java Date 當天時間戳處理

1. 代碼

 private static final String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
    private static Date getStartTime() {
        Calendar todayStart = Calendar.getInstance();
        todayStart.set(Calendar.HOUR_OF_DAY, 0);
        todayStart.set(Calendar.MINUTE, 0);
        todayStart.set(Calendar.SECOND, 0);
        todayStart.set(Calendar.MILLISECOND, 0);
        return todayStart.getTime();
    }

    private static Date getEndTime() {
        Calendar todayEnd = Calendar.getInstance();
        todayEnd.set(Calendar.HOUR_OF_DAY, 23);
        todayEnd.set(Calendar.MINUTE, 59);
        todayEnd.set(Calendar.SECOND, 59);
        todayEnd.set(Calendar.MILLISECOND, 999);
        return todayEnd.getTime();
    }

　　public static String getStartTimeStr(){
 return new SimpleDateFormat(DATE_FORMAT).format(getStartTime());
}

public static String getEndTimeStr(){
 return new SimpleDateFormat(DATE_FORMAT).format(getEndTime());
}

 

2. 其餘的joda框架好像也能夠方便get到當日起止時間戳

 java自帶日期也好使， Calendar.HOUR_OF_DAY要搞對，否則出現過了12點，結果從今日12時到明日12時