1 import java.util.*;  2 import java.text.*;  3 import java.util.Calendar;  4   5 public class VeDate {  6  /**  7   * 获取现在时间  8   *   9   * @return 返回时间类型 yyyy-MM-dd HH:mm:ss 10   */ 11  public static Date getNowDate() { 12   Date currentTime = new Date(); 13   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 14   String dateString = formatter.format(currentTime); 15   ParsePosition pos = new ParsePosition(8); 16   Date currentTime_2 = formatter.parse(dateString, pos); 17   return currentTime_2; 18  } 19  20  /** 21   * 获取现在时间 22   *  23   * @return返回短时间格式 yyyy-MM-dd 24   */ 25  public static Date getNowDateShort() { 26   Date currentTime = new Date(); 27   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); 28   String dateString = formatter.format(currentTime); 29   ParsePosition pos = new ParsePosition(8); 30   Date currentTime_2 = formatter.parse(dateString, pos); 31   return currentTime_2; 32  } 33  34  /** 35   * 获取现在时间 36   *  37   * @return返回字符串格式 yyyy-MM-dd HH:mm:ss 38   */ 39  public static String getStringDate() { 40   Date currentTime = new Date(); 41   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 42   String dateString = formatter.format(currentTime); 43   return dateString; 44  } 45  46  /** 47   * 获取现在时间 48   *  49   * @return 返回短时间字符串格式yyyy-MM-dd 50   */ 51  public static String getStringDateShort() { 52   Date currentTime = new Date(); 53   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); 54   String dateString = formatter.format(currentTime); 55   return dateString; 56  } 57  58  /** 59   * 获取时间 小时:分;秒 HH:mm:ss 60   *  61   * @return 62   */ 63  public static String getTimeShort() { 64   SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss"); 65   Date currentTime = new Date(); 66   String dateString = formatter.format(currentTime); 67   return dateString; 68  } 69  70  /** 71   * 将长时间格式字符串转换为时间 yyyy-MM-dd HH:mm:ss 72   *  73   * @param strDate 74   * @return 75   */ 76  public static Date strToDateLong(String strDate) { 77   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 78   ParsePosition pos = new ParsePosition(0); 79   Date strtodate = formatter.parse(strDate, pos); 80   return strtodate; 81  } 82  83  /** 84   * 将长时间格式时间转换为字符串 yyyy-MM-dd HH:mm:ss 85   *  86   * @param dateDate 87   * @return 88   */ 89  public static String dateToStrLong(java.util.Date dateDate) { 90   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 91   String dateString = formatter.format(dateDate); 92   return dateString; 93  } 94  95  /** 96   * 将短时间格式时间转换为字符串 yyyy-MM-dd 97   *  98   * @param dateDate 99   * @param k100   * @return101   */102  public static String dateToStr(java.util.Date dateDate) {103   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");104   String dateString = formatter.format(dateDate);105   return dateString;106  }107 108  /**109   * 将短时间格式字符串转换为时间 yyyy-MM-dd 110   * 111   * @param strDate112   * @return113   */114  public static Date strToDate(String strDate) {115   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");116   ParsePosition pos = new ParsePosition(0);117   Date strtodate = formatter.parse(strDate, pos);118   return strtodate;119  }120 121  /**122   * 得到现在时间123   * 124   * @return125   */126  public static Date getNow() {127   Date currentTime = new Date();128   return currentTime;129  }130 131  /**132   * 提取一个月中的最后一天133   * 134   * @param day135   * @return136   */137  public static Date getLastDate(long day) {138   Date date = new Date();139   long date_3_hm = date.getTime() - 3600000 * 34 * day;140   Date date_3_hm_date = new Date(date_3_hm);141   return date_3_hm_date;142  }143 144  /**145   * 得到现在时间146   * 147   * @return 字符串 yyyyMMdd HHmmss148   */149  public static String getStringToday() {150   Date currentTime = new Date();151   SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd HHmmss");152   String dateString = formatter.format(currentTime);153   return dateString;154  }155 156  /**157   * 得到现在小时158   */159  public static String getHour() {160   Date currentTime = new Date();161   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");162   String dateString = formatter.format(currentTime);163   String hour;164   hour = dateString.substring(11, 13);165   return hour;166  }167 168  /**169   * 得到现在分钟170   * 171   * @return172   */173  public static String getTime() {174   Date currentTime = new Date();175   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");176   String dateString = formatter.format(currentTime);177   String min;178   min = dateString.substring(14, 16);179   return min;180  }181 182  /**183   * 根据用户传入的时间表示格式，返回当前时间的格式 如果是yyyyMMdd，注意字母y不能大写。184   * 185   * @param sformat186   *            yyyyMMddhhmmss187   * @return188   */189  public static String getUserDate(String sformat) {190   Date currentTime = new Date();191   SimpleDateFormat formatter = new SimpleDateFormat(sformat);192   String dateString = formatter.format(currentTime);193   return dateString;194  }195 196  /**197   * 二个小时时间间的差值,必须保证二个时间都是"HH:MM"的格式，返回字符型的分钟198   */199  public static String getTwoHour(String st1, String st2) {200   String[] kk = null;201   String[] jj = null;202   kk = st1.split(":");203   jj = st2.split(":");204   if (Integer.parseInt(kk[0]) < Integer.parseInt(jj[0]))205    return "0";206   else {207    double y = Double.parseDouble(kk[0]) + Double.parseDouble(kk[1]) / 60;208    double u = Double.parseDouble(jj[0]) + Double.parseDouble(jj[1]) / 60;209    if ((y - u) > 0)210     return y - u + "";211    else212     return "0";213   }214  }215 216  /**217   * 得到二个日期间的间隔天数218   */219  public static String getTwoDay(String sj1, String sj2) {220   SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");221   long day = 0;222   try {223    java.util.Date date = myFormatter.parse(sj1);224    java.util.Date mydate = myFormatter.parse(sj2);225    day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);226   } catch (Exception e) {227    return "";228   }229   return day + "";230  }231 232  /**233   * 时间前推或后推分钟,其中JJ表示分钟.234   */235  public static String getPreTime(String sj1, String jj) {236   SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");237   String mydate1 = "";238   try {239    Date date1 = format.parse(sj1);240    long Time = (date1.getTime() / 1000) + Integer.parseInt(jj) * 60;241    date1.setTime(Time * 1000);242    mydate1 = format.format(date1);243   } catch (Exception e) {244   }245   return mydate1;246  }247 248  /**249   * 得到一个时间延后或前移几天的时间,nowdate为时间,delay为前移或后延的天数250   */251  public static String getNextDay(String nowdate, String delay) {252   try{253   SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");254   String mdate = "";255   Date d = strToDate(nowdate);256   long myTime = (d.getTime() / 1000) + Integer.parseInt(delay) * 24 * 60 * 60;257   d.setTime(myTime * 1000);258   mdate = format.format(d);259   return mdate;260   }catch(Exception e){261    return "";262   }263  }264 265  /**266   * 判断是否润年267   * 268   * @param ddate269   * @return270   */271  public static boolean isLeapYear(String ddate) {272 273   /**274    * 详细设计： 1.被400整除是闰年，否则： 2.不能被4整除则不是闰年 3.能被4整除同时不能被100整除则是闰年275    * 3.能被4整除同时能被100整除则不是闰年276    */277   Date d = strToDate(ddate);278   GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance();279   gc.setTime(d);280   int year = gc.get(Calendar.YEAR);281   if ((year % 400) == 0)282    return true;283   else if ((year % 4) == 0) {284    if ((year % 100) == 0)285     return false;286    else287     return true;288   } else289    return false;290  }291 292  /**293   * 返回美国时间格式 26 Apr 2006294   * 295   * @param str296   * @return297   */298  public static String getEDate(String str) {299   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");300   ParsePosition pos = new ParsePosition(0);301   Date strtodate = formatter.parse(str, pos);302   String j = strtodate.toString();303   String[] k = j.split(" ");304   return k[2] + k[1].toUpperCase() + k[5].substring(2, 4);305  }306 307  /**308   * 获取一个月的最后一天309   * 310   * @param dat311   * @return312   */313  public static String getEndDateOfMonth(String dat) {// yyyy-MM-dd314   String str = dat.substring(0, 8);315   String month = dat.substring(5, 7);316   int mon = Integer.parseInt(month);317   if (mon == 1 || mon == 3 || mon == 5 || mon == 7 || mon == 8 || mon == 10 || mon == 12) {318    str += "31";319   } else if (mon == 4 || mon == 6 || mon == 9 || mon == 11) {320    str += "30";321   } else {322    if (isLeapYear(dat)) {323     str += "29";324    } else {325     str += "28";326    }327   }328   return str;329  }330 331  /**332   * 判断二个时间是否在同一个周333   * 334   * @param date1335   * @param date2336   * @return337   */338  public static boolean isSameWeekDates(Date date1, Date date2) {339   Calendar cal1 = Calendar.getInstance();340   Calendar cal2 = Calendar.getInstance();341   cal1.setTime(date1);342   cal2.setTime(date2);343   int subYear = cal1.get(Calendar.YEAR) - cal2.get(Calendar.YEAR);344   if (0 == subYear) {345    if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))346     return true;347   } else if (1 == subYear && 11 == cal2.get(Calendar.MONTH)) {348    // 如果12月的最后一周横跨来年第一周的话则最后一周即算做来年的第一周349    if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))350     return true;351   } else if (-1 == subYear && 11 == cal1.get(Calendar.MONTH)) {352    if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))353     return true;354   }355   return false;356  }357 358  /**359   * 产生周序列,即得到当前时间所在的年度是第几周360   * 361   * @return362   */363  public static String getSeqWeek() {364   Calendar c = Calendar.getInstance(Locale.CHINA);365   String week = Integer.toString(c.get(Calendar.WEEK_OF_YEAR));366   if (week.length() == 1)367    week = "0" + week;368   String year = Integer.toString(c.get(Calendar.YEAR));369   return year + week;370  }371 372  /**373   * 获得一个日期所在的周的星期几的日期，如要找出2002年2月3日所在周的星期一是几号374   * 375   * @param sdate376   * @param num377   * @return378   */379  public static String getWeek(String sdate, String num) {380   // 再转换为时间381   Date dd = VeDate.strToDate(sdate);382   Calendar c = Calendar.getInstance();383   c.setTime(dd);384   if (num.equals("1")) // 返回星期一所在的日期385    c.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);386   else if (num.equals("2")) // 返回星期二所在的日期387    c.set(Calendar.DAY_OF_WEEK, Calendar.TUESDAY);388   else if (num.equals("3")) // 返回星期三所在的日期389    c.set(Calendar.DAY_OF_WEEK, Calendar.WEDNESDAY);390   else if (num.equals("4")) // 返回星期四所在的日期391    c.set(Calendar.DAY_OF_WEEK, Calendar.THURSDAY);392   else if (num.equals("5")) // 返回星期五所在的日期393    c.set(Calendar.DAY_OF_WEEK, Calendar.FRIDAY);394   else if (num.equals("6")) // 返回星期六所在的日期395    c.set(Calendar.DAY_OF_WEEK, Calendar.SATURDAY);396   else if (num.equals("0")) // 返回星期日所在的日期397    c.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);398   return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime());399  }400 401  /**402   * 根据一个日期，返回是星期几的字符串403   * 404   * @param sdate405   * @return406   */407  public static String getWeek(String sdate) {408   // 再转换为时间409   Date date = VeDate.strToDate(sdate);410   Calendar c = Calendar.getInstance();411   c.setTime(date);412   // int hour=c.get(Calendar.DAY_OF_WEEK);413   // hour中存的就是星期几了，其范围 1~7414   // 1=星期日 7=星期六，其他类推415   return new SimpleDateFormat("EEEE").format(c.getTime());416  }417  public static String getWeekStr(String sdate){418   String str = "";419   str = VeDate.getWeek(sdate);420   if("1".equals(str)){421    str = "星期日";422   }else if("2".equals(str)){423    str = "星期一";424   }else if("3".equals(str)){425    str = "星期二";426   }else if("4".equals(str)){427    str = "星期三";428   }else if("5".equals(str)){429    str = "星期四";430   }else if("6".equals(str)){431    str = "星期五";432   }else if("7".equals(str)){433    str = "星期六";434   }435   return str;436  }437 438  /**439   * 两个时间之间的天数440   * 441   * @param date1442   * @param date2443   * @return444   */445  public static long getDays(String date1, String date2) {446   if (date1 == null || date1.equals(""))447    return 0;448   if (date2 == null || date2.equals(""))449    return 0;450   // 转换为标准时间451   SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");452   java.util.Date date = null;453   java.util.Date mydate = null;454   try {455    date = myFormatter.parse(date1);456    mydate = myFormatter.parse(date2);457   } catch (Exception e) {458   }459   long day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);460   return day;461  }462 463  /**464   * 形成如下的日历 ， 根据传入的一个时间返回一个结构 星期日 星期一 星期二 星期三 星期四 星期五 星期六 下面是当月的各个时间465   * 此函数返回该日历第一行星期日所在的日期466   * 467   * @param sdate468   * @return469   */470  public static String getNowMonth(String sdate) {471   // 取该时间所在月的一号472   sdate = sdate.substring(0, 8) + "01";473 474   // 得到这个月的1号是星期几475   Date date = VeDate.strToDate(sdate);476   Calendar c = Calendar.getInstance();477   c.setTime(date);478   int u = c.get(Calendar.DAY_OF_WEEK);479   String newday = VeDate.getNextDay(sdate, (1 - u) + "");480   return newday;481  }482 483  /**484   * 取得数据库主键 生成格式为yyyymmddhhmmss+k位随机数485   * 486   * @param k487   *            表示是取几位随机数，可以自己定488   */489 490  public static String getNo(int k) {491 492   return getUserDate("yyyyMMddhhmmss") + getRandom(k);493  }494 495  /**496   * 返回一个随机数497   * 498   * @param i499   * @return500   */501  public static String getRandom(int i) {502   Random jjj = new Random();503   // int suiJiShu = jjj.nextInt(9);504   if (i == 0)505    return "";506   String jj = "";507   for (int k = 0; k < i; k++) {508    jj = jj + jjj.nextInt(9);509   }510   return jj;511  }512 513  /**514   * 515   * @param args516   */517  public static boolean RightDate(String date) {518 519   SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");520   ;521   if (date == null)522    return false;523   if (date.length() > 10) {524    sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");525   } else {526    sdf = new SimpleDateFormat("yyyy-MM-dd");527   }528   try {529    sdf.parse(date);530   } catch (ParseException pe) {531    return false;532   }533   return true;534  }535 536  /***************************************************************************537   * //nd=1表示返回的值中包含年度 //yf=1表示返回的值中包含月份 //rq=1表示返回的值中包含日期 //format表示返回的格式 1538   * 以年月日中文返回 2 以横线-返回 // 3 以斜线/返回 4 以缩写不带其它符号形式返回 // 5 以点号.返回539   **************************************************************************/540  public static String getStringDateMonth(String sdate, String nd, String yf, String rq, String format) {541   Date currentTime = new Date();542   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");543   String dateString = formatter.format(currentTime);544   String s_nd = dateString.substring(0, 4); // 年份545   String s_yf = dateString.substring(5, 7); // 月份546   String s_rq = dateString.substring(8, 10); // 日期547   String sreturn = "";548   roc.util.MyChar mc = new roc.util.MyChar();549   if (sdate == null || sdate.equals("") || !mc.Isdate(sdate)) { // 处理空值情况550    if (nd.equals("1")) {551     sreturn = s_nd;552     // 处理间隔符553     if (format.equals("1"))554      sreturn = sreturn + "年";555     else if (format.equals("2"))556      sreturn = sreturn + "-";557     else if (format.equals("3"))558      sreturn = sreturn + "/";559     else if (format.equals("5"))560      sreturn = sreturn + ".";561    }562    // 处理月份563    if (yf.equals("1")) {564     sreturn = sreturn + s_yf;565     if (format.equals("1"))566      sreturn = sreturn + "月";567     else if (format.equals("2"))568      sreturn = sreturn + "-";569     else if (format.equals("3"))570      sreturn = sreturn + "/";571     else if (format.equals("5"))572      sreturn = sreturn + ".";573    }574    // 处理日期575    if (rq.equals("1")) {576     sreturn = sreturn + s_rq;577     if (format.equals("1"))578      sreturn = sreturn + "日";579    }580   } else {581    // 不是空值，也是一个合法的日期值，则先将其转换为标准的时间格式582    sdate = roc.util.RocDate.getOKDate(sdate);583    s_nd = sdate.substring(0, 4); // 年份584    s_yf = sdate.substring(5, 7); // 月份585    s_rq = sdate.substring(8, 10); // 日期586    if (nd.equals("1")) {587     sreturn = s_nd;588     // 处理间隔符589     if (format.equals("1"))590      sreturn = sreturn + "年";591     else if (format.equals("2"))592      sreturn = sreturn + "-";593     else if (format.equals("3"))594      sreturn = sreturn + "/";595     else if (format.equals("5"))596      sreturn = sreturn + ".";597    }598    // 处理月份599    if (yf.equals("1")) {600     sreturn = sreturn + s_yf;601     if (format.equals("1"))602      sreturn = sreturn + "月";603     else if (format.equals("2"))604      sreturn = sreturn + "-";605     else if (format.equals("3"))606      sreturn = sreturn + "/";607     else if (format.equals("5"))608      sreturn = sreturn + ".";609    }610    // 处理日期611    if (rq.equals("1")) {612     sreturn = sreturn + s_rq;613     if (format.equals("1"))614      sreturn = sreturn + "日";615    }616   }617   return sreturn;618  }619 620  public static String getNextMonthDay(String sdate, int m) {621   sdate = getOKDate(sdate);622   int year = Integer.parseInt(sdate.substring(0, 4));623   int month = Integer.parseInt(sdate.substring(5, 7));624   month = month + m;625   if (month < 0) {626    month = month + 12;627    year = year - 1;628   } else if (month > 12) {629    month = month - 12;630    year = year + 1;631   }632   String smonth = "";633   if (month < 10)634    smonth = "0" + month;635   else636    smonth = "" + month;637   return year + "-" + smonth + "-10";638  }639 640  public static String getOKDate(String sdate) {641   if (sdate == null || sdate.equals(""))642    return getStringDateShort();643 644   if (!VeStr.Isdate(sdate)) {645    sdate = getStringDateShort();646   }647   // 将“/”转换为“-”648   sdate = VeStr.Replace(sdate, "/", "-");649   // 如果只有8位长度，则要进行转换650   if (sdate.length() == 8)651    sdate = sdate.substring(0, 4) + "-" + sdate.substring(4, 6) + "-" + sdate.substring(6, 8);652   SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");653   ParsePosition pos = new ParsePosition(0);654   Date strtodate = formatter.parse(sdate, pos);655   String dateString = formatter.format(strtodate);656   return dateString;657  }658 659  public static void main(String[] args) throws Exception {660   try {661    //System.out.print(Integer.valueOf(getTwoDay("2006-11-03 12:22:10", "2006-11-02 11:22:09")));662   } catch (Exception e) {663    throw new Exception();664   }665   //System.out.println("sss");666  }