反射处理entity字段,递归处理

最新推荐文章于 2022-06-21 14:05:07 发布

渔夫星辰

最新推荐文章于 2022-06-21 14:05:07 发布

阅读量327

点赞数

分类专栏： java 文章标签： java 后端

本文链接：https://blog.youkuaiyun.com/YuChenIT/article/details/121676220

版权

java 专栏收录该内容

14 篇文章

订阅专栏


    final static List<Class> SYS_DEFAULT_BASE_CLASS = Lists.newArrayList(String.class, Long.class, Integer.class, Double.class,
            Float.class, BigDecimal.class, BigInteger.class, Boolean.class);

    final static List<Class> SYS_DEFAULT_ARRAY_CLASS = Lists.newArrayList(List.class, Set.class);

/**
     * 入参Date类型的字段,时区转换
     *
     * @param fields
     * @param body
     * @param sourceTimeZone
     * @param targetTimeZone
     */
    public static void dateFieldHandler(Field[] fields, Object body, String sourceTimeZone, String targetTimeZone, String methodName) {
        for (Field field : fields) {
            if (field == null) continue;
            //实体类入参有 @TimeFiledIgnore 注解的,不需要转换时区
            if (field.getAnnotation(TimeFiledIgnore.class) != null) continue;
            field.setAccessible(true);
            try {
                //Date字段
                if (field.getType() == Date.class && field.get(body) != null) {
                    //log.info("--------Date--" + field.getName());
                    field.set(body, DateZoneUtil.converDateGMT((Date) field.get(body), sourceTimeZone, targetTimeZone));
                    //集合
                } else if (SYS_DEFAULT_ARRAY_CLASS.contains(field.getType()) && field.get(body) != null) {

                    List list = (List) field.get(body);
                    if (CollectionUtil.isEmpty(list) || SYS_DEFAULT_BASE_CLASS.contains(list.get(0).getClass())) {
                        continue;
                    }
                    for (Object obj : list) {
                        Field[] superFields = obj.getClass().getSuperclass().getDeclaredFields();
                        Field[] declaredFields = obj.getClass().getDeclaredFields();
                        Field[] allFields = (Field[]) ArrayUtils.addAll(superFields, declaredFields);
                        dateFieldHandler(allFields, obj, sourceTimeZone, targetTimeZone, methodName);
                    }
                    //值不为空 && 自定义对象 && 不是基础数据类型 &&
                } else if (field.get(body) != null && !SYS_DEFAULT_BASE_CLASS.contains(field.get(body).getClass()) && !field.getType().isPrimitive()) {
                    //获取父类字段
                    Field[] superFields = field.get(body).getClass().getSuperclass().getDeclaredFields();
                    Field[] declaredFields = field.get(body).getClass().getDeclaredFields();
                    Field[] allFields = (Field[]) ArrayUtils.addAll(superFields, declaredFields);

                    dateFieldHandler(allFields, field.get(body), sourceTimeZone, targetTimeZone, methodName);
                }
            } catch (Exception e) {
                log.info("controller出参增强异常,methodName:{},error;{}", methodName, Throwables.getStackTraceAsString(e));
            }
        }
    }