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java判断今天,昨天,前天,不能用秒间隔的简单实例

2017-03-15 10:58 489 查看

实例如下：

一 json optString 解析的TimesTamp string
二 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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