c#动态更新替换json节点

需求项目json作为主模板，会应用到多个子模版，当后续项目变更只需要修改主模板中节点，并且能够动态更新到原来的子模版中去。

主模板示例：

{"A": {"A1": "","A2": false,"A3": 1},"B": {"B1": "","B2": false,"B3": 1},"C": {"C1": "","C2": false,"C3": 1}
}

模板修改后：

{"A": {"A1": "","A2": true,"A3": 2,"A4": "NewValue"},"B": {"B1": "UpdatedValue","B2": false,"B3": 1},"C": {"C1": "","C2": false,"C3": 1},"D": {"D1": "","D2": true,"D3": 3}
}

 UpdateJObject 方法实现可以动态更新json，主模板节点存在则新增，不存在可以变更也可以选择更新数据值。

program：

static void Main(string[] args)
{string oldJson = "{\"A\":{\"A1\":\"\",\"A2\":false,\"A3\":1},\"B\":{\"B1\":\"\",\"B2\":false,\"B3\":1},\"C\":{\"C1\":\"\",\"C2\":false,\"C3\":1}}";string newJson = "{\"A\":{\"A1\":\"\",\"A2\":true,\"A3\":2,\"A4\":\"NewValue\"},\"B\":{\"B1\":\"UpdatedValue\",\"B2\":false,\"B3\":1},\"C\":{\"C1\":\"\",\"C2\":false,\"C3\":1},\"D\":{\"D1\":\"\",\"D2\":true,\"D3\":3}}";JObject oldObject = JObject.Parse(oldJson);JObject newObject = JObject.Parse(newJson);Console.WriteLine("更新前:" + oldObject.ToString(Newtonsoft.Json.Formatting.Indented));// 更新旧JSON对象UpdateJObject(oldObject, newObject);Console.WriteLine("存在则更新，不存在新增，更新后:" + oldObject.ToString(Newtonsoft.Json.Formatting.Indented));oldObject = JObject.Parse(oldJson);newObject = JObject.Parse(newJson);// 更新旧JSON对象UpdateJObject(oldObject, newObject, false);Console.WriteLine("存在则跳过，不存在新增，更新后:" + oldObject.ToString(Newtonsoft.Json.Formatting.Indented));}/// <summary>
/// 更新替换json节点
/// </summary>
/// <param name="target">被更新json</param>
/// <param name="source">源json</param>
/// <param name="isUpdateOriginalData">是否更新目标已存在的节点数据</param>
static void UpdateJObject(JObject target, JObject source, bool isUpdateOriginalData = true)
{foreach (var child in source){JToken targetChild = target[child.Key];if (targetChild == null){// 正确添加child到targettarget.Add(new JProperty(child.Key, child.Value));}else if (child.Value.Type == JTokenType.Object){// 如果child是对象，则递归更新if (targetChild.Type == JTokenType.Object){UpdateJObject(targetChild as JObject, child.Value as JObject, isUpdateOriginalData);}else{if (isUpdateOriginalData)target[child.Key] = child.Value;// 如果targetChild不是对象，则替换整个值}}else{if (isUpdateOriginalData)target[child.Key] = child.Value;// 如果child不是对象，则直接替换值}}
}