net自带JSON封装管理类[通用类]

using System;

/// <summary>
/// author:Stone_W
/// date:2011.1.29
/// desc:微软自带Json管理类封装
/// </summary>
public class MyJSONUtility
{
    public MyJSONUtility() { }

    #region 封装JSON
    /// <summary>
    /// 封装JSON
    /// </summary>
    /// <typeparam name="T">对象类型</typeparam>
    /// <param name="obj">封装为JSON的对象</param>
    /// <returns>string</returns>
    public static string GetJSON<T>(object obj)
    {
        string result = String.Empty;
        try
        {
            System.Runtime.Serialization.Json.DataContractJsonSerializer serializer =
               new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(T));
            using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
            {
                serializer.WriteObject(ms, obj);
                result = System.Text.Encoding.UTF8.GetString(ms.ToArray());
            }
        }
        catch (Exception ex)
        {
            throw ex;
        }
        return result;
    }
    #endregion

    #region 把json还原为对象
    /// <summary>
    /// 把json还原为对象
    /// </summary>
    /// <typeparam name="T">对象类型</typeparam>
    /// <param name="jsonStr">json字符串</param>
    /// <returns>T 对象类型</returns>
    public static T ParseFormByJson<T>(string jsonStr)
    {
        T obj = Activator.CreateInstance<T>();
        using (System.IO.MemoryStream ms =
            new System.IO.MemoryStream(System.Text.Encoding.UTF8.GetBytes(jsonStr)))
        {
            System.Runtime.Serialization.Json.DataContractJsonSerializer serializer =
                new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(T));
            return (T)serializer.ReadObject(ms);
        }
    }
    #endregion

}