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java判断今天,昨天,前天,不能用秒间隔的简单实例

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实例如下:

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一 json optString 解析的TimesTamp string
 
long dateSec = ( long ) (Double.valueOf(timestamp) * 1000 );
 
三 Date date= new Date(dateSec);
 
四 getTimestampString(date);
 
public static String getTimestampString(Date paramDate) {
     String str = null ;
     long l = paramDate.getTime();
     Calendar localCalendar = GregorianCalendar.getInstance();
     localCalendar.setTime(paramDate);
     int year = localCalendar.get(Calendar.YEAR);
     if (! isSameYear(year)){ //去年,直接返回
       String paramDate2str = new SimpleDateFormat( "yyyy MM dd" , Locale.CHINA).format(paramDate);
       return paramDate2str;
     }
 
 
     if (isSameDay(l)) {
       int i = localCalendar.get(Calendar.HOUR_OF_DAY);
       if (i > 17 ) {
         str = "晚上 HH:mm" ; //HH表示24小时,hh表示12小时进制,
       } else if ((i >= 0 ) && (i <= 6 )) {
         str = "凌晨 HH:mm" ;
       } else if ((i > 11 ) && (i <= 17 )) {
         str = "下午 HH:mm" ;
       } else {
         str = "上午 HH:mm" ;
       }
     } else if (isYesterday(l)) {
       str = "昨天 HH:mm" ;
     } else if (isBeforeYesterday(l)) {
       str = "前天 HH:mm" ;
     } else {
       str = "M月d日 HH:mm" ;
     }
     String paramDate2str = new SimpleDateFormat(str, Locale.CHINA).format(paramDate);
     return paramDate2str;
   }
 
。。。
 
//  获取 今天开始结束 时间
 
  public static TimeInfo getTodayStartAndEndTime() {
 
     Calendar localCalendar1 = Calendar.getInstance();
     localCalendar1.set(Calendar.HOUR_OF_DAY, 0 );
     localCalendar1.set(Calendar.MINUTE, 0 );
     localCalendar1.set(Calendar.SECOND, 0 );
     localCalendar1.set(Calendar.MILLISECOND, 0 );
     Date localDate1 = localCalendar1.getTime();
 
     long l1 = localDate1.getTime();
 
 
 
 
     Calendar localCalendar2 = Calendar.getInstance();
     localCalendar2.set(Calendar.HOUR_OF_DAY, 23 );
     localCalendar2.set(Calendar.MINUTE, 59 );
     localCalendar2.set(Calendar.SECOND, 59 );
     localCalendar2.set(Calendar.MILLISECOND, 999 );
     Date localDate2 = localCalendar2.getTime();
 
     long l2 = localDate2.getTime();
 
 
 
 
     TimeInfo localTimeInfo = new TimeInfo();
     localTimeInfo.setStartTime(l1);
     localTimeInfo.setEndTime(l2);
     return localTimeInfo;
 
   }
 
 
 
 
//  获取 昨天开始结束 时间
 
 
   public static TimeInfo getYesterdayStartAndEndTime() {
     Calendar localCalendar1 = Calendar.getInstance();
     localCalendar1.add(Calendar.DAY_OF_MONTH, - 1 ); //5
     localCalendar1.set(Calendar.HOUR_OF_DAY, 0 ); //11
     localCalendar1.set(Calendar.MINUTE, 0 ); //12
     localCalendar1.set(Calendar.SECOND, 0 ); //13
     localCalendar1.set(Calendar.MILLISECOND, 0 ); //Calendar.MILLISECOND
     Date localDate1 = localCalendar1.getTime();
     long l1 = localDate1.getTime();
 
 
     Calendar localCalendar2 = Calendar.getInstance();
     localCalendar2.add(Calendar.DAY_OF_MONTH, - 1 ); //5
     localCalendar2.set(Calendar.HOUR_OF_DAY, 23 ); //11
     localCalendar2.set(Calendar.MINUTE, 59 ); //12
     localCalendar2.set(Calendar.SECOND, 59 ); //13
     localCalendar2.set(Calendar.MILLISECOND, 999 ); //Calendar.MILLISECOND
     Date localDate2 = localCalendar2.getTime();
     long l2 = localDate2.getTime();
 
 
     TimeInfo localTimeInfo = new TimeInfo();
     localTimeInfo.setStartTime(l1);
     localTimeInfo.setEndTime(l2);
     return localTimeInfo;
   }
 
 
 
 
 
//  获取 前天开始结束 时间
 
 
   public static TimeInfo getBeforeYesterdayStartAndEndTime() {
     Calendar localCalendar1 = Calendar.getInstance();
     localCalendar1.add(Calendar.DAY_OF_MONTH, - 2 );
     localCalendar1.set(Calendar.HOUR_OF_DAY, 0 );
     localCalendar1.set(Calendar.MINUTE, 0 );
     localCalendar1.set(Calendar.SECOND, 0 );
     localCalendar1.set(Calendar.MILLISECOND, 0 );
     Date localDate1 = localCalendar1.getTime();
     long l1 = localDate1.getTime();
 
 
     Calendar localCalendar2 = Calendar.getInstance();
     localCalendar2.add(Calendar.DAY_OF_MONTH, - 2 );
     localCalendar2.set(Calendar.HOUR_OF_DAY, 23 );
     localCalendar2.set(Calendar.MINUTE, 59 );
     localCalendar2.set(Calendar.SECOND, 59 );
     localCalendar2.set(Calendar.MILLISECOND, 999 );
     Date localDate2 = localCalendar2.getTime();
     long l2 = localDate2.getTime();
     TimeInfo localTimeInfo = new TimeInfo();
     localTimeInfo.setStartTime(l1);
     localTimeInfo.setEndTime(l2);
     return localTimeInfo;
   }
 
 
 
 
 
   private static boolean isSameDay( long paramLong) {
     TimeInfo localTimeInfo = getTodayStartAndEndTime();
     return (paramLong > localTimeInfo.getStartTime()) && (paramLong < localTimeInfo.getEndTime());
   }
 
 
   private static boolean isYesterday( long paramLong) {
     TimeInfo localTimeInfo = getYesterdayStartAndEndTime();
     return (paramLong > localTimeInfo.getStartTime()) && (paramLong < localTimeInfo.getEndTime());
   }
 
 
 
 
 
   private static boolean isBeforeYesterday( long paramLong) {
     TimeInfo localTimeInfo = getBeforeYesterdayStartAndEndTime();
     return (paramLong > localTimeInfo.getStartTime()) && (paramLong < localTimeInfo.getEndTime());
   }
 
 
 
 
 
 
 
 
   public static boolean isSameYear( int year) {
     Calendar cal = Calendar.getInstance();
     int CurYear = cal.get(Calendar.YEAR);
//    Log.e("","CurYear="+CurYear);//2015
     return CurYear==year;
   }
 
 
。。。。。。
 
public class TimeInfo {
   private long startTime;
   private long endTime;
 
 
   public long getStartTime() {
     return this .startTime;
   }
 
 
   public void setStartTime( long paramLong) {
     this .startTime = paramLong;
   }
 
 
   public long getEndTime() {
     return this .endTime;
   }
 
 
   public void setEndTime( long paramLong) {
     this .endTime = paramLong;
   }
}

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