATE_MILLISECOND = "yyyy/MM/dd HH:mm:ss.SSS";
-	public static final String FMT_DATE_ISO = "yyyy-MM-ddTHH:mm:ss.SSSZ";
-	public static final String FMT_UTC_GMT = "EEE, dd MMM yyyy HH:mm:ss z";
-	public static final String FMT_YYYYMMddHHMMSS = "yyyyMMddHHmmss";
-	public static final String FMT_UTC_ALIYUN="yyyy-MM-dd'T'HH:mm:ss'Z'";
-
-	public static final Long SECOND = 1000L;
-	public static final Long MINUTE = 1000L*60;
-	public static final Long HALF_HOUR = MINUTE*30;
-	public static final Long HOUR = HALF_HOUR*2;
-	public static final Long HALF_DAY = HOUR*12;
-	public static final Long DAY = HALF_DAY*2;
-	
-	private static final Map<Pattern, String> PATTERN_DATE = new LinkedHashMap<Pattern, String>();
-	
-	static {
-		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})年(([0]?[1-9])|([1][0-2]))月(([0]?[1-9])|([1-2][0-9])|([3][0-1]))日\\s+\\d{1,2}时\\d{1,2}分\\d{1,2}秒)"), "yyyy年MM月dd日 HH时mm分ss秒");
-		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})年(([0]?[1-9])|([1][0-2]))月(([0]?[1-9])|([1-2][0-9])|([3][0-1]))日\\s+\\d{1,2}:\\d{1,2}:\\d{1,2})"), "yyyy年MM月dd日 HH:mm:ss");
-		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})年(([0]?[1-9])|([1][0-2]))月(([0]?[1-9])|([1-2][0-9])|([3][0-1]))日)"), "yyyy年MM月dd日");
-		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})年(([0]?[1-9])|([1][0-2]))月)"), "yyyy年MM月");
-		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})年)"), "yyyy年");
-	
-		PATTERN_DATE.put(Pattern.compile("(\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}.\\d{3}Z)"), DateUtil.FMT_DATE_ISO);
-		
-		PATTERN_DATE.put(Pattern.compile("(\\d{4}/\\d{1,2}/\\d{1,2}\\s+\\d{1,2}:\\d{1,2}:\\d{1,2})"), DateUtil.FMT_A_DATE_SECOND);
-		PATTERN_DATE.put(Pattern.compile("(\\d{4}/\\d{1,2}/\\d{1,2}\\s+\\d{1,2}:\\d{1,2})"), DateUtil.FMT_A_DATE_MINUTE);
-		PATTERN_DATE.put(Pattern.compile("(\\d{4}/\\d{1,2}/\\d{1,2})"), DateUtil.FMT_A_DATE);
-		
-		PATTERN_DATE.put(Pattern.compile("(\\d{4}-\\d{1,2}-\\d{1,2}\\s+\\d{1,2}:\\d{1,2}:\\d{1,2})"), DateUtil.FMT_DATE_SECOND);
-		PATTERN_DATE.put(Pattern.compile("(\\d{4}-\\d{1,2}-\\d{1,2}\\s+\\d{1,2}:\\d{1,2})"), DateUtil.FMT_DATE_MINUTE);
-		PATTERN_DATE.put(Pattern.compile("(\\d{4}-\\d{1,2}-\\d{1,2})"), DateUtil.FMT_DATE);
-		
-		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})(([0][1-9])|([1][0-2]))(([0][1-9])|([1-2][0-9])|([3][0-1])))"), "yyyyMMdd");
-		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})(([0][1-9])|([1][0-2])))"), "yyyyMM");
-		PATTERN_DATE.put(Pattern.compile("([1-2][0-9]{3})"), "yyyy");
-	}
-	
-	/**
-	 * 将日期字符串转化成日期类型
-	 * @param date
-	 * @param fmt
-	 * @return
-	 * @throws ParseException
-	 */
-	public static Date parse(String date, String fmt) {
-		try {
-			SimpleDateFormat sdf = new SimpleDateFormat(fmt);
-			Date newdate = sdf.parse(date);
-			return newdate;
-		} catch (Exception e) {
-			throw new RuntimeException(date + " parse to" + fmt, e);
-		}
-	}
-	
-	/**
-	 * 自动判断日期字符串格式并将其转化为日期类型
-	 * @param str
-	 * @return
-	 */
-	public static Date parse(Object obj) {
-		if(obj instanceof Date) {
-			return new Date(((Date)obj).getTime());
-		} else {
-			String str = String.valueOf(obj).trim();
-			if(StringUtil.isNotEmpty(str)) {
-				for(Pattern pattern : PATTERN_DATE.keySet()) {
-					Matcher matcher = pattern.matcher(str);
-					if(matcher.find()) {
-						String date_str = matcher.group(1);
-						if(PATTERN_DATE.get(pattern).equals(DateUtil.FMT_DATE_ISO)) {
-							return parseISODate(date_str);
-						} else {
-							return parse(date_str, PATTERN_DATE.get(pattern));
-						}
-					}
-				}
-			}
-			return null;
-		}
-	}
-	
-	public static Date parseISODate(String isoDate) {
-		isoDate = isoDate.replace("T", " ").replace("Z", "");
-		Date date = parse(isoDate);
-		java.util.Calendar cal = java.util.Calendar.getInstance();        
-		cal.setTime(date);    
-		int zoneOffset = cal.get(java.util.Calendar.ZONE_OFFSET);  
-		int dstOffset = cal.get(java.util.Calendar.DST_OFFSET); 
-		cal.add(Calendar.MILLISECOND, (zoneOffset + dstOffset));        
-		return cal.getTime();   
-	}
-	
-	public static boolean isDate(Object obj) {
-		if(obj instanceof Date) {
-			return true;
-		} else {
-			String str = String.valueOf(obj);
-			if(StringUtil.isNotEmpty(str)) {
-				String date_str = str.trim();
-				for(Pattern pattern : PATTERN_DATE.keySet()) {
-					if(pattern.matcher(date_str).find()) {
-						return true;
-					}
-				}
-			}
-			return false;
-		}
-	}
-	
-	/**
-	 * 格式化日期为字符串
-	 * @param date
-	 * @param fmt
-	 * @return
-	 */
-	public static String format(Date date, String fmt) {
-		if(date == null) {
-			return null;
-		} else {
-			SimpleDateFormat sdf = new SimpleDateFormat(fmt);
-			return sdf.format(date);
-		}
-	}
-	
-	/**
-	 * 格式化为yyyy-MM-dd格式
-	 * @param date 时间参数 
-	 * @return yyyy-MM-dd
-	 */
-	public static String formatDate(Date date) {
-		return format(date, DateUtil.FMT_DATE);
-	}
-	
-	/**
-	 * 格式化日期为yyyy-MM-dd HH:mm:ss格式
-	 * @param date
-	 * @return yyyy-MM-dd HH:mm:ss
-	 */
-	public static String format(Date date) {
-		SimpleDateFormat sdf = new SimpleDateFormat(DateUtil.FMT_DATE_SECOND);
-		return sdf.format(date);
-	}
-	
-	public static String formatUTCDate(Date date) {
-		SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z", Locale.ENGLISH);
-	    dateFormat.setTimeZone(new SimpleTimeZone(0, "UTC"));
-	    return dateFormat.format(date);
-	}
-	
-	public static String formatGMTDate(Date date) {
-		SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z", Locale.ENGLISH);
-	    dateFormat.setTimeZone(new SimpleTimeZone(0, "GMT"));
-	    return dateFormat.format(date);
-	}
-	
-	/**
-	 * 将毫秒数格式化成默认格式日期字符串
-	 * 默认格式：yyyy-MM-dd HH:mm:ss
-	 * @param time
-	 * @return
-	 */
-	public static String format(Long time) {
-		if(time != null) {
-			Date date = new Date(time);
-			SimpleDateFormat sdf = new SimpleDateFormat(DateUtil.FMT_DATE_SECOND);
-			return sdf.format(date);
-		} else {
-			return null;
-		}
-	}
-	
-	/**
-	 * 将毫秒数格式化为制定格式的日期字符串
-	 * @param time
-	 * @param fmt
-	 * @return
-	 */
-	public static String format(Long time, String fmt) {
-		if(time != null) {
-			Date date = new Date(time);
-			SimpleDateFormat sdf = new SimpleDateFormat(fmt);
-			return sdf.format(date);
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * 将毫秒数格式化为时间格式字符串
-	 * 毫秒数必须小于86400000
-	 * @param time
-	 * @return
-	 */
-	public static String format(Integer time) {
-		return format(time, DateUtil.FMT_TIME);
-	}
-	
-	/**
-	 * 将毫秒数格式化为时间格式字符串
-	 * 毫秒数必须小于86400000
-	 * @param time
-	 * @param fmt
-	 * @return
-	 */
-	public static String format(Integer time, String fmt) {
-		if(time != null) {
-			if(time < 86400000) { 
-				Date date = new Date(time - (1000*60*60*8));
-				SimpleDateFormat sdf = new SimpleDateFormat(fmt);
-				return sdf.format(date);
-			} else {
-				throw new RuntimeException("Can't greater than 86400000");
-			}
-		} else {
-			return null;
-		}
-	}
-	
-	/**
-	 * 计算指定时间当天的开始时间
-	 * @param time
-	 * @return
-	 * @throws ParseException
-	 */
-	public static Date noon(Date time) {
-		Long start = start(time == null ? new Date() : time).getTime();
-		return new Date(start + HALF_DAY);
-	}
-	
-	/**
-	 * 计算指定时间当天的开始时间
-	 * @param time
-	 * @return
-	 * @throws ParseException
-	 */
-	public static Date start(Date time) {
-		if(time != null) {
-			return parse(format(time, DateUtil.FMT_DATE), DateUtil.FMT_DATE);
-		} else {
-			return null;
-		}
-	}
-	
-	/**
-	 * 计算指定日期当天的最后时间
-	 * @param time
-	 * @return
-	 * @throws ParseException 
-	 */
-	public static Date end(Date time) {
-		if(time != null) {
-			return new Date(start(new Date(time.getTime() + (24L*60L*60L*1000L))).getTime());
-		} else {
-			return null;
-		}
-	}
-	
-	/**
-	 * 取得当前时间向后或向前若干天的时间
-	 * @param time
-	 * @param offset
-	 * @return
-	 */
-	public static Date day(Date time, Integer offset) {
-		Date date = new Date(time.getTime() + (offset*86400000L));
-		return date;
-	}
-	
-	/**
-	 * 计算指定的日期是星期几，返回数字 周日至周六分别是0-6
-	 * @param date
-	 * @return
-	 */
-	public static Integer week(Date date) {
-		Calendar calendar = Calendar.getInstance();
-		calendar.setTime(date); 
-		return calendar.get(Calendar.DAY_OF_WEEK) - 1;
-	}
-	
-	/**
-	 * 计算两天之间相隔多少天
-	 * @param start
-	 * @param end
-	 * @return
-	 */
-	public static Integer days(Date start, Date end) {
-		Date date_start = start(start);
-		Date date_end = start(end);
-		return (int)((date_end.getTime() - date_start.getTime()) / 86400000L);
-	}
-	
-	/**
-	 * 判断是否是今天
-	 * @param date
-	 * @return
-	 */
-	public static boolean isToday(Date date) {
-		Date today = new Date();
-		Date start = start(today);
-		Date end = end(today);
-		if(date.getTime() >= start.getTime() && date.getTime() < end.getTime()) {
-			return true;
-		} else {
-			return false;
-		}
-	}
-	
-	/**
-	* 取得当前日期是多少周
-	* @param date
-	* @return
-	*/
-	public static int getWeekOfYear(Date date) {
-		Calendar c = new GregorianCalendar();
-		c.setFirstDayOfWeek(Calendar.MONDAY);
-		c.setMinimalDaysInFirstWeek(7);
-		c.setTime (date);
-		return c.get(Calendar.WEEK_OF_YEAR);
-	}
-
-	/**
-	* 得到某一年周的总数
-	* @param year
-	* @return
-	*/
-	public static int getMaxWeekNumOfYear(int year) { 
-		Calendar c = new GregorianCalendar();
-		c.set(year, Calendar.DECEMBER, 31, 23, 59, 59);
-		return getWeekOfYear(c.getTime());
-	}
-
-	/**
-	* 得到某年某周的第一天
-	* @param year 
-	* @param week
-	* @return
-	*/
-	public static Date getFirstDayOfWeek(int year, int week) {
-		Calendar c = new GregorianCalendar();
-		c.set(Calendar.YEAR, year);
-		c.set (Calendar.MONTH, Calendar.JANUARY);
-		c.set(Calendar.DATE, 1);
-		Calendar cal = (GregorianCalendar) c.clone();
-		cal.add(Calendar.DATE, week * 7);
-		return getFirstDayOfWeek(cal.getTime ());
-	}
-
-	/**
-	* 得到某年某周的最后一天
-	* @param year
-	* @param week
-	* @return
-	*/
-	public static Date getLastDayOfWeek(int year, int week) {
-		Calendar c = new GregorianCalendar(); 
-		c.set(Calendar.YEAR, year);
-		c.set(Calendar.MONTH, Calendar.JANUARY);
-		c.set(Calendar.DATE, 1);
-		Calendar cal = (GregorianCalendar) c.clone();
-		cal.add(Calendar.DATE , week * 7);
-		return getLastDayOfWeek(cal.getTime());
-	}
-	
-	/**
-	* 取得当前日期所在周的第一天
-	* @param date
-	* @return
-	*/
-	public static Date getFirstDayOfWeek(Date date) { 
-		Calendar c = new GregorianCalendar();
-		c.setFirstDayOfWeek(Calendar.MONDAY);
-		c.setTime(date);
-		c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek()); // Monday
-		return c.getTime ();
-	}
-
-	/**
-	* 取得当前日期所在周的最后一天
-	* @param date
-	* @return
-	*/
-	public static Date getLastDayOfWeek(Date date) {
-		Calendar c = new GregorianCalendar();
-		c.setFirstDayOfWeek(Calendar.MONDAY);
-		c.setTime(date);
-		c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek() + 6);
-		return c.getTime();
-	}
-	
-	/**
-	 * 取得当前日期所在月的第一天
-	 * @param date
-	 * @return
-	 */
-	public static Date getFirstDayOfMonth(Date date){
-		Calendar c = Calendar.getInstance();    
-	    c.add(Calendar.MONTH, 0);
-	    c.set(Calendar.DAY_OF_MONTH,1);//设置为1号,当前日期既为本月第一天 
-		return c.getTime();
-	}
-	public static String getTimeStamp() {
-		return String.valueOf(System.currentTimeMillis() / 1000);
-	}
-}
+package com.egolm.common;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+import java.util.LinkedHashMap;
+import java.util.Locale;
+import java.util.Map;
+import java.util.SimpleTimeZone;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class DateUtil {
+	
+	public static final String FMT_HH = "HH";
+	public static final String FMT_DATE_HH = "yyyy-MM-dd HH";
+	public static final String FMT_TIME = "HH:mm:ss";
+	public static final String FMT_DATE = "yyyy-MM-dd";
+	public static final String FMTDATE = "yyyyMMdd";
+	public static final String FMT_DATE_MINUTE = "yyyy-MM-dd HH:mm";
+	public static final String FMT_DATE_SECOND = "yyyy-MM-dd HH:mm:ss";
+	public static final String FMT_DATE_MILLISECOND = "yyyy-MM-dd HH:mm:ss.SSS";
+	public static final String FMT_A_DATE = "yyyy/MM/dd";
+	public static final String FMT_A_DATE_MINUTE = "yyyy/MM/dd HH:mm";
+	public static final String FMT_A_DATE_SECOND = "yyyy/MM/dd HH:mm:ss";
+	public static final String FMT_A_DATE_MILLISECOND = "yyyy/MM/dd HH:mm:ss.SSS";
+	public static final String FMT_DATE_ISO = "yyyy-MM-ddTHH:mm:ss.SSSZ";
+	public static final String FMT_UTC_GMT = "EEE, dd MMM yyyy HH:mm:ss z";
+	public static final String FMT_YYYYMMddHHMMSS = "yyyyMMddHHmmss";
+	public static final String FMT_UTC_ALIYUN="yyyy-MM-dd'T'HH:mm:ss'Z'";
+	
+	public static final String FMT_YYYY_MM = "yyyy/MM";  
+
+	public static final Long SECOND = 1000L;
+	public static final Long MINUTE = 1000L*60;
+	public static final Long HALF_HOUR = MINUTE*30;
+	public static final Long HOUR = HALF_HOUR*2;
+	public static final Long HALF_DAY = HOUR*12;
+	public static final Long DAY = HALF_DAY*2;
+	
+	private static final Map<Pattern, String> PATTERN_DATE = new LinkedHashMap<Pattern, String>();
+	
+	static {
+		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})年(([0]?[1-9])|([1][0-2]))月(([0]?[1-9])|([1-2][0-9])|([3][0-1]))日\\s+\\d{1,2}时\\d{1,2}分\\d{1,2}秒)"), "yyyy年MM月dd日 HH时mm分ss秒");
+		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})年(([0]?[1-9])|([1][0-2]))月(([0]?[1-9])|([1-2][0-9])|([3][0-1]))日\\s+\\d{1,2}:\\d{1,2}:\\d{1,2})"), "yyyy年MM月dd日 HH:mm:ss");
+		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})年(([0]?[1-9])|([1][0-2]))月(([0]?[1-9])|([1-2][0-9])|([3][0-1]))日)"), "yyyy年MM月dd日");
+		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})年(([0]?[1-9])|([1][0-2]))月)"), "yyyy年MM月");
+		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})年)"), "yyyy年");
+	
+		PATTERN_DATE.put(Pattern.compile("(\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}.\\d{3}Z)"), DateUtil.FMT_DATE_ISO);
+		
+		PATTERN_DATE.put(Pattern.compile("(\\d{4}/\\d{1,2}/\\d{1,2}\\s+\\d{1,2}:\\d{1,2}:\\d{1,2})"), DateUtil.FMT_A_DATE_SECOND);
+		PATTERN_DATE.put(Pattern.compile("(\\d{4}/\\d{1,2}/\\d{1,2}\\s+\\d{1,2}:\\d{1,2})"), DateUtil.FMT_A_DATE_MINUTE);
+		PATTERN_DATE.put(Pattern.compile("(\\d{4}/\\d{1,2}/\\d{1,2})"), DateUtil.FMT_A_DATE);
+		
+		PATTERN_DATE.put(Pattern.compile("(\\d{4}-\\d{1,2}-\\d{1,2}\\s+\\d{1,2}:\\d{1,2}:\\d{1,2})"), DateUtil.FMT_DATE_SECOND);
+		PATTERN_DATE.put(Pattern.compile("(\\d{4}-\\d{1,2}-\\d{1,2}\\s+\\d{1,2}:\\d{1,2})"), DateUtil.FMT_DATE_MINUTE);
+		PATTERN_DATE.put(Pattern.compile("(\\d{4}-\\d{1,2}-\\d{1,2})"), DateUtil.FMT_DATE);
+		
+		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})(([0][1-9])|([1][0-2]))(([0][1-9])|([1-2][0-9])|([3][0-1])))"), "yyyyMMdd");
+		PATTERN_DATE.put(Pattern.compile("(([1-2][0-9]{3})(([0][1-9])|([1][0-2])))"), "yyyyMM");
+		PATTERN_DATE.put(Pattern.compile("([1-2][0-9]{3})"), "yyyy");
+	}
+	
+	/**
+	 * 将日期字符串转化成日期类型
+	 * @param date
+	 * @param fmt
+	 * @return
+	 * @throws ParseException
+	 */
+	public static Date parse(String date, String fmt) {
+		try {
+			SimpleDateFormat sdf = new SimpleDateFormat(fmt);
+			Date newdate = sdf.parse(date);
+			return newdate;
+		} catch (Exception e) {
+			throw new RuntimeException(date + " parse to" + fmt, e);
+		}
+	}
+	
+	/**
+	 * 自动判断日期字符串格式并将其转化为日期类型
+	 * @param str
+	 * @return
+	 */
+	public static Date parse(Object obj) {
+		if(obj instanceof Date) {
+			return new Date(((Date)obj).getTime());
+		} else {
+			String str = String.valueOf(obj).trim();
+			if(StringUtil.isNotEmpty(str)) {
+				for(Pattern pattern : PATTERN_DATE.keySet()) {
+					Matcher matcher = pattern.matcher(str);
+					if(matcher.find()) {
+						String date_str = matcher.group(1);
+						if(PATTERN_DATE.get(pattern).equals(DateUtil.FMT_DATE_ISO)) {
+							return parseISODate(date_str);
+						} else {
+							return parse(date_str, PATTERN_DATE.get(pattern));
+						}
+					}
+				}
+			}
+			return null;
+		}
+	}
+	
+	public static Date parseISODate(String isoDate) {
+		isoDate = isoDate.replace("T", " ").replace("Z", "");
+		Date date = parse(isoDate);
+		java.util.Calendar cal = java.util.Calendar.getInstance();        
+		cal.setTime(date);    
+		int zoneOffset = cal.get(java.util.Calendar.ZONE_OFFSET);  
+		int dstOffset = cal.get(java.util.Calendar.DST_OFFSET); 
+		cal.add(Calendar.MILLISECOND, (zoneOffset + dstOffset));        
+		return cal.getTime();   
+	}
+	
+	public static boolean isDate(Object obj) {
+		if(obj instanceof Date) {
+			return true;
+		} else {
+			String str = String.valueOf(obj);
+			if(StringUtil.isNotEmpty(str)) {
+				String date_str = str.trim();
+				for(Pattern pattern : PATTERN_DATE.keySet()) {
+					if(pattern.matcher(date_str).find()) {
+						return true;
+					}
+				}
+			}
+			return false;
+		}
+	}
+	
+	/**
+	 * 格式化日期为字符串
+	 * @param date
+	 * @param fmt
+	 * @return
+	 */
+	public static String format(Date date, String fmt) {
+		if(date == null) {
+			return null;
+		} else {
+			SimpleDateFormat sdf = new SimpleDateFormat(fmt);
+			return sdf.format(date);
+		}
+	}
+	
+	/**
+	 * 格式化为yyyy-MM-dd格式
+	 * @param date 时间参数 
+	 * @return yyyy-MM-dd
+	 */
+	public static String formatDate(Date date) {
+		return format(date, DateUtil.FMT_DATE);
+	}
+	
+	/**
+	 * 格式化日期为yyyy-MM-dd HH:mm:ss格式
+	 * @param date
+	 * @return yyyy-MM-dd HH:mm:ss
+	 */
+	public static String format(Date date) {
+		SimpleDateFormat sdf = new SimpleDateFormat(DateUtil.FMT_DATE_SECOND);
+		return sdf.format(date);
+	}
+	
+	public static String formatUTCDate(Date date) {
+		SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z", Locale.ENGLISH);
+	    dateFormat.setTimeZone(new SimpleTimeZone(0, "UTC"));
+	    return dateFormat.format(date);
+	}
+	
+	public static String formatGMTDate(Date date) {
+		SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z", Locale.ENGLISH);
+	    dateFormat.setTimeZone(new SimpleTimeZone(0, "GMT"));
+	    return dateFormat.format(date);
+	}
+	
+	/**
+	 * 将毫秒数格式化成默认格式日期字符串
+	 * 默认格式：yyyy-MM-dd HH:mm:ss
+	 * @param time
+	 * @return
+	 */
+	public static String format(Long time) {
+		if(time != null) {
+			Date date = new Date(time);
+			SimpleDateFormat sdf = new SimpleDateFormat(DateUtil.FMT_DATE_SECOND);
+			return sdf.format(date);
+		} else {
+			return null;
+		}
+	}
+	
+	/**
+	 * 将毫秒数格式化为制定格式的日期字符串
+	 * @param time
+	 * @param fmt
+	 * @return
+	 */
+	public static String format(Long time, String fmt) {
+		if(time != null) {
+			Date date = new Date(time);
+			SimpleDateFormat sdf = new SimpleDateFormat(fmt);
+			return sdf.format(date);
+		} else {
+			return null;
+		}
+	}
+
+	/**
+	 * 将毫秒数格式化为时间格式字符串
+	 * 毫秒数必须小于86400000
+	 * @param time
+	 * @return
+	 */
+	public static String format(Integer time) {
+		return format(time, DateUtil.FMT_TIME);
+	}
+	
+	/**
+	 * 将毫秒数格式化为时间格式字符串
+	 * 毫秒数必须小于86400000
+	 * @param time
+	 * @param fmt
+	 * @return
+	 */
+	public static String format(Integer time, String fmt) {
+		if(time != null) {
+			if(time < 86400000) { 
+				Date date = new Date(time - (1000*60*60*8));
+				SimpleDateFormat sdf = new SimpleDateFormat(fmt);
+				return sdf.format(date);
+			} else {
+				throw new RuntimeException("Can't greater than 86400000");
+			}
+		} else {
+			return null;
+		}
+	}
+	
+	/**
+	 * 计算指定时间当天的开始时间
+	 * @param time
+	 * @return
+	 * @throws ParseException
+	 */
+	public static Date noon(Date time) {
+		Long start = start(time == null ? new Date() : time).getTime();
+		return new Date(start + HALF_DAY);
+	}
+	
+	/**
+	 * 计算指定时间当天的开始时间
+	 * @param time
+	 * @return
+	 * @throws ParseException
+	 */
+	public static Date start(Date time) {
+		if(time != null) {
+			return parse(format(time, DateUtil.FMT_DATE), DateUtil.FMT_DATE);
+		} else {
+			return null;
+		}
+	}
+	
+	/**
+	 * 计算指定日期当天的最后时间
+	 * @param time
+	 * @return
+	 * @throws ParseException 
+	 */
+	public static Date end(Date time) {
+		if(time != null) {
+			return new Date(start(new Date(time.getTime() + (24L*60L*60L*1000L))).getTime());
+		} else {
+			return null;
+		}
+	}
+	
+	/**
+	 * 取得当前时间向后或向前若干天的时间
+	 * @param time
+	 * @param offset
+	 * @return
+	 */
+	public static Date day(Date time, Integer offset) {
+		Date date = new Date(time.getTime() + (offset*86400000L));
+		return date;
+	}
+	
+	/**
+	 * 计算指定的日期是星期几，返回数字 周日至周六分别是0-6
+	 * @param date
+	 * @return
+	 */
+	public static Integer week(Date date) {
+		Calendar calendar = Calendar.getInstance();
+		calendar.setTime(date); 
+		return calendar.get(Calendar.DAY_OF_WEEK) - 1;
+	}
+	
+	/**
+	 * 计算两天之间相隔多少天
+	 * @param start
+	 * @param end
+	 * @return
+	 */
+	public static Integer days(Date start, Date end) {
+		Date date_start = start(start);
+		Date date_end = start(end);
+		return (int)((date_end.getTime() - date_start.getTime()) / 86400000L);
+	}
+	
+	/**
+	 * 判断是否是今天
+	 * @param date
+	 * @return
+	 */
+	public static boolean isToday(Date date) {
+		Date today = new Date();
+		Date start = start(today);
+		Date end = end(today);
+		if(date.getTime() >= start.getTime() && date.getTime() < end.getTime()) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+	
+	/**
+	* 取得当前日期是多少周
+	* @param date
+	* @return
+	*/
+	public static int getWeekOfYear(Date date) {
+		Calendar c = new GregorianCalendar();
+		c.setFirstDayOfWeek(Calendar.MONDAY);
+		c.setMinimalDaysInFirstWeek(7);
+		c.setTime (date);
+		return c.get(Calendar.WEEK_OF_YEAR);
+	}
+
+	/**
+	* 得到某一年周的总数
+	* @param year
+	* @return
+	*/
+	public static int getMaxWeekNumOfYear(int year) { 
+		Calendar c = new GregorianCalendar();
+		c.set(year, Calendar.DECEMBER, 31, 23, 59, 59);
+		return getWeekOfYear(c.getTime());
+	}
+
+	/**
+	* 得到某年某周的第一天
+	* @param year 
+	* @param week
+	* @return
+	*/
+	public static Date getFirstDayOfWeek(int year, int week) {
+		Calendar c = new GregorianCalendar();
+		c.set(Calendar.YEAR, year);
+		c.set (Calendar.MONTH, Calendar.JANUARY);
+		c.set(Calendar.DATE, 1);
+		Calendar cal = (GregorianCalendar) c.clone();
+		cal.add(Calendar.DATE, week * 7);
+		return getFirstDayOfWeek(cal.getTime ());
+	}
+
+	/**
+	* 得到某年某周的最后一天
+	* @param year
+	* @param week
+	* @return
+	*/
+	public static Date getLastDayOfWeek(int year, int week) {
+		Calendar c = new GregorianCalendar(); 
+		c.set(Calendar.YEAR, year);
+		c.set(Calendar.MONTH, Calendar.JANUARY);
+		c.set(Calendar.DATE, 1);
+		Calendar cal = (GregorianCalendar) c.clone();
+		cal.add(Calendar.DATE , week * 7);
+		return getLastDayOfWeek(cal.getTime());
+	}
+	
+	/**
+	* 取得当前日期所在周的第一天
+	* @param date
+	* @return
+	*/
+	public static Date getFirstDayOfWeek(Date date) { 
+		Calendar c = new GregorianCalendar();
+		c.setFirstDayOfWeek(Calendar.MONDAY);
+		c.setTime(date);
+		c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek()); // Monday
+		return c.getTime ();
+	}
+
+	/**
+	* 取得当前日期所在周的最后一天
+	* @param date
+	* @return
+	*/
+	public static Date getLastDayOfWeek(Date date) {
+		Calendar c = new GregorianCalendar();
+		c.setFirstDayOfWeek(Calendar.MONDAY);
+		c.setTime(date);
+		c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek() + 6);
+		return c.getTime();
+	}
+	
+	/**
+	 * 取得当前日期所在月的第一天
+	 * @param date
+	 * @return
+	 */
+	public static Date getFirstDayOfMonth(Date date){
+		Calendar c = Calendar.getInstance();    
+	    c.add(Calendar.MONTH, 0);
+	    c.set(Calendar.DAY_OF_MONTH,1);//设置为1号,当前日期既为本月第一天 
+		return c.getTime();
+	}
+		/**
+
+	 * 获取指定日期下个月的第一天 的日期
+	* @param dateStr
+	* @param format   
+	* @return
+	*/
+	public static String getFirstDayOfNextMonth(String dateStr,String format){ 
+		SimpleDateFormat sdf = new SimpleDateFormat(format);
+		try {
+			Date date = sdf.parse(dateStr);
+			Calendar calendar = Calendar.getInstance();   
+			calendar.setTime(date);
+			calendar.set(Calendar.DAY_OF_MONTH,1);
+			calendar.add(Calendar.MONTH, 1);
+			return sdf.format(calendar.getTime());
+		} catch (ParseException e) {
+			e.printStackTrace();
+		}
+		return null;
+	} 
+	public static String getTimeStamp() {
+		return String.valueOf(System.currentTimeMillis() / 1000);
+	}
+}