判断当前时间是否在指定时间区间（时间段）内

public static void main(String[] args)  throws Exception{
    Date date = new Date();
    SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    Date b = df.parse("2022-08-17 15:00:00");
    Date e = df.parse("2022-08-17 15:11:00");

    Calendar dateC = Calendar.getInstance();
    dateC.setTime(date);
    Calendar begin = Calendar.getInstance();
    begin.setTime(b);
    Calendar end = Calendar.getInstance();
    end.setTime(e);
    if (dateC.after(begin) && dateC.before(end)) {
        System.out.println("在区间里");
    }else{
        System.out.println("不在区间里");
    }

    boolean after = date.after(b);
    boolean before = date.before(e);
    if (after && before) {
        System.out.println("在区间里");
    }else{
        System.out.println("不在区间里");
    }

    LocalDateTime now = LocalDateTime.now();
    LocalDateTime beginTime = LocalDateTime.of(2022, 8, 17, 15, 0, 0);
    LocalDateTime endTime = LocalDateTime.of(2022, 8, 17, 15, 11, 0);
    if (now.isAfter(beginTime) && now.isBefore(endTime)) {
        System.out.println("在区间里");
    }else{
        System.out.println("不在区间里");
    }

}