java_获取今天开始和结束时间

1、获取当天的开始时间

public static java.util.Date getDayBegin() {
    Calendar cal = new GregorianCalendar();
    cal.set(Calendar.HOUR_OF_DAY, 0);
    cal.set(Calendar.MINUTE, 0);
    cal.set(Calendar.SECOND, 0);
    cal.set(Calendar.MILLISECOND, 0);
    return cal.getTime();
}

2、获取当天的结束时间

public static java.util.Date getDayEnd() {
    Calendar cal = new GregorianCalendar();
    cal.set(Calendar.HOUR_OF_DAY, 23);
    cal.set(Calendar.MINUTE, 59);
    cal.set(Calendar.SECOND, 59);
    return cal.getTime();
}