jmendateutil.java

梦界家园程序开发基底框架

		String strDate3 = "0";

		if (strbuffInputDate.length() == 10
			|| strbuffInputDate.substring(4, 5).equals("/")) {
			strbuffInputDate.delete(0, 2);
		}
		//6寘柍偗傟偽柍忦審偵僄儔乕
		if (strbuffInputDate.length() == 8
			|| strbuffInputDate.substring(2, 3).equals("/")) {

			strbuffDate.append(strbuffInputDate.substring(0, 2));
			strbuffInputDate.delete(0, 3);
			strbuffDate.append(strbuffInputDate.substring(0, 2));
			strbuffInputDate.delete(0, 3);
			strbuffDate.append(strbuffInputDate.substring(0, 2));

			for (int i = 0; i < strbuffDate.length(); i++) {
				char charData = strbuffDate.charAt(i);
				if ((charData < '0') || (charData > '9')) {
					strDate3 = "0";
				}
			}
			strDate3 = strbuffDate.toString();
		}
		return strDate3;
	}

	/**
	 * 寧傪儘乕儖偟傑偡
	 *
	 * @return 儘乕儖屻偺抣
	 * @param String
	 *            strDate(yyyyMMdd)
	 * @param int
	 *            intMonth 儘乕儖抣 寧屻 = + , 寧慜 = -
	 * @return String 儘乕儖屻偺抣
	 */
	public static String rollMonth(String strDate, int intMonth) {

		String strDay = "0";
		if (strDate != null && strDate.length() == 8) {

			int year = Integer.parseInt(strDate.substring(0, 4));
			int month = Integer.parseInt(strDate.substring(4, 6)) - 1;
			int day = Integer.parseInt(strDate.substring(6, 8));

			Calendar c = Calendar.getInstance();
			DecimalFormat df = new DecimalFormat("00");
			c.set(Calendar.YEAR, year);
			c.set(Calendar.MONTH, month);
			c.set(Calendar.DATE, day);
			c.add(Calendar.MONTH, intMonth);
			strDay =
				c.get(Calendar.YEAR)
					+ df.format(c.get(Calendar.MONTH) + 1)
					+ df.format(c.get(Calendar.DATE));
		}
		return strDay;
	}

	/**
	 * <H3>擔晅曄姺傪愝掕偡傞</H3>
	 *
	 * @param strDate
	 *            曄姺偡傞暥帤楍 20050825 佀 050825
	 *
	 * @return String 曄姺屻偺擔晅宍幃偺暥帤楍
	 */
	public static String Str2Date4(String strDate) {

		if (strDate == null || strDate.equals("")) {
			return "";
		}

		if (strDate.length() == 8) {
			strDate = strDate.substring(2);
		} else {
			strDate = "";
		}

		return strDate;
	}

	/**
	 * 擔晅曄姺傪愝掕偡傞
	 *
	 * @param strData
	 *            擔晅
	 * @param userInfo
	 *            儐乕僓乕忣曬
	 * @return newDataString --巊梡椺-- 0508 佀 200508
	 *
	 */
	public static String setDateString2(String strDate) {
		String strNewDate = "";

		if (strDate != null && strDate.length() == 4) {
			//敿妏悢帤僠僃僢僋
			if (JMCheckType.isHalfNumber(strDate)) {
				int intYearkb = PATTERN_YEARKB;
				int intYear = Integer.parseInt(strDate.substring(0, 2));
				if (intYear >= intYearkb) {
					strNewDate =
						PATTERN_DB_REGIST_DATE_19YYMMDD + strDate;
				} else {
					strNewDate =
						PATTERN_DB_REGIST_DATE_20YYMMDD + strDate;
				}
			}
		}
		return strNewDate;
	}

	/**
	 * <H3>暥帤楍乮YYYYMM乯/乮YYYYMMDD乯傪擔晅宍幃(YY/MM)傊曄姺偡傞</H3>
	 *
	 * @param strDate
	 *            曄姺偡傞暥帤楍
	 * @return String 曄姺屻偺擔晅宍幃偺暥帤楍
	 */
	public static String Str2Date5(String strDate) {

		if (strDate == null || strDate.equals("")) {
			return "";
		}
		if (strDate.length() == 8) {
			strDate = strDate.substring(0,6);
		}
		if (strDate.length() == 6) {
			StringBuffer stbDate = new StringBuffer(strDate.substring(2));

			stbDate.insert(2, "/");
			strDate = stbDate.toString();

		} else {
			return strDate;
		}

		return strDate;
	}

	/**
	 * <H3>暥帤楍乮YY/MM乯傪擔晅宍幃(YYYYMM00)傊曄姺偡傞</H3>
	 *
	 * @param strDate
	 *            曄姺偡傞暥帤楍
	 * @return String 曄姺屻偺擔晅宍幃偺暥帤楍
	 */
	public static String Str2Date6(String strDate) {

		if (strDate == null || strDate.equals("")) {
			return "";
		}

		String year = strDate.substring(0, 2);
		String month = strDate.substring(3, 5);

		String date = year + month + PATTERN_DB_REGIST_DATE_YYMM00;
		// 6寘偺擔晅乕亜 8寘偺擔晅
		if (date.length() == 6) {
			date = setDateString(date);
		}

		return date;
	}

	/**
	 * 擔晅宍幃乮YY/MM/DD乯傪暥帤楍乮YYYYMMDD乯傊曄姺
	 *
	 * @param strDate
	 *            曄姺偟偨偄僨乕僞
	 * @return int 曄姺偝傟偨僨乕僞
	 */
	public static String Date4Str(String strDate) {

		String strDate4 = strDate;
		if (strDate4 != null && !"".equals(strDate4)) {
			//6寘柍偗傟偽柍忦審偵僄儔乕
			if (strDate4.length() == 8
				&& strDate4.substring(2, 3).equals("/")) {
				strDate4 = Date3Str(strDate4);
			}
			// 6寘偺擔晅乕亜 8寘偺擔晅
			if (strDate4.length() == 6) {
				strDate4 = setDateString(strDate4);
			}
		}
		return strDate4;
	}

	/**
	 * 擔晅曄姺傪愝掕偡傞
	 *
	 * @param strData丂擔晅
	 *
	 * @return newDataString --巊梡椺--  200508 佀 20050800
	 *
	 *
	 */
	public static String addDateString(String strDate) {

		String strNewDate = "";
		if (strDate != null && strDate.length() == 6) {
			//敿妏悢帤僠僃僢僋
			if (JMCheckType.isHalfNumber(strDate)) {
				strNewDate = strDate + PATTERN_DB_REGIST_DATE_YYMM00;
			} else {
				return strDate;
			}
		} else {
			return strDate;
		}
		return strNewDate;
	}

	/**
	 * <H3>暥帤楍乮YY/MM乯傪擔晅宍幃(YYYYMM)傊曄姺偡傞</H3>
	 *
	 * @param strDate
	 *            曄姺偡傞暥帤楍
	 * @return String 曄姺屻偺擔晅宍幃偺暥帤楍
	 */
	public static String Str2Date7(String strDate) {

		if (strDate == null || strDate.equals("")) {
			return "";
		}

		if (strDate.length() != 5) {
			return strDate;
		}

		String year = strDate.substring(0, 2);
		String month = strDate.substring(3, 5);
		String date = year + month;
		if (JMCheckType.isHalfNumber(date)) {
			int intYear = Integer.parseInt(year);
			if (intYear >= PATTERN_YEARKB) {
				date = PATTERN_DB_REGIST_DATE_19YYMMDD + date;
			} else {
				date = PATTERN_DB_REGIST_DATE_20YYMMDD + date;
			}
		}

		return date;
	}

	/**
	 * 擔晅曄姺傪愝掕偡傞
	 *
	 * @param strDate
	 *            擔晅
	 * @return newDataString --巊梡椺-- 20050828 佀 0508
	 *  											 050828 佀 0508
	 */
	public static String setDateToYyMm(String strDate) {
		String strNewDate = "";

		if (strDate != null && strDate.length() >= 6) {
			//敿妏悢帤僠僃僢僋
			if (JMCheckType.isHalfNumber(strDate)) {
				strNewDate = strDate.substring(2, 6);
			}
		}
		return strNewDate;
	}

	/**
	 * <H3>摉寧偺FirstDay傪庢摼偡傞丅</H3>
	 *
	 * @param 側偟
	 *
	 * @return 摉寧偺FirstDay
	 *
	 */
	public String getMonthFirstDay() {
		String strDay = "";
		Calendar cal = Calendar.getInstance();
		strDay =
			JMCommonUtil.fillInLeft(
				String.valueOf(cal.getActualMinimum(Calendar.DAY_OF_MONTH)),
				'0',
				2);
		strDay =
			nowDate(PATTERN_DB_REGIST_DATE6).substring(0, 4)
				+ strDay;
		return strDay;
	}

	/**
	 * <H3>摉寧偺LastDay傪庢摼偡傞丅</H3>
	 *
	 * @param 側偟
	 *
	 * @return 摉寧偺LastDay
	 *
	 */
	public String getMonthLastDay() {
		String strDay = "";

		Calendar cal = Calendar.getInstance();
		strDay =
			JMCommonUtil.fillInLeft(
				String.valueOf(cal.getActualMaximum(Calendar.DAY_OF_MONTH)),
				'0',
				2);
		strDay =
			nowDate(PATTERN_DB_REGIST_DATE6).substring(0, 4)
				+ strDay;
		return strDay;
	}

	/**
	 * 擔晅曄姺傪愝掕偡傞
	 *
	 * @param intDate
	 *            擔晅
	 * @return newDataString --巊梡椺-- 200508 佀 05/08
	 */
	public static String int2Date1(int intDate) {
		String strNewDate = "";

		if (intDate != 0) {
			strNewDate = Str2Date5(String.valueOf(intDate));
		}
		return strNewDate;
	}

	/**
	 * <H3>暥帤楍乮YYYYMM乯傪擔晅宍幃(YYYY/MM)傊曄姺偡傞</H3>
	 *
	 * @param strDate
	 *            曄姺偡傞暥帤楍
	 * @return String 曄姺屻偺擔晅宍幃偺暥帤楍
	 */
	public static String Str2Date8(String strDate) {

		if (strDate == null || strDate.equals("")) {
			return "";
		}

		if (strDate.length() == 6) {

			StringBuffer strTemp = new StringBuffer(strDate);
			strTemp.insert(4, "/");
			strDate = strTemp.toString();

		} else {
			return strDate;
		}

		return strDate;
	}

	/**
	 * <H3>寧枛擔偺庢摼</H3>
	 *
	 * @param strYearMonth
	 *            擭寧(200509 / 20050910)
	 * @return String 曄姺屻偺擔晅宍幃偺暥帤楍
	 */
	public static String getMaxDay(String strYearMonth) {
		String strDate = "";
		if(strYearMonth!=null && strYearMonth.length() >= 6){
			int year = Integer.parseInt(strYearMonth.substring(0,4));
			int month = Integer.parseInt(strYearMonth.substring(4,6));
			Calendar c = Calendar.getInstance();
			DecimalFormat df = new DecimalFormat("00");
			c.set(Calendar.YEAR,year);
			c.set(Calendar.MONTH,month);
			c.set(Calendar.DATE,1);
			c.add(Calendar.DATE,-1);
			strDate = c.get(Calendar.YEAR) +
				df.format(c.get(Calendar.MONTH) + 1) +
				df.format(c.get(Calendar.DATE));
		}
		return strDate;
	}

	/**
	 * <H3>暥帤楍乮YY/MM乯傪擔晅宍幃(YYMM)傊曄姺偡傞</H3>
	 *
	 * @param strDate
	 *            曄姺偡傞暥帤楍
	 * @return String 曄姺屻偺擔晅宍幃偺暥帤楍
	 */
	public static String Str4Date4(String strDate) {

		if (strDate == null || strDate.equals("")) {
			return "";
		}

		if (strDate.length() != 5) {
			return strDate;
		}

		String year = strDate.substring(0, 2);
		String month = strDate.substring(3, 5);
		String date = year + month;
		if (!JMCheckType.isHalfNumber(date)) {
			return "";
		}
		return date;
	}

	/**
	 * <H3>巜掕擔偺庢摼</H3>
	 *
	 * @param strDate丂張棟擔晅(20050910/050910)
	 * @param rollDay丂巜掕擔
	 *
	 * @return String 曄姺屻偺擔晅宍幃偺暥帤楍
	 */
	public static String rollDay(String strDate,int rollDay) {
		String date = "";
		String strDate2 = "";
		if(strDate==null || (strDate.length()!=6 && strDate.length()!=8)){
			return "";
		}
		if (!JMCheckType.isHalfNumber(date)) {
			return "";
		}
		if(strDate.length() == 6){
			strDate2 = strDate;
			strDate = setDateString(strDate);
		}
		int year = Integer.parseInt(strDate.substring(0,4));
		int month = Integer.parseInt(strDate.substring(4,6)) - 1;
		int day = Integer.parseInt(strDate.substring(6,8));
		if(rollDay != 0){
			Calendar c = Calendar.getInstance();
			DecimalFormat df = new DecimalFormat("00");
			c.set(Calendar.YEAR,year);
			c.set(Calendar.MONTH,month);
			c.set(Calendar.DATE,day);
			c.add(Calendar.DATE,rollDay);
			date = c.get(Calendar.YEAR) + df.format(c.get(Calendar.MONTH) + 1) +
				   df.format(c.get(Calendar.DATE));
		}
		if(strDate2.length() == 6){
			date = date.substring(2);
		}
		return date;
	}
}