c#json帮助类

 public class JsonFileHelper{public static string JsonConfigFileName = "SunSofteWareAppConfig.Json";#region 配置文件读写private static JsonSerializerSettings _settings = new JsonSerializerSettings{TypeNameHandling = TypeNameHandling.Auto, // 关键：自动保存类型信息Formatting = Formatting.Indented};/// <summary>/// 将配置对象写入程序执行目录指定名称的文件/// </summary>/// <param name="config">配置对象</param>/// <param name="strConfigFileFullPath">配置文件绝对路径</param>/// <returns></returns>public static string SaveConfig(object config, string strConfigFileFullPath){string strRes = string.Empty;try{if (config == null){if (File.Exists(strConfigFileFullPath)){File.Delete(strConfigFileFullPath);}}string strJson = Newtonsoft.Json.JsonConvert.SerializeObject(config, _settings);File.WriteAllText(strConfigFileFullPath, strJson);}catch (Exception ex){strRes = ex.Message;}return strRes;}/// <summary>/// 将配置对象写入程序执行目录指定名称的文件/// </summary>/// <param name="config">配置对象</param>/// <param name="strStartPath">文件存放目录</param>/// <param name="strConfigFileName">配置文件名称</param>/// <returns></returns>public static string SaveConfig(object config, string strStartPath, string strConfigFileName = null){string strRes = string.Empty;string strFileName = string.IsNullOrEmpty(strConfigFileName) ? JsonConfigFileName : strConfigFileName;string strPath = Path.Combine(strStartPath, strFileName);return SaveConfig(config, strPath);}/// <summary>/// 读取配置文件的配置信息对象/// </summary>/// <typeparam name="T">泛型类型</typeparam>/// <param name="strConfigFileFullPath">配置文件的绝对路径</param>/// <returns></returns>public static T ReadConfig<T>(string strConfigFileFullPath) where T : class{T oRes = default(T);try{if (File.Exists(strConfigFileFullPath)){string strJson = File.ReadAllText(strConfigFileFullPath);if (!string.IsNullOrEmpty(strJson)){object oConvertRes = Newtonsoft.Json.JsonConvert.DeserializeObject<T>(strJson, _settings);if (oConvertRes != null){oRes = oConvertRes as T;}}}}catch (Exception ex){throw ex;}return oRes;}/// <summary>/// 读取配置对象信息/// </summary>/// <typeparam name="T">配置对象泛型类型信息</typeparam>/// <param name="strStartPath">程序启动路径</param>/// <param name="strName">配置文件名称</param>/// <returns></returns>public static T ReadConfig<T>(string strStartPath, string strName) where T : class{string strPath = Path.Combine(strStartPath, strName);return ReadConfig<T>(strPath);}#endregion}