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锁定老帖子 主题:时间类型代码的参考
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发表时间:2008-09-02
最后修改:2010-04-09
public class SfUtil { public static final long hour = 60*60*1000l; //一个小时 public static final long oneday = 24*hour; //一天 public static String el(String str,int len){ if(str==null) return ""; if(len == -1) return str; if(str.length()<=len) return str; if(str.length()>len) return str.substring(0,len); return ""; } /** * 显示按键 * @param list * @return string */ public String getButtom(List list){ String button = ""; for(int i=0;i<list.size();i++){ Object[] obj = (Object[])list.get(i); button += htmlButton(obj) + "  "; } return button; } private String htmlButton(Object[] obj){ StringBuffer button = new StringBuffer(); button.append("<input type=\"button\" name="+obj[0]+" value="+obj[1]+" onclick="+obj[2]+" id="+obj[3]+" "); button.append(" class=\"button\" onmousedown=\"this.className='button_down'\" onmouseout=\"if(this.className!='button') this.className='button';\" "); button.append(" onmouseover=\"if(this.className!='button_over') this.className='button_over';\" onfocus=\"this.blur();\">"); return button.toString(); } /** * 转为时间格式 * @param dateStr 2007-10-3 20:00 * @param format yyyy-MM-dd HH:mm * @return date */ public static Date stringToDate(String dateStr,String format){ java.text.SimpleDateFormat sf = new SimpleDateFormat(format); try { Date date = sf.parse(dateStr); return date; } catch (ParseException e) { return null; } } public static Timestamp stringToTimestamp(String dateStr,String format){ if(format==null) format="yyyy-MM-dd HH:mm"; Date date = stringToDate(dateStr,format); return new Timestamp(date.getTime()); } //取出上个月的当前时间 public static Timestamp getlastMonthday(Timestamp time){ Calendar c = Calendar.getInstance(); c.setTimeInMillis(time.getTime()); c.set(Calendar.DAY_OF_MONTH,c.get(Calendar.DAY_OF_MONTH)==31?c.get(Calendar.DAY_OF_MONTH)-1:c.get(Calendar.DAY_OF_MONTH)); c.set(Calendar.MONTH,c.get(Calendar.MONTH)-1); return new Timestamp(c.getTime().getTime()); } /** * 时间判断 * @param t1 当前时间 * @param t2 规写时间 * @param day 天数 * @return boolean */ public static boolean checkTimeBeweet(Timestamp t1,Timestamp t2,int day){ long daylong = 24*hour; //一天时间 long longt1 = t1.getTime(); long longt2 = t2.getTime(); System.out.println(""+(Math.abs(longt2-longt1)-daylong*day)); return Math.abs(longt2-longt1)-daylong*day>0; } /** *转换为时间格式 * @param time * @param i * @return string */ public static String getDateFormat(Timestamp time,int i){ if(time==null) return ""; String format = "yyyy-MM-dd"; switch(i){ case 1:format="yyyy-MM-dd";break; case 2:format="yyyy-MM-dd HH:mm";break; case 3:format="HH点mm分";break; case 4:format="yyyy年MM月dd日 HH点mm分";break; case 5:format="yyyyMMdd";break; case 6:format="yyyy年MM月dd日";break; case 7:format="yyyyMMdd";break; case 8:format="MM月dd日 HH点mm分";break; case 9:format="MM-dd HH:mm";break; case 10:format="MM月dd日";break; case 11:format=" HH:mm";break; case 12:format="yyyy";break; case 13:format="MM-dd";break; case 14:format="yyyyMM";break; case 15:format="yyyy-MM-dd hh:mm";break; case 16:format="yy-MMdd hh:mm";break; case 17:format="yyyyMMddHH";break; case 18:format="HH";break; default: format = "yyyy-MM-dd";break; } SimpleDateFormat sdf = new SimpleDateFormat(format); return sdf.format(time); } /** * 一个月的第一天 * @param time * @return */ public static Timestamp startOfMonth(Timestamp time){ time.setDate(1); time.setHours(0); time.setMinutes(0); time.setSeconds(0); return time; } /** * 功能: 一月中的最后一天. * 输入: time = 给出的当周内的某一天. * 输出: 该周的最后一天. * @param time * @return */ public static Timestamp endOfMonth(Timestamp time){ time.setDate(DaysInMonth(time)); return time; } /** * 功能: 当月的天数. * 输入: month = 给出的该月的某一个时间. * 输出: 这个月有多少天. * * @param time * @return */ public static int DaysInMonth(Timestamp time){ int month=time.getMonth(); int year=time.getYear(); int DaysInMonth[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; if(month==1){ if(IsLeapYear(year+1900)) DaysInMonth[1]= DaysInMonth[1]+1; } return DaysInMonth[month]; } /** * 功能: 判断是否是闰年. * 输入: year = 给出的 1582 年以后的年份 * 输出: TRUE 是闰年, FALSE 不是.. * * 能被100整除, 不能被400整除的年份, 不是闰年. * 能被100整除, 也能被400整除的年份, 是闰年. * 不能被100整除, 能被4整除的年份是闰年. * @param year * @return */ public static boolean IsLeapYear(int year){ if ((year % 100) == 0) return((year % 400) == 0); return ((year % 4) == 0); } /** * 半角转全角 * @param QJstr * @return */ public static final String BQchange(String QJstr) { String outStr = ""; String Tstr = ""; byte[] b = null; for (int i = 0; i < QJstr.length(); i++) { try { Tstr = QJstr.substring(i, i + 1); b = Tstr.getBytes("unicode"); } catch (java.io.UnsupportedEncodingException e) { e.printStackTrace(); } if (b[3] != -1) { b[2] = (byte) (b[2] - 32); b[3] = -1; try { outStr = outStr + new String(b, "unicode"); } catch (java.io.UnsupportedEncodingException e) { e.printStackTrace(); } } else outStr = outStr + Tstr; } return outStr; } /** * 全角转半角 * @param QJstr * @return string */ public static final String QBchange(String QJstr) { String outStr = ""; String Tstr = ""; byte[] b = null; for (int i = 0; i < QJstr.length(); i++) { try { Tstr = QJstr.substring(i, i + 1); b = Tstr.getBytes("unicode"); } catch (java.io.UnsupportedEncodingException e) { e.printStackTrace(); } if (b[3] == -1) { b[2] = (byte) (b[2] + 32); b[3] = 0; try { outStr = outStr + new String(b, "unicode"); } catch (java.io.UnsupportedEncodingException e) { e.printStackTrace(); } } else outStr = outStr + Tstr; } return outStr; } private static String encoderString = "w123abcd48STGX0UVWYHIJ5fghijklmnstuvBCDEF67KL9AeQRMNopqrOPxyzZ&*%$@!><"; private static String encodeWord(String word){ int pos = encoderString.indexOf(word); if(pos==-1)return word; pos = 10+pos; pos = pos%encoderString.length(); return encoderString.substring(pos,pos+1); } private static String deEncodeWord(String word){ int pos = encoderString.indexOf(word); if(pos==-1)return word; pos = encoderString.length()+pos-10; pos = pos%encoderString.length(); return encoderString.substring(pos,pos+1); } public static final String IdTran = "adkkjasdf0988231273664767123hhjasdhfhyuehadssfnxjaufeaeh12"; public static final String PwdTran = "adkkjasdfaoopadfjue1273664767123hhjasdhfhyuehadssfnxjaufeaeh12"; //加密 public static String tranValueEncode(String str){ StringBuffer sb = new StringBuffer(""); for(int i=0;i<str.length();i++){ String ch = str.substring(i,i+1); sb.append(encodeWord(ch)); } return sb.toString(); } //解密 public static String stanValueDeEncode(String str){ StringBuffer sb = new StringBuffer(""); for(int i=0;i<str.length();i++){ String ch = str.substring(i,i+1); sb.append(deEncodeWord(ch)); } return sb.toString(); } /** * 取出上半年或下半年 * @param time * @return string */ public static String getYearhalf(Timestamp time){ Calendar cal = Calendar.getInstance(); cal.setTimeInMillis(System.currentTimeMillis()); String year = cal.get(Calendar.YEAR)+""; if(time==null) return year+"06"; String ds = year+"-06-01 00:00"; String format = "yyyy-MM-dd HH:mm"; Timestamp t = new Timestamp(stringToDate(ds,format).getTime()); if(t.equals(time)||t.after(time)) return year+"06"; else return year+"07"; } public static String getWeek(int year,int month,int day){ Calendar C = Calendar.getInstance(); C.set(year,month-1,day,0,0,0); int week = C.get(Calendar.DAY_OF_WEEK); String weekStr = ""; switch(week){ case 1: weekStr = "星期天"; break; case 2: weekStr = "星期一"; break; case 3: weekStr = "星期二"; break; case 4: weekStr = "星期三"; break; case 5: weekStr = "星期四"; break; case 6: weekStr = "星期五"; break; case 7: weekStr = "星期六"; break; } return weekStr; } /** * 取昨天 * @param today (格式:20070902) * @param i * @return */ public static String getYesterdayByToday(String today,int i,int next){ String yesterdayByToday = ""; String yy = today.substring(0,4); String mm = ""; String dd = ""; mm=today.substring(4,5); if(mm.equals("0")){ mm=today.substring(5,6); }else{ mm = today.substring(4,6); } dd=today.substring(6,7); if(dd.equals("0")){ dd=today.substring(7,8); }else{ dd=today.substring(6,8); } int yy1 = Integer.parseInt(yy); int mm1 = Integer.parseInt(mm); int dd1 = Integer.parseInt(dd); int[] yesterday = getBeforeDate(yy1,mm1,dd1,next); int yy2 = yesterday[0]; int mm2 = yesterday[1]; int dd2 = yesterday[2]; String mm3 = ""+mm2; if(mm3.length()<2){ mm3 = "0"+mm3; } String dd3 = ""+dd2; if(dd3.length()<2){ dd3 = "0"+dd3; } switch(i){ case 1: yesterdayByToday = yy2+"-"+mm3+"-"+dd3; break; case 2: yesterdayByToday = yy2+mm3+dd3; break; default: yesterdayByToday = yy2+"-"+mm3+"-"+dd3; } return yesterdayByToday; } /** * 得到某一个日期的前面的日期,返回为一个一维数组,有3个元素,分别为年、月、日 * @param year * @param month * @param day * @param beforeDays * @return */ public static int[] getBeforeDate(int year,int month,int day,int beforeDays){ Calendar C = Calendar.getInstance(); C.set(year,month-1,day,0,0,0); C.add(Calendar.DATE,beforeDays*(-1)); int y = C.get(Calendar.YEAR); int m = C.get(Calendar.MONTH)+1; int d = C.get(Calendar.DATE); int[] a = new int[3]; a[0] = y; a[1] = m; a[2] = d; return a; } public static String showNumber(String number,String format){ if(number==null) return ""; if(format == null) format = "#.##"; double datanumber = Double.parseDouble(number); java.text.NumberFormat nf = new DecimalFormat(format); return nf.format(datanumber); } public static String showNumber(float number,String format){ if(number==0.0) return "0.0"; if(format == null) format = "#.##"; //float datanumber = number; java.text.NumberFormat nf = new DecimalFormat(format); return nf.format(number); } /** * 获取给定时间所在月的第一天F的日期和最后一天的日期 * * @param date * @return Date数组,[0]为第一天的日期,[1]最后一天的日期 */ public static Date[] getMonthStartAndEndDate(Date date) { Date[] dates = new Date[2]; Date firstDateOfMonth, lastDateOfMonth; // 得到当天是这月的第几天 Calendar calendar = Calendar.getInstance(); calendar.setTime(date); int dayOfMonth = calendar.get(Calendar.DAY_OF_MONTH); // 减去dayOfMonth,得到第一天的日期,因为Calendar用0代表每月的第一天,所以要减一 calendar.add(Calendar.DAY_OF_MONTH, -(dayOfMonth - 1)); calendar.set(Calendar.HOUR_OF_DAY,0); calendar.set(Calendar.MINUTE,0); calendar.set(Calendar.SECOND,0); calendar.set(Calendar.MILLISECOND,0); firstDateOfMonth = calendar.getTime(); // calendar.getActualMaximum(Calendar.DAY_OF_MONTH)得到这个月有几天 calendar.add(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH) - 1); calendar.set(Calendar.HOUR_OF_DAY,23); calendar.set(Calendar.MINUTE,59); calendar.set(Calendar.SECOND,59); calendar.set(Calendar.MILLISECOND,99); lastDateOfMonth = calendar.getTime(); dates[0] = firstDateOfMonth; dates[1] = lastDateOfMonth; return dates; } public static Date getDayBetweeb(Date date,int day,int minute){ Calendar C = Calendar.getInstance(); C.setTime(date); C.set(Calendar.HOUR_OF_DAY,day); C.set(Calendar.MINUTE,minute); C.set(Calendar.SECOND,0); C.set(Calendar.MILLISECOND,0); return C.getTime(); } /** * 得到某一天的开始时刻和结束时刻 * @param date * @return */ public static Date[] getDayStartAndEndDate(Date date){ Date[] dates = new Date[2]; Calendar C = Calendar.getInstance(); C.setTime(date); C.set(Calendar.HOUR_OF_DAY,0); C.set(Calendar.MINUTE,0); C.set(Calendar.SECOND,0); C.set(Calendar.MILLISECOND,0); dates[0] = C.getTime(); C.set(Calendar.HOUR_OF_DAY,23); C.set(Calendar.MINUTE,59); C.set(Calendar.SECOND,59); C.set(Calendar.MILLISECOND,99); dates[1] = C.getTime(); return dates; } /** * 20040806 ---->2005-08-06 * @param DB_declaredTime * @return */ public static String getChange(String DB_declaredTime,int i){ String changeTime = ""; String y1=DB_declaredTime.substring(0,4); String m1=DB_declaredTime.substring(4,6); String d1=DB_declaredTime.substring(6,8); if(i==1) changeTime = y1+"年"+m1+"月"+d1+"日"; else changeTime = y1+"-"+m1+"-"+d1; return changeTime; } //计算明天(-1) public static Timestamp TimestampTo(Timestamp time,int next){ if(time == null) time = new Timestamp(System.currentTimeMillis()); String str = getDateFormat(time,5); return stringToTimestamp(getYesterdayByToday(str,1,next)+" 00:00",null); } //当前时间,返回一天的开始时间(1)和结束时间(2) public static Timestamp getDayTime(Timestamp time,int local){ Date[] date = getDayStartAndEndDate(time); Date dtime = null; switch(local){ case 1: dtime = date[0];break; case 2: dtime = date[1];break; default:dtime = date[0];break; } return dtime==null?new Timestamp(System.currentTimeMillis()):new Timestamp(dtime.getTime()); } /** * 将文件名中的汉字转为UTF8编码的串,以便下载时能正确显示另存的文件名. * @param s 原文件名 * @return 重新编码后的文件名 */ public static String toUtf8String(String s) { StringBuffer sb = new StringBuffer(); for (int i=0;i<s.length();i++) { char c = s.charAt(i); if (c >= 0 && c <= 255) { sb.append(c); } else { byte[] b; try { b = Character.toString(c).getBytes("utf-8"); } catch (Exception ex) { System.out.println(ex); b = new byte[0]; } for (int j = 0; j < b.length; j++) { int k = b[j]; if (k < 0) k += 256; sb.append("%" + Integer.toHexString(k). toUpperCase()); } } } return sb.toString(); } public static String asciiToUnicode(String source){ Pattern pattern = Pattern.compile("\\\\u(\\p{XDigit}{4})"); java.util.regex.Matcher matcher = pattern.matcher(source); StringBuffer buf = new StringBuffer(200); System.out.println(""+matcher.groupCount()); while (matcher.find()) { char ch = (char) Integer.parseInt(matcher.group(1), 16); System.out.println(""+ch); buf.append(ch); } return buf.toString(); } //取整数(两个时间相减) public static String getItemnumber(String number){ if(number==null||number.length()==0) return "1"; float f = Float.valueOf(number); return new Double(Math.ceil(f)).intValue()+""; } //取季度的开始时间和结束时间 public static Date[] getQuarter(int year,int quarter){ int monthst = 1; int monthet = 3; switch(quarter){ case 2:{monthst = 4;monthet=6;break;} case 3:{monthst = 7;monthet=9;break;} case 4:{monthst = 10;monthet=12;break;} case 6:{monthst = 1;monthet=6;break;} //上半年 case 12:{monthst = 7;monthet=12;break;} //下半年 default:{monthst=1;monthet=3;break;} } Calendar cal = Calendar.getInstance(); cal.set(year,monthst-1,1); Date[] date1 = getMonthStartAndEndDate(cal.getTime()); cal.set(year,monthet-1,1); Date[] date2 = getMonthStartAndEndDate(cal.getTime()); return new Date[]{date1[0],date2[1]}; } //取出两个时间之间的天数 public static List getBetweebTimes(String startstr,String endstr,int index){ Timestamp startTime = null; Timestamp endTime = null; Timestamp currtime = new Timestamp(System.currentTimeMillis()); Timestamp beforeDate = SfUtil.TimestampTo(currtime,1);//取昨天日期 if(startstr==null&&endstr==null){ startTime = SfUtil.TimestampTo(currtime,15); endTime = beforeDate; }else{ if(startstr!=null){ startstr = startstr + " 00:00"; startTime = SfUtil.stringToTimestamp(startstr,null); if(endstr==null) endTime = beforeDate; } if(endstr!=null){ endstr = endstr + " 00:00"; endTime = SfUtil.stringToTimestamp(endstr,null); if(startstr == null) startTime = SfUtil.TimestampTo(currtime,15); } } return getTimeBetweeb(startTime,endTime,index); } //取出两个时间之间的天数(按不同的格式) public static List getTimeBetweeb(Timestamp startTime,Timestamp endTime,int index){ long MS_SECOND = 1000; long MS_MINUTE = 60 * MS_SECOND; long MS_HOUR = 60 * MS_MINUTE ; long MS_DAY = 24 * MS_HOUR; startTime = getDayTime(startTime,1); endTime = getDayTime(endTime,1); System.out.println("startTime == "+startTime); System.out.println("endTime == "+endTime); java.util.Date start = startTime; java.util.Date end = endTime; List days = new ArrayList(); for(java.util.Date d=start;!d.after(end)||d.equals(end);){ Timestamp time = new Timestamp(d.getTime()); String yyyymmdd = getDateFormat(time,index); days.add(yyyymmdd); d = new java.util.Date(d.getTime() + MS_DAY); } return days; } public static void main(String[] args){ /*Timestamp time = stringToTimestamp("2008-06-01 00:00",null); Timestamp time1 = getlastMonthday(time); System.out.println(""+time1); Date[] dates = getMonthStartAndEndDate(time); System.out.println(""+new Timestamp(dates[0].getTime())); System.out.println(""+new Timestamp(dates[1].getTime()));*/ /*Calendar cal = Calendar.getInstance(); cal.setTimeInMillis(System.currentTimeMillis()); System.out.println(""+cal.get(Calendar.YEAR)); System.out.println(""+(cal.get(Calendar.MONTH)+1)); */ /*Calendar cal = Calendar.getInstance(); cal.setTimeInMillis(System.currentTimeMillis()); for(int i=0;i<38;i++){ cal.set(Calendar.DATE,Calendar.DAY_OF_WEEK+i); System.out.println(""+new Timestamp(cal.getTimeInMillis())); }*/ //Timestamp today = new Timestamp(System.currentTimeMillis()); //String str = getDateFormat(today,5); //System.out.println(str + " "+stringToTimestamp(getYesterdayByToday(str,1,-1)+" 00:00",null)); //System.out.println(""+new Timestamp(getDayBetweeb(today,19,40).getTime())); String abb = "妇女的典范\\u2014\\u2014符桂花同志的优秀事迹"; String abc = "国防大学\"成功\"研究成功!"; //abb = java.net.URLEncoder.encode(abb); //abb = java.net.URLDecoder.decode(abb); //String abb1 = asciiToUnicode(abb); System.out.println(""+abc.replaceAll("\"","“").replaceAll("\"","”")); System.out.println("全角转半角 === "+QBchange(abc)); System.out.println("半角转全角 === "+BQchange(abc)); System.out.println(""+new Double(Math.ceil(Float.valueOf(10.5315972222222f))).intValue()); System.out.println(""+getItemnumber("-10.5315972222222")); System.out.println(""+stanValueDeEncode("gggggHrr")); System.out.println(""+TimestampTo(null,1)); /*SfUtil u = new SfUtil(); Object[] obj = u.getBetweebTimes("2008-08-28","2008-08-28",7); for(int i=0;i<obj.length;i++){ System.out.println("obj === "+obj[i]); } */ Date[] date = getQuarter(2008,12); System.out.println(" "+new Timestamp(date[0].getTime())); System.out.println(" "+new Timestamp(date[1].getTime())); } }
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