Java中如何将Object转换为List或实体对象呢?

1.Object转List对象

List<User> userList= MtUtils.ObjectToList(objData, User.class);

 
/**
 * Object对象转 List集合
 *
 * @param object Object对象
 * @param clazz 需要转换的集合
 * @param <T> 泛型类
 * @return
 */
public static <T> List<T> ObjectToList(Object object, Class<T> clazz){
    try {
        List<T> result = new ArrayList<>();
        if (object instanceof List<?>){
            for (Object o : (List<?>) object) {
                String string = JSONObject.toJSONString(o);
                T t = JSONObject.parseObject(string, clazz);
                result.add(t);
            }
            return result;
        }
        return null;
    }catch (Exception e){
        e.printStackTrace();
        System.out.println(e.getMessage());
    }
    return null;
}

2.Object转实体对象

User user = JSONObject.parseObject(JSONObject.toJSONString(obj), User.class);