最全的java时间处理工具类

package com.momo.util;
import java.io.Serializable;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
/**
* @company:hrj
* @author:章小飞
* @since:2007-12-31
* @description:该类为时间处理工具类，主要完成时间的秒数转换、字符串转换
*/
@SuppressWarnings("serial")
public class SysDateFormat implements Serializable{
/**
  * 获得当前时间对格林威治标准时间 1970 年 1 月 1 日的 00:00:00.000（格里高利历）的偏移量秒数
  */
public static int getCurrentSecond(){
  GregorianCalendar gCalendar=new GregorianCalendar();//格里高利历
  return (int) (gCalendar.getTimeInMillis()/1000);
}
/**
  * 获得当天0点0分的标准格林威治时间（秒）
  * @return
  */
public static int getCurrentDaySecond(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}
/**
  * 获得当天0点0分的标准格林威治时间（毫秒）
  * @return
  */
public static long getCurrentDayStartMilli(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return gCalendar.getTimeInMillis();
}

/**
  * 获得当月1日0点0分标准格林威治时间
  * @return
  */
public static int getCurrentMonthSecond(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.set(Calendar.DATE, 1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}
/**
  * 获得当季度1日0点0分标准格林威治时间
  * @return
  */
public static int getCurrentSeasonSecond(){
  String str=SysDateFormat.getDateStringAllFromSeconds(getCurrentDaySecond());
  str=str.substring(5,7);
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis((long)getCurrentDaySecond()*1000);
  if(str.equals("01")||str.equals("02")||str.equals("03")){
   gCalendar.set(GregorianCalendar.MONTH, GregorianCalendar.JANUARY);
  }else if(str.equals("04")||str.equals("05")||str.equals("06")){
   gCalendar.set(GregorianCalendar.MONTH, GregorianCalendar.JUNE);
  }else if(str.equals("07")||str.equals("08")||str.equals("09")){
   gCalendar.set(GregorianCalendar.MONTH, GregorianCalendar.JULY);
  }else if(str.equals("10")||str.equals("11")||str.equals("12")){
   gCalendar.set(GregorianCalendar.MONTH, GregorianCalendar.OCTOBER);
  }
  gCalendar.set(GregorianCalendar.DAY_OF_MONTH, 1);
  gCalendar.set(GregorianCalendar.HOUR_OF_DAY, 12);
  gCalendar.set(GregorianCalendar.MINUTE, 0);
  gCalendar.set(GregorianCalendar.SECOND, 0);
  gCalendar.set(GregorianCalendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}
/**
  * 获得当年1月1日0点0分的标准格林威治时间
  * @return
  */
public static int getCurrentYearSecond(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.set(Calendar.MONTH, 0);
  gCalendar.set(Calendar.DATE, 1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}

/**
  * 获得当前日期前一天0时0分的标准格林威治时间
  * @return
  */
public static int getLastDaySecond(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.add(Calendar.DATE, -1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}

/**
  * 获得当前日期下一天0时0分的标准格林威治时间（秒）
  * @return
  */
public static int getNextDaySecond(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.add(Calendar.DATE, 1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}
/**
  * 获得当前日期下一天0时0分的标准格林威治时间（毫秒）
  * @return
  */
public static long getNextDayStartMilli(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.add(Calendar.DATE, 1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return gCalendar.getTimeInMillis();
}
/**
  * 获得当前月份前一个月1号0时0分的标准格林威治时间
  * @return
  */
public static int getLastMonthSecond(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.add(Calendar.MONTH, -1);
  gCalendar.set(Calendar.DATE, 1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}
/**
  * 获得当前月份下一个月1号0时0分的标准格林威治时间
  * @return
  */
public static int getNextMonthSecond(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.add(Calendar.MONTH, 1);
  gCalendar.set(Calendar.DATE, 1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}
/**
  * 获得当前年份上一年1月1日的0时0分标准格林威治时间
  * @return
  */
public static int getLastYearSecond(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.add(Calendar.YEAR, -1);
  gCalendar.set(Calendar.MONTH, 0);
  gCalendar.set(Calendar.DATE, 1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}
/**
  * 获得当前年份下一年1月1日0时0分你的标准格林威治时间
  * @return
  */
public static int getNextYesrSecond(){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.add(Calendar.YEAR, 1);
  gCalendar.set(Calendar.MONTH, 0);
  gCalendar.set(Calendar.DATE, 1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}
/**
  * 从一个指定的秒数获得所在天的起始时间点(秒)
  * @param second
  * @return
  */
public static int getDayStartSecondFromInt(int second){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis((long)second*1000);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}
/**
  * 从一个指定的秒数获得所在天的下一天起始时间点(秒)
  * @param second
  * @return
  */
public static int getNextDayStartSecondFromInt(int second){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis((long)second*1000);
  gCalendar.add(Calendar.DATE, 1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}

/**
  * 从一个指定的秒数获得所在天的前一天起始时间点(秒)
  * @param second
  * @return
  */
public static int getLastDayStartSecondFromInt(int second){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis((long)second*1000);
  gCalendar.add(Calendar.DATE, -1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}

/**
  * 从一个指定的秒数获得所在天的前一天起始时间点(毫秒)
  * @param milli
  * @return
  */
public static long getLastDayStartMilliFromInt(long milli){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis(milli);
  gCalendar.add(Calendar.DATE, -1);
  gCalendar.set(Calendar.HOUR, 0);
  gCalendar.set(Calendar.MINUTE,0);
  gCalendar.set(Calendar.SECOND, 0);
  gCalendar.set(Calendar.MILLISECOND, 0);
  return gCalendar.getTimeInMillis();
}

//获得当前日期的字符串表示
public static String getCurrentDateString(){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd");
  GregorianCalendar gCalendar=new GregorianCalendar();
  return sFormat.format(gCalendar.getTime());
}

//获得当前日期的完整字符串表示
public static String getCurrentDateStringAll(){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  GregorianCalendar gCalendar=new GregorianCalendar();
  return sFormat.format(gCalendar.getTime());
}

//获得当前时间的字符串表示
public static String getCurrentTime(){
  SimpleDateFormat sFormat=new SimpleDateFormat("kk:mm:ss");
  GregorianCalendar gCalendar=new GregorianCalendar();
  return sFormat.format(gCalendar.getTime());
}
//获得当前日期前一天的字符串表示
public static String getYesterdayTimeString(){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd");
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.add(Calendar.DATE, -1);
  return sFormat.format(gCalendar.getTime());
}

//获得指定日期字符串的毫秒数
public static long getMilliFromString(String dateStr){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  GregorianCalendar gCalendar=new GregorianCalendar();
  try {
   Date date=sFormat.parse(dateStr);
   gCalendar.setTime(date);
  } catch (ParseException e) {
   e.printStackTrace();
  }
  return gCalendar.getTimeInMillis();
}

//获得指定数值的日期字符串表示……毫秒
public static String getDateStringFromMilliSeconds(long minSeconds){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd");
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis(minSeconds);
  return sFormat.format(gCalendar.getTime());
}
//获得指定数值的日期字符串全表示……毫秒
public static String getDateStringAllFromMilliSeconds(long minSeconds){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis(minSeconds);
  return sFormat.format(gCalendar.getTime());
}

//获得指定数值的日期字符串表示……秒
public static String getDateStringFromSeconds(long seconds){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd");
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis(seconds*1000);
  return sFormat.format(gCalendar.getTime());
}

//获得指定数值的日期字符串全表示……秒
public static String getDateStringAllFromSeconds(long seconds){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis(seconds*1000);
  return sFormat.format(gCalendar.getTime());
}

//获得指定日期字符串的日期(当天起始点0时0分0秒)……秒
public static int getStartSecondFromStr(String dateStr){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd");
  GregorianCalendar gCalendar=new GregorianCalendar();
  int result=0;
  try {
   Date date=sFormat.parse(dateStr);
   gCalendar.setTime(date);
   gCalendar.set(GregorianCalendar.HOUR_OF_DAY, 0);
   gCalendar.set(GregorianCalendar.MINUTE, 0);
   gCalendar.set(GregorianCalendar.SECOND, 0);
   result=(int)(gCalendar.getTimeInMillis()/1000);
  } catch (ParseException e) {
   e.printStackTrace();
  }
  return result;
}

// 获得指定日期字符串的日期(当天起始点0时0分0秒)……毫秒
public static long getStartMillisFromStr(String dateStr){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd");
  GregorianCalendar gCalendar=new GregorianCalendar();
  long result=0;
  try {
   Date date=sFormat.parse(dateStr);
   gCalendar.setTime(date);
   gCalendar.set(GregorianCalendar.HOUR_OF_DAY, 0);
   gCalendar.set(GregorianCalendar.MINUTE, 0);
   gCalendar.set(GregorianCalendar.SECOND, 0);
   result=gCalendar.getTimeInMillis();
  } catch (ParseException e) {
   e.printStackTrace();
  }
  return result;
}

//获得指定日期字符串的日期(当天中午12点0分0秒)……秒
public static int getMiddleSecondFromStr(String dateStr){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd");
  GregorianCalendar gCalendar=new GregorianCalendar();
  int result=0;
  try {
   Date date=sFormat.parse(dateStr);
   gCalendar.setTime(date);
   gCalendar.set(GregorianCalendar.HOUR_OF_DAY, 12);
   gCalendar.set(GregorianCalendar.MINUTE, 0);
   gCalendar.set(GregorianCalendar.SECOND, 0);
   result=(int)(gCalendar.getTimeInMillis()/1000);
  } catch (ParseException e) {
   e.printStackTrace();
  }
  return result;
}

//获得指定日期字符串的日期(当天最后点23时59分59秒)……秒
public static int getEndSecondFromStr(String dateStr){
  SimpleDateFormat sFormat=new SimpleDateFormat("yyyy-MM-dd");
  GregorianCalendar gCalendar=new GregorianCalendar();
  int result=0;
  try {
   Date date=sFormat.parse(dateStr);
   gCalendar.setTime(date);
   gCalendar.set(GregorianCalendar.HOUR_OF_DAY, 23);
   gCalendar.set(GregorianCalendar.MINUTE, 59);
   gCalendar.set(GregorianCalendar.SECOND, 59);
   result=(int)(gCalendar.getTimeInMillis()/1000);
  } catch (ParseException e) {
   e.printStackTrace();
  }
  return result;
}

//获得指定日期（秒）所在月份第一天中午12点的秒数
public static int getStartDayOfMonthFromSecond(long seconds){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis(seconds*1000);
  gCalendar.set(GregorianCalendar.DAY_OF_MONTH, 1);
  gCalendar.set(GregorianCalendar.HOUR_OF_DAY, 12);
  gCalendar.set(GregorianCalendar.MINUTE, 0);
  gCalendar.set(GregorianCalendar.SECOND, 0);
  gCalendar.set(GregorianCalendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}

//获得指定日期（秒）所在季度第一天中午12点的秒数
public static int getStartDayOfSeasonFromSecond(long seconds){
  String str=SysDateFormat.getDateStringAllFromSeconds(seconds);
  str=str.substring(5,7);
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis(seconds*1000);
  if(str.equals("01")||str.equals("02")||str.equals("03")){
   gCalendar.set(GregorianCalendar.MONTH, GregorianCalendar.JANUARY);
  }else if(str.equals("04")||str.equals("05")||str.equals("06")){
   gCalendar.set(GregorianCalendar.MONTH, GregorianCalendar.JUNE);
  }else if(str.equals("07")||str.equals("08")||str.equals("09")){
   gCalendar.set(GregorianCalendar.MONTH, GregorianCalendar.JULY);
  }else if(str.equals("10")||str.equals("11")||str.equals("12")){
   gCalendar.set(GregorianCalendar.MONTH, GregorianCalendar.OCTOBER);
  }
  gCalendar.set(GregorianCalendar.DAY_OF_MONTH, 1);
  gCalendar.set(GregorianCalendar.HOUR_OF_DAY, 12);
  gCalendar.set(GregorianCalendar.MINUTE, 0);
  gCalendar.set(GregorianCalendar.SECOND, 0);
  gCalendar.set(GregorianCalendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}
//获得指定日期（秒）所在年份第一天中午12点的秒数
public static int getStartDayOfYearFromSecond(long seconds){
  GregorianCalendar gCalendar=new GregorianCalendar();
  gCalendar.setTimeInMillis(seconds*1000);
  gCalendar.set(GregorianCalendar.DAY_OF_YEAR, 1);
  gCalendar.set(GregorianCalendar.HOUR_OF_DAY, 12);
  gCalendar.set(GregorianCalendar.MINUTE, 0);
  gCalendar.set(GregorianCalendar.SECOND, 0);
  gCalendar.set(GregorianCalendar.MILLISECOND, 0);
  return (int) (gCalendar.getTimeInMillis()/1000);
}

public static void main(String[] args){
  int timeInt=1199142900;
  System.out.println(SysDateFormat.getDateStringAllFromSeconds(timeInt));
  int time=getDayStartSecondFromInt(timeInt);
  String str=SysDateFormat.getDateStringAllFromSeconds(time);
  System.out.println(str);
  int time2=getNextDayStartSecondFromInt(timeInt);
  String str2=SysDateFormat.getDateStringAllFromSeconds(time2);
  System.out.println(str2);
}
}

摘自江湖Ext

posted @ 2012-08-06 21:03 _落雨阅读(418) 评论(0) 编辑收藏举报

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最全的java时间处理工具类

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