Model实体与Json互相转换

/// <summary>

/// 把对象转换为JSON字符串

/// </summary>

public static string GetJson<T>(T obj)

{

//记住 添加引用 System.ServiceModel.Web

/**

* 如果不添加上面的引用,System.Runtime.Serialization.Json; Json是出不来的哦

* */

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

using (MemoryStream ms = new MemoryStream())

{

json.WriteObject(ms, obj);

string szJson = Encoding.UTF8.GetString(ms.ToArray());

return szJson;

}

}

/// <summary>

/// 把JSON字符串还原为对象

/// </summary>

/// <typeparam name="T">对象类型</typeparam>

/// <param name="szJson">JSON字符串</param>

/// <returns>对象实体</returns>

public static T ParseFormJson<T>(string szJson)

{

T obj = Activator.CreateInstance<T>();

using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))

{

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

return (T)dcj.ReadObject(ms);

}

}