經過Calendar簡單解析Date日期，獲取年、月、日、星期的數值

有時候項目中須要用到Date的年、月、日、星期的數值。那麼解析方法以下：

/**解析日期，獲取年月日星期*/
    private void parseDateToYearMonthDayWeek(Date date){

        //獲取默認選中的日期的年月日星期的值，並賦值
        Calendar calendar = Calendar.getInstance();//日曆對象
        calendar.setTime(date);//設置當前日期

        String yearStr = calendar.get(Calendar.YEAR)+"";//獲取年份
        int month = calendar.get(Calendar.MONTH) + 1;//獲取月份
        String monthStr = month < 10 ? "0" + month : month + "";
        int day = calendar.get(Calendar.DATE);//獲取日
        String dayStr = day < 10 ? "0" + day : day + "";
        int week = calendar.get(Calendar.DAY_OF_WEEK);
        String weekStr = "";
        /*星期日:Calendar.SUNDAY=1
         *星期一:Calendar.MONDAY=2
         *星期二:Calendar.TUESDAY=3
         *星期三:Calendar.WEDNESDAY=4
         *星期四:Calendar.THURSDAY=5
         *星期五:Calendar.FRIDAY=6
         *星期六:Calendar.SATURDAY=7 */
        switch (week) {
            case 1:
                weekStr = "週日";
                break;
            case 2:
                weekStr = "週一";
                break;
            case 3:
                weekStr = "週二";
                break;
            case 4:
                weekStr = "週三";
                break;
            case 5:
                weekStr = "週四";
                break;
            case 6:
                weekStr = "週五";
                break;
            case 7:
                weekStr = "週六";
                break;
            default:
                break;
        }
        Log.e(TAG, yearStr + "年" + monthStr + "月" + dayStr + "日" + "  " + weekStr);
    }

使用方法：

Date todayDate = Calendar.getInstance().getTime();

parseDateToYearMonthDayWeek(todayDate);

打印日誌：