public static class LocalSetupHelper
{
#region 字段
private static string json;
public static string path;
#endregion
#region 构造函数
static LocalSetupHelper()
{
if (string.IsNullOrEmpty(path))
{
string currentDirectory = Directory.GetCurrentDirectory();
path = currentDirectory + "\\LocalData.Data";
}
if (!File.Exists(path))
{
FileStream fs = File.Create(path);
fs.Close();
}
json = LoadFromFile(path);
}
#endregion
#region 获取
public static object GetData(Enum id,string propertyName)
{
return GetDatas(id, propertyName);
}
#endregion
#region 保存
public static void SetData(Enum id,string propertyName, object propertyValue)
{
SetData(ref json,id, propertyName, propertyValue);
SaveToFile(path);
}
#endregion
#region 移除
/// <summary>
/// 根据key值移除键值对
/// </summary>
/// <param name="propertyName">key值</param>
public static void RemovePropertyName(Enum id,string propertyName)
{
Remove(ref json,id, propertyName);
SaveToFile(path);
}
public static void ClearData()
{
json = string.Empty;
SaveToFile(path);
}
#endregion
#region 内部方法
private static void Add(ref string json, string propertyName, object propertyValue)
{
JObject jsonObj = JObject.Parse(json);
jsonObj.Add(propertyName, JToken.FromObject(propertyValue));
json = jsonObj.ToString();
}
private static void Update(ref string json, string propertyName, object propertyValue)
{
JObject jsonObj = JObject.Parse(json);
jsonObj[propertyName] = JToken.FromObject(propertyValue);
json = jsonObj.ToString();
}
private static object GetValue(string json, string propertyName)
{
dynamic jsonObj = JsonConvert.DeserializeObject(json);
return jsonObj[propertyName];
}
private static void Remove(ref string json, Enum id,string propertyName=null)
{
dynamic jsonObj = JsonConvert.DeserializeObject(json);
if (propertyName==null)
{
jsonObj.Remove(propertyName);
}
else
{
//jsonObj["总台"].Value<JObject>().Remove("账号");
jsonObj[id.ToString()].Remove(propertyName);//13.0版本
}
json = JsonConvert.SerializeObject(jsonObj);
}
private static void SetData(ref string json,Enum id,string propertyName, object propertyValue)
{
JObject fatherObj = new JObject();
JObject jsonObj;
if (!string.IsNullOrEmpty(json))
{
jsonObj = JObject.Parse(json);
try
{
if (jsonObj.Count != 0 || jsonObj[id.ToString()][propertyName] != null)
{
jsonObj[id.ToString()][propertyName] = JToken.FromObject(propertyValue);
fatherObj = jsonObj;
}
else
{
jsonObj.Add(propertyName, JToken.FromObject(propertyValue));
fatherObj.Add(id.ToString(), jsonObj);
}
}
catch (Exception ex)
{
LogHelper.WriteError(typeof(LocalSetupHelper), ex);
}
}
else
{
jsonObj = new JObject
{
{ propertyName, JToken.FromObject(propertyValue) }
};
fatherObj.Add(id.ToString(), jsonObj);
}
json = fatherObj.ToString();
}
private static object GetDatas(Enum id,string propertyName)
{
if (!string.IsNullOrEmpty(json))
{
dynamic jsonObj = JsonConvert.DeserializeObject(json);
return jsonObj[id.ToString()][propertyName];
}
return null;
}
private static void SaveToFile(string filePath)
{
File.WriteAllText(filePath, json);
}
private static string LoadFromFile(string filePath)
{
return File.ReadAllText(filePath);
}
#endregion
}
标签：jsonObj,Newtonsoft,string,C#,propertyName,改查,json,static,id From： https://www.cnblogs.com/jiaozai891/p/17127521.html