java-springboot遍历表中的每一个字段，累加字段

    // 获取费用项合计 -- 费用项合计 = 费用项的汇总
private BigDecimal generateShareGetShareFY(WaterFeeYfy waterFeeYfy) {
        BigDecimal bigDecimal = BigDecimal.ZERO;
        Map<String, BigDecimal> map = new HashMap<String, BigDecimal>();
        Field[] fields = waterFeeYfy.getClass().getDeclaredFields();
        for (int i = 0, len = fields.length; i < len; i++) {
            fields[i].setAccessible(true);
            try {
                String fName = fields[i].getName();
                Object fVal = fields[i].get(waterFeeYfy);
                if (!fName.equals("serialVersionUID") && !fName.equals("zjf") && !fName.equals("fy1") && StringUtils.isNotNull(fVal) && fVal instanceof BigDecimal) {
                    bigDecimal = bigDecimal.add((BigDecimal) fVal);
                    map.put(fName, (BigDecimal) fVal);
                }
            } catch (IllegalArgumentException | IllegalAccessException e) {
                e.printStackTrace();
                log.info("ReflectUtil error:" + e.toString());
            }
        }
        return bigDecimal;
    }