对比两个对象属性值 并得出差异项

首先创建一个映射差异项的实体类存放 对比字段和对比结果

下面是对比代码 修改一下所要对比的对象和对比完返回的数据即可

/**
 * 获取差异项
 */
private FinanceOrganizationCompare compareMainWithMinor(FinanceOrganizationNew main, FinanceOrganizationNew minor) throws ServiceException {
    FinanceOrganizationCompare compareResult = new FinanceOrganizationCompare();
    //CompareWithApiResult compare = new CompareWithApiResult();
    PropertyDescriptor[] fields = BeanUtils.getPropertyDescriptors(main.getClass());
    int diffCount = 0;
    try {
        for (PropertyDescriptor field : fields) {
            Method readMethod = field.getReadMethod();
            Object mainObj = readMethod.invoke(main);
            Object minorObj = readMethod.invoke(minor);
            if (isIgnore(field)) {
                continue;
            }

            boolean isSame = (mainObj == null && minor == null) || (mainObj != null && mainObj.equals(minorObj));
            CompareWithApiResult result = new CompareWithApiResult();
            if (!isSame && !field.getName().equals("organizationId")) {
                diffCount++;
                //result.setEqual(isSame);
            }

            if (field.getPropertyType() == Date.class) {
                result.setRecommend(mainObj == null ? null : DateFormatUtils.format((Date) mainObj, "yyyy/MM/dd"));
                result.setSource(minorObj == null ? null : DateFormatUtils.format((Date) minorObj, "yyyy/MM/dd"));
            } else {
                result.setRecommend(mainObj == null ? null : mainObj.toString());
                result.setSource(minorObj == null ? null : minorObj.toString());
            }
            if (field.getName().equals("organizationId")){
                result.setFieldCode(field.getName());
                result.setFieldName(EnumExcelField.getFieldValueNameByFieldValue(field.getName() != null ? field.getName() : ""));
                result.setEqual(false);
                Method writeMethod = field.getWriteMethod();
                String json = JSONObject.toJSONString(result);
                String methodName = writeMethod.getName();
                Method resultWriteMethod = BeanUtils.findDeclaredMethodWithMinimalParameters(compareResult.getClass(), methodName);
                resultWriteMethod.invoke(compareResult, json);
                continue;
            }
            result.setFieldCode(field.getName());
            result.setFieldName(EnumExcelField.getFieldValueNameByFieldValue(field.getName() != null ? field.getName() : ""));
            result.setEqual(!isSame);
            Method writeMethod = field.getWriteMethod();
            String json = JSONObject.toJSONString(result);
            String methodName = writeMethod.getName();
            Method resultWriteMethod = BeanUtils.findDeclaredMethodWithMinimalParameters(compareResult.getClass(), methodName);
            resultWriteMethod.invoke(compareResult, json);
        }
    } catch (IllegalAccessException | InvocationTargetException e) {
        throw new ServiceException(e);
    }
    if (diffCount > 0) {
        return compareResult;
    }
    return null;
}

因为时间类型和Class对比完之后给实体类字段类型映射不上所以过滤一下

private static boolean isIgnore(PropertyDescriptor field) {
    String[] ignoreField = {"uploadTime", "uploadId", "class", "createDate","thirdOperation","secondOperation"};
    return Arrays.asList(ignoreField).contains(field.getName());
}