C#如何实现JSON与对象之间互相转换功能示例

/// <summary>

/// Json转换成对象

/// </summary>

/// <typeparam name="T"></typeparam>

/// <param name="jsonText"></param>

/// <returns></returns>

public static T JsonToObject<T>(string jsonText)

{

  DataContractJsonSerializer s = new DataContractJsonSerializer(typeof(T));

  MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonText));

  T obj = (T)s.ReadObject(ms);

  ms.Dispose();

  return obj;

}

/// <summary>

/// 对象转换成JSON

/// </summary>

/// <typeparam name="T"></typeparam>

/// <param name="obj"></param>

/// <returns></returns>

public static string ObjectToJSON<T>(T obj)

{

  DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));

  string result = string.Empty;

  using (MemoryStream ms = new MemoryStream())

  {

    serializer.WriteObject(ms, obj);

    ms.Position = 0;

    using (StreamReader read = new StreamReader(ms))

    {

      result = read.ReadToEnd();

    }

  }

  return result;

}

//1.对象-->JSON

UserInfo info = new UserInfo

{

    Age = 10,

    Gender = 1,

    UserName = "刘德华",

    Lover = new List<string> { "美女1", "美女2", "美女3" },

    Address = new ContactAddress

    {

      Province = "湖南省",

      City = "长沙市",

      Country = "望城县",

      Details = "某旮旯快递找不到的地方"

    },

    DailyRecord = new Dictionary<string, string> { { "星期一", "吃饭" }, { "星期二", "洗衣服" }, { "星期三", "好事情" } }

};

string json = ObjectToJSON<UserInfo>(info);