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java 獲取昨天，上個(gè)星期一，本月開始時(shí)間戳，怎么寫呢？

Java

溫溫醬 2019-02-26 11:19:32

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5 回答

胡子哥哥

TA貢獻(xiàn)1825條經(jīng)驗(yàn) 獲得超6個(gè)贊

給你點(diǎn)思路

//獲得當(dāng)天0點(diǎn)時(shí)間 
public static int getTimesmorning(){ 
Calendar cal = Calendar.getInstance(); 
cal.set(Calendar.HOUR_OF_DAY, 0); 
cal.set(Calendar.SECOND, 0); 
cal.set(Calendar.MINUTE, 0); 
cal.set(Calendar.MILLISECOND, 0); 
return (int) (cal.getTimeInMillis()/1000); 
} 
//獲得當(dāng)天24點(diǎn)時(shí)間 
public static int getTimesnight(){ 
Calendar cal = Calendar.getInstance(); 
cal.set(Calendar.HOUR_OF_DAY, 24); 
cal.set(Calendar.SECOND, 0); 
cal.set(Calendar.MINUTE, 0); 
cal.set(Calendar.MILLISECOND, 0); 
return (int) (cal.getTimeInMillis()/1000); 
} 
//獲得本周一0點(diǎn)時(shí)間 
public static int getTimesWeekmorning(){ 
Calendar cal = Calendar.getInstance(); 
cal.set(cal.get(Calendar.YEAR),cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0,0); 
cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY); 
return (int) (cal.getTimeInMillis()/1000); 
} 
//獲得本周日24點(diǎn)時(shí)間 
public static int getTimesWeeknight(){ 
Calendar cal = Calendar.getInstance(); 
cal.set(cal.get(Calendar.YEAR),cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0,0); 
cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY); 
return (int) ((cal.getTime().getTime()+ (7 * 24 * 60 * 60 * 1000))/1000); 
} 
//獲得本月第一天0點(diǎn)時(shí)間 
public static int getTimesMonthmorning(){ 
Calendar cal = Calendar.getInstance(); 
cal.set(cal.get(Calendar.YEAR),cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0,0); 
cal.set(Calendar.DAY_OF_MONTH,cal.getActualMinimum(Calendar.DAY_OF_MONTH)); 
return (int) (cal.getTimeInMillis()/1000); 
} 
//獲得本月最后一天24點(diǎn)時(shí)間 
public static int getTimesMonthnight(){ 
Calendar cal = Calendar.getInstance(); 
cal.set(cal.get(Calendar.YEAR),cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0,0); 
cal.set(Calendar.DAY_OF_MONTH,cal.getActualMaximum(Calendar.DAY_OF_MONTH)); 
cal.set(Calendar.HOUR_OF_DAY, 24); 
return (int) (cal.getTimeInMillis()/1000); 
}

反對(duì) 回復(fù) 2019-03-01

一只名叫tom的貓

TA貢獻(xiàn)1906條經(jīng)驗(yàn) 獲得超3個(gè)贊

        //今天
        LocalDate ld = LocalDate.now();

        //昨天
        ZonedDateTime zdt = ld.minusDays(1).atStartOfDay(ZoneId.systemDefault());
        Instant instant = zdt.toInstant();

        //上周一
        LocalDate ld2 = ld.with(TemporalAdjusters.previous(DayOfWeek.MONDAY));
        ZonedDateTime zdt2 = ld2.atStartOfDay(ZoneId.systemDefault());
        Instant instant2 = zdt2.toInstant();

        //本月1號(hào)
        LocalDate ld3 = ld.withDayOfMonth(1);
        ZonedDateTime zdt3 = ld3.atStartOfDay(ZoneId.systemDefault());
        Instant instant3 = zdt3.toInstant();

反對(duì) 回復(fù) 2019-03-01