private static final String JAVAP = "java.";
    private static final String JAVADATESTR = "java.util.Date";

    /**
     * 利用遞迴呼叫將Object中的值全部進行獲取
     *
     * @param timeFormatStr 格式化時間字串預設<strong>2017-03-10 10:21</strong>
     * @param c             物件
     * @return
     * @throws IllegalAccessException
     */
    public static Map<String, String> objectToMapString(String timeFormatStr, Class<?> c, Object o) throws IllegalAccessException {
        Map<String, String> map = new HashMap<>();
        objectTransfer(timeFormatStr, c, o, map);
        return map;
    }


    /**
     * 遞迴呼叫函式
     *
     * @param timeFormatStr 時間格式
     * @param c             父類
     * @param o             key(父物件)
     * @param map           返回的map
     * @return
     * @throws IllegalAccessException
     */
    private static Map<String, String> objectTransfer(String timeFormatStr, Class<?> c, Object o, Map<String, String> map) throws IllegalAccessException {
        boolean isExclude = false;
        //預設字串
        String formatStr = "YYYY-MM-dd HH:mm:ss";
        //設定格式化字串
        if (timeFormatStr != null && !timeFormatStr.isEmpty()) {
            formatStr = timeFormatStr;
        }
        List<Field[]> flist = new ArrayList<>();
        flist.add(c.getDeclaredFields());
        flist.add(c.getSuperclass().getDeclaredFields());
        for (int i = 0; i < flist.size(); i++) {
            for (Field field : flist.get(i)) {
                field.setAccessible(true);
                String fieldName = field.getName();
                Object value = null;
                value = field.get(o);
                if (value != null) {
                    Class<?> valueClass = value.getClass();
                    if (valueClass.isPrimitive()) {
                        map.put(fieldName, value.toString());
                    } else if (valueClass.getName().contains(JAVAP)) {//判斷是不是基本型別
                        if (valueClass.getName().equals(JAVADATESTR)) {
                            //格式化Date型別
                            SimpleDateFormat sdf = new SimpleDateFormat(formatStr);
                            Date date = (Date) value;
                            String dataStr = sdf.format(date);
                            map.put(fieldName, dataStr);
                        } else {
                            map.put(fieldName, value.toString());
                        }
                    } else {
                        //遞迴子物件 valueClass 子物件的class ，value 子物件
                        objectTransfer(timeFormatStr, valueClass, value, map);
                    }
                }
            }
        }
        return map;
    }
 

正在研究怎麼將Map賦值到物件中（物件中有多個子物件），糾結(ー`´ー)