public static String[] getNullPropertyNames (Object source) { final BeanWrapper src = new BeanWrapperImpl(source); PropertyDescriptor[] pds = src.getPropertyDescriptors(); Set<String> emptyNames = new HashSet<String>(); for(PropertyDescriptor pd : pds) { Object srcValue = src.getPropertyValue(pd.getName()); if (srcValue == null) emptyNames.add(pd.getName()); if(srcValue!=null&&srcValue instanceof String){ if(StringUtil.isBlank((String)srcValue)){ emptyNames.add(pd.getName()); } } } String[] result = new String[emptyNames.size()]; return emptyNames.toArray(result); }
BeanUtils.copyProperties(srcData, targetData,getNullPropertyNames(srcData));