通过时间获取星期几

需要引入hutool----工具类



public static String dayOfWeek(Date date) {
        int day = DateUtil.dayOfWeek(date);
        switch (day) {
            case 1:
                return "星期天";
            case 2:
                return "星期一";
            case 3:
                return "星期二";
            case 4:
                return "星期三";
            case 5:
                return "星期四";
            case 6:
                return "星期五";
            case 7:
                return "星期六";
            default:
                return "";
        }
    }