java对比两个对象的值是否有差异（比较相同属性名的字段）

我就是我 2024-03-02 09:32 13阅读 0赞

/**
         * 对比两个对象的值是否有差异
         * @param source 对象1
         * @param target 对象2
         * @param isInclude 属性集合是发需要包含对象字段
         * @param fields 属性集合
         * @param <T>
         * @return
         */
        public static <T> Map<String, Object> compareBean(T source, T target, boolean isInclude, String... fields) {
            Map<String, Object> sourceMap = BeanUtil.beanToMap(source);
            Map<String, Object> targetMap = BeanUtil.beanToMap(target);
            Map<String, Object> resultMap = new HashMap<>(16);
            for (Map.Entry<String, Object> entry : sourceMap.entrySet()) {
                if (ArrayUtil.isNotEmpty(fields)) {
                    if (isInclude && !ArrayUtil.contains(fields, entry.getKey())) {
                        continue;
                    }
                    if (!isInclude && ArrayUtil.contains(fields, entry.getKey())) {
                        continue;
                    }
                }
    
                Object oldVal = entry.getValue();
                Object newVal = targetMap.get(entry.getKey());
                boolean isOldAndNewBlank = (oldVal == null || (oldVal instanceof String && StringUtils.isBlank((String) oldVal)))
                        && (newVal == null || (newVal instanceof String && StringUtils.isBlank((String) newVal)));
                if (isOldAndNewBlank) {
                    continue;
                }
                if (!Objects.equals(oldVal, newVal)) {
                    resultMap.put(entry.getKey(), String.format("oldVal:%s, newVal:%s", oldVal, newVal));
                }
            }
            return resultMap;
        }